Page 1 INSTRUCTION MANUAL For...は専用機種。複数の場合は「,」で区切る。不要の場合はとる。形名を入力。複数の場合は改行 8826 品名を入力。 MEMORY HiCORDER...
Page 3: Table Of Contents
Contents Introduction Inspection Safety Notes Notes on Use Chapter Summary Chapter 1 Product Overview 1.1 Major Features 1.2 Names and Function of Parts Chapter 2 Installation and Preparation 2.1 Installation of the Unit 2.2 Power Supply and Ground Connection 2.3 Power On/Off 2.4 Connection of the Input Unit 2.4.1 8936 ANALOG UNIT / 8938 FFT ANALOG UNIT 2.4.2 8937 VOLTAGE/TEMP UNIT...
Page 4 3.3 Other Keys Operation 3.4 Screen Configuration 3.5 Using the Key Lock Function Chapter 4 Memory Recorder Function 4.1 Outline of the Memory Recorder Function 4.2 Operation Sequence (MEM) 4.3 STATUS Settings (MEM) 4.3.1 Setting the Function Mode 4.3.2 Setting the Time Axis Range 4.3.3 Setting the Recording Length 4.3.4 Setting the Format 4.3.5 Setting the Display Size...
Page 5 5.3.9 Setting the Printer Function (Real Time Printing) 5.3.10 Setting the Auto Save Function 5.3.11 Setting the Interpolation (dot-line, X-Y only) 5.3.12 Setting the Display Clear Function (X-Y only) 5.4 Using the X-Y CONT Recorder 5.5 Settings on the Display Screen (REC) 5.6 Start and Stop Operation (REC) Chapter 6 RMS Recorder Function 6.1 Outline of the RMS Recorder Function...
Page 6 7.3.11 Setting the Real-Time Save 7.4 STATUS2 Settings (REC&MEM) 7.4.1 Using the Sequential Save Function 7.5 Settings on the Display Screen (REC&MEM) 7.6 Start and Stop Operation (REC&MEM) Chapter 8 FFT Function 8.1 Outline of the FFT Function 8.2 Operation Sequence (FFT) 8.3 STATUS1 Settings (FFT) 8.3.1 Setting the Function Mode 8.3.2 Setting the FFT Channel Mode...
Page 7 8.7.7 Transfer Function [TRF] 8.7.8 Cross Power Spectrum [CSP] 8.7.9 Cross Correlation [CCR] 8.7.10 Unit Impulse Response [IMP] 8.7.11 Coherence [COH] 8.7.12 Octave Analysis [OCT] Chapter 9 Input Channel Settings 9.1 Setting Items for Input Channel 9.2 Input Channel Setting Procedure 9.3 Setting the CHANNEL1 Screen 9.3.1 Setting the Waveform Display Color 9.3.2 Setting the Waveform Display Graph Position...
Page 8 9.10 Setting the 8937 VOLTAGE/TEMP UNIT 9.10.1 Making the Settings of Voltage Measurement 9.10.2 Making the Settings of Temperature Measurement 9.11 Setting the 8938 FFT ANALOG UNIT 9.12 Setting the 8939 STRAIN UNIT 9.13 Setting the 8940 F/V UNIT 9.13.1 Setting Frequency Mode 9.13.2 Setting the Count Mode 9.13.3 Setting the Pulse Duty Ratio Mode 9.13.4 Setting the Voltage Mode...
Page 9 Chapter 11 Display Screen Operation 11.1 Scrolling the Waveform 11.2 Using the A/B Cursors 11.2.1 Using the Line Cursors (Vertical) 11.2.2 Using the Line Cursors (Horizontal) 11.2.3 Using the Trace Cursors 11.2.4 Using the A/B Cursors (X-Y Screen) 11.3 The Magnification/Compression Ratio Along the Time Axis 11.4 Zoom Function 11.5 Input Level Monitor Function 11.6 View Function (VIEW key)
Page 10 12.6 INITIALIZE Screen 12.6.1 TIME SET (Setting the Clock) 12.6.2 WAVE DATA CLEAR (DATA INITIALIZE) 12.6.3 SYSTEM RESET 12.6.4 System Information 12.7 SELF CHECK 12.7.1 ROM/RAM CHECK 12.7.2 PRINTER CHECK 12.7.3 DISPLAY CHECK 12.7.4 KEY CHECK 12.7.5 PC CARD CHECK Chapter 13 Printout of Measurement Data 13.1 Printout of Measurement Data Operating Procedure 13.2 Setting the STATUS Screen (printout)
Page 11 14.2.1 Setting the MO Drive 14.3 PC Card 14.3.1 Using the PC Card Slot (PC Card with a Cable Only) 368 14.4 SCSI Interface 14.4.1 SCSI Interface Specifications 14.4.2 Setting the MO Drive 14.4.3 Setting the SCSI Number 14.5 Selecting the Media Type 14.6 FORMAT (Initializing) 14.7 SAVE 14.7.1 Setting the Saving Items...
Page 12 16.2.6 Perform Waveform Processing 16.3 Waveform GO/NG Evaluation 16.3.1 Setting the Evaluation Area 16.3.2 Setting the Waveform Evaluation Mode 16.3.3 Setting the GO/NG Stop Mode 16.3.4 Creating the Evaluation Area 16.3.5 Editor Command Details Chapter 17 External Input/Output Terminals 17.1 Connecting the Terminals 17.2 External Trigger Input Terminal [EXT TRIG] 17.3 External Trigger Output Terminal [TRIG OUT] 17.4 External Sampling Terminal [EXT SMPL]...
Page 13 19.2.4 8939 STRAIN UNIT 19.2.5 8940 F/V UNIT 19.2.6 8947 CHARGE UNIT Chapter 20 Maintenance and Service 20.1 Maintenance and Inspection 20.2 Unit Replacement Procedure 20.3 Adding the 9599 MEMORY BOARD 20.4 Removing the Battery Before Discarding the Unit 20.5 Troubleshooting Chapter 21 Appendix 21.1 Error Messages 21.2 Glossary...
Page 15: Introduction
──────────────────────────────────────────────────── Introduction Thank you for purchasing the HIOKI "8826 MEMORY HiCORDER". To obtain maximum performance from the instrument, please read this manual first, and keep it handy for future reference. Inspection ・When you receive the instrument, inspect it carefully to ensure that no damage occurred during shipping.
Page 16 ──────────────────────────────────────────────────── Options 8936 ANALOG UNIT 8937 VOLTAGE/TEMP UNIT 8938 FFT ANALOG UNIT 8939 STRAIN UNIT 8940 F/V UNIT 8947 CHARGE UNIT 9557 RS-232C CARD 9558 GP-IB CARD 9559 PRINTER CARD 9578 10BASE-T LAN CARD 9626 PC CARD 32M 9627 PC CARD 64M 9726 PC CARD 128M 9727 PC CARD 256M 9728 PC CARD 512M...
Page 17: Safety Notes
──────────────────────────────────────────────────── Safety Notes This instrument is designed to comply with IEC 61010 Safety Standards, WARNING and has been thoroughly tested for safety prior to shipment. However, mishandling during use could result in injury or death, as well as damage to the instrument Be certain that you understand the instructions and precautions in the manual before use.
Page 18 ──────────────────────────────────────────────────── Conventions used in this manual The following symbols in this manual indicate the relative importance of cautions and warnings. Indicates that incorrect operation presents an extreme hazard that DANGER could result in serious injury or death to the user. Indicates that incorrect operation presents a significant hazard that WARNING could result in serious injury or death to the user.
Page 19: Notes On Use
DANGER Maximum input voltage ratings for the input units and the input terminals of the 8826 are shown below. To avoid the risk of electric shock and damage to the units, take care not to exceed these ratings. The maximum rated voltage to earth of the input units (voltage between input terminals and 8826 frame ground, and between inputs of other analog units) is shown below.
Page 20 ■Logic Probe Connection The logic input and 8826 Unit share a common ground. Therefore, if power is supplied to the measurement object of the logic probe and to the 8826 from different sources, an electric shock or damage to the equipment may result.
Page 21 MO drive is open. Maximum laser output is 50 mW (at 685 nm, pulsed). A laser warning label is attached to the bottom of the 8826 Unit. Refer to Section 1.2 for the label location.
Page 22 viii ──────────────────────────────────────────────────── Installation environment ■ CAUTION ･ This instrument should be installed and operated indoors only, between 5 and 40℃ and 35 to 80% RH. ･ Do not store or use the instrument where it could be exposed to direct sunlight, high temperature or humidity, or condensation.
Page 23 Using recording paper of a different specification may not only result in impaired printing quality, but even prevent the printer from operating. Always use the HIOKI specified instrument. ･ Printing is not possible if the recording paper is loaded wrong-side up. (See Section 2.8)
Page 24: Chapter Summary
──────────────────────────────────────────────────── Chapter Summary Chapter 1 Product Overview Contains an overview of the unit and its features. Chapter 2 Installation and Preparation Explains how to set the unit up for measurement. Chapter 3 Basic Key Operation Explains how to operate the keys and the JOG/SHUTTLE control for carrying out basic measurement functions.
Page 25 ──────────────────────────────────────────────────── Chapter 16 Waveform Operation Function Explains how to use the Calculating, Waveform Parameters/Evaluating Parameter value and Waveform GO/NG Evaluation. Chapter 17 External Input/Output Terminals Gives specifications and usage details of the external input/output terminals, and explains how to use the key lock function.
Page 26 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── Chapter Summary...
Page 27: Chapter 1 Product Overview
──────────────────────────────────────────────────── Chapter 1 Product Overview ────────────────────────────────────────────────────...
Page 28: Major Features
──────────────────────────────────────────────────── 1.1 Major Features (1) Powerful waveform capture capability ・Using the analog unit 8936 (unbalanced), waveform recording can be performed in up to 32 channels with 12-bit resolution. (2) Easy to read, TFT color display ・The 10.4-inch TFT color screen with a resolution of 640 × 480 dots shows all information at a glance.
Page 29 ──────────────────────────────────────────────────── (12) The floppy-disk drive, MO drive (option), and PC card can be used as external storage means. ・The waveform data and/or setup conditions can be stored on a floppy disk, MO disk, or PC card (SRAM, flash ATA, or HDD card). (13) SCSI and PC card slots are originally equipped as external interfaces.
Page 30: Names And Function Of Parts
──────────────────────────────────────────────────── 1.2 Names and Function of Parts SYSTEM key ･ Causes the display to show the SYSTEM screen which serves for making system-wide settings such as for the scaling function. STATUS key ･ Causes the display to show the STATUS screen which serves for setting most measurement parameters.
Page 31 ──────────────────────────────────────────────────── HELP key ･ Provides on-line help. VALUE key ･ Uses to set numerical values WAVE key ･ Uses to scroll the waveform. A･B CSR key ･ Uses to move the A/B cursor. ･ Rotary control knob that serves to change values, move the A/B cursors, and scroll the waveform.
Page 32 (CH A to H). KEY LOCK switch ･ When this switch is set to ON, all keys of the 8826 are inactive. The key lock condition is maintained also when the power is switched off and on again.
Page 33 ──────────────────────────────────────────────────── Right side Left side Upper Bottom Handle ･ Serves for transporting the 8826. Ventilation slots Blowing slot Terminal guard ･ Guard to the analog input connectors. Printer Stand ･ The unit can also be propped up at an angle using the stand.
Page 34 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 1.2 Names and Function of Parts...
Page 35: Chapter 2 Installation And Preparation
──────────────────────────────────────────────────── Chapter 2 Installation and Preparation 2.1 Installation of the Unit Installation orientation Install the unit on a flat, level surface. The unit can also be propped up at an angle, using the stand. ・The terminal guard protects the input connectors of the equipment from NOTE damages.
Page 36 35 to 80%RH (no condensation); 50±10%RH (no condensation) recommended for high-precision measurements. (3) Ventilation Avoid obstructing the ventilation holes on the sides of the 8826, as it could overheat and be damaged, or cause a fire. Ventilation Blowing slot Ventilation Right side...
Page 37: Power Supply And Ground Connection
(1) Verify that the AC power switch of the 8826 is set to OFF. (2) Plug the grounded three-core power cord supplied into the AC power connector on the right side of the 8826.
Page 38 ──────────────────────────────────────────────────── Function Ground Terminal When measuring in a "noisy " environment, noiseproofing can be improved by grounding the function ground terminal. Function ground terminal ──────────────────────────────────────────────────── 2.2 Power Supply and Ground Connection...
Page 39: Power On/Off
──────────────────────────────────────────────────── 2.3 Power On/Off Check the following points before the power switch is turned on. WARNING Power supply matches Rated supply voltage (100 to 240 VAC: Voltage fluctuations of 10% from the rated supply voltage are taken into account.) and rated supply frequency (50/60 Hz). The Unit is correctly installed (Section 2.1).
Page 40: Connection Of The Input Unit
Forcibly pulling the connector without releasing the lock, or pulling on the cable, can damage the connector. ・Using an input cord other than that specified by HIOKI may damage the BNC connector or result in measurement errors due to contact failure.
Page 41: 8937 Voltage/Temp Unit
Connecting to the connector cable (voltage measurement) ■ (1) Align the BNC connector with the guide groove of the 8826 input connector, and turn clockwise while pressing in to lock the connector. (Use the 9198 CONNECTION CORD for voltage measurement with the 8937.)
Page 42: 8939 Strain Unit
──────────────────────────────────────────────────── 2.4.3 8939 STRAIN UNIT ・Connect only the sensor to the conversion cable supplied with the 8939 CAUTION STRAIN UNIT. ・To disconnect the conversion cable, always unlock the plug and pull out the cable. ■ Connecting to the main unit (1) Align the projection on the unit connector with the cutout on the conversion cable, and insert the plug into the connector.
Page 43: 8940 F/V Unit
Use the optional 9198 CONNECTION CORD for Groove of the BNC connection to the F/V UNIT. Align the BNC connector with the guide groove of the 8826 input connector, and turn clockwise while pressing in to lock the Connector guide connector.
Page 44 ──────────────────────────────────────────────────── (1) Connecting to 9318 CONVERSION CABLE The MEMORY HiCORDER and the equipment being measured are powered off before making connections. Align the groove on the conversion cable plug with the sensor connector on the F/V unit and push inward until the connector locks into place. Align the groove on the conversion cable connector with the adapted clamp on sensor plug and push inward until the connector locks into place.
Page 45 ──────────────────────────────────────────────────── (2) Connecting to 9319 CONVERSION CABLE The MEMORY HiCORDER and the equipment being measured are powered off before making connections. CLAMP ON PROBE’s Align the groove on the 3273 or 3273-50 termination connector with the pin on the BNC connector on the F/V unit, then slide the termination connector over the BNC connector and turn to lock it in place.
Page 46: 8947 Charge Unit
──────────────────────────────────────────────────── 2.4.5 8947 CHARGE UNIT ・Never connect the connection cable to the unit while it is connected to the WARNING measurement object, to avoid electric shock. ・The BNC connectors for each channel and the miniature connection terminals share a common ground. Do not connect both types of terminals at the same time. ・When the PREAMP measurement mode is selected, voltage (15 V at 2 mA) is applied internally to the BNC connector when measurement starts.
Page 47 ──────────────────────────────────────────────────── ■Connecting a Charge-Output Type Acceleration Sensor (CHARGE mode) Use a cable with a plug to mate with the miniature connector to connect the pickup sensor to the unit in CHARGE mode (10-32 miniature connection terminal). (1) Insert the miniature connector plug into the miniature connector on the unit, and turn it clockwise until tight.
Page 48: Logic Probe Connection
The logic input and 8826 Unit share a common ground. Therefore, if power DANGER is supplied to the measurement object of the logic probe and to the 8826 from different sources, an electric shock or damage to the equipment may result.
Page 49: 9018-10, 9132-10 Clamp On Probe Connection
See Section 9.7.2. ･ When the clamp-on probe is used for measurement, the measurement precision will be affected both by the 8826 precision and clamp-on probe precision ratings. The same is true for cases where other clamps are used. ･ When using the 9018, 9132 CLAMP ON PROBE, always use the 9199 CONVERSION ADAPTOR.
Page 50: Loading Recording Paper
──────────────────────────────────────────────────── 2.8 Loading Recording Paper (1) Press the stock cover and open it. Stock cover (2) Raise the head up/down lever. Head up/down lever Attachment (3) Insert the attachments into the ends of the roll of recording paper and set the paper into its holder.
Page 51 ──────────────────────────────────────────────────── (5) Pull the end of the recording paper out at least 10 cm, and make sure that it is positioned quite straight. (6) Put down the head up/down lever. (7) Pull the recording paper to the outside through the printer exit slot in the stock cover. (8) Close the stock cover, and finish by tearing off the recording paper against the edge of the printer exit slot.
Page 52: Care Of Recording Paper
──────────────────────────────────────────────────── 2.9 Care of Recording Paper Care of recording paper ・While unopened, thermal paper will not be affected by the environment, provided that ambient temperature and humidity do not exceed normal levels. For long-term storage, temperature should be lower than 40. Low temperatures cause no problem.
Page 53: Notes On Measurement
Maximum input voltage ratings for the input units and the input DANGER terminals of the 8826 are shown below. To avoid the risk of electric shock and damage to the units, take care not to exceed these ratings. The maximum rated voltage to earth of the input units (voltage between input terminals and 8826 frame ground, and between inputs of other analog units) is shown below.
Page 54 Using the product under such conditions could result in electrocution. Replace the connection cords specified by Hioki. ・When making measurements on an AC power line for example, using a voltage...
Page 55 ──────────────────────────────────────────────────── Difference between "370 V AC, DC" and "400 V DC max." indication 370 V AC, DC: RMS value is displayed. 400 V DC max.: Instantaneous value is displayed. The maximum input voltage (400 V DC max.) is defined as the superposition of DC component and AC peak, as shown in the figure below.
Page 56: Maximum Input Voltage
──────────────────────────────────────────────────── 2.10.1 Maximum Input Voltage ■ 8936 ANALOG UNIT, 8938 FFT ANALOG UNIT 8826 8936 400 VDC max 8938 370 VAC, DC Ｌ 370 VAC, DC ■ 8937 VOLTAGE/TEMP UNIT 8826 8937 30 V rms or 60 VDC 30 V rms Ｌ...
Page 57: Using A Voltage Transformer
When making measurements on an AC power line for example, using a voltage transformer, be sure to connect the voltage transformer ground terminal to ground. 【 When the voltage transformer has a ground terminal 】 8936, 8938 Ｈ 8826 Ｌ GND terminal Input Voltage transformer (PT) ground terminal Ground 【...
Page 58 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 2.10 Notes on Measurement...
Page 59: Chapter 3 Basic Key Operation
──────────────────────────────────────────────────── Chapter 3 Basic Key Operation 3.1 Basic Key Operation 3.1.1 Basic Display Operation ( MENU ) SYSTEM Calls up the SYSTEM screen. Serves to switch pages of the SYSTEM screen. Serves to make common settings for all functions (clock setting, comment input, etc.) on the SYSTEM screen.
Page 60: Printer Key Operation
──────────────────────────────────────────────────── 3.1.2 Printer Key Operation PRINT key Serves to print out the waveform. Output destination by the PRINT key can be selected. See Section 12.5.2. COPY key Produces a hard copy of the display content. Copy destination by the COPY key can be selected. See Section 12.5.1.
Page 61: Basic Input Operation
──────────────────────────────────────────────────── 3.1.5 Basic Input Operation Set the basic settings for analog channels. See Chapter 9. CH&NUM key Sets channels or inputs numerical values ・Channel parameters can be directly input using the POSITION and the RANGE keys. ・In numerical-value input, these keys are used as numeric keys.
Page 62: Other Keys Operation
──────────────────────────────────────────────────── 3.3 Other Keys Operation MANU TRIG key When the unit is in trigger standby mode, pressing this key causes manual triggering. See section 10.12. CH. SET key Enables the measurement conditions for each channel on the display screen to be set or changed. The setup can be performed even during startup.
Page 63: Screen Configuration
──────────────────────────────────────────────────── 3.4 Screen Configuration SET UP SCALING COMMENT INTERFACE INITIALIZE SELF CHECK SYSTEM From the System screen, click the DISP On the Display screen, press the key to move between the setting screens. to toggle between normal-screen display and wide-screen display. STATUS MEMORY DIV PARAMETER...
Page 64: Using The Key Lock Function
──────────────────────────────────────────────────── 3.5 Using the Key Lock Function ・This function disables all front-panel controls of the 8826. ・The function serves to prevent unintended changes to settings during a measurement. Method (1) Set the KEY LOCK switch to ON. (2) To cancel the function, set the KEY LOCK switch to OFF.
Page 65: Chapter 4 Memory Recorder Function
──────────────────────────────────────────────────── Chapter 4 Memory Recorder Function ────────────────────────────────────────────────────...
Page 66: Outline Of The Memory Recorder Function
──────────────────────────────────────────────────── 4.1 Outline of the Memory Recorder Function The memory recorder function has the following features. (1) After being stored in the internal memory, input signal data can be displayed and printed. (2) All input channel data are recorded on the same time axis. Since data for all channels can be superimposed, the relative relationship between input signals can be observed visually.
Page 67 ──────────────────────────────────────────────────── (13) Averaging This makes it possible to eliminate noise and irregular signal components. (14) Waveform evaluation function detects abnormal waveforms. ──────────────────────────────────────────────────── 4.1 Outline of the Memory Recorder Function...
Page 68: Operation Sequence (Mem)
──────────────────────────────────────────────────── 4.2 Operation Sequence (MEM) Preparation 測定の準備を行います Installation of the Unit Turn on the power ・See Chapter 2. Connect the inputs Setting the STATUS1 screen Setting the STATUS1 screen Select the function See Section 4.3.1. ・Select the memory recorder function. ・Press the STATUS key to call up the ime axis range See Section 4.3.2.
Page 69 ──────────────────────────────────────────────────── Advanced function Advanced function Memory segmentation Sequential Save Function ・See Chapter 15. Multi-Block Function Waveform operation Function Waveform parameter calculation ・See Chapter 16. Calculatiing Waveform Data Setting the CHANNEL Screen Setting the CHANNEL Screen ・Set the waveform display color for each channel, measurement range, input coupling, zero position, and filter.
Page 70: Status Settings (Mem)
──────────────────────────────────────────────────── 4.3 STATUS Settings (MEM) 4.3.1 Setting the Function Mode Screen : STATUS1, CHANNEL, DISPLAY Method Method Call up the STATUS1, CHANNEL or DISPLAY screen. Move the flashing cursor to the position shown in the figure on the left. Press the F1 [ MEMORY ] Selection Selection...
Page 71: Setting The Time Axis Range
──────────────────────────────────────────────────── 4.3.2 Setting the Time Axis Range ・Set the speed for inputting and storing the waveform of the input signal. ・Time axis range setting expresses the time for 1 DIV. ・The sampling period is 1/100th of the set value for the time axis range. (100 samples/DIV) Screen STATUS1, DISPLAY...
Page 72: Setting The Recording Length
──────────────────────────────────────────────────── 4.3.3 Setting the Recording Length ・The length of recording for one measurement operation (number of DIV) can be set. Select the recording length. SELECT： ARBITRARY：Any recording length can be selected by the user. Screen STATUS1, DISPLAY Method-1 Method Fixed recording length mode Call up the STATUS1 or DISPLAY screen.
Page 73 ──────────────────────────────────────────────────── ・Depending on the number of channels, the recording length is limited. NOTE ・If the recording length is changed during measurement, measurement is restarted using the newly set recording length. ■ The relation between number of channels and maximum recording length Maximum recording length Memory capacity 32 ch...
Page 74: Setting The Format
──────────────────────────────────────────────────── 4.3.4 Setting the Format ・The style can be set for showing input signals on the screen display and recording them on the printer. ・The styles single, dual, quad,（DISPLAY screen） , oct・hex（Print only, Display quad style）X-Y single・X-Y quad (dot) and (line) are available. ・The voltage per division is automatically changed according to the display format.
Page 75 ──────────────────────────────────────────────────── ■ In the cases of OCT and HEX (printer only), as far as the printer recording output is concerned, the waveforms for each channel are automatically distributed on each graph according to the table below: □ OCT □ HEX graph analog graph...
Page 76 ──────────────────────────────────────────────────── Single graph Dual graph (1) 1 画面 (1) 1 画面・Display and record as two graphs. (At Display and record as one graph. the most, 32 analog + 16 logic signals) (At the most, 32 analog + 32 logic ・Specify which input channel to use for signals) waveform graph display and recording.
Page 77: Setting The Display Size
──────────────────────────────────────────────────── 4.3.5 Setting the Display Size The display size can change the normal size or the wide size. Screen STATUS1 Method Method Press the STATUS key to call up the STATUS1 screen. display size Move the flashing cursor to the item, as shown in the figure on the left.
Page 78: Setting The Print Mode
──────────────────────────────────────────────────── 4.3.7 Setting the Print Mode Select the format, waveform, or numerical value should be used to output measured data and calculation results. Waveform：The smooth print function can be used, but print speed will decrease. Numerical value：The data spacing interval also must be set. Printing as a waveform Screen STATUS1...
Page 79 ──────────────────────────────────────────────────── Printing as numeric data Screen STATUS1 Method Method (1) Setting the Printer Format Press the STATUS key to call up the STATUS1 screen. print mode Move the flashing cursor to the item, as shown in the figure on the left. Use the function keys to select LOGGING.
Page 80: Setting The Roll Mode
──────────────────────────────────────────────────── 4.3.8 Setting the Roll Mode ・This mode can be used at a time axis range setting of 10 ms/DIV or slower. ・In normal recording, the waveform is displayed only after all data of the recording length have been captured. At low sampling speed settings, this will cause a considerable delay between the start of measurement and the appearance of the waveform on the display.
Page 81: Setting The Auto Print Function
──────────────────────────────────────────────────── 4.3.9 Setting the Auto Print Function When the function is enabled, printout is carried out automatically after a measurement data is captured. Screen STATUS1 Method Method Press the STATUS key to call up the STATUS1 screen. auto print Move the flashing cursor to the item, as shown in the figure on the left.
Page 82: Setting The Auto Save Function
──────────────────────────────────────────────────── 4.3.10 Setting the Auto Save Function ・When the function is enabled, measurement data are automatically stored on a floppy disk, PC card, MO disk or connected SCSI device after they are captured. ・The Auto Save function stores a file in the directory currently selected on the file screen.
Page 83 ：Data are stored as binary data. ：Data are stored as text data. Data stored in the text format is not readable by the 8826. When the data format to be saved is set to text data, the intermittent setting item is displayed.
Page 84: Setting The Overlay Function
──────────────────────────────────────────────────── 4.3.11 Setting the Overlay Function ・Overlay is performed without clearing the currently displayed waveform (if trigger mode is REPEAT or AUTO). This allows comparison to the immediately preceding waveform. ・If trigger mode is SINGLE, measurement terminates after one set of data has been collected.
Page 85: Setting The Averaging Function
──────────────────────────────────────────────────── 4.3.12 Setting the Averaging Function ・The averaging function allows capturing several instances of a waveform and determining the average. ・This makes it possible to eliminate noise and irregular signal components. ・The higher the number of averaging instances, the more effectively will noise be suppressed.
Page 86 ──────────────────────────────────────────────────── Averaging and trigger mode ■ Trigger mode: SINGLE (1) After the START key was pressed, data are captured whenever the trigger conditions are fulfilled, and summing averaging is carried out. (2) When the specified number of data has been captured, measurement stops automatically.
Page 87: Setting The Waveform Evaluation
──────────────────────────────────────────────────── 4.3.13 Setting the Waveform Evaluation ・The Waveform Evaluation function can be used Memory recorder function (single screen and X-Y single screen). ・GO (pass) or NG (fail) evaluation of the input signal waveform can be performed using an evaluation area specified by the user. ・This can serve to detect irregular waveforms.
Page 88: Using The X-Y Waveform Plots (Mem)
──────────────────────────────────────────────────── 4.4 Using the X-Y Waveform Plots (MEM) ・Setting the display format to X-Y in status screen allows X-Y waveforms to be combined. Any of channels 1 to 32 can be selected for each of the X and Y axis. Up to four X-Y plots can be made simultaneously. ・Voltage axis magnification/compression is active also when using X-Y combined plotting.
Page 89 ──────────────────────────────────────────────────── Screen STATUS1, CHANNEL1 Method Method (1) Setting the Format Press the STATUS key to call up the STATUS1 screen. format Move the flashing cursor to the item, as shown in the figure on the left. Use the function keys to select the "X-Y single or "X-Y quad"...
Page 90 ──────────────────────────────────────────────────── Partial X-Y plot Using the A/B cursors, it is possible to specify a range for partial X-Y plotting. (Normal X-Y plotting covers all data of the recording length.) Method Method Screen: DISPLAY (excluding X-Y1 and X-Y4) Display the captured waveform data, using a format other than X-Y1 and X-Y4.
Page 91: Settings On The Display Screen (Mem)
──────────────────────────────────────────────────── 4.5 Settings on the Display Screen (MEM) Explains the setting items on the Display screen. For details on setting, refer to Section 4.3. When want to use the JOG control, press the VALUE select key.（The selection window is not displayed.) （Zoom function）...
Page 92: Auto Range Function
──────────────────────────────────────────────────── 4.6 Auto Range Function This function automatically selects the time axis range, measurement range and zero position. Taking the lowest numbered channel among the channels for which waveform display is on, 1 to 2.5 cycles are automatically set to be recorded as 25 DIV. Method Screen DISPLAY...
Page 93: Other Screen Settings (Mem)
──────────────────────────────────────────────────── 4.7 Other Screen Settings (MEM) The status screen for the memory recorder function contains three more setup screens. For detailed setup procedures, see the associated sections. Screen The associated chapter and sections STATUS 2 Screen: Chapter 15 Memory Segmentation Function Memory Segmentation Screen STATUS 3 Screen: Section 16.1 Parameter Calculation...
Page 94: Start And Stop Operation (Mem)
【 End of measurement in REPEAT and AUTO trigger modes 】・When the STOP key is pressed once during measurement, the 8826 acquires measurement data in an amount corresponding to the set recording length, and the measurement is stopped. (Waveform display, auto printout, and auto save are executed.) ・When the set time-axis range is longer than 10 ms/DIV, waveforms...
Page 95: Chapter 5 Recorder Function
──────────────────────────────────────────────────── Chapter 5 Recorder Function ────────────────────────────────────────────────────...
Page 96: Outline Of The Recorder Function
──────────────────────────────────────────────────── 5.1 Outline of the Recorder Function The recorder function has the following features. (1) Real time display and printing of the input signal (2) Real time continuous recording of the input signal (3) All input channel data are recorded on the same time axis. Since data for all channels can be superimposed, the relative relationship between input signals can be observed visually.
Page 97 ──────────────────────────────────────────────────── (13) Reprint function The most recent 2000 (64 M words: 10000) divisions of the data stored in memory can be printed as many times as required. (14) Print Real-time print, manual print, partial print, report print, screen hard copy can be printed.
Page 98: Operation Sequence (Rec)
──────────────────────────────────────────────────── 5.2 Operation Sequence (REC) Preparation 測定の準備を行います Installation of the Unit Turn on the power ・See Chapter 2. Connect the inputs Setting the STATUS1 screen Setting the STATUS1 screen See Section 5.3.1. Select the function ・Select the recorder function. ・Press the STATUS key to call up the ime axis range See Section 5.3.2.
Page 99 ──────────────────────────────────────────────────── Setting the CHANNEL Screen Setting the CHANNEL Screen ・Set the waveform display color for each channel, measurement range, input coupling, zero position, and filter. See Chapter 9. Setting the TRIGGER Screen Setting the TRIGGER Screen ・Set the trigger source, trigger types and conditions, the pre- trigger, etc.
Page 100: Status Settings (Rec)
──────────────────────────────────────────────────── 5.3 STATUS Settings (REC) 5.3.1 Setting the Function Mode Screen STATUS, CHANNEL, DISPLAY Method Method Call up the STATUS, CHANNEL or DISPLAY screen. Move the flashing cursor to the position shown in the figure on the left. Press the F2 [ RECORDER ] Selection Selection...
Page 101: Setting The Time Axis Range
──────────────────────────────────────────────────── 5.3.2 Setting the Time Axis Range ・Set the speed for inputting and storing the waveform of the input signal. ・Time axis range setting expresses the time for 1 DIV. ・The sampling period is 1/100th of the set value for the time axis range. (100 samples/DIV) Screen STATUS, DISPLAY...
Page 102: Setting The Sampling Period
──────────────────────────────────────────────────── 5.3.3 Setting the Sampling Period The available range depends on the selected time axis range (input signal waveform capture rate). Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. sampling Move the flashing cursor to the item, shown in the figure on the left.
Page 103: Setting The Recording Length
──────────────────────────────────────────────────── 5.3.4 Setting the Recording Length ・The length of recording for one measurement operation (number of DIV) can be set. Select the recording length. SELECT： ARBITRARY： Any recording length can be selected by the user. Screen STATUS, DISPLAY Method-1 Method Fixed recording length mode Call up the STATUS or DISPLAY screen.
Page 104 ──────────────────────────────────────────────────── Screen STATUS, DISPLAY Method-2 Method Any recording length mode Call up the STATUS or DISPLAY screen. Move the flashing cursor to the shot item, as shown in the figure on the left. Select the ARBITRARY. Use the JOG control or the function keys to make the selection.
Page 105: Setting The Format
──────────────────────────────────────────────────── 5.3.5 Setting the Format ・The style can be set for showing input signals on the screen display and recording them on the printer. ・The styles single, dual, quad,（DISPLAY screen） , oct・hex（Print only, Display quad style）X-Y single・X-Y quad (dot) and (line) are available. ・The voltage per division is automatically changed according to the display format.
Page 106 ──────────────────────────────────────────────────── Single graph Dual graph (1) 1 画面 (1) 1 画面・Display and record as two graphs. (At Display and record as one graph. the most, 32 analog + 16 logic signals) (At the most, 32 analog + 32 logic ・Specify which input channel to use for signals) waveform graph display and recording.
Page 107: Setting The Display Size
──────────────────────────────────────────────────── 5.3.6 Setting the Display Size The display size can change the normal size or the wide size. Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. display size Move the flashing cursor to the item, as shown in the figure on the left.
Page 108: Setting The Print Mode
──────────────────────────────────────────────────── 5.3.7 Setting the Print Mode Select the format, waveform, or numerical value should be used to output measured data. The waveform is printed. Waveform： Numerical value： The data spacing interval also must be set. Printing as a waveform Screen STATUS Method Method...
Page 109 ──────────────────────────────────────────────────── Printing as numeric data Screen STATUS Method Method (1) Setting the Printer Format Press the STATUS key to call up the STATUS screen. print mode Move the flashing cursor to the item, as shown in the figure on the left Use the function keys to select LOGGING.
Page 110: Setting The Additional Recording Function
──────────────────────────────────────────────────── 5.3.8 Setting the Additional Recording Function ・This records, regarding the memory as though it were recording paper. ・Without expansion memory, the last 2000 (64 M words: 10000) divisions of waveform can be held in memory. ・The waveform can be scrolled and printed out. Switching the additional recording on and off affects the use of memory as shown below.
Page 111 ──────────────────────────────────────────────────── Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. Move the flashing cursor to the record add item, as shown in the figure on the left. Use the function keys to make the selection. Selection Selection ：Additional recording is disabled.
Page 112: Setting The Printer Function (Real Time Printing)
──────────────────────────────────────────────────── 5.3.9 Setting the Printer Function (Real Time Printing) The input waveform is continuously printed in real time. Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. printer Move the flashing cursor to the item, as shown in the figure on the left. Use the function keys to make the selection.
Page 113: Setting The Auto Save Function
──────────────────────────────────────────────────── 5.3.10 Setting the Auto Save Function ・When the function is enabled, measurement data are automatically stored on a floppy disk, PC card, MO disk or connected SCSI device after they are captured. ・The Auto Save function stores a file in the directory currently selected on the file screen.
Page 114 ：Data are stored as binary data. ：Data are stored as text data. Data stored in the text format is not readable by the 8826. When the data format to be saved is set to text data, the intermittent setting item is displayed.
Page 115: Setting The Interpolation (Dot-Line, X-Y Only)
──────────────────────────────────────────────────── 5.3.11 Setting the Interpolation (dot-line, X-Y only) ・Interpolation can be set when set the X-Y graph format. ・This setting determines whether the input waveform (sampling data) is to be displayed and printed as a series of dots or a line using linear interpolation.
Page 116: Using The X-Y Cont Recorder
──────────────────────────────────────────────────── 5.4 Using the X-Y CONT Recorder (1) The same operation as a normal recorder is available to plot between channels (real time X-Y recording). (2) Unlike an X-Y plot produced in the memory recorder function mode, the time axis information for each channel is not being recorded. (3) Any of channels 1 to 32 can be selected for each of the X and Y axis.
Page 117 ──────────────────────────────────────────────────── Setting the STATUS screen Setting the Format Method Method Press the STATUS key to call up the STATUS screen. Move the flashing cursor to the format item. Use the function keys to select the "X-Y single" or "X-Y quad" format. See Section 5.3.5.
Page 118 ──────────────────────────────────────────────────── Setting the CHANNEL screen Screen CHANNEL1 Method Method Press the CHAN key to call up the CHANNEL1 screen. Move the flashing cursor to desired channel, and use the function keys to set the waveform color (including displays waveform ON/OFF). Selection Selection ：Move the cursor up in the selection...
Page 119: Settings On The Display Screen (Rec)
──────────────────────────────────────────────────── 5.5 Settings on the Display Screen (REC) Explains the setting items on the Display screen. For details on setting, refer to Section 5.3. When want to use the JOG control, press the VALUE select key.（The selection window is not displayed.) MEM,REC,RMS,REC&MEM,FFT ･Select function.
Page 120: Start And Stop Operation (Rec)
──────────────────────────────────────────────────── 5.6 Start and Stop Operation (REC) Setting the 8826 ・See Section 5.3 STATUS settings Setting to the ８８２６・See Chapter 9 Input channel settings ･STATUS Settings ･STATUS Settings ・See Chapter 10 Trigger Functions ･Channel Settings ･Channel Settings ･Trigger Settings ･Trigger Settings ・Press the START key and LED light.
Page 121: Chapter 6 Rms Recorder Function
──────────────────────────────────────────────────── Chapter 6 RMS Recorder Function ────────────────────────────────────────────────────...
Page 122: Outline Of The Rms Recorder Function
(1) The voltage value and DC signal for the commercial power supplies are displayed and recorded as the rms value. (2) Real time continuous recording (3) The 8826 is designed to measure commercial power supplies (50/60 Hz) and DC signal. (4) RMS accuracy：±3%f.s.
Page 123 ──────────────────────────────────────────────────── (15) Print Real-time print, manual print, partial print, report print, screen hard copy can be printed. ──────────────────────────────────────────────────── 6.1 Outline of the RMS Recorder Function...
Page 124: Operation Sequence (Rms)
──────────────────────────────────────────────────── 6.2 Operation Sequence (RMS) Preparation 測定の準備を行います Installation of the Unit Turn on the power ・See Chapter 2. Connect the inputs Setting the STATUS1 screen Setting the STATUS1 screen Select the function See Section 6.3.1 ・Select the RMS recorder function. ・Press the STATUS key to call up the Time axis range See Section 6.3.2...
Page 125 ──────────────────────────────────────────────────── Setting the CHANNEL Screen Setting the CHANNEL Screen ・Set the waveform display color for each channel, measurement range, input coupling, zero position, and filter. See Chapter 9. Setting the TRIGGER Screen Setting the TRIGGER Screen ・Set the trigger source, trigger types and conditions, the pre- trigger, etc.
Page 126: Status Settings (Rms)
──────────────────────────────────────────────────── 6.3 STATUS Settings (RMS) 6.3.1 Setting the Function Mode Screen STATUS, CHANNEL, DISPLAY Method Method Call up the STATUS, CHANNEL or DISPLAY screen. Move the flashing cursor to the position shown in the figure on the left. Press the F3 [ RMS ] Selection Selection...
Page 127: Setting The Time Axis Range
──────────────────────────────────────────────────── 6.3.2 Setting the Time Axis Range ・Set the speed for inputting and storing the waveform of the input signal. ・Time axis range setting expresses the time for 1 DIV. ・The sampling interval is constant (200μs), regardless of the time axis range. Screen STATUS, DISPLAY Method-1...
Page 128: Setting The Recording Length
──────────────────────────────────────────────────── 6.3.4 Setting the Recording Length The length of recording for one measurement operation (number of DIV) can be set. Select the recording length. SELECT： ARBITRARY： Any recording length can be selected by the user. Screen STATUS, DISPLAY Method-1 Method Fixed recording length mode Call up the STATUS or DISPLAY screen.
Page 129 ──────────────────────────────────────────────────── Screen STATUS, DISPLAY Method-2 Method Any recording length mode Call up the STATUS or DISPLAY screen. Move the flashing cursor to the shot item, as shown in the figure on the left. Select the ARBITRARY. Use the JOG control or the function keys to make the selection.
Page 130: Setting The Format
──────────────────────────────────────────────────── 6.3.5 Setting the Format ・The style can be set for showing input signals on the screen display and recording them on the printer. ・The styles single, dual, quad,（DISPLAY screen） , oct and hex（Print only, Display quad style）are available. ・The voltage per division is automatically changed according to the display format.
Page 131 ──────────────────────────────────────────────────── Single graph Dual graph (1) 1 画面 (1) 1 画面・Display and record as two graphs. (At Display and record as one graph. the most, 32 analog + 16 logic signals) (At the most, 32 analog + 32 logic ・Specify which input channel to use for signals) waveform graph display and recording.
Page 132: Setting The Display Size
──────────────────────────────────────────────────── 6.3.6 Setting the Display Size The display size can change the normal size or the wide size. Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. display size Move the flashing cursor to the item, as shown in the figure on the left.
Page 133: Setting The Print Mode
──────────────────────────────────────────────────── 6.3.7 Setting the Print Mode Select the format, waveform, or numerical value should be used to output measured data. Waveform：The waveform is printed. Numerical value：The data spacing interval also must be set. Printing as a waveform Screen STATUS Method Method Setting the Printer Format Press the STATUS key to call up the...
Page 134 ──────────────────────────────────────────────────── Printing as numeric data Screen STATUS Method Method (1) Setting the Printer Format Press the STATUS key to call up the STATUS screen. print mode Move the flashing cursor to the item, as shown in the figure on the left. Use the function keys to select LOGGING.
Page 135: Setting The Additional Recording Function
──────────────────────────────────────────────────── 6.3.8 Setting the Additional Recording Function ・This records, regarding the memory as though it were recording paper. ・Without expansion memory, the last 2000 (64 M words: 10000) divisions of waveform can be held in memory. ・The waveform can be scrolled and printed out. Switching the additional recording on and off affects the use of memory as shown below.
Page 136 ──────────────────────────────────────────────────── Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. Move the flashing cursor to the record add item, as shown in the figure on the left. Use the function keys to make the selection. Selection Selection ：Additional recording is disabled.
Page 137: Setting The Printer Function (Real Time Printing)
──────────────────────────────────────────────────── 6.3.9 Setting the Printer Function (Real Time Printing) The input waveform is continuously printed in real time. Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. printer Move the flashing cursor to the item, as shown in the figure on the left. Use the function keys to make the selection.
Page 138: Setting The Auto Save Function
──────────────────────────────────────────────────── 6.3.10 Setting the Auto Save Function ・When the function is enabled, measurement data are automatically stored on a floppy disk, PC card, MO disk or connected SCSI device after they are captured. ・The Auto Save function stores a file in the directory currently selected on the file screen.
Page 139 ：Data are stored as binary data. ：Data are stored as text data. Data stored in the text format is not readable by the 8826. When the data format to be saved is set to text data, the intermittent setting item is displayed.
Page 140: Settings On The Display Screen (Rms)
──────────────────────────────────────────────────── 6.4 Settings on the Display Screen (RMS) Explains the setting items on the Display screen. For details on setting, refer to Section 6.3. When want to use the JOG control, press the VALUE select key.（The selection window is not displayed MEM,REC,RMS,REC&MEM,FFT ･Select function.
Page 141: Start And Stop Operation (Rms)
──────────────────────────────────────────────────── 6.5 Start and Stop Operation (RMS) Setting the 8826 ・See Section 6.3 STATUS settings Setting to the ８８２６・See Chapter 9 Input channel settings ･STATUS Settings ･STATUS Settings ・See Chapter 10 Trigger Functions ･Channel Settings ･Channel Settings ･Trigger Settings ･Trigger Settings ・Press the START key and LED light.
Page 142 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 6.5 Start and Stop Operation (RMS)
Page 143: Chapter 7 Recorder & Memory Function
──────────────────────────────────────────────────── Chapter 7 Recorder & Memory Function 7.1 Outline of the Recorder & Memory Function The Recorder & Memory function has the following features. (1) After being stored in the internal memory, input signal data can be displayed and printed. (2) All input channel data are recorded on the same time axis.
Page 144: Operation Sequence (Rec&Mem)
──────────────────────────────────────────────────── 7.2 Operation Sequence (REC&MEM) Preparation 測定の準備を行います Installation of the Unit Turn on the power ・See Chapter 2. Connect the inputs Setting the STATUS1 screen Setting the STATUS1 screen Select the function See Section 7.3.1 ・Select the recorder function. ・Press the STATUS key to call up the Time axis range See Section 7.3.2 STATUS screen.
Page 145 ──────────────────────────────────────────────────── Setting the STATUS2 Screen Setting the STATUS2 Screen Sequential Save Function ・Press the STATUS key to call up the STATUS screen. ・See Section 7.4. ・This function divides the memory into separate blocks, each of which can be used for waveform recording. Setting the CHANNEL Screen Setting the CHANNEL Screen ・Set the waveform display color for each channel,...
Page 146: Status1 Settings (Rec&Mem)
──────────────────────────────────────────────────── 7.3 STATUS1 Settings (REC&MEM) 7.3.1 Setting the Function Mode Screen STATUS, CHANNEL, DISPLAY Method Method Call up the STATUS, CHANNEL or DISPLAY screen. Move the flashing cursor to the position shown in the figure on the left. Press the F4 [ REC&MEM ] Selection Selection...
Page 147: Setting The Time Axis Range
──────────────────────────────────────────────────── 7.3.2 Setting the Time Axis Range ・Set the speed for inputting and storing the waveform of the input signal. ・Time axis range setting expresses the time for 1 DIV. ・The sampling period is 1/100th of the set value for the time axis range. (100 samples/DIV) (See Section 21.3) ・Recorder sampling is performed using the sampling period set by the memory recorder function.
Page 148: Setting The Recording Length
──────────────────────────────────────────────────── 7.3.3 Setting the Recording Length ・For both recorder and memory recorder functions, the length of recording for one measurement operation (number of DIV) can be set. ・Two types of recording length can be set. SELECT： Select the recording length. ARBITRARY：...
Page 149 ──────────────────────────────────────────────────── Screen STATUS, DISPLAY Method-2 Method Any recording length mode Call up the STATUS or DISPLAY screen. Move the flashing cursor to the shot item, as shown in the figure on the left. Select the ARBITRARY. Use the JOG control or the function keys to make the selection.
Page 150: Setting The Display Function
──────────────────────────────────────────────────── 7.3.4 Setting the Display function ・Select the waveform function to be used for display. ・During measurement, the display shows the recorder waveform. ・Function switching is used with display screen settings and displayed waveforms. Screen STATUS Method Method Press the STATUS key to call up the STATUS screen.
Page 151: Setting The Display Size
──────────────────────────────────────────────────── 7.3.5 Setting the Display Size The display size can change the normal size or the wide size. Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. display size Move the flashing cursor to the item, as shown in the figure on the left.
Page 152: Setting The Format
──────────────────────────────────────────────────── 7.3.6 Setting the Format ・The style can be set for showing input signals on the screen display and recording them on the printer. ・The styles single, dual, quad,（DISPLAY screen） , oct・hex（Print only, Display quad style）are available. ・The voltage per division is automatically changed according to the display format.
Page 153: Setting The Print Mode
──────────────────────────────────────────────────── 7.3.7 Setting the Print Mode Select the format, waveform, or numerical value should be used to output measured data. The waveform is printed. Waveform： Numerical value： The data spacing interval also must be set. Printing as a waveform Screen STATUS1 Method Method...
Page 154 ──────────────────────────────────────────────────── Printing as numeric data Screen STATUS Method Method (1) Setting the Printer Format Press the STATUS key to call up the STATUS screen. print mode Move the flashing cursor to the item, as shown in the figure on the left Use the function keys to select LOGGING.
Page 155: Setting The Additional Recording Function
──────────────────────────────────────────────────── 7.3.8 Setting the Additional Recording Function ・This records, regarding the memory as though it were recording paper. ・Without expansion memory, the last 1000 (64 M words: 5000) divisions of waveform can be held in memory. ・The waveform can be scrolled and printed out. Switching the additional recording on and off affects the use of memory as shown below.
Page 156 ──────────────────────────────────────────────────── Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. Move the flashing cursor to the record add item, as shown in the figure on the left. Use the function keys to make the selection. Selection Selection ：Additional recording is disabled.
Page 157: Setting The Printer Function (Real Time Printing)
──────────────────────────────────────────────────── 7.3.9 Setting the Printer Function (Real Time Printing) The input waveform (REC) is continuously printed in real time. Screen STATUS Method Method Press the STATUS key to call up the STATUS screen. printer Move the flashing cursor to the item, as shown in the figure on the left.
Page 158: Setting The Auto Save Function
──────────────────────────────────────────────────── 7.3.10 Setting the Auto Save Function ・When the function is enabled, measurement data are automatically stored on a floppy disk, PC card, MO disk or connected SCSI device after they are captured. ・The Auto Save function stores a file in the directory currently selected on the file screen.
Page 159 ：Data are stored as binary data. ：Data are stored as text data. Data stored in the text format is not readable by the 8826. When the data format to be saved is set to text data, the intermittent setting item is displayed.
Page 160 ──────────────────────────────────────────────────── ・Auto saving is set to "RECORDER, MEMORY DATA," and batch saving is NOTE executed (an index file is created). When either option (i.e., RECORDER or MEMORY DATA) is selected, individual saving is executed. ・When auto-save is enabled, the storage channel cannot be selected. Data for the channel for which the waveform is displayed is saved.
Page 161: Setting The Real-Time Save
──────────────────────────────────────────────────── 7.3.11 Setting the Real-Time Save Data can be saved to memory in real time, and afterwards compressed and stored on disk. Real-time save data is stored in binary format on the PC card or internal MO drive. Trigger settings are not applicable to the memory waveform, and the start of Memory waveform recording coincides with the start of the Recorder waveform.
Page 162 ──────────────────────────────────────────────────── Move the blinking cursor to "Memory Recording Length", and select using the jog control or function keys. Selection Selection ：Move the cursor up in the selection window. ：Move the cursor down in the selection window. ・The sampling cycle of the recorder is the same as that set for the memory, NOTE so depending on the sampling cycle, there are some time axes that cannot be set for the recorder.
Page 163 ──────────────────────────────────────────────────── ■Maximum Recording Time The maximum settable recording time is determined by the space available on the PC card or MO disk, the MEM and REC time axes and the selected recording length. However, the maximum REC recording length is limited to 1000 DIV (5000 with expanded memory), so the recording time cannot be set beyond this limit regardless of space available on the PC card or MO disk.
Page 164 ──────────────────────────────────────────────────── ■Loading Real-Time Save Data To load data saved by Real-Time Save, load the index file (R_M). Data loaded by the index file consists of all recorder waveforms and the header (2000 DIV) of the memory waveform. Loading of the memory waveform is specified by use of the A-B cursors within the recorder waveform.
Page 165 ──────────────────────────────────────────────────── ■Loading Memory Waveforms The memory waveform is specified by use of the A-B cursors within the recorder waveform. Screen STATUS2 Method Method Flashing cursor Press the DISP key to display the DISPLAY screen. Move the blinking cursor to the location indicated in the figure.
Page 166: Status2 Settings (Rec&Mem)
──────────────────────────────────────────────────── 7.4 STATUS2 Settings (REC&MEM) 7.4.1 Using the Sequential Save Function This function divides the memory into separate blocks, each of which can be used for waveform recording. Refer to Section 15.1 for details. Screen STATUS2 Method Method Press the STATUS key to call up the STATUS2 screen.
Page 167: Settings On The Display Screen (Rec&Mem)
──────────────────────────────────────────────────── 7.5 Settings on the Display Screen (REC&MEM) Explains the setting items on the Display screen. For details on setting, refer to Section 7.3. When want to use the JOG control, press the VALUE select key.（The selection window is not displayed.) Upon pressing the "Recorder &...
Page 168: Start And Stop Operation (Rec&Mem)
──────────────────────────────────────────────────── 7.6 Start and Stop Operation (REC&MEM) Setting the 8826 ・See Section 7.3 STATUS settings Setting to the ８８２６・See Chapter 9 Input channel settings ･STATUS Settings ･STATUS Settings ・See Chapter 10 Trigger Functions ･Channel Settings ･Channel Settings ･Trigger Settings ･Trigger Settings ・Press the START key and LED light.
Page 169: Chapter 8 Fft Function
──────────────────────────────────────────────────── Chapter 8 FFT Function 8.1 Outline of the FFT Function (1) FFT (Fast Fourier Transform) processing can be performed on input signal data for frequency analysis. (2) Frequency range 133 mHz to 400 kHz (3) Frequency resolution 1/400, 1/800, 1/2000, 1/4000 of frequency range (4) 12 types of analysis functions Storage waveform, linear spectrum, RMS spectrum, power spectrum, auto- correlation function, histogram, transfer function, cross-power spectrum, cross-...
Page 170: Operation Sequence (Fft)
──────────────────────────────────────────────────── 8.2 Operation Sequence (FFT) Preparation 測定の準備を行います Installation of the Unit Turn on the power ・See Chapter 2. Connect the inputs STATUS1 screen Setting the STATUS1 screen Setting the Select the function See Section 8.3.1 ・Select the FFT function. ・Press the STATUS key to call up the FFT mode See Section 8.3.2 STATUS1 screen.
Page 171 ──────────────────────────────────────────────────── Setting the CHANNEL Screen Setting the CHANNEL Screen ・Set the waveform display color for each channel, measurement range, input coupling, zero position, and filter. See Chapter 9. Setting the TRIGGER Screen Setting the TRIGGER Screen ・Set the trigger source, trigger types and conditions, the pre- trigger, etc.
Page 172: Status1 Settings (Fft)
──────────────────────────────────────────────────── 8.3 STATUS1 Settings (FFT) 8.3.1 Setting the Function Mode Method Method Screen STATUS1, CHANNEL, DISPLAY Call up the STATUS1, CHANNEL or DISPLAY screen. Move the flashing cursor to the position shown in the figure on the left. Press the F5 [ FFT ] Selection Selection...
Page 173: Setting The Fft Channel Mode
──────────────────────────────────────────────────── 8.3.2 Setting the FFT Channel Mode ・This setting determines whether only one channel (1ch-FFT) or two channels (2ch-FFT) are used for FFT processing. ・When "1ch-FFT" is selected, certain FFT analysis modes will not be available. Screen STATUS1 Method Method Press the STATUS key to call up the STATUS1 screen.
Page 174: Setting The Frequency Range
──────────────────────────────────────────────────── 8.3.3 Setting the Frequency Range ・The frequency range (frequency axis maximum value) can be set as follows. ・The frequency range corresponds to the time axis range (TIME/DIV) setting of the memory function. Screen STATUS1, DISPLAY Method Method Call up the STATUS1 or DISPLAY screen. frequency Move the flashing cursor to the range...
Page 175: Setting The Sampling Point
──────────────────────────────────────────────────── 8.3.4 Setting the Sampling Point When the number of points is increased, the frequency resolution is also increased but the operation time is prolonged. Screen STATUS1 Method Method Press the STATUS key to call up the STATUS1 screen. sampling Move the flashing cursor to the point item, shown in the figure on the left.
Page 176: Setting The Window Processing
──────────────────────────────────────────────────── 8.3.5 Setting the Window Processing ・The window function defines the segment of the input signal that will be processed. ・Window processing can be used to minimize leakage error. Screen STATUS1 Method Method Press the STATUS key to call up the STATUS1 screen.
Page 177: Setting The Format
──────────────────────────────────────────────────── 8.3.6 Setting the Format ・You can set the format for displaying input signal waveforms on the screen and recording them on the printer. ・The SINGLE, DUAL, and NYQUIST formats are available. Screen STATUS1 Method Method Press the STATUS key to call up the STATUS1 screen.
Page 178 ──────────────────────────────────────────────────── Single graph Dual graph (1) 1 画面 (1) 1 画面 Displays the waveform on a single screen. Divides the waveform display screen into upper and lower screens. Nyquist graph （3） (1) 1 画面 For the linear spectrum, cross power spectrum, and transfer function, displays the real-number portion of the data for the FFT calculation result on the X-axis,...
Page 179: Selecting Reference Data
──────────────────────────────────────────────────── 8.3.7 Selecting Reference Data Select data to be used for FFT processing. Screen STATUS1 Method Method Press the STATUS key to call up the STATUS1 screen. reference Move the flashing cursor to the item, shown in the figure on the left. Use the function keys to make the selection.
Page 180: Setting The Fft Analysis Mode
──────────────────────────────────────────────────── 8.3.8 Setting the FFT Analysis Mode Used to select the FFT calculation method. Screen STATUS1, DISPLAY Method Method Call up the STATUS1 or DISPLAY screen. FFT mode Move the flashing cursor to the item, shown in the figure on the left. Use the function keys to make the selection.
Page 181: Setting The X-Axis And Y-Axis Displays
──────────────────────────────────────────────────── 8.3.10 Setting the X-axis and Y-axis Displays ・Set the X and Y axis for display of FFT calculation results. ・Different units can be selected for the X and Y axis. ・With some FFT analysis modes, one of the axis cannot be set. Screen STATUS1, DISPLAY Method...
Page 182 ──────────────────────────────────────────────────── X and Y Axis Settings Available with each FFT Analysis Mode X-axis Y-axis FFT analysis mode (horizontal axis) (vertical axis) Storage Waveform (Time) (Linear) LIN-REAL LIN-IMAG LIN-Hz Linear Spectrum LIN-MAG LOG-Hz LOG-MAG PHASE LIN-REAL LIN-IMAG LIN-Hz RMS Spectrum LIN-MAG LOG-Hz LOG-MAG PHASE...
Page 183: Setting The Display Scale
──────────────────────────────────────────────────── 8.3.11 Setting the Display Scale The display scale for showing the FFT processing result can either be set manually or automatically. Screen STATUS1 Method Method Press the STATUS key to call up the STATUS1 screen. scale Move the flashing cursor to the item, shown in the figure on the left.
Page 184 ──────────────────────────────────────────────────── ・Entering the number with CH&NUM key, see Section 9.6.1. NOTE ・When the scaling function is enabled for a channel, the unit selected for the channel is displayed. ・The X-axis setting for the histogram can be changed on the Waveform display screen or the CHANNEL1 screen.
Page 185: Octave Filter Setting
──────────────────────────────────────────────────── 8.3.12 Octave Filter Setting When octave analysis has been selected, two different filter types can be chosen. The characteristics of both filter types are within ANSI CLASS 3 tolerance limits. (1/3-octave only) Screen STATUS1 Method Method When the octave analysis is selected in analysis mode, the oct-filter item is shown.
Page 186: Status2 Settings (Fft)
──────────────────────────────────────────────────── 8.4 STATUS2 Settings (FFT) 8.4.1 Setting the Averaging Function ・The averaging function allows capturing several instances of a waveform and determining the average. ・This makes it possible to eliminate noise and irregular signal components. ・The higher the number of averaging instances, the more effectively will noise be suppressed.
Page 187 ──────────────────────────────────────────────────── ■ Time axis waveform averaging After the START key was pressed, data are captured whenever the trigger conditions are fulfilled. After averaging, FFT processing is performed and the result is displayed. Trigger mode: AUTO and AUTO STOP When the START key is pressed, data are captured even if trigger conditions are not fulfilled after a certain interval.
Page 188 ──────────────────────────────────────────────────── FFT analysis mode and averaging Symbols in the table have the following meaning Setting is valid −: Setting is invalid (has no effect) Time axis Frequency axis FFT analysis mode Y-axis Peak hold averaging averaging Storage waveform (Linear) − Linear spectrum LIN-REAL −...
Page 189 ──────────────────────────────────────────────────── Averaging and trigger mode (FFT) (1) Trigger mode: SINGLE 1. After the START key was pressed, data are captured whenever the trigger conditions are fulfilled, averaging is carried out, and then the waveform is displayed. Collected waveform data is averaged with the FFT time axis waveform and FFT processing is performed.
Page 190 ──────────────────────────────────────────────────── (3) Trigger mode: AUTO (Time axis waveform) When the START key is pressed, data are captured even if trigger conditions are not fulfilled after a certain interval. If averaging is applied to unsynchronized input signals, the result will be meaningless. (Frequency axis waveform) 1.
Page 191: Setting The Interpolation
──────────────────────────────────────────────────── 8.4.2 Setting the Interpolation The input signal (sampled data) and FFT waveform can be displayed and recorded as is, or after linear interpolation. Screen STATUS2 Method Method Press the STATUS key to call up the STATUS2 screen. dot-line Move the flashing cursor to the item, shown in the figure on the left.
Page 192: Setting The Print Mode
──────────────────────────────────────────────────── 8.4.3 Setting the Print Mode Select the format, waveform, or numerical value should be used to output measured data and calculation results. Screen STATUS2 Method Method (1) Setting the Printer Format Press the STATUS key to call up the STATUS2 screen.
Page 193: Setting The Auto Print Function
──────────────────────────────────────────────────── 8.4.4 Setting the Auto Print Function When the function is enabled, printout is carried out automatically after a measurement data is captured. Screen STATUS2 Method Method Press the STATUS key to call up the STATUS2 screen. auto print Move the flashing cursor to the item, as shown in the figure on the left.
Page 194: Setting The Auto Save Function
──────────────────────────────────────────────────── 8.4.5 Setting the Auto Save Function ・When the function is enabled, measurement data are automatically stored on a floppy disk, PC card, MO disk or connected SCSI device after they are captured. ・The Auto Save function stores a file in the directory currently selected on the file screen.
Page 195 ：Data are stored as binary data. ：Data are stored as text data. Data stored in the text format is not readable by the 8826. Set the file name. For the input method, refer to Section 9.8.4. When using auto-save, a number is appended to the name you specify as the file name.
Page 196: Setting The Waveform Evaluation
──────────────────────────────────────────────────── 8.4.6 Setting the Waveform Evaluation ・The Waveform Evaluation function can be used single screen and Nyquist screen. ・GO (pass) or NG (fail) evaluation of the input signal waveform can be performed using an evaluation area specified by the user. ・This can serve to detect irregular waveforms.
Page 197: Settings On The Display Screen (Fft)
──────────────────────────────────────────────────── 8.5 Settings on the Display Screen (FFT) Explains the setting items on the Display screen. For details on setting, refer to Section 8.3 and 8.4. When want to use the JOG control, press the VALUE select key.（The selection window is not displayed.) FFT Channel Mode ・1ch or 2ch...
Page 198: Start And Stop Operation (Fft)
・When roll mode is set to ON, the waveform is displayed (scrolling) immediately at the start of recording ・・When the STOP key is pressed twice during measurement, the 8826 is forcibly stopped.(Auto printout and auto save are not executed.) Measurement end Measurement end ・Waveform displays after data corresponding to samping point have...
Page 199: Analysis Function
──────────────────────────────────────────────────── 8.7 Analysis Function 8.7.1 Storage Waveform [STR] Displays the time domain waveform of the input signal. Displays the time domain waveform of the input signal. Function Horizontal Time Time axis display cursor Indicates the value of the specified TIME/DIV frequency range. (Refer to the table of the frequency range and time axis in Section 8.3.3.) Vertical...
Page 200: Linear Spectrum [Lin]
──────────────────────────────────────────────────── 8.7.2 Linear Spectrum [LIN] The frequency domain waveform of the input signal, including magnitude and phase information. Major applications include: ・Determining the peaks of waveform frequency components ・Determining the levels of high and low harmonics Function Fa = (fa) = |Fa|exp(jθa) = |Fa|(cos ∠θa + jsin ∠θa) LIN-Hz...
Page 201 ──────────────────────────────────────────────────── Examples Linear spectra waveforms Stored waveform Y-axis: LIN-REAL (X-axis: LOG-Hz) Y-axis: LIN-IMAG (X-axis: LOG-Hz) Y-axis: LIN-MAG (X-axis: LOG-Hz) Y-axis: LOG-MAG (X-axis: LOG-Hz) Y-axis: PHASE (X-axis: LOG-Hz) Nyquist ──────────────────────────────────────────────────── 8.7 Analysis Function...
Page 202: Rms Spectrum [Rms]
──────────────────────────────────────────────────── 8.7.3 RMS Spectrum [RMS] Displays the frequency domain waveform of the input signal, including magnitude (effective value) and phase information. Major applications include: ・Determining the peaks of waveform frequency components. ・Determining the effective values of frequency components. Function Ra = DC components: Ra = Fa = |Ra|exp(jθa) = |Ra|(cos ∠θa + jsin ∠θa)
Page 203 ──────────────────────────────────────────────────── 08-23, 30, 31, 32, 33, 34 Example RMS spectra waveform Stored waveform Y-axis: LIN-REAL (X-axis: LOG-Hz) Y-axis: LIN-IMAG (X-axis: LOG-Hz) Y-axis: LIN-MAG (X-axis: LOG-Hz) Y-axis: LOG-MAG (X-axis: LOG-Hz) Y-axis: PHASE (X-axis: LOG-Hz) ──────────────────────────────────────────────────── 8.7 Analysis Function...
Page 204: Power Spectrum [Psp]
──────────────────────────────────────────────────── 8.7.4 Power Spectrum [PSP] Displays the energy spectrum of the input signal, consisting of only magnitude information. Major applications include: ・Determining the peaks of waveform frequency components ・Determining the energy levels of high and low harmonics Function Fa*：complex conjugate of Fa Gaa = Fa* ･...
Page 205 ──────────────────────────────────────────────────── Example Power spectra waveforms Stored waveform Y-axis: LIN-MAG (X-axis: LOG-Hz) Y-axis: LOG-MAG (X-axis: LOG-Hz) Overall value The overall value is obtained by taking the square root of the total of power spectra for all frequencies. (Overall value) PSPo DC component PSPi ith AC component Compensation is applied to data for 1000 points captured before starting FFT...
Page 206: Auto Correlation [Acr]
──────────────────────────────────────────────────── 8.7.5 Auto Correlation [ACR] Displays the degree of similarity between two points in the input signal separated by time difference (τ). Major applications: ・Detecting a periodic signal contained in a noisy signal with an improvement in signal-to-noise ratio. ・Checking the periodic signal components contained in a noisy waveform, and periodic noise.
Page 207: Histogram [His]
──────────────────────────────────────────────────── 8.7.6 Histogram [HIS] Displays the frequencies of the magnitudes of sampled points. Major applications include: ・Determining waveform imbalance ・Determining whether a waveform is artificial or natural from the waveform distribution (most natural waveforms are regular sine waves). Function Volt Linear display of the measurement range of the input unit.
Page 208: Transfer Function [Trf]
──────────────────────────────────────────────────── 8.7.7 Transfer Function [TRF] Displays the transfer function (frequency characteristics) of the system being measured calculated from input and output signals. Nyquist diagrams can also be displayed, including magnitude and phase information. Major applications include: ・Determining filter frequency characteristics. ・Determining feedback control system stability through Nyquist diagrams.
Page 209 ──────────────────────────────────────────────────── 8-40, 41, 42, 43, 44, 45, 46, 47 Example Transfer function spectra waveform Stored waveform (input signal) Stored waveform (output signal) Y-axis: LIN-REAL (X-axis: LOG-Hz) Y-axis: LIN-IMAG (X-axis: LOG-Hz) Y-axis: LIN-MAG (X-axis: LOG-Hz) Y-axis: LOG-MAG (X-axis: LOG-Hz) Y-axis: PHASE (X-axis: LOG-Hz) Nyquist ────────────────────────────────────────────────────...
Page 210: Cross Power Spectrum [Csp]
──────────────────────────────────────────────────── 8.7.8 Cross Power Spectrum [CSP] Displays the product of the spectra of two input signals. The magnitude and phase information of the frequency components that are common to both signals can be displayed. Major applications: Obtaining frequency components common to two signals. Function Gab = Fa*･Fb...
Page 211 ──────────────────────────────────────────────────── Example Cross power spectra waveforms Stored waveform 1 Stored waveform 2 Y-axis: LIN-REAL (X-axis: LOG-Hz) Y-axis: LIN-IMAG (X-axis: LOG-Hz) Y-axis: LIN-MAG (X-axis: LOG-Hz) Y-axis: LOG-MAG (X-axis: LOG-Hz) Y-axis: PHASE (X-axis: LOG-Hz) Nyquist ──────────────────────────────────────────────────── 8.7 Analysis Function...
Page 212: Cross Correlation [Ccr]
──────────────────────────────────────────────────── 8.7.9 Cross Correlation [CCR] Displays the degree of similarity between two points separated by a time difference (τ) on two signals. The degree of similarity is expressed as a function of the time difference (τ). Major applications: ・Obtaining the phase difference between two signals in time units. ・Obtaining a speed or distance by measuring the time delay.
Page 213: Unit Impulse Response [Imp]
──────────────────────────────────────────────────── 8.7.10 Unit Impulse Response [IMP] Displays the frequency response of a system in the time domain. A response waveform equivalent to the unit impulse function is obtained by analyzing the input and output signals of the system being measured. Major applications Checking circuit time constants.
Page 214: Coherence [Coh]
──────────────────────────────────────────────────── 8.7.11 Coherence [COH] Displays the output signal component that is coherent (interference possible) to the input signal, yielding a value from 0 to 1. Major applications include: ・Evaluation of transfer functions. ・Determining the contribution of individual input lines to the output of multi- input systems.
Page 215 ──────────────────────────────────────────────────── Example Coherence function waveforms Stored waveform (input signal) Stored waveform (output signal) Coherence ──────────────────────────────────────────────────── 8.7 Analysis Function...
Page 216: Octave Analysis [Oct]
・In analog octave analysis, the octave band center frequencies and filter characteristics are determined according to the ANSI CLASS 3 standard. In the 8826, the power spectrum is measured first and bundling is then used to perform 1/1-octave or 1/3-octave analysis. This allows the following analysis...
Page 217 ──────────────────────────────────────────────────── ・5-band 1/1-octave analysis In this mode, the 400 spectrum lines of regular frequency analysis are bundled into 1/1 octave bands and shown as a bar graph. Example Octave analysis waveforms Stored waveform 1/1 octave analysis 1/3 octave analysis ──────────────────────────────────────────────────── 8.7 Analysis Function...
Page 218 ──────────────────────────────────────────────────── Frequency ranges and measurable range widths (0: 1/3 OCT, X: 1/1 OCT) Center frequency 1.33 20k 40k 80k 200k 400k (Hz) ○ △ 6.3 m △ ○△ ○ 10 m △ △ △ △ 12.5 m ○△ ○△ ○ 16 m △...
Page 219: Chapter 9 Input Channel Settings
──────────────────────────────────────────────────── Chapter 9 Input Channel Settings 9.1 Setting Items for Input Channel Screen Display Status System Channel Setting items ● ●* − − Waveform Display Color Measurement Range ●* ●* − − ●* ● − − Input Coupling Magnification/Compression Ratio ●...
Page 220: Input Channel Setting Procedure
──────────────────────────────────────────────────── 9.2 Input Channel Setting Procedure STATUS Screen STATUS Screen Function REC&MEM Format Single Dual Quad ・For details on STATUS screen, refer to each function. X-Y Single X-Y Quad （MEM&REC only） CHANNEL1 Screen 入力チャネルの設定を行います Setting the Waveform Display Color See Section 9.3.1. Setting the Waveform Display Graph Position See Section 9.3.2.
Page 221 ──────────────────────────────────────────────────── CHANNEL2 Screen 入力チャネルの設定を行います (Advanced function) ・The variable function allows the user to modify the waveform position Variable Function and size. For details on variable function, refer to Section 9.6.1. SYSTEM Screen 入力チャネルの設定を行います (Advanced function) SYSTEM2：SCALING ・The scaling function can be used to convert an output voltage from a sensor or similar into a physical quantity.
Page 222: Setting The Channel1 Screen
──────────────────────────────────────────────────── 9.3 Setting the CHANNEL1 Screen Indicates the CHANNEL screen organization. Press the CHAN key to call up the CHANNEL screen. CHANNEL1 screen CHANNEL1 screen Press the CH.SET key. Press the CH.SET key. Setting the Setting the Setting the analog channel analog channel logic channel 1 to 16 ch...
Page 223: Setting The Waveform Display Color
──────────────────────────────────────────────────── 9.3.1 Setting the Waveform Display Color Set the display color for the waveform. Screen CHANNEL1, DISPLAY Method Method Call up the CHANNEL1 or DISPLAY screen. Press the CH.SET key to call the desired Flashing cursor channel screen. Move the flashing cursor to the position shown in the figure on the left.
Page 224: Setting The Waveform Display Graph Position
──────────────────────────────────────────────────── 9.3.2 Setting the Waveform Display Graph Position Set which graph type to use when display format has been set to DUAL, QUAD, OCT or HEX screen display on the STATUS screen. Method Screen: CHANNEL1, DISPLAY Method Call up the CHANNEL1 or DISPLAY screen.
Page 225: Setting The Measurement Range
──────────────────────────────────────────────────── 9.3.3 Setting the Measurement Range ・The measurement range for each channel is set. ・The set value denotes the voltage value for 1 DIV along the measurement range (vertically). Method Screen: CHANNEL1, DISPLAY Method Call up the CHANNEL1 or DISPLAY screen.
Page 226: Setting The Input Coupling
──────────────────────────────────────────────────── 9.3.4 Setting the Input Coupling The input coupling for the input signal is set. Method Screen: CHANNEL1, DISPLAY Method Call up the CHANNEL1 or DISPLAY screen. Use the key to display the desired CH.SET Flashing cursor channel screen. Move the flashing cursor to the position shown in the figure on the left.
Page 227: Setting The Magnification/Compression Ratio Along The Voltage Axis
──────────────────────────────────────────────────── 9.3.5 Setting the Magnification/Compression Ratio Along the Voltage Axis ・Specifies the magnification/compression ratio for each channel to be used for display and recording. ・Performs magnification/compression using the center of the screen as reference. Method Screen: CHANNEL1, DISPLAY Method Call up the CHANNEL1 or DISPLAY screen.
Page 228: Setting The Zero Position
──────────────────────────────────────────────────── 9.3.6 Setting the Zero Position The position of the zero voltage is set. Method Screen: CHANNEL1, DISPLAY Method Call up the CHANNEL1 or DISPLAY screen. Use the key to display the desired Flashing cursor CH.SET channel screen. Move the flashing cursor to the position shown in the figure on the left.
Page 229 ──────────────────────────────────────────────────── Reference ・The zero positions are shown in the figure below. ・It is possible to display the hidden portion of the waveform by setting "0 V" to a proper percentage on the display. RMS recorder function 4095 2047 Displayed screen (zero position: 0%) Displayed screen 100%...
Page 230: Setting The Low-Pass Filter
──────────────────────────────────────────────────── 9.3.7 Setting the Low-Pass Filter ・Low-pass filters internal to the input units are set. ・Effective for removing unneeded high-frequency components. Method Screen: CHANNEL1, DISPLAY Method Call up the CHANNEL1 or DISPLAY screen. Use the key to display the desired CH.SET Flashing cursor channel screen.
Page 231: Setting The Logic Inputs
──────────────────────────────────────────────────── 9.3.8 Setting the Logic Inputs ・Select the display positions for CHA - CHH (1 probe). ・Select the display color for the logic waveform. Method Screen: CHANNEL1, DISPLAY Method Call up the CHANNEL1 or DISPLAYscreen. Use the key to display the logic CH.SET Flashing cursor channel screen.
Page 232 ──────────────────────────────────────────────────── Move the flashing cursor to the "1, 2, 3, 4" item of the channel for which the display color is to be set, as shown in the figure on the left. Use the the function keys to make the Flashing cursor selection.
Page 233: Copying Channel Settings
──────────────────────────────────────────────────── 9.4 Copying Channel Settings Copies any of input channel settings (voltage axis range, input coupling, and low-pass filter), variable function settings, scaling function settings, or comment function settings to another channel. Copying is not possible if the copy source and destination are different, or if the measurement mode is different when copying from and to the same unit.
Page 234: Zero Setting
──────────────────────────────────────────────────── 9.5 Zero Setting 9.5.1 Zero Adjustment ・This function calibrates the 0 V position (ground position) to the selected zero position. Use it to assure precise results. ・Allow the unit to warm up for at least 30 minutes to ensure that the internal temperature of the input units has stabilized.
Page 235: Zero Offset
──────────────────────────────────────────────────── 9.5.2 Zero Offset This function offsets the input voltage measurement to 0 V to compensate for an actual non-zero input voltage. If the actual input voltage exceeds ±10 DIVs, zero offset cannot be performed. This function is for the voltage and current measurement only.
Page 236 ──────────────────────────────────────────────────── ■Input Voltage During Zero Offset To set the zero offset, the input voltage must be stable. Otherwise, the zero offset depends on the timing of the zero offset setting. With Fixed Input Voltage With Variable Input Voltage With Fixed Input Voltage With Variable Input Voltage is set to 0V regardless of timing.
Page 237 ──────────────────────────────────────────────────── ■How to determine the zero offset Channel screen Shows that the zero offset is enabled. Display screen Shows that the zero offset is enabled. ──────────────────────────────────────────────────── 9.5 Zero Setting...
Page 238: Setting The Channel2 Screen
──────────────────────────────────────────────────── 9.6 Setting the CHANNEL2 Screen 9.6.1 Setting the Variable Function ・The variable function allows the user to modify the waveform position and size. ・The variable screen serves for setting the lower and upper limit of the waveform display range. ・The allowable waveform display range between the upper and lower limits is 10000 times larger or smaller the currently set range.
Page 239 ──────────────────────────────────────────────────── Method Screen: CHANNEL2, DISPLAY Method Call up the CHANNEL2 or DISPLAY screen. Use the CH.SET key to display the desired Flashing cursor channel screen. Use the cursor key to move the flashing cursor to the desired channel. Use the function keys to make the selection.
Page 240 ──────────────────────────────────────────────────── Method-2 Screen: CHANNEL2 Method Using the CH&NUM key Move the flashing cursor to the desired Flashing cursor channel. Move the flashing cursor to the lower or upper limit. Use the function key to select the TEN-KEY INPUT. Selection Selection ：Value down ：Value up ：Reset.
Page 241: Scaling Function (System2)
──────────────────────────────────────────────────── 9.7 Scaling Function (SYSTEM2) ・The scaling function can be used to convert an output voltage from a sensor or similar into a physical quantity. ・The gauge scale (maximum and minimum values of horizontal axis) and A/B cursor measurement values are displayed in the scaled units. ・Scaling can be performed for every channel.
Page 242: Setting The Scaling Function
──────────────────────────────────────────────────── 9.7.1 Setting the Scaling Function Method Screen: SCALING (SYSTEM2) Method (1) Select the Scaling method Flashing cursor Press the SYSTEM key to call up the SYSTEM2 screen. Move the flashing cursor to the position shown in the figure on the left. Use the function keys to make the selection.
Page 243 ──────────────────────────────────────────────────── (3) Entering the numerical value Using the function key and the JOG control Move the flashing cursor to the desired Flashing cursor channel. Move the flashing cursor to each digit and use the JOG control, the function keys or the CH&NUM key to enter individual digits.
Page 244 ──────────────────────────────────────────────────── (3) Entering the numerical value Using the CH&NUM key Move the flashing cursor to the desired item. Use the function key to select the TEN-KEY INPUT. Use the CH&NUM key to enter the numerical value. Selection Selection ：Clear the currently displayed comments.
Page 245 ──────────────────────────────────────────────────── ■ Combination of the scaling and variable functions The scaling function can be combined with the variable function. If both the scaling and variable functions are to be used in the order of "Variable" → "Scaling," it is necessary to use the previously converted physical quantity (after scaling) to set the upper and lower limits of variable setting .
Page 246: Scaling Setting Example
──────────────────────────────────────────────────── 9.7.2 Scaling Setting Example The example below shows the scaling function of the strain unit. When a sensor (the conversion ratio is characterized as "3G = 1200 με(micro strain)") is used: Scaling method：2-point method Setting：SCI or ENG Converting value：1200（με） →3（scale） 0（με）...
Page 247: Comment Function (System 3)
──────────────────────────────────────────────────── 9.8 Comment Function (SYSTEM 3) 9.8.1 Title Comment Input ・Title comment input is described. ・Three types of title comment are available. (1) SET: Function, time axis range, magnification/compression ratio along the time axis, date and time of trigger (2) COMMENT: Comment of up to 40 characters (3) SET &...
Page 248: Analog Channel Comment Input
──────────────────────────────────────────────────── 9.8.2 Analog Channel Comment Input ・Analog channel comment input is described. ・Three types of analog channel comment are available. (1) SET: Full-span voltage for each channel, measurement range, magnification/compression ratio along the measurement range, zero position, low-pass filter setting (2) COMMENT: Comment of up to 40 characters (3) SET &...
Page 249 ──────────────────────────────────────────────────── When the flashing cursor is moved with the CURSOR keys, the following function key indication appears. Selection Selection ：Display the comment input window. Flashing cursor ：Clear the currently displayed comments. For details on comment input, see Section 9.8.4. When "COMMENT" or "SET & COMMENT"...
Page 250: Logic Channel Comment Input
──────────────────────────────────────────────────── 9.8.3 Logic Channel Comment Input ・Logic channel comment input is described. ・One type of logic channel comment is available. (1) COMMENT: Comments can be entered separately for every channel. Method Screen: COMMENT (SYSTEM3) Method Press the SYSTEM key to call up the SYSTEM3 screen.
Page 251 ──────────────────────────────────────────────────── When the flashing cursor is moved with the CURSOR keys, the following function key indication appears. Selection Selection ：Display the comment input window. ：Clear the currently displayed comments. For details on comment input, see Section 9.8.4. When "COMMENT" is selected, the comments are printed.
Page 252: Character Entry Procedure
──────────────────────────────────────────────────── 9.8.4 Character Entry Procedure The procedure for entering the characters for the comments, units, etc. is described. Method Screen: COMMENT (SYSTEM3) Method Move the flashing cursor to the position in which you want to enter the comment. Move the flashing cursor to the desired position.
Page 253 ──────────────────────────────────────────────────── Comment copy A comment made on one channel can be copied to another channel. This can be done for either an analog or logic channel. Method Screen: COMMENT (SYSTEM3) Method Press the SYSTEM key to call up the SYSTEM3 screen. Move the flashing cursor to the channel for which you want to copy the comment.
Page 254: Setting The Display Screen
──────────────────────────────────────────────────── 9.9 Setting the Display Screen 9.9.1 Entering by CH.SET key Pressing the CH.SET key, enables the measurement conditions for each channel on the display screen to be set or changed. It is possible to make the settings, while monitoring the waveforms in real time on the DISPLAY screen .
Page 255: Vernier Function
──────────────────────────────────────────────────── 9.9.2 Vernier Function ・Using fine adjustment, the input voltage can be matched to a desired reading. ・For example, an actual input voltage of 1.8 V can be converted to a 2.0 V reading. Method Method Press the DISP key to call up the DISPLAY screen.
Page 256: Direct Channel Setting
──────────────────────────────────────────────────── 9.9.3 Direct Channel Setting Method Method Press the DISP key to call the DISPLAY screen. Enter the Channel No. using the CH&NUM key, then press the CH key, the POSITION key, or the RANGE key to display the input window for the selected channel.
Page 257: Setting The 8937 Voltage/Temp Unit
──────────────────────────────────────────────────── 9.10 Setting the 8937 VOLTAGE/TEMP UNIT A common GND is used for voltage and temperature input on all channels. WARNING Never input voltage and temperature simultaneously, since doing so could result in damage to the sample being tested. ・Digital filter and dfift compensation settings cannot be determined from the NOTE DISPLAY or CHANNEL screen.
Page 258: Making The Settings Of Voltage Measurement
──────────────────────────────────────────────────── 9.10.1 Making the Settings of Voltage Measurement The digital filter can be configured when the measurement range is 500μV to 2 mV. The digital filter is a function which eliminates the noise component by additive averaging inside the amplifier. This results in a data update rate of about 100 μs.
Page 259 ──────────────────────────────────────────────────── (3) Setting the digital filter Move the flashing cursor to the position shown in the figure on the left. Use the function keys to set the digital filter. Flashing cursor Selection Selection ：Digital filter is enabled. (Measurement range: 500μ to 2 mV) ：Digital filter is disabled.
Page 260: Making The Settings Of Temperature Measurement
──────────────────────────────────────────────────── 9.10.2 Making the Settings of Temperature Measurement Select the thermocouple type, drift correction and reference junction compensation to be used. Method Screen: CHANNEL1, DISPLAY Method (1) Setting the measurement mode Call up the CHANNEL1 or DISPLAY screen. Use the CH.SET key to display the desired Flashing cursor channel screen.
Page 261 ──────────────────────────────────────────────────── (3) Setting the drift compensation Drift compensation is a function that periodically (about once per second) cancels the variances in the reference voltage that accumulate over time. Flashing cursor Move the flashing cursor to the position shown in the figure on the left. Use the function keys to set the drift compensation.
Page 262 ──────────────────────────────────────────────────── Measurement range and upper and lower limits of measurement input Note that the upper and lower limits of measurement input vary according to measurement range. Waveform saturation will result if the limits indicated in the table below are exceeded. Measurement range 10℃/DIV 20℃/DIV...
Page 263: Setting The 8938 Fft Analog Unit
──────────────────────────────────────────────────── 9.11 Setting the 8938 FFT ANALOG UNIT The 8938 FFT ANALOG UNIT contains an internal anti-aliasing filter required for FFT analysis. Enable the anti-aliasing filter when doing FFT analysis. Refer to Section 9.3 for the common settings. Method Screen: CHANNEL1, DISPLAY Method Setting the Anti-aliasing Filter Call up the CHANNEL1 or...
Page 264: Setting The 8939 Strain Unit
──────────────────────────────────────────────────── 9.12 Setting the 8939 STRAIN UNIT For the channel to which the 8939 STRAIN UNIT is assigned, an auto balancing must be executed through the range setup menu. Auto balancing is a function by which the reference output level of the converter is adjusted to the specified zero position.
Page 265 ──────────────────────────────────────────────────── ・Connect the sensor, make sure there is no input, and execute auto NOTE balancing. ・Auto balancing is disabled during measurement. ・The key manipulation is rejected during measurement. ・Repeat the auto balancing when the input unit was changed, when the power is on/off, or when the system is set to reset, when the measurement range is change, when the strain gauge adapter is change.
Page 266: Setting The 8940 F/V Unit
──────────────────────────────────────────────────── 9.13 Setting the 8940 F/V UNIT The 8940 F/V UNIT can measure frequency, count, pulse duty ratio, voltage and current on each channel (with one measurement type per channel).Refer to Section 9.3 for the common settings. ■Measurement Mode Selection Select the measurement mode from the following: Frequency Obtains the frequency of the input pulse corresponding to...
Page 267: Setting Frequency Mode
──────────────────────────────────────────────────── 9.13.1 Setting Frequency Mode Select the measurement range. For the Frequency mode, three types of measurement can be performed depending on the measurement range. Frequency can be measured from 0.05 Hz to 5 kHz, RPM can be measured from 5 to 500 rpm, or commercial power can be measured at P50 or P60 Hz. Method Screen: CHANNEL1, DISPLAY Method...
Page 268 ──────────────────────────────────────────────────── (3) Setting the hold function Move the flashing cursor to the position shown in the figure on the left. Use the function keys to set the digital filter. Flashing cursor Selection Selection ：Move the arrow up in the selection window.
Page 269 ──────────────────────────────────────────────────── (5) Setting the threshold value Move the flashing cursor to the position shown in the figure on the left. Use the function keys to make selection. Selection Selection Flashing cursor ：Value up, large step ：Value up, small step ：Value down, small step ：Value down, large step ■...
Page 270 ──────────────────────────────────────────────────── (2) The following are differences depending on whether Hold is ON or OFF when the frequency drops to 0 Hz from a certain frequency, then increases from that point. 【 Actual Event 】【 When Hold is ON】 Frequency drops to 0Hz from a The initial value is held (the signal is certain frequency, then increases not halved), so the result is as...
Page 271: Setting The Count Mode
──────────────────────────────────────────────────── 9.13.2 Setting the Count Mode For count mode, the unit of measurement is ’c’ (counts). Method Screen: CHANNEL1, DISPLAY Method (1) Setting the measurement mode Call up the CHANNEL1 or DISPLAY screen. Use the CH.SET key to display the desired Flashing cursor channel screen.
Page 272 ──────────────────────────────────────────────────── (3) Setting the pull-up resistance Set the pull-up resistance on or off. Pull-up resistance is used when connecting to an open collector output signal. For normal measurements, disable the pull-up resistance Flashing cursor (set to OFF). Move the flashing cursor to the position shown in the figure on the left.
Page 273: Setting The Pulse Duty Ratio Mode
──────────────────────────────────────────────────── 9.13.3 Setting the Pulse Duty Ratio Mode The pulse duty ratio measures the ratio of single High pulses. Method Screen: CHANNEL1, DISPLAY Method (1) Setting the measurement mode Call up the CHANNEL1 or DISPLAY screen. Use the CH.SET key to display the desired Flashing cursor channel screen.
Page 274 ──────────────────────────────────────────────────── (3) Setting the threshold value Move the flashing cursor to the position shown in the figure on the left. Use the function keys to make selection. Selection Selection Flashing cursor ：Value up, large step ：Value up, small step ：Value down, small step ：Value down, large step ────────────────────────────────────────────────────...
Page 275: Setting The Voltage Mode
──────────────────────────────────────────────────── 9.13.4 Setting the Voltage Mode Method Screen: CHANNEL1, DISPLAY Method (1) Setting the measurement mode Call up the CHANNEL1 or DISPLAY screen. Use the CH.SET key to display the desired Flashing cursor channel screen. Use the CURSOR key to move the flashing cursor to the graph position.
Page 276 ──────────────────────────────────────────────────── (3) Setting the input coupling Move the flashing cursor to the position shown in the figure on the left. Use the function keys to make selection. Selection Selection Flashing cursor ：DC coupling ：AC coupling ：The input signal is not connected. (2) Setting the pull-up resistance Set the pull-up resistance on or off.
Page 277: Setting The Current Mode
8940. It must be performed before current measurement. Up to 6 channels can be selected for current measurement at the same time on the 8826. Flashing cursor Move the flashing cursor to the position shown in the figure on the left.
Page 278 ・Up to six channels can be selected for current measurement at the same NOTE time on the 8826. However, the clamp check does not work correctly when more than six clamps are installed. Remove any extra clamps so that no more than six are installed before attempting the clamp check.
Page 279: Setting The 8947 Charge Unit
──────────────────────────────────────────────────── 9.14 Setting the 8947 CHARGE UNIT The 8947 CHARGE UNIT can measure either voltage or acceleration on each channel (one channel per measurement type). Refer to Section 9.3 for the common settings. Measures using charge-output type voltage acceleration CHARGE pickup sensor Preamp Measures using internal-preamp type acceleration pickup...
Page 280: Setting The Acceleration Measurement
──────────────────────────────────────────────────── 9.14.1 Setting the Acceleration Measurement (Charge/Preamp) When the PREAMP measurement mode is selected, voltage (15 V at 2 mA) WARNING is applied internally to the BNC connector when measurement starts. To avoid electric shock and damage to measurement objects, select a measurement mode other than PREAMP or turn the unit off when connecting a sensor or probe to the BNC terminals.
Page 281 ──────────────────────────────────────────────────── (2) Setting the sensor sensitivity Set the sensor sensitivity. Sensor sensitivity is the value of the acceleration sensor. The measurement range varies according to sensor sensitivity. Set the sensor sensitivity before you set the measurement range. Refer to Section 9.14.2. Flashing cursor Move the flashing cursor to the position shown in the figure on the left.
Page 282 ──────────────────────────────────────────────────── (4) Setting the input coupling DC coupling is not available in the Charge and Preamp modes. Move the flashing cursor to the position shown in the figure on the left. Flashing cursor Use the function keys to make selection. Selection Selection ：AC coupling...
Page 283: Setting The Sensor Sensitivity
──────────────────────────────────────────────────── 9.14.2 Setting the Sensor Sensitivity ) units. However, Sensor sensitivity is set in meters-per-second squared (m/s some acceleration sensors use G (gravitational constant) units, in which case the read value should be divided by 9.8 (m/s Example 1 If specified sensor sensitivity is written as 1.08 (pC/(m/s sensor sensitivity level should be set to 1.08.
Page 284 ──────────────────────────────────────────────────── Example 2 Sensor sensitivity is 0.05 pC/(m/s ・Multiply sensor sensitivity by 2 and set 0.1 pC/(m/s ) as the sensor sensitivity. ・Set the scaling. Conversion ratio method 2-point method 0.0500E+00 → 0.1000E+00 EU/V : 0.1/0.05 = 2.0000E+00 Offset : 0.0000E+00 0.0000E+00 →...
Page 285: Setting The Voltage Mode
──────────────────────────────────────────────────── 9.14.3 Setting the Voltage Mode Method Screen: CHANNEL1, DISPLAY Method (1) Setting the measurement mode Call up the CHANNEL1 or DISPLAY screen. Use the CH.SET key to display the desired Flashing cursor channel screen. Use the CURSOR key to move the flashing cursor to the graph position.
Page 286 ──────────────────────────────────────────────────── ・We recommend using an input unit equipped with an anti-aliasing filter NOTE that can be enabled to minimize sampling distortions during FFT analysis. ・Refer to Section 21.3.10 for more information about aliasing distortion and anti-aliasing filters. ・If the anti-aliasing filter is on, "A" is printed at the end of the filter settings page during list printing.
Page 287: Chapter 10 Trigger Functions
──────────────────────────────────────────────────── Chapter 10 Trigger Functions 10.1 Outline of the Trigger Function ・The term "trigger" refers to a signal which is used to control the timing for recording start or stop. ・The term "triggering has occurred" refers to the state when such a signal has activated recording start or stop.
Page 288: Operation Sequence ( Trigger Mode Setting )
──────────────────────────────────────────────────── 10.2 Operation Sequence ( Trigger mode setting ) Setting the Trigger Mode Setting the Trigger Mode SINGLE See Section 10.4. Trigger is registered only once. After START key This determines whether the trigger is accepted repeatedly was pressed, unit starts waveform recording when after once completing a measurement operation.
Page 289 ──────────────────────────────────────────────────── Select the Trigger Type Select the Trigger Type Analog Trigger See Section 10.8.1. Level Trigger Triggering occurs when the input signal crosses the preset trigger level ･The analog signal input (voltage) with the preset trigger slope ( , channels can be used as ( MEM, REC, REC&MEM, FFT ) trigger source.
Page 290: Trigger Screen Organization
──────────────────────────────────────────────────── 10.3 Trigger Screen Organization Indicates the Trigger screen organization. Press the TRIG key to call up the TRIGGER screen. Trigger Screen Trigger Screen Setting items ・Trigger mode ・Pre-Trigger ・Trigger Source ・Setting the Analog Trigger (1 to 16 ch) ・Manual trigger Press Setting items ・Trigger mode...
Page 291: Trigger Mode
──────────────────────────────────────────────────── 10.4 Trigger Mode ・The trigger mode determines the way triggering is used to control operation of the 8826. ・When all trigger sources are OFF, a recording operation begins immediately (free-run operation). Screen TRIGGER, DISPLAY Method Method Call up the TRIGGER or DISPLAY screen.
Page 292: Pre-Trigger
──────────────────────────────────────────────────── 10.5 Pre-trigger The pre-trigger function serves to record the waveform not only after but also before triggering has occurred. MEM, REC&MEM, FFT Function Using the recording start point as 0% and the recording end point as 100%, the trigger point can be specified in percent. When all trigger sources are set to OFF, pre-trigger cannot be set.
Page 293 ──────────────────────────────────────────────────── ・When the pre-trigger is set, the trigger will not be registered for a certain NOTE period after the start of measurement. (During this interval, Pre-trigger standby is shown on the display.) ・When the trigger can be registered, the indication Waiting for trigger is shown on the display.
Page 294 ──────────────────────────────────────────────────── RMS Function In the RMS recorder function, using the recording start point as 0 DIV, the trigger point can be specified in DIV (0, 5, 10 DIV). When all trigger sources are set to OFF, the pre-trigger setting is invalid. Screen TRIGGER, DISPLAY Method...
Page 295: Trigger Timing ( Rec Only )
──────────────────────────────────────────────────── 10.6 Trigger Timing ( REC only ) ・The moment the trigger occurs, the time related to the waveform being recorded can be set. ・Not only the waveform after the trigger but also the waveform before the trigger can be recorded. Screen TRIGGER, DISPLAY Method...
Page 296: Trigger Source And/Or Linking
──────────────────────────────────────────────────── 10.7 Trigger Source AND/OR Linking The analog trigger, logic trigger, external trigger, and timer trigger can be linked with the AND/OR logical operators. OR: Triggering occurs when conditions for one trigger are met. AND: Triggering occurs when conditions for all triggers are met. Screen TRIGGER Method...
Page 297: Analog Trigger
──────────────────────────────────────────────────── 10.8 Analog Trigger ・The analog signal input channels can be used as trigger source. ・The type of trigger that can be used for the various functions is limited. ■ Available trigger types for each function Function Memory Recorder REC&MEM recorder recorder Trigger...
Page 298: Level Trigger ( Mem And Rec Only )
──────────────────────────────────────────────────── 10.8.1 Level Trigger ( MEM and REC only ) ・Triggering occurs when the input signal crosses the preset trigger level (voltage) with the preset trigger slope ( , ・When a trigger filter is used, triggering occurs only within the filter width. This is useful to exclude noise.
Page 299 ──────────────────────────────────────────────────── Screen TRIGGER, DISPLAY Method Method (1) Select the level trigger Call up the TRIGGER or DISPLAY screen. Move the flashing cursor to the position shown in the figure. LEVEL Use the function keys to select (2) Set the trigger level. Move the flashing cursor to the position shown in the figure on the left.
Page 300 ──────────────────────────────────────────────────── (4) Set the trigger filter Move the flashing cursor to the position shown in the figure on the left. Use the JOG control or the function keys to make the selection. ■ In the MEM, REC&MEM, FFT Function : Trigger filter is disabled 0.1 to 10.0 : Trigger filter is enabled.
Page 301: Window-In, Window-Out Trigger
──────────────────────────────────────────────────── 10.8.2 Window-In, Window-Out Trigger ■ Window-In Trigger Set upper limit level and lower limit level and activated when the input signal enters the range between these limits. ■ Window-Out Trigger Set upper limit level and lower limit level and activated when the input signal leaves this range.
Page 302 ──────────────────────────────────────────────────── (3) Set the trigger filter Move the flashing cursor to the position shown in the figure on the left. Use the JOG control or the function keys to make the selection. ■ In the MEM, REC&MEM, FFT Function : Trigger filter is disabled 0.1 to 10.0 : Trigger filter is enabled.
Page 303: Voltage Drop Trigger ( Mem Only )
・The time axis ranges that can be used are 100μs to 50 ms/DIV. For the FFT function, the frequency axis range is 800 Hz to 400 kHz. ・The 8826 is designed to measure commercial power supplies (50/60 Hz). ・This unit detects momentary voltage drops in commercial power supplies.
Page 304 ──────────────────────────────────────────────────── (3) Set the trigger level. Move the flashing cursor to the position shown in the figure. Use the function keys or the JOG control to set the trigger level. The rms value as well as the trigger level are displayed. Selection Selection ：Value up, large step...
Page 305: Period Trigger
──────────────────────────────────────────────────── 10.8.4 Period Trigger This function sets both the period reference voltage and the period range, and measures the rise (fall) period of the set voltage. When the measured period deviates from the specified range, triggering occurs. Screen TRIGGER, DISPLAY Method Method (1) Select the period trigger.
Page 306 ──────────────────────────────────────────────────── (3) Select the trigger direction (slope). Move the flashing cursor to the position shown in the figure. Use the function keys to select the trigger direction (slope). Selection Selection ：Enables triggering on the rising period. ：Enables triggering on the falling period.
Page 307 ──────────────────────────────────────────────────── Since a trigger filter is not prepared for the period trigger, triggering may NOTE mistakenly occur due to noise (see the figure below). To prevent such an event, use an appropriate low-pass filter. Trigger level Direction (slope : Reference voltage Triggering occurs, since the system judges that the period deviates from the specified range.
Page 308 ──────────────────────────────────────────────────── [ Signal with a period to be measured that is larger than the upper limit of the period trigger (trigger slope: ): ] Signal cycle Reference voltage Example of upper limit 1 Example of upper limit 2 When the upper limit of the set period range appears on the screen before the signal crosses the reference voltage at the set trigger slope, the upper limit is defined as the triggering position.
Page 309: Rms Level Trigger
──────────────────────────────────────────────────── 10.8.5 RMS Level Trigger ・The commercial power supplies, 50/60 Hz and the DC signals can be measured. ・This trigger occurs when the input signal crosses a predetermined trigger level (rms value) in a particular direction ("slope": or ). Input waveform Trigger level Trigger level （Upward trigger direction (slope :...
Page 310 ──────────────────────────────────────────────────── (3) Select the trigger direction (slope). Move the flashing cursor to the position shown in the figure. Use the function keys to select the trigger direction (slope). Selection Selection ：Enables triggering on the leading edge. ：Enables triggering on the falling edge.
Page 311: Logic Trigger
──────────────────────────────────────────────────── 10.9 Logic Trigger ・The signal of a logic channel can be used as trigger source. ・A trigger pattern and logical operator (AND/OR) are specified, and triggering occurs when the trigger conditions are met. ・A trigger filter can be specified, so that triggering occurs only when the trigger conditions are met within the filter width.
Page 312 ──────────────────────────────────────────────────── (3) Set the trigger pattern Move the flashing cursor to the position shown in the figure on the left. Select 1 - 4 with the function key display. Make the setting with the function keys. When "CH A" is selected, the setting is for logic input CH A1 - CH A4 from left to right.
Page 313: External Trigger Function
・The external trigger is activated by either shorting the EXT TRIG terminal and GND terminal or applying a falling edge signal going below 2.5 V. ・The external trigger facility can be used to synchronize a number of the 8826 units for parallel operation.
Page 314: Timer Trigger Function
──────────────────────────────────────────────────── 10.11 Timer Trigger Function ・This function serves to activate recording at preset times. ・Triggering can be performed at constant intervals within a preset start time and end time. Time interval Time interval Start time End time Screen TRIGGER Method Method (1) Set the timer trigger.
Page 315 ──────────────────────────────────────────────────── (3) Set the trigger interval. interval Move the flashing cursor to the item, as shown in the figure on the left. Use the function keys or the JOG control to make the setting. Selection Selection ：Value up, 10-units ：Value up, 1-units ：Value down, 1-units ：Value down, 10-units ■...
Page 316 ──────────────────────────────────────────────────── Relation between timer trigger and AND/OR linking ■ When trigger sources are set to OR All trigger sources are valid. If other trigger sources have been set, triggering can also occur before the start time or after the end time. Invalid (overlaps with recording) Measurement start Level trigger...
Page 317: Manual Trigger
TRIGGER screen (MEM) 10.13 Trigger Output Terminal ・When triggering occurs, a signal is output from the TRIG OUT terminal. ・This can be used to synchronize several 8826 units. ・For details, see Section 17.3. 【 Rear panel 】 Trigger Output terminal...
Page 318 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 10.13 Trigger Output Terminal...
Page 319: Chapter 11 Display Screen Operation
──────────────────────────────────────────────────── Chapter 11 Display Screen Operation Indicates the DISPLAY screen operation. ・To set a numerical value using the JOG control on Setting the Input channel Setting the Input channel the display screen, press the VALUE select key. See Section 9.9. （The selection window is not displayed.) ・Pressing the CH.SET key, enables the measurement conditions for each channel on the...
Page 320: Scrolling The Waveform
──────────────────────────────────────────────────── 11.1 Scrolling the Waveform The waveform on the display can be scrolled horizontally. Method Screen: DISPLAY Method Press the WAVE SELECT key so that the WAVE LED lights up. Use the JOG/SHUTTLE control to scroll the waveform. Auto-scroll ・If turning the the SHUTTLE control fully and holding the control for about five seconds, the indication Auto scroll appears on the function key display and the waveform continues to scroll even if releasing the control.
Page 321: Using The A/B Cursors
──────────────────────────────────────────────────── 11.2 Using the A/B Cursors The A/B cursors can be used to read a time difference, frequency, or potential difference on screen. (When scaling is used, the difference is displayed in the scaling value. See Section 9.7.) Cursors Function Line cursor The value at cursor A and cursor B, and the value between the two cursors can be determined.
Page 322: Using The Line Cursors (Vertical)
──────────────────────────────────────────────────── 11.2.1 Using the Line Cursors (Vertical) The line cursor (vertical) displays the time and period starting from the trigger position. On the recorder, the line cursor (vertical) displays the time and period starting from the initiation of recording. Screen: DISPLAY Method Method Move the flashing cursor to the csr item.
Page 323 ──────────────────────────────────────────────────── ・When the A･B CSR SELECT key is used to activate the A/B cursor mode, NOTE the trace cursor (X-Y CONT: line cursor) can be used, also if it was set to OFF. ・When the vertical cursor or trace cursor is used, cursor measurements are possible also when one of the cursors is currently off screen.
Page 324: Using The Line Cursors (Horizontal)
──────────────────────────────────────────────────── 11.2.2 Using the Line Cursors (Horizontal) Used to read a voltage value of the specified channel. A/B cursor can be specified a different channel. Screen: DISPLAY Method Method Move the flashing cursor to the csr item. Use the function keys to select the "Line cursor (horizontal: v)".
Page 325 ──────────────────────────────────────────────────── ・When the A･B CSR SELECT key is used to activate the A/B cursor mode, NOTE the trace cursor (X-Y CONT: line cursor) can be used, also if it was set to OFF. ・Only channels for which a waveform is being displayed can be specified. ・By specifying a different channel for the A and B cursors, a potential difference between the waveforms in the respective channels can be determined.
Page 326: Using The Trace Cursors
──────────────────────────────────────────────────── 11.2.3 Using the Trace Cursors Used to read the value at point where the cursor crosses the waveform of the specified channel. A/B cursor can be specified a different channel. Screen: DISPLAY Method Method Move the flashing cursor to the csr item. Use the function keys to select the "Trace cursor".
Page 327 ──────────────────────────────────────────────────── ・When the A･B CSR SELECT key is used to activate the A/B cursor mode, NOTE the trace cursor can be used, also if it was set to OFF. ・When the vertical cursor or trace cursor is used, cursor measurements are possible also when one of the cursors is currently off screen.
Page 328: Using The A/B Cursors (X-Y Screen)
──────────────────────────────────────────────────── 11.2.4 Using the A/B Cursors (X-Y Screen) The cursor can be used on the X-Y screen. Partial X-Y plotting enables operation of the A/B cursors. Screen: X-Y DISPLAY Method Method Move the flashing cursor to the csr item. Use the function keys to make selection. Selection Selection ：Disable A/B cursors...
Page 329: The Magnification/Compression Ratio Along The Time Axis
──────────────────────────────────────────────────── 11.3 The Magnification/Compression Ratio Along the Time Axis ・The magnification/compression ratio along the time axis can be set. (MEM and REC&MEM) ・By magnifying the waveform, detailed observations can be made. By compressing the waveform, an entire change can be promptly apprehended. ・Magnification/compression of the screen uses the left edge as reference, regardless of the status of the A/B cursor.
Page 330: Zoom Function
──────────────────────────────────────────────────── 11.4 Zoom Function This function divides the memory recorder function display screen into upper and lower windows, so that the regular-size waveform is displayed in the upper window and the waveform enlarged in the time axis direction is displayed in the lower window. Screen: DISPLAY Method Method...
Page 331 ──────────────────────────────────────────────────── ・The A/B cursors can be used only for the waveform on the lower screen. NOTE ・During the zoom function, pressing the PRINT key prints the waveform on the lower screen. (The waveform becomes that of the one screen display. If the A/B cursors are used, partial print is applied.) ・When the logic waveform is set so as to be displayed in a position from 5 to 8, it is not displayed.
Page 332: Input Level Monitor Function
──────────────────────────────────────────────────── 11.5 Input Level Monitor Function ・The levels of all input waveforms can be monitored in real time. ・Levels are displayed separately for CH1 - CH32 and logical CH A - CH H. ・To select the input channel, use the CH.SET key. See Section 9.9. ・This function is available in all modes.
Page 333: View Function (View Key)
──────────────────────────────────────────────────── 11.6 View Function (VIEW key) The view function performs the following operations. It is not available with the FFT function. Shows the position of the currently displayed waveform Position display within the entire recording length. Block display Shows the memory segmentation status (MEM). Position display ・Indicates the position of the currently displayed waveform within the entire recording length.
Page 334 ──────────────────────────────────────────────────── Screen: DISPLAY Method Method Press the VIEW key on the display screen shows at the bottom of the screen the position with respect to the recording length of the displayed part of the waveform. Move the ( ) mark to the desired point with function key.
Page 335 ──────────────────────────────────────────────────── Block display (MEM only) ・When memory segmentation is being used, the memory block status is shown. ・Sequential save and multi-block function can be used block display. ・Any block in which an input signal is recorded can be called up on the display.
Page 336 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 11.6 View Function (VIEW key)
Page 337: Chapter 12 System Screen Settings
──────────────────────────────────────────────────── Chapter 12 SYSTEM Screen Settings 12.1 Overview The SYSTEM screen serves to set the following items which are common to all functions. COPY OUTPUT Use channel SYSTEM 4 SYSTEM 1 システム 1 システム 5 INTERFACE SET UP 各種設定インタフェース PRINT OUTPUT Start backup See Section 12.2.
Page 338: Set Up Screen (System 1)
──────────────────────────────────────────────────── 12.2 SET UP Screen (SYSTEM 1) Method Screen: SET UP (SYSTEM1) Method Press the SYSTEM key to call up the SYSTEM1 screen. Move the flashing cursor, want to set the item. Use the function keys to make the selection. The item of channel marker, time value display, upper and lower limits of printer, zero position comment, counter printing...
Page 339: Start Backup
・When this function is enabled, the unit will operate as follows: If the power supply is interrupted during recording operation (while the START key LED is lit), and then the power supply is restored, the 8826 goes back into the measurement operation mode, and recording is restarted immediately.
Page 340: Beep Sound
──────────────────────────────────────────────────── ■ Custom setting (setting the color as desired) Change the R.G.B. setting values of each item on the screen. Move the flashing cursor to the item for which you want to change the setting values, and use the JOG control or the function keys to make the settings. The setting values inside the window applies to the colors of the particular window.
Page 341: Grid Type
──────────────────────────────────────────────────── 12.2.7 Grid Type ・Selects the type of grid shown on the display screen and drawn on the recording paper. ・On the waveform display screen, the standard and fine grids are defined as the standard, and the standard (dark) and fine (dark) grids are defined as the standard (dark) grids.
Page 342: List & Gauge
──────────────────────────────────────────────────── 12.2.10 List & Gauge When a waveform is printed out (except for screen hard copies), the gauge can be printed out at the beginning, and a listing can be printed out at the end. On the wide X-Y screen, the horizontal axis gauge is not printed out. ：No gauges or listing Selection Selection...
Page 343: Counter Print
──────────────────────────────────────────────────── 12.2.14 Counter Print In waveform printing, the counter can be printed out. This function is useful to distinguish between similar waveforms. ：Counter Print is not printed. Selection Selection ：Counter Print is printed with date. ：Counter Print is printed with counter name. ・A counter name of up to ten characters can be specified.
Page 344: Scaling Screen (System 2)
──────────────────────────────────────────────────── 12.3 SCALING Screen (SYSTEM 2) ・The scaling function can be used to convert an output voltage from a sensor or similar into a physical quantity. ・Two types of scaling functions are available. ・The gauge scale (maximum and minimum values of horizontal axis) and A/B cursor measurement values are displayed in the scaled units.
Page 345: Interface Screen (System 4)
──────────────────────────────────────────────────── 12.5 INTERFACE Screen (SYSTEM 4) Method Screen: INTERFACE (SYSTEM4) Method Press the SYSTEM key to call up the SYSTEM4 screen. Move the flashing cursor, want to set the item. Use the function keys to make the selection. ■ Setting the 8910 CAN ADAPTER You can edit the 8910 CAN ADAPTER setting when the 8910 CAN ADAPTER is connected via the RS-232C interface.
Page 346: Output Destination By The Print Key
Section 14.12.2. ・Refer to the printer operating manual for the control codes. ・Files stored in BMP format cannot be read by the 8826. 12.5.2 Output Destination by the PRINT key The measurement data output destination when the PRINT key is pressed is specified.
Page 347: Setting The Interface
──────────────────────────────────────────────────── 12.5.3 Setting the Interface GP-IB interface Settings When the GP-IB interface has been selected, and the 9558 GP-IB CARD is connected, the following items must be set. Mode: ADDRESSABLE / TALK ONLY / DISABLE Address: 0 to 30 Header: OFF/ON RS-232C Interface Settings When the RS-232C interface has been selected, and the 9557 RS-232C CARD is connected, the following items must be set.
Page 348: Setting The Scsi Id And Target Id
When using the HIOKI 9333 LAN COMMUNICATOR, you can remotely control the 8826 on a PC or use the Auto Save function to save 8826 data on a PC via the 9333. For details, refer to the instruction manual provided with the 9333.
Page 349 FTP Server The 8826 use an FTP (File-Transfer-Protocol, compliant with the RFC959) server. You can access files on 8826 internal media from a PC by using FTP client software. Each medium appears as a directory on the FTP server as shown below.
Page 350 [Enter]. 4. Connect the LAN cable to the 8826 and the network. Be sure to make the settings above before connecting the 8826 to the network. Note that making these settings with the 8826 connected to the network may result in illegal information being sent to the network-for example, if the same IP address as that of another device on the network is selected.
Page 351 Otherwise, the changes will not be reflected. Host Name Set the name to represent the 8826 on the network. Choose a unique name that is different from those of other devices on the network. When using the 9333 LAN COMMUNICATOR, note that the host name is used to identify a directory on the PC.
Page 352 When the PC is on the same network, use the default gateway of the PC. When the 8826 is connected one-to-one with a PC or both are connected to the same hub, a gateway is not necessary. Turn it off.
Page 353 "Read/write-enable": An external device can read, write, or delete files. ■ Connection After completing the setting above, connect the devices. ・Connect the LAN connector of the 8826 to the hub using a straight LAN cable or the 9642 LAN CABLE. ・Connecting the 8826 to a PC one-to-one A cross cable or straight cable and a cross connector are required.
Page 354: Initialize Screen
──────────────────────────────────────────────────── 12.6 INITIALIZE Screen Setting the clock (TIME SET), clearing waveform data (DATA INITIALIZE), and initialization of setting items (SYSTEM RESET) are available. Method Screen: INITIALIZE (SYSTEM5) Method Press the SYSTEM key to call up the SYSTEM5 screen. Move the flashing cursor, want to set the item.
Page 355: Wave Data Clear (Data Initialize)
──────────────────────────────────────────────────── 12.6.2 WAVE DATA CLEAR (DATA INITIALIZE) Clears and initializes waveform data stored in memory. Method Method Move the flashing cursor to 2: WAVE DATA CLEAR, and make the setting. Press the F1 [ exec ]. 12.6.3 SYSTEM RESET ・Resets all settings, which except for communications settings (GP-IB, RS- 232C, SCSI, LAN), to the factory default values.
Page 356: Self Check
Use the function keys to make the selection. 12.7.1 ROM/RAM CHECK ・This test checks the internal memory (ROM and RAM) of the 8826. ・The test is non-destructive; it does not affect the contents of RAM. ・The result is displayed as follows. OK: Passed, NG: Failed...
Page 357: Display Check
──────────────────────────────────────────────────── 12.7.3 DISPLAY CHECK ・This test checks the display. ・Two check patterns (solid-color display check and gradation check) are available. Method Method Move the flashing cursor to the 3: DISPLAY CHECK item. Press the [ exec ] to check the display. Press any key to move to the next check.
Page 358: Pc Card Check
──────────────────────────────────────────────────── 12.7.5 PC CARD CHECK This test checks the PC card. Method Method Move the flashing cursor to the 5: PC CARD CHECK item. Press the [ exec ] to check the PC card. During the test, all keys are disabled.
Page 359: Chapter 13 Printout Of Measurement Data
──────────────────────────────────────────────────── Chapter 13 Printout of Measurement Data Waveform data can be printed out in two formats: waveform or numeric. Seven different procedures can be used to print out the measured waveforms. On the printer, the print density can be changed in five steps. Setting the print mode Setting the Smooth printing Waveform...
Page 360: Printout Of Measurement Data Operating Procedure
──────────────────────────────────────────────────── 13.1 Printout of Measurement Data Operating Procedure STATUS screen 測定データの処理・Display and record as one graph. Format SINGLE (At the most, 32 analog + 32 logic signals) See Section 13.2.1. ・Display and record as two graphs. (At the most, 32 DUAL analog + 16 logic signals) ・Display and record as four graphs.
Page 361 ──────────────────────────────────────────────────── SYSTEM screen システム設定を行いま SYSTEM1 Grid Type SET UP Channel Marker See Section 13.4.1. Time Value List & Gauge Printer Density Upper-lower print 0 position Comment Counter Print SYSTEM2 See Section 13.4.2. SCALING SYSTEM3 See Section 13.4.3. COMMENT SYSTEM4 Output Destination by the COPY key INTERFACE Output Destination by the PRINT key See Section 13.4.4.
Page 362: Setting The Status Screen (Printout)
──────────────────────────────────────────────────── 13.2 Setting the STATUS Screen (printout) 13.2.1 Setting the Format ・The style can be set for showing input signals on the screen display and recording them on the printer. ・The styles single, dual, quad,（DISPLAY screen） , oct・hex（Print only, Display quad style）X-Y single・X-Y quad (dot) and (line) are available. Screen STATUS Method...
Page 363: Setting The Print Mode
──────────────────────────────────────────────────── 13.2.2 Setting the Print Mode Select the format, waveform, or numerical value should be used to output measured data and calculation results. Waveform：The smooth print function can be used, but print speed will decrease. (MEM and REC&MEM only) Numerical value：The data spacing interval also must be set. Printing as a waveform Method Screen...
Page 364 ──────────────────────────────────────────────────── Printing as numeric data Screen STATUS Method Method (1) Setting the Print mode Press the STATUS key to call up the STATUS screen. Move the flashing cursor to the print mode item, as shown in the figure on the left Use the function keys to select LOGGING Selection...
Page 365: Setting The Channel Screen (Printout)
──────────────────────────────────────────────────── 13.3 Setting the CHANNEL Screen (printout) 13.3.1 Setting the Print Density When data is to be output from the internal printer, the print density (four types) can be set for the waveform color (12 colors). After the desired density is set, the waveform density is changed for the printout or hard-copy run.
Page 366: Setting The Waveform Display Graph Position
──────────────────────────────────────────────────── 13.3.2 Setting the Waveform Display Graph Position Set which graph type to use when display format has been set to DUAL, QUAD, OCT or HEX screen display on the STATUS screen. Method Method Screen: CHANNEL1, DISPLAY Press the CHAN key to call up the Flashing cursor CHANNEL1 screen.
Page 367 ──────────────────────────────────────────────────── Set which graph type to use when display format has been set to X-Y screen display on the STATUS screen. (MEM and REC only) Method Screen: CHANNEL1, DISPLAY Method Press the CHAN key to call up the CHANNEL1 screen. Move the flashing cursor to desired channel, and use the function keys to set the waveform color (including displays...
Page 368: Setting The System Screen (Printout)
──────────────────────────────────────────────────── 13.4 Setting the SYSTEM Screen (printout) 13.4.1 SET UP Screen (SYSTEM 1) Method Screen: SET UP (SYSTEM1) Method Press the SYSTEM key to call up the SYSTEM1 screen. Move the flashing cursor, want to set the item. Use the function keys to make the selection.
Page 369 ──────────────────────────────────────────────────── Time Value The time from the trigger point and other information can be printed. ：Displays the time from the trigger point (unit: fixed). Selection Selection ：Displays the time from the trigger point (unit: base 60). ：Displays the number of DIV from trigger point. ：Displays the time when a waveform is captured.
Page 370 ──────────────────────────────────────────────────── Counter Print In waveform printing, the counter can be printed out. This function is useful to distinguish between similar waveforms. ：Counter Print is not printed. Selection Selection ：Counter Print is printed with date. ：Counter Print is printed with counter name. ・A counter name of up to ten characters can be specified.
Page 371: Scaling Screen
──────────────────────────────────────────────────── 13.4.2 SCALING Screen ・The scaling function can be used to convert an output voltage from a sensor or similar into a physical quantity. ・Two types of scaling functions are available. ・The gauge scale (maximum and minimum values of horizontal axis) and A/B cursor measurement values are displayed in the scaled units.
Page 372: Interface Screen
13.4.4 INTERFACE Screen Select the output destination for the key functions. PRINT COPY When using the printer of the 8826, set the output destination to INTERNAL PRINTER. See Section 13.7 for details when using an external printer. Method Screen: INTERFACE (SYSTEM4)
Page 373: Example Of Printer Output
──────────────────────────────────────────────────── 13.5 Example of Printer Output ■ This section explains the printer type and how to read the printout (in the case of a SINGLE format display screen). MEMORY 100μs/DIV( 100μs ×1) Trig：’98-02-20 12:00:00 ［HIOKI 8826 COMMENT ］ 500μs 1.5ms ［ V］...
Page 374 ──────────────────────────────────────────────────── ■ Advanced settings ’98 - 02 - 20 - 0017 HIOKI 8826 MEMORY HiCORDER 2.5ms Upper １：２： ch2COMMENT ch1COMMENT ch1 COMMENT ch2 COMMENT chH1 COMMENT chH2 COMMENT Lower chH3 COMMENT １： -7 V chH4 COMMENT -4 V ２：...
Page 375 ──────────────────────────────────────────────────── ■ Printing the List (MEM) ＨＩＯＫＩ８８２６ＭＥＭＯＲＹＨｉＣＯＲＤＥＲ Trig-time： ’９８-０２-２０１２:００:００ STATUS SYSTEM Function： MEMORY Memory div： OFF Use channel： ch1-32 Grid type： STANDARD Time/DIV： 100μs Start back up： OFF Channel maker： COMMENT Back light saver： OFF Time value： TIME Averaging： ...
Page 376 ──────────────────────────────────────────────────── Dual Quad ──────────────────────────────────────────────────── 13.5 Example of Printer Output...
Page 377 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 13.5 Example of Printer Output...
Page 378 ──────────────────────────────────────────────────── X-Y1 Single X-Y1 Single X-Y Quad ──────────────────────────────────────────────────── 13.5 Example of Printer Output...
Page 379 ──────────────────────────────────────────────────── Print mode: LOGGING（MEM） Print mode: LOGGING（REC） ──────────────────────────────────────────────────── 13.5 Example of Printer Output...
Page 380: Printing Procedure
──────────────────────────────────────────────────── 13.6 Printing Procedure Internal External See Section printer printer ● ● Manual Print 13.6.1 ● − 13.6.2 Auto Print ● − 13.6.3 Real-Time Print ● ● Partial Print 13.6.4 ● ● Screen Hard Copy 13.6.5 ● List Print − 13.6.6 ●...
Page 381: Manual Print
──────────────────────────────────────────────────── 13.6.1 Manual Print This mode serves to print waveform data from the internal memory. MEM, REC&MEM Measurement data from one measurement (entire recording length) are printed. REC, RMS, REC&MEM The measurement data most recently stored in memory is printed out in up to 2000 divisions (10,000 divisions for 64 M words).
Page 382: Auto Print
──────────────────────────────────────────────────── 13.6.2 Auto Print Printout is carried out automatically after a waveform has been captured for the specified recording length (MEM and FFT). Method Screen: STATUS1 (MEM) Method : STATUS2 (FFT) Press the STATUS key to call up the STATUS1 screen.
Page 383: Real-Time Print
──────────────────────────────────────────────────── 13.6.3 Real-Time Print The input waveform and data are printed out continuously in real time (REC, RMS, and REC&MEM). Method Screen: STATUS Method Press the STATUS key to call up the STATUS screen. Move the flashing cursor to the printer item, as shown in the figure on the left.
Page 384: Partial Print
──────────────────────────────────────────────────── 13.6.4 Partial Print ・This function prints the waveform between the A and B cursors (vertical or trace cursors). MEM, REC&MEM Specified range (out of entire data recorded from a measurement) is printed. REC, RMS Specified range (out of last 2,000 (expended 64 M is 10,000) divisions (magnification: ×1) of data in memory) is printed.
Page 385: Screen Hard Copy
──────────────────────────────────────────────────── 13.6.5 Screen Hard Copy The display contents of the all screens can be printed out as is. Method Screen: All Method Call up the desired screen. Press the COPY key. ・Even if the gauge is set to the List & Gauge function, the gauge is not NOTE printed out in the screen copy mode.
Page 386: List Print
──────────────────────────────────────────────────── 13.6.6 List Print The settings for the various functions made with the STATUS screen, CHANNEL screen etc. can be printed out in list format. Method Screen: Excluding DISPLAY Method While the setting screen (excluding DISPLAY) is displayed, press the PRINT key.
Page 387: External Printer (Color Print)
──────────────────────────────────────────────────── 13.7 External Printer (Color Print) Using the 9559 PRINTER CARD, waveform data can be output on A4-size sheets from the external printer in color or monochrome. PRINT key: Prints out equivalent to 25 divisions waveform data or numerical data. COPY key: Prints out the screen hard copy.
Page 388 ──────────────────────────────────────────────────── Waveform print Screen Hard Copy ──────────────────────────────────────────────────── 13.7 External Printer (Color Print)
Page 389: Chapter 14 Storing Measurement Data
──────────────────────────────────────────────────── Chapter 14 Storing Measurement Data A floppy disk, PC card, MO disk, or connected SCSI devise can be used to store and retrieve measurement and setting data. This chapter explains how to use the SAVE, LOAD, INFO, DELETE and FORMAT commands and how to create a directory and perform other related functions.
Page 390: Floppy Disk
──────────────────────────────────────────────────── 14.1 Floppy Disk ・If a floppy disk is inserted upside down, backwards, or in the wrong direction, CAUTION the floppy disk or the unit may suffer damage. Before shipping the unit, always remove the floppy disk. ・2DD floppy disks formatted in PC9801 640 K-byte format cannot be used. ・Do not remove the floppy disk while the floppy disk unit is operating (the LED on the floppy disk unit is on).
Page 391: Mo Disk (Option)
──────────────────────────────────────────────────── 14.2 MO Disk (Option) ・Avoid operation at above 35℃ as far as possible. (If operated at above 35℃, CAUTION the disk protection function is activated, and it is not possible to save or read data.) ・If a MO disk is inserted upside down, backwards, or in the wrong direction, the MO disk or the unit may suffer damage.
Page 392: Setting The Mo Drive
──────────────────────────────────────────────────── 14.2.1 Setting the MO Drive The internal MO drive can be treated as an MO drive in the PC. This can be selected only when the optional 9607 MO Unit is installed. Method Screen: INTERFACE (SYSTEM4) Method Press the SYSTEM key to call up the SYSTEM4 screen.
Page 393: Pc Card
・When formatting a PC card on a PC, use the FAT-16 format. Formatting a card in FAT-32 format may result in incompatibility problems. ・The following five PC card types can be used in the 8826: flash ATA card, RS-232C interface card, GP-IB card, printer card, and LAN card.
Page 394: Using The Pc Card Slot (Pc Card With A Cable Only)
PCMCIA socket side Locking spring (3) Insert the PC card in the PC card slot on the 8826. Verify that the ▲ mark on the card points in the correct direction as shown below, and make sure that the card is properly seated in the slot. The PC card is keyed to prevent wrong insertion, but exerting excessive force may damage the card or the slot.
Page 395: Scsi Interface
1 ････････････ 25 ・The SCSI cable is not supplied. NOTE ・Check the connection types on both the 8826 and the connected device. Use commercially-available SCSI cables. ──────────────────────────────────────────────────── 14.4 SCSI Interface...
Page 396: Setting The Mo Drive
・Select a SCSI cable with a connector corresponding to that of the disk drive. ・Check that both the 8826 and the MO disk drive are powered off. ・Connect firmly the SCSI connector on the rear panel of the 8826 and the MO disk drive.
Page 397: Setting The Scsi Number
The available value range is 0 to 7. ■ Target ID Set the ID number of the MO drive, which will be connected to the 8826, on the SCSI bus. The ID number of the internal MO drive (optional) is set to 4.
Page 398: Selecting The Media Type
──────────────────────────────────────────────────── 14.5 Selecting the Media Type The media type is specified. Screen FILE Method Method Press the FILE key to call up the FILE screen. Move the flashing cursor to the (media) item, as shown in the figure on the left. Use the function keys to make the selection.
Page 399: Format (Initializing)
Use the function keys to select the MO disk format mode. Normally, the "FORMAT" is used. Use the "FORMAT (phy)" only for disks that cannot be read from the 8826. Selection Selection ：Logical format is enabled. ：Logical format and physical format is enabled.
Page 400 ──────────────────────────────────────────────────── Use the function keys to select the exec. Use the function keys to select whether to execute or not. Selection Selection ：Execute the format procedure. ：Cancel the format procedure. Formatting time (approx.) the MO disk REWRITABLE OVERWRITE 128 MB 7 min 230 MB 10 min...
Page 401: Save
When a multiblock is used, the setup conditions of the use blocks are stored. When a setting state is read into the 8826, it is restored in the unit. (See Section 14.8) Size of recording for the setting state: 512×69 bytes＝35328 bytes (2) Measurement data（MEM, REC, XYC, RMS, FFT, TXT）...
Page 402 ──────────────────────────────────────────────────── (6) Hard copy（BMP） The each screen display of the 8826 can be stored in the bit map file (BMP) format. Color Setting File size Color, Gray Approx. 308,278 bytes Mono, Mono (rev) Approx. 38,462 bytes ・The bit map file is one of the standard graphic type of the...
Page 403: Setting The Saving Items
：The waveform data or FFT TEXT analysis result is saved in text format. Data stored in the text format is not readable by the 8826. ：The settings are saved. ：The evaluation area in memory AREA is saved. ：determines the data to store.
Page 404 ──────────────────────────────────────────────────── Selecting the channel for storing data Use the CURSOR key to move the flashing cursor to the (channel) item, shown in the figure on the left. Use the function keys or the JOG control to select the channel. Selection Selection ：Store data for all displayed channels (displayed data only).
Page 405 If no file name extension (3 characters after period) is entered, the following extensions are automatically assigned, according to the stored data type. Extension Meaning Data load by 8826 Memory recorder binary data file Recorder binary data file RMS recorder binary data file...
Page 406 ──────────────────────────────────────────────────── Executing the saving Use the function key to select the Yes. Selection Selection ：Determines the data to sore. ：Cancel the command to be saved. When the waveform data is selected and the memory segmentation function is used, select block saving. Selection Selection ：In sequential saving, all data, from...
Page 407 × × × × ○ ○: The data is saved to the file. Settings for the 8826 are always enabled during reading. ×: The data is not saved to the file. ：The data is saved to the index file. ────────────────────────────────────────────────────...
Page 408: Text Data Store Example
──────────────────────────────────────────────────── 14.7.2 Text data store example When comment setting is not OFF, the text data are stored as follows. "COMMENT","8826 MEM DATA" : Comment character string, Data type "DATE","03-28-2001" : Date "TIME","10:10:00" : Time "NUM_SIGS", 3 : Number of signals "INTERVAL", 1.000E-06...
Page 409 ──────────────────────────────────────────────────── Example 2 When the data is stored in Recorder function (Recorder function, RMS recorder function, recorder data in Recorder&memory function) "COMMENT","8826 REC DATA" "DATE","01-01-1999" "TIME","10:10:00" "NUM_SIGS",13 "INTERVAL", 1.000E-04 "HORZ_UNITS", "S" "VERT_UNITS", "S", "V", "V", "V", "V", "Bit", "Bit", "Bit", "Bit", "Bit", "Bit", "Bit", "Bit"...
Page 410: Load
・The unit settings or the measurement data are transferred from the media to the memory of the unit. ・When loading measurement data, the channel can be specified. ・Measurement data stored by the 8825 can be loaded into the 8826. Selecting the media to load Screen...
Page 411 ──────────────────────────────────────────────────── Selecting the channel for loading data Use the CURSOR key, function key or the JOG control to select the "load ch". Executing the loading Select either of the following loading methods. Selection Selection ：Deletes the waveform data from the unit and load the new data.
Page 412 "STARTUP.ARE". Save the file to the root directory of the floppy disk or a PC card. The file is read to the 8826 when the equipment is turned on. ・If "STARTUP.SET" is present on both the floppy disk and PC cards, the FD file is used ────────────────────────────────────────────────────...
Page 413 ──────────────────────────────────────────────────── Note on OVERWRITE loading To load the measured data file into the 8826 when it already contains previously measured data, the previous data takes precedence over the new data (in such an event, △ is displayed). Therefore, to reflect all the settings for the waveform data to be loaded, select "REFRESH."...
Page 414: Info
Move the flashing cursor to the (command) item, shown in the figure on the left. Use the function keys to select the INFO. Information about the selected file is displayed. Only the information in the files loaded to the 8826 is displayed. ──────────────────────────────────────────────────── 14.9 INFO...
Page 415: Delete
──────────────────────────────────────────────────── 14.10 DELETE Unit settings or measurement data are deleted from the file on selected media. Screen FILE Method Method Press the FILE key to call up the FILE screen. Select the media. Move the flashing cursor to the (command) item, shown in the figure on the left.
Page 416 ──────────────────────────────────────────────────── Use the function keys to select the "YES". Selection Selection ：Evcutees the data to delete. ：Cancel the command to be deleteed. ──────────────────────────────────────────────────── 14.10 DELETE...
Page 417: Sorting File (Sort)
──────────────────────────────────────────────────── 14.11 Sorting File (SORT) The file screen is sorted by type. The sort order can be selected from file name, date, file size and type (file extension). Screen FILE Method Method Press the FILE key to call up the FILE screen.
Page 418: Operating The Directory
──────────────────────────────────────────────────── 14.12 Operating the Directory 14.12.1 MK DIR (Making a Subdirectory) A subdirectory is created. Screen FILE Method Method Press the FILE key to call up the FILE screen. Select the media. Move the flashing cursor to the (command) item, shown in the figure on the left. Use the function keys to select the MK DIR.
Page 419: Ch Dir (Changing A Directory)
──────────────────────────────────────────────────── 14.12.2 CH DIR (Changing a Directory) A directory is changed. The 8826 provides direct movement only one layer up or down in the directory hierarchy. Screen FILE Method Method Press the FILE key to call up the FILE screen.
Page 420: Rm Dir (Deleting A Directory)
──────────────────────────────────────────────────── 14.12.3 RM DIR (Deleting a Directory) A directory is deleted. Even if there are files and directories in a directory, the directory can be deleted. Screen FILE Method Method Press the FILE key to call up the FILE screen. Select the media.
Page 421: Printing The File List
──────────────────────────────────────────────────── 14.13 Printing the File List Prints a list of files (including directories) displayed on the file screen. The printing destination is selected by the "PRINT OUTPUT" setting. Screen SYSTEM4 - FILE Method Method (1) Setting the output destination. Press the SYSTEM key to call up the SYSTEM4 screen.
Page 422 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 14.13 Printing the File List...
Page 423: Chapter 15 Memory Segmentation Function
──────────────────────────────────────────────────── Chapter 15 Memory Segmentation Function ・This function divides the memory into separate blocks, each of which can be used for waveform recording. ・The memory segmentation function has two modes: sequential save and multi- block. Sequential save function ・The recording length (DIV) has priority over the number of memory blocks. ・Input signal capture is carried out continuously using the trigger, storing waveform data successively in each block.
Page 424: Using The Sequential Save Function (Mem)
──────────────────────────────────────────────────── 15.1 Using the Sequential Save Function (MEM) ・Input signal capture is carried out continuously using the trigger, storing waveform data successively in each block. ・Any block in which an input signal is recorded can be called up on the display. ■...
Page 425 ──────────────────────────────────────────────────── Screen STATUS2 Method Method (1) Select the Memory Segmentation Press the STATUS key to call up the STATUS2 screen. Move the flashing cursor to the position shown in the figure on the left. Press the [SEQUEN]. Selection Selection ：Disable memory segmentation. ：Enable sequential save function.
Page 426 ──────────────────────────────────────────────────── (3) Display block setting use block Move the flashing cursor to the item, as shown in the figure on the left. Use the JOG/SHUTTLE control or the function keys to make the selection. Selection Selection ：Value up. ：Value down. After measurement starts, the displayed block is updated by the recorded block.
Page 427 ──────────────────────────────────────────────────── (6) Setting the follow-up waveform display Waveforms acquired for each block by triggering during the sequential saving process are displayed one by one. (As a result, the dead time is increased.) Move the flashing cursor to the wave display item, as shown in the figure on the left.
Page 428 Trigger mode: SINGLE (MEM) When the STOP key is pressed twice during measurement, the 8826 is forcibly stopped. (Auto printout and auto save are not executed.) (REC&MEM) When the STOP key is pressed once during measurement, the 8826 is forcibly stopped.
Page 429: Using The Multi-Block Function
──────────────────────────────────────────────────── 15.2 Using the Multi-Block Function ・Memory is divided into blocks which can be freely selected by the user for storing measurement data. ・Data stored in any block can be called up on the display. ・Data from different blocks can be overlayed on screen for easy comparison. (it can be printed out) (1) Store in memory (2) Any block can be called up...
Page 430 ──────────────────────────────────────────────────── ・While the multi-block function is being used, the waveform processing NOTE calculation and averaging functions are disabled. ・If the blocks have different recording lengths, the overlap block display is disabled. ・The VIEW key can be used to change the displayed memory block or to call up information about the usage status of memory blocks.
Page 431 ──────────────────────────────────────────────────── (3) Setting the Recording Length Move the flashing cursor to the position shown in the figure on the left. Use the JOG control or the function keys to make the selection. Selection Selection ：Move the cursor up in the selection window.
Page 432 ──────────────────────────────────────────────────── (4) Setting the using block ・Select the number of the memory block for display and recording of the input signal waveform. Move the flashing cursor to the use block item, as shown in the figure on the left. Use the JOG/SHUTTLE control or the function keys to make the selection.
Page 433 ──────────────────────────────────────────────────── (5) Set the ref block. Select a memory block whose waveform data are to be overlaid on screen with the memory block selected for display. The recording start time and time axis range are displayed on the window. Move the flashing cursor to the ref block item.
Page 434 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 15.2 Using the Multi-Block Function...
Page 435: Chapter 16 Waveform Operation Function
──────────────────────────────────────────────────── Chapter 16 Waveform Operation Function 16.1 Waveform Parameter Calculation ・Available for memory recorder function and REC&MEM function. The Memory waveform for the Record & Memory function is performed with the Memory recorder function. ・Parameters that were used for captured waveform data and for data after waveform processing can be determined.
Page 436 ──────────────────────────────────────────────────── Waveform parameter calculation Operating Sequence Setting the Waveform Parameter Calculation setting the Waveform Parameter Calculation Disable parameter calculation. Enable parameter calculation. Setting for parameter calculation result Disable printout Enable printout Setting for parameter calculation result saving Storing is disabled. Stored on floppy disk Stored on PC card SCSI...
Page 437: Making Settings For Waveform Parameter Calculation
──────────────────────────────────────────────────── 16.1.1 Making Settings for Waveform Parameter Calculation Screen STATUS3 (MEM) Method Method Press the STATUS key to call up the STATUS3 screen. Move the flashing cursor to the position shown in the figure on the left. Use the function keys to make the selection.
Page 438 ──────────────────────────────────────────────────── Choose the setting for parameter calculation result printout and saving ・The internal printer can be printed parameter calculation result. ・The parameter calculation results stores a file in the directory currently selected on the file screen as text data. For details on saving, refer to Section 14.7. Screen STATUS3 (MEM) Method...
Page 439 ──────────────────────────────────────────────────── Parameter calculation settings Screen STATUS3 (MEM) Method Method Move the flashing cursor to the position shown in the figure on the left. Use the function keys to make the selection. Up to four parameter calculations (No. 1 - 4) can be set simultaneously. Disable calculation Time to maximum value Rise time...
Page 440: Making Settings For Waveform Parameter Evaluation
──────────────────────────────────────────────────── 16.1.2 Making Settings for Waveform Parameter Evaluation ・Depending on the results of the waveform parameter calculation, a GO (pass) or NG (fail) result is returned. ・Evaluation criteria can be set independently for each of the calculation sets No. 1 - No. 4. Lower limit value Upper limit value NG result...
Page 441: Setting Waveform Parameter Evaluation Go/Ng Stop Mode
──────────────────────────────────────────────────── ・When waveform parameter measurement and waveform evaluation are NOTE carried out simultaneously, the screen displayed waveform evaluation results. Check the results of parameter evaluation using " * " (NG decision) accompanying the figure. Alternatively, a beeping sound can be used for the evaluation instead of the "...
Page 442 Storing measurement data Waveform displays after data corresponding to recording length have been stored in memory. ・When the STOP key is pressed twice during measurement, the 8826 is forcibly stopped. (Parameter calculation are not executed.) Parameter calculation ・Displays "Calculating". ・Displays parameter calculation result on the screen.
Page 443 ──────────────────────────────────────────────────── Parameter calculation of measurement data loaded from media Select the calculating data ・Press the FILE key to call up the FILE screen. Loading from media For details on LOAD, refer to Section 14.8. ・Parameter calculation execute the stored measurement data. Internal memory data ・This setting calculates the measurement data between A and B cursors.
Page 444: Calculating Waveform Data
──────────────────────────────────────────────────── 16.2 Calculating Waveform Data ・Waveform processing is possible only for the memory recorder function and REC&MEM function. The Memory waveform for the Record & Memory function is performed with the Memory Recorder function. ・Processing result are displayed as a waveform. ・Use the A/B cursors (vertical or trace cursor) to specify the processing range for the waveform data.
Page 445 ──────────────────────────────────────────────────── Waveform Processing procedure Defining the Processing Equation Disable waveform processing. Setting the waveform processing Enable waveform processing. Making the processing equation Setting the waveform processing value ･ Operators Enter equation Numerical onstant values Delete equation Copy equation Setting the Channel for Recording NONE Setting the Channel for Recording Processing Results...
Page 446: Preparing For Waveform Processing
──────────────────────────────────────────────────── 16.2.1 Preparing for Waveform Processing Screen STATUS4 (MEM) Method Method Press the STATUS key to call up the STATUS4 screen. Move the flashing cursor to the position shown in the figure on the left. Make the setting with the function keys. Selection Selection ：Disable waveform processing.
Page 447: Defining The Processing Equation
──────────────────────────────────────────────────── 16.2.2 Defining the Processing Equation Sixteen processing equations (Z1 - Z16) can be defined. Making the processing equation Screen STATUS4 (MEM) Method Method Press the STATUS key to call up the STATUS4 screen. Move the flashing cursor to " Z1 to Z16". Use the function keys to select the "enter eqn".
Page 448 ──────────────────────────────────────────────────── When the equations have been input, press key. If there are any syntax F5 [ exit ] errors in the equations (incomplete bracketing, missing " ", more than eight MOV, SLI, DIF, DIF2, INT, INT2 operators, etc.), a "?" is displayed, and the cursor rests on the error, so that the problem can be corrected.
Page 449 ──────────────────────────────────────────────────── Entering the constant values Screen STATUS4 (MEM) Method Method Move the flashing cursor to the position shown in the figure on the left. Use the function keys to select the enter. The setting range is -9.9999E+29 to +9.9999E+29 (exponent: -29 to +29). Selection Selection ：Enter the constant values.
Page 450: Copying An Equation
──────────────────────────────────────────────────── 16.2.3 Copying an Equation An equation to which an equation number has been assigned (copy source) can be copied to another equation number (copy target). Screen STATUS4 (MEM) Method Method Move the flashing cursor to one of the Z1 - Z16 items.
Page 451: Setting The Channel For Recording Processing Results
──────────────────────────────────────────────────── 16.2.4 Setting the Channel for Recording Processing Results ・The calculation result of equations Z1 - Z16 can be recorded and displayed in a specified channel. ・Processing results can be recorded also in channels where no input unit is installed (but the range of the "number of channels in use" setting cannot be exceeded).
Page 452: Setting The Display Scale And Floating Decimal Point
──────────────────────────────────────────────────── 16.2.5 Setting the Display Scale and Floating Decimal Point ・Display scale can be set automatically or manually. ・The channel selected for recording is automatically set to variable display. For details on variable function, refer to Section 9.6.1. Screen STATUS4 (MEM) Method Method Press the STATUS key to call up the...
Page 453 ──────────────────────────────────────────────────── Automatic setting After calculation, the upper and lower limit is determined from the result, and the variable display settings are made accordingly. Depending on the type of calculation, automatically display scale setting may not be satisfactory. In such a case, use the manual setting procedure. Manual setting Use the variable display setting function on the CHANNEL2 screen to set the upper and lower limit.
Page 454: Perform Waveform Processing
Storing measurement data Waveform displays after data corresponding to recording length have been stored in memory. ・When the STOP key is pressed twice during measurement, the 8826 is forcibly stopped. (Waveform calculation are not executed.) Waveform calculation ・Displays "Waveform calculating".
Page 455 ──────────────────────────────────────────────────── Waveform processing of data in internal memory or media Select the calculating data ・Press the FILE key to call up the FILE screen. Loading from media For details on LOAD, refer to 14.8. ・Waveform calculation execute the stored measurement data. Internal memory data ・This setting calculates the measurement data between A and B cursors.
Page 456: Waveform Go/Ng Evaluation
（excluding the data sampling time, display time and FFT calculation time）・If a high setting is chosen for recording length or if compression is used, the evaluation cycle becomes slower. ・Waveform area made by 8825 cannot be used 8826. ──────────────────────────────────────────────────── 16.3 Waveform GO/NG Evaluation...
Page 457 ──────────────────────────────────────────────────── ・On the waveform evaluation screen, A/B cursors can be used, but a partial printout cannot be made. ・When the waveform evaluation is specified, data equivalent to one screen (25 divisions) is printed out. When waveform data having a recording length of more than 25 divisions is to be printed out, the time axis should be compressed (MEM).
Page 458: Setting The Evaluation Area
──────────────────────────────────────────────────── 16.3.1 Setting the Evaluation Area To evaluate the waveforms, a evaluation area is required. Two methods are available: one is to load the already created evaluation area and settings, and the other is to create a new evaluation area. Loading the already created evaluation area Screen FILE...
Page 459 ──────────────────────────────────────────────────── Creating a new evaluation area Screen STATUS1 (MEM) Method Method STATUS2 (FFT) Press the STATUS key to call the STATUS1 screen (MEM) or STATUS2 screen (FFT). Move the flashing cursor to the position shown in the figure on the left. Use the function key to select the Edit.
Page 460: Setting The Waveform Evaluation Mode
──────────────────────────────────────────────────── 16.3.2 Setting the Waveform Evaluation Mode Screen STATUS1 (MEM) Method Method : STATUS2 (FFT) Move the flashing cursor to the position shown in the figure on the left. Make the setting with the function keys. Selection Selection ：Disable waveform evaluation. ：Return NG if any part of the waveform leaves the evaluation area.
Page 461: Setting The Go/Ng Stop Mode
──────────────────────────────────────────────────── 16.3.3 Setting the GO/NG Stop Mode When waveform evaluation is enabled (OUT or ALL OUT is selected), the "Stop Conditions" menu appears. Specify which evaluation option, GO or NG, should be used to stop the recording. Screen STATUS1 (MEM) Method Method : STATUS2 (FFT)
Page 462: Creating The Evaluation Area
──────────────────────────────────────────────────── 16.3.4 Creating the Evaluation Area ・The graphics editor serves to create the waveform evaluation area. ・The area is created by drawing it on screen. Screen STATUS1 (MEM) Method Method : STATUS2 (FFT) Move the flashing cursor to the comparison item.
Page 463: Editor Command Details
──────────────────────────────────────────────────── 16.3.5 Editor Command Details paint Function key display: 1/3 ：Fills in an enclosed area. Press the [ paint ]. Use the CURSOR keys to move the mark to the area to be filled in. Pressing accelerates the movement of the mark. If the area is not completely enclosed, adjacent areas will also be filled in.
Page 464 ──────────────────────────────────────────────────── parallel Function key display: 1/3 ：Shifts the line pattern in parallel direction, to create an area. Press the [ parallel]. Set the amount of shift. ・Use the function keys or the JOG control to set the value. ・Use the [ move csr ] key (or the CURSOR keys) to set the shift amount in the up/down/right/left directions.
Page 465 ──────────────────────────────────────────────────── line Function key display: 1/3 ：Serves to draw a straight or polygonal line. Press the [ line ]. Use the CURSOR keys to move the mark to the start point of the line. Pressing accelerates the movement of the mark. If the area is not completely enclosed, adjacent areas will also be filled in.
Page 466 ──────────────────────────────────────────────────── erase Function key display: 1/3 ：Serves to erase unwanted sections. Press the [ erase ]. Use the CURSOR keys to move the mark to the start point of the section to be erased. Pressing accelerates the movement of the mark. Press the [ set ] key.
Page 467 ──────────────────────────────────────────────────── reverse Function key display: 2/3 ：Reverses the colors of a filled-in area and the surrounding area. Press the [ reverse ]. Displays filled in area in reverse. all clr Function key display: 2/3 ：Clears the entire editor screen. Press the [ all clear ].
Page 468 ──────────────────────────────────────────────────── clear Function key display: 2/3 ：Clears a specified rectangular area of the editor screen. Press the [ clear ]. Use the CURSOR keys to move the mark to the start corner of the area to be erased. Pressing accelerates the movement of the mark. Press the [ set ].
Page 469 ──────────────────────────────────────────────────── save function key display: 3/3 ：Serves to store the created area in memory. After an area has been stored, it can be used for waveform evaluation. Press the [ save ] key. Saving the media, refer to Section 14.7. end function key display: 3/3 ：Terminates the editor.
Page 470 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 16.3 Waveform GO/NG Evaluation...
Page 471: Chapter 17 External Input/Output Terminals
External Input/Output Terminals 17.1 Connecting the Terminals Maximum input voltage ratings for the input/output terminals of the 8826 WARNING are shown below. To avoid the risk of electric shock and damage to the unit, take care not to exceed these ratings.
Page 472 ──────────────────────────────────────────────────── Recommended wire Single strand: 1.0 mm dia. (AWG #18) Multi-strand: 0.75 mm Usable limits Single strand: 0.3 to 1.0 mm dia. (AWG #26 to #18) Multi-strand: 0.3 to 0.75 mm (AWG #22 to #20) Strand diameter: minimum 0.18 mm Standard insulation stripping length: 10 mm φ1.0 mm (can be used 0.3 to 1.0 mm dia.)
Page 473: External Trigger Input Terminal [Ext Trig]
17.2 External Trigger Input Terminal [EXT TRIG] ・An external signal can be used as trigger source. ・Several 8826 units can be synchronized for parallel operation. Signal input method ・Short the terminal to ground, or input a pulse signal (High level: 2.5 to 5.0 V, Low level: 0 to 1.0 V) or a square wave signal.
Page 474: External Trigger Output Terminal [Trig Out]
──────────────────────────────────────────────────── 17.3 External Trigger Output Terminal [TRIG OUT] ・When triggering occurs, a signal is output from this terminal. ・Several 8826 units can be synchronized for parallel operation. Trigger output signal Signal type Open-collector signal, active Low High level: 4.0 to 5.0 V...
Page 475: External Sampling Terminal [Ext Smpl]
──────────────────────────────────────────────────── 17.4 External Sampling Terminal [EXT SMPL] An external signal can be used to set the sampling rate. Signal input method ・Short the terminal to ground, or input a pulse signal (High level: 2.5 to 5.0 V, Low level: 0 to 1.0 V) or a square wave signal. ・Triggering is activated at the rising edge.
Page 476: External Print / Start / Stop Terminal
──────────────────────────────────────────────────── 17.5 External Print / Start / Stop Terminal PRINT terminal Printing starts when a signal is input here. terminal Measurement starts when a signal is input here. START terminal Measurement and printing stop when a signal is input STOP here.
Page 477: Go/Ng Evaluation Output Terminal
──────────────────────────────────────────────────── 17.6 GO/NG Evaluation Output Terminal When waveform evaluation or waveform parameter evaluation is used, a signal is output from these connectors when the result is GO (pass) or NG (fail). Output signal Signal type Open-collector signal, active Low Output voltage range High level: 4.0 to 5.0 V, Low level: 0 to 0.5 V Maximum input voltage -20 to +30 V, max.
Page 478 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 17.6 GO/NG Evaluation Output Terminal...
Page 479: Chapter 18 Specifications
Frequency analysis 32 analog channels 32 logic channels Number of channels (maximum) (The logic channels are standard equipment for the 8826, common ground with main unit) Memory capacity Standard: 16 M words Expansion: 64 M words (added 48 M words) Maximum sampling period 1 μs (all channels simultaneously) External sampling period（2 μs）...
Page 480 ──────────────────────────────────────────────────── Insulation resistance Between the main unit and the power supply, between the input units and the main unit, and between the input units: At least 100 MΩ/500 VDC Dielectric strength One minute at 1.35 kVAC between the main unit and the power supply One minute at 3.7 kVAC between the input units and the main unit, and between the input units...
Page 481 ──────────────────────────────────────────────────── Display Display language Japanese/English (selectable) Screen 10.4 inch TFT color LCD display (640 × 480 dots) (TFT color LCDs characteristically have a few defective pixels that do not always light, or that remain lit. We do not consider the presence of six or fewer such defects to indicate a damaged or faulty display.
Page 482: External Data Storage And Interface
──────────────────────────────────────────────────── 18.2 External Data Storage and Interface Floppy Disk Device 3.5-inch floppy disk drive ・1.44 MB (2HD) (IBM PC/AT compatible or NEC PC-9801 series with 3- Capacity mode drive) ・1.2 MB (2HD) (NEC PC-9801 series) ・720 KB (2DD) (IBM PC/AT compatible) MS-DOS format Data format (MS-DOS is the registered trademark of Microsoft Corporation.)
Page 483 ──────────────────────────────────────────────────── Interface GP-IB ・Complies with IEEE 488.2-1987 ・Remote control including input unit is possible. ・The optional 9558 GP-IB CARD is used. RS-232C ・Complies with EIA RS-232C ・Remote control including input unit is possible. ・The optional 9557 RS-232C CARD is used. ・Complies with IEEE 802.3i (Ethernet 10BASE-T) ・Remote control including input unit is possible.
Page 484: Trigger Unit
──────────────────────────────────────────────────── 18.3 Trigger Unit Trigger Method Digital comparison Trigger modes Function Available trigger modes Memory recorder Single, repeat, auto Recorder, RMS recorder Single, repeat Recorder & Memory Single, repeat, timer Single, repeat, auto Trigger source CH1 to CH32, logic CHA to CHH ・External trigger (With an external trigger, the triggering occurs on a falling edge of 2.5 V, or when the terminals are shorted together.) ・Manual trigger...
Page 485: Memory Recorder Function
──────────────────────────────────────────────────── 18.4 Memory Recorder Function Time axis 100, 200, 500μs/DIV 1, 2, 5, 10, 20, 50, 100, 200, 500 ms/DIV 1, 2, 5, 10, 30 s/DIV 1, 2, 5 min/DIV , EXT. 100 points/DIV Time axis resolution Sampling period 1/100 of the time axis Recording length ・Standard (16 M words) 25,50,100,200,500,1000,2000,5000,10000...
Page 486: Recorder Function
──────────────────────────────────────────────────── 18.5 Recorder Function Time axis , 50 , 100 , 200 , 500 ms/DIV 1, 2, 5, 10, 30 s/DIV 1, 2, 5, 10, 30 min/DIV 1 h/DIV 100 points/DIV (with the printer) Time axis resolution Sampling period 1、10、100μs、1、10、100 ms (Can be selected, from 1/100 of the time axis setting) ・Standard (16 M): 25,50,100,200,500,1000,2000 DIV,CONT Recording length...
Page 487: Rms Recorder Function
──────────────────────────────────────────────────── 18.6 RMS Recorder Function Time axis 5, 10, 30 s/DIV 1, 2, 5, 10, 30 min/DIV 1 h/DIV 100 points/DIV (with the printer) Time axis resolution Number of channel Analog 32 ch + logic 32 ch 20 rms data/s (200 μs fixed) Sampling period RMS accuracy ±3% f.s.
Page 488: Recorder & Memory Function
──────────────────────────────────────────────────── 18.7 Recorder & Memory Function Time axis ・Recorder 20, 50, 100, 200 ms/DIV (display only) 500 ms/DIV 1, 2, 5, 10, 30 s/DIV 1, 2, 5, 10, 30 min/DIV 1 h/DIV ・Memory Recorder 100, 200, 500 μs/DIV 1, 2, 5, 10, 20, 50, 100, 200, 500 ms/DIV 1, 2, 5, 10, 30 s/DIV 1, 2, 5 min/DIV 100 points/DIV...
Page 489: Fft Function
──────────────────────────────────────────────────── 18.8 FFT Function FFT channel mode 1 ch FFT 2 ch FFT range setting 133 mHz∼400 kHz, EXT. Dynamic range 72 dB (logical value) 1000, 2000, 5000, 10000 points Number of sampling points Frequency resolution 1/400, 1/800, 1/2000, 1/4000 Automatic cutoff frequency selection linked to frequency range Antialiasing filter Analysis channel setting...
Page 490: Auxiliary Functions
──────────────────────────────────────────────────── 18.9 Auxiliary Functions Computation functions (MEM) Waveform processing calculations* Arithmetic operations, absolute value, exponents, common logarithms, square roots, moving average, 1st and 2nd derivatives, 1st and 2nd integrals, parallel displacement on time axis, trigonometric functions, reverse trigonometric functions 16 arbitrary operational equations: Calculations are possible up to a recording length that corresponds to one fourth of the memory capacity.
Page 491: Others
──────────────────────────────────────────────────── 18.10 Others Comment printing Function, channel, Input range, Zero position, Trigger time, DIV and other information can be printed. Comment input function Provided Cursor measurement Time difference, voltage difference or number of cycles between cursors A function and B, voltage at each cursor, time from trigger Scaling function Specifiable for each channel Display copy function...
Page 492: System Operation
──────────────────────────────────────────────────── 18.11 System Operation System operation is explained according to the block diagram. (1) All system operations are controlled by a 32-bit RISC CPU. (2) The input units incorporates high-speed 12-bit A/D converters which are connected to the main unit via a photocoupler integrated in each input unit. Each channel has its own power supply, to assure electrical isolation from the main unit.
Page 493: Maximum Recording Length For Time Axis Settings
──────────────────────────────────────────────────── 18.12 Maximum Recording Length for Time Axis Settings ■ Memory Recorder Function: Standard (16 M) Max. recording length Time axis Sampling 32 ch 16 ch 8 ch 4 ch range /DIV period 5000 DIV 10000 DIV 20000 DIV 40000 DIV 100μs 1.00μs 500ms...
Page 494 ──────────────────────────────────────────────────── Recorder Function ■ Approximate Time axis recording time on Time axis range Chart speed one roll (30 m) of resolution recording paper 20ms/DIV 20mm/s(*1) 1min 20(*1) 25min 20(*1) 5min 20(*1) 10min 25min 1s/DIV 50min 1hour 40min 4hour 10min 100 points /DIV 8hour 20min 20mm/min 1DAY 1hour...
Page 495: Memory Capacity And Recording Length
──────────────────────────────────────────────────── 18.13 Memory Capacity and Recording Length Memory capacity and recording length after memory expansion with 9599 MEMORY BOARD. Memory Recorder Function ■ Number of divisions per channel Card capacity When 4 When 8 When 16 When 32 channel is in use channel is in use channel is in use channel is in use...
Page 496 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 18.13 Memory Capacity and Recording Length...
Page 497: Chapter 19 Logic And Analog Inputs
Chapter 19 Logic and Analog Inputs 19.1 Logic Inputs The 8826 has separate inputs for eight probes, but the ground lines of WARNING these inputs are not isolated from each other and from the frame ground of the unit (common ground). If voltage having a different ground level is input, a short circuit will occur, depending on the probe type.
Page 498: 9320 Logic Probe
──────────────────────────────────────────────────── 19.1.1 9320 LOGIC PROBE The 9320 is a logic probe with indicator. It is connected to the logic input unit for the 8800 Series MEMORY HiCORDER. It is equipped with a selector for each channel, so that the input type can be switched between digital input and contact input for each channel.
Page 499: 9321 Logic Probe
──────────────────────────────────────────────────── 19.1.2 9321 LOGIC PROBE The 9321 is a logic probe with indicator. It is connected to the logic input unit for the 8800 Series MEMORY HiCORDER. This unit detects presence of AC or DC voltage, making it possible to measure the operation timing of relay sequence circuits.
Page 500: Analog Inputs
──────────────────────────────────────────────────── 19.2 Analog Inputs Measurement Errors Caused by Signal Source Internal Resistance ・If the signal source impedance is higher than the input impedance of the unit, a measurement error will occur. ・The input impedance of the 8936 ANALOG UNIT is 1 MΩ. If the signal source impedance is 1 kΩ, an error of about 0.1% will occur.
Page 501: 8936 Analog Unit
──────────────────────────────────────────────────── 19.2.1 8936 ANALOG UNIT Accuracy at 23℃±5℃, 35% to 85%RH after zero adjustment after 30-minute warming-up time Accuracy guaranteed for 1 year. 5, 10, 20, 50, 100, 200, 500 mV/DIV, 1, 2, 5, 10, 20 V/DIV Measurement ranges DC amplitude accuracy ±0.4%f.s.
Page 502: 8937 Voltage/Temp Unit
──────────────────────────────────────────────────── 19.2.2 8937 VOLTAGE/TEMP UNIT Accuracy at 23℃±5℃, 35% to 85%RH after zero adjustment after 60-minute warming-up time Accuracy guaranteed for 1 year. Voltage input Measurement ranges 500μV/DIV, 1, 2, 5, 10, 20, 50, 100, 200, 500 mV/DIV 1, 2 V/DIV -50 to 150% of the recording width (in full-size representation of the Zero position setting range vertical axis)
Page 503 ──────────────────────────────────────────────────── Reference contact ±0.1% f.s.±1.5℃ (with internal reference contact compensation and input terminal in state of temperature equilibrium) compensation accuracy Temperature characteristic ±0.05%f.s./℃ (sensor: K, E, J, T, N, with drift compensation mode OFF) ±0.25%f.s./℃ (sensor: R, S, B, with drift compensation mode OFF) ±0.04%f.s./℃...
Page 504: 8938 Fft Analog Unit
──────────────────────────────────────────────────── 19.2.3 8938 FFT ANALOG UNIT Accuracy at 23℃±5℃, 35% to 85%RH after zero adjustment after 60-minute warming-up time Accuracy guaranteed for 1 year. Number of channels 2 channels Measurement ranges 5, 10, 20, 50, 100, 200, 500 mV/DIV, 1, 2, 5, 10, 20 V/DIV DC amplitude accuracy ±0.4%f.s.
Page 505: 8939 Strain Unit
──────────────────────────────────────────────────── 19.2.4 8939 STRAIN UNIT Accuracy at 23℃±5℃, 35% to 85%RH after auto-balancing, after 60-minutes warming-up time. Accuracy guaranteed for 1 year 2 channels Number of channels Appropriate adapter Strain gauge adapter, Bridge resistan e: 120 Ω to 1 kΩ Bridge voltage 2±0.05 Ｖ...
Page 506: 8940 F/V Unit
──────────────────────────────────────────────────── 19.2.5 8940 F/V UNIT Accuracy at 23℃±5℃, 35% to 85%RH after zero adjustment after 60-minute warming-up time Accuracy guaranteed for 1 year. 12 bit A/D resolution Vertical axis resolution 80 LSB/DIV Measurement function Frequency measurement, Count, Duty, Voltage measurement,Current measurement Maximum sampling speed 1μs...
Page 507 ──────────────────────────────────────────────────── Frequency・Count・Duty Measurement Frequency ranges 0.05, 0.1, 0.5, 1,5, 10, 50, 100, 500 Hz/DIV 1, 5 kHz/DIV 5, 10, 50, 100, 500 r/min/DIV Power source frequency ranges: 50 Hz (40 to 60 Hz), 60 Hz (50 to 70 Hz) Frequency accuracy ±0.2%f.s.（except 100 kHzf.s.
Page 508: 8947 Charge Unit
──────────────────────────────────────────────────── 19.2.6 8947 CHARGE UNIT Accuracy at 23℃±5℃, 35% to 85%RH after zero adjustment after 60-minute warming-up time Accuracy guaranteed for 1 year. 2 channels (switchable) Number of input channels Any of the following can be selected: Charge input, input from preamp, voltage input or individual channels Input type Unbalanced input (floating between inputs, floating between input and...
Page 509 ──────────────────────────────────────────────────── Charge Input Compatible converter Charge-output type piezoelectric accelerator pickup sensor 0.1 to 10 pC/(m/s Measurement sensitivity Measurement range 2,5,10,20,50,100,200,500,1k,2k,5k,10 km/s /DIV （Measurement sensitivity: 0.1 to 0.25 pC/(m/s )） /DIV 1,2,5,10,20,50,100,200,500,1k,2k,5 km/s （Measurement sensitivity: 0.251 to 0.5 pC/(m/s )） 500m,1,2,5,10,20,50,100,200,500,1k,2 km/s /DIV （Measurement sensitivity: 0.501 to 1.0 pC/(m/s )）...
Page 510 ──────────────────────────────────────────────────── Voltage input Measurement range 500μ,1m,2m,5m,10m,20m,50m,100m,200m,500m,1,2 V/DIV DC amplitude accuracy ±0.4%f.s. Zero position setting range ±0.15%f.s. Temperature characteristic Gain: ±0.02%f.s./℃, zero position: ±0.03%f.s./℃ DC to 400 kHz +1/-3 dB（DC coupling） Frequency characteristic 1 Hz to 400 kHz +1/-3 dB（AC coupling, low-end cutoff frequency 1Hz± 50%）...
Page 511: Chapter 20 Maintenance And Service
──────────────────────────────────────────────────── Chapter 20 Maintenance and Service 20.1 Maintenance and Inspection ■ To ensure the safe operation of this unit, perform maintenance regularly. ・If the unit has been subject to moisture, or if oil and dust have accumulated in the unit interior, the danger of electrical shock or fires resulting from the deterioration of insulation increases greatly.
Page 512 ──────────────────────────────────────────────────── ■ Printer Head Cleaning In normal use, the printer does not require periodic maintenance. However, depending on usage conditions, the thermal head may become contaminated by dust or paper scraps. If the print seems light or if there are dropped sections, clean the head as described below.
Page 513: Unit Replacement Procedure
・Install the units by reversing the procedure for removal. (1) Remove the connector cables from all input units. (2) Power off the 8826 main unit, and disconnect the power cord. (3) Remove the two fixing screws with a Phillips screwdriver, as shown in the figure below.
Page 514: Adding The 9599 Memory Board
(1) Remove the connector cables and thermocouples from all input units. (2) Power off the 8826 main unit, and disconnect the power cord. (3) Using a Phillips-head screwdriver, remove the four bolts from the back plate on the unit bottom panel.
Page 515: Removing The Battery Before Discarding The Unit
・The 8826 incorporates a lithium battery for memory backup. ・Before final disposal of the 8826, remove the battery as described below. (1) Verify that the power is switched OFF. (2) Disconnect all connector cables, the power cord and thermocouples.
Page 516: Troubleshooting
──────────────────────────────────────────────────── 20.5 Troubleshooting If the unit does not seem to operate normally, check the following points before requesting service. Problem Check Is power cord connected properly? LED does not light when the unit is turned on. Is the "Pretrigger standby" message displayed? There is absolutely no variation in (When pretriggering is activated, triggering does not the recorded waveform.
Page 517: Chapter 21 Appendix
──────────────────────────────────────────────────── Chapter 21 Appendix 21.1 Error Messages The unit produces two levels of message to indicate problems. These are distinguished as follows. ■ Error messages ・The "ERROR" indication appears at the bottom of the screen, followed by the message. This remains until the cause of the error is removed, or the STOP key is pressed.
Page 518 WARNING 71：Cannot load ・Data cannot be loaded, because it is not a set of data （not 8826 data） created by the 8826. ・The floppy disk is not a correctly formatted MS-DOS WARNING 72：Illegal format． disk, or is a 2DD, 640 KB format disk.
Page 519 ──────────────────────────────────────────────────── WARNING 216：MO drive selected in auto- ・MO drive selected in auto-save, therefore SCSI cannot save. be selected. WARNING 217：SCSI selected in auto- ・Connected SCSI devise selected in auto-save, therefore save. MO disk cannot be selected. WARNING 300：Cannot START. ・Cannot start measurement from SYSTEM screen. （SYSTEM）...
Page 520 ・The IP of the server (that runs the 9333) is not specified address. correctly. WARNING 624：LAN: Can not connect to ・The 8826 cannot connect to the PC that runs the 9333. server. Check the connection environment. WARNING 625：LAN: Can not connect to ・The 8826 cannot connect to the 9333.
Page 521 ──────────────────────────────────────────────────── WARNING 626：LAN: Connection timed ・Check the connection environment. out. WARNING 627：LAN: Transfer was ・Data transmission is interrupted by the <STOP> key or aborted. from the 9333. ・Check the connection environment. WARNING 628：LAN: Network error. WARNING 629：LAN: Server not found or ・Check whether the DNS server is running or set up DNS failed.
Page 522: Glossary
Waveform expressed as High and Low level Logic-level Formatting by which necessary information suitable for the Logical format 8826 is written to physically formatted disks. Filter that passes through only signals below a certain Low-pass filter frequency A device for storing digital data Memory Personal computer operating system.
Page 523 ──────────────────────────────────────────────────── Probe Signal line for supplying the signal to the input Abbreviation of (voltage) "potential transformer" Total amount of sampling data expressed as number of Recording length increments When thermocouples are used, the temperature difference Reference junction between the object and the measuring equipment terminal is compensation measured.
Page 524: Reference
──────────────────────────────────────────────────── 21.3 Reference 21.3.1 Sampling ・The 8826 converts the input signal to a digital value, then carries out all internal processing digitally. This process of converting an analog signal to digital values is termed sampling. ・Sampling measures the magnitude of the signal at fixed time intervals (sampling periods).
Page 525: Measurement Limit Frequency
──────────────────────────────────────────────────── 21.3.3 Measurement Limit Frequency ・As a general rule, to ensure that sampling catches the peaks of a typical sine wave input on the display, more than 25 samples are required for each input cycle. ・The measurement limit frequency changes depending on the time axis range.
Page 526: Recorder Function
──────────────────────────────────────────────────── 21.3.4 Recorder Function ・One division is equal to 100 samples. ・One piece of sample data collected using the recorder function contains the maximum and minimum voltage obtained in the set sampling period. Therefore, this data is of a certain width. 1 2 3 4･･･････...
Page 527: Rms Recorder Function
──────────────────────────────────────────────────── 21.3.5 RMS Recorder Function ・For the RMS recorder function, the sampling period is fixed to 20 RMS value data items per second. ・One division is equal to 100 samples. ■ Calculate one RMS value Sample the 50 Hz or 60 Hz waveforms at 141 V 200μs and calculate one RMS value item using two-period data.
Page 528: Averaging Equations
──────────────────────────────────────────────────── 21.3.6 Averaging Equations For time axis averaging, summing averaging is synchronized by the trigger. If trigger synchronization is not performed, the results will be meaningless. In the FFT function, unlike time axis averaging, results are valid also if no trigger synchronization is used.
Page 529: 2-Point Method Scaling Equation
──────────────────────────────────────────────────── 21.3.7 2-point Method Scaling Equation )/(V Y ={ ( SC - SC )/(V )} X + { ( V ×SC ×SC ：Voltage high point ：Scaling high point ：Voltage low point ：Scaling low point The ranges for the parts enclosed in dotted lines are as follows. ≦｛...
Page 530: Parameter Calculation Details
──────────────────────────────────────────────────── 21.3.8 Parameter Calculation Details (1) Average value Calculates the average value (V) of the waveform data. 【 Equation 】 Σ di/n i = 1 AVE： average value n： number of data samples di： i-th data of the source channel (2) RMS value Calculates the RMS (effective) value (V) of the waveform data.
Page 531 ──────────────────────────────────────────────────── (8) Period (9) Frequency ・Displays the period (s) and frequency (Hz) of the signal waveform. ・The calculation is performed by determining the middle point of the signal amplitude and then measuring the interval from the point when that level is crossed (in rising or falling direction) to the point when it is next crossed.
Page 532 ──────────────────────────────────────────────────── (13) Area value ・Calculates the area bordered by the signal waveform and the zero position (potential 0 V). ・If the A/B cursors (vertical, trace) are used, the area between the cursors is calculated. 【 Equation 】 Σ l di l ･h i = 1 S：...
Page 533: Details On Operators
──────────────────────────────────────────────────── 21.3.9 Details on Operators This section describes the operators used in waveform operation. The parameter "b " shows the operational result, and "d " shows the source channel, respectively, in which "i" indicates the serial number of data. (1) The four arithmetical operations (＋, ー, ＊, ／) According to the operators set, the four arithmetical operations are performed.
Page 534 ──────────────────────────────────────────────────── (8) Differentiation once (DIF) (9) Differentiation twice (DIF2) ・1st and 2nd differential are calculated using the 5th-order Lagrange interpolation equation, whereby data from a range of five surrounding points are used to determine the value of the current point. ・Data corresponding to sample time t are taken as d and used for...
Page 535 ──────────────────────────────────────────────────── 【Equation for 2st integral】 Point t Point t = (I )h/2 = (I )h/2 + (I )h/2 ＝ II + (I )h/2 Point t ↓ Point t = II + (I )h/2 to II ：processing result data (12) Sine (SIN) 【...
Page 536: Fft Function
──────────────────────────────────────────────────── 21.3.10 FFT Function FFT stands for Fast Fourier Transformation, which is a calculation method used to decompose a time-domain waveform into frequency components. By performing FFT calculation, various calculations can be performed. Concept of time domain and frequency domain The signals measured by this memory recorder have values which correspond to time, that is the signals are functions of time.
Page 537 ──────────────────────────────────────────────────── Fourier transformation and the Inverse Fourier transformation The following equations define the Fourier transformation and the Inverse Fourier transformation. F(ω) = |f(t)| = f(t)･exp(-jωt)dt f(t) = |F(ω)| = F(ω)･exp(jωt)dω The function F(ω)generally results in a complex number, and can be expressed as follows.
Page 538 ──────────────────────────────────────────────────── Application of Fourier transform (transfer function, unit-impulse response) As an application of Fourier transform, this section describes a steady-state response in a static linear system. h(t) fin(t) fout(t) Input Output H(ω) Fout(ω) Fin(ω) Stationary Linear System fin(t): time function of input (source signal) fout(t): time function of output (response function) h(t): unit impulse response of linear system t ,τ: time...
Page 539 ──────────────────────────────────────────────────── Aliasing When the frequency of the signal to be measured approaches the sampling frequency, beyond a certain point the measured signal frequency will be lower than the actual signal frequency. In such a case, frequency components that do not exist will appear in the waveform along the frequency axis. This phenomenon is called aliasing, and it occurs if sampling is carried out at a frequency lower than the so-called Nyquist frequency determined by Nyquist’s sampling theorem.
Page 540 1/2 of the sampling frequency. Such a low-pass filter is called an anti-aliasing filter. ・The 8938 FFT ANALOG UNIT incorporates an anti- aliasing filter and therefore allows the 8826 to perform FFT analysis without being subject to aliasing. (1) When an anti-aliasing filter is not used.
Page 541 ──────────────────────────────────────────────────── (2) When an anti-aliasing filter is used. The aliasing artifacts are removed beautifully. The spectral waveform in the graph is the actual spectrum. Because of the rapid decay characteristic of the anti-aliasing filter, the square wave edges exhibit ringing. ■...
Page 542 ・To minimize the leakage error, a suitable window should be chosen which matches the type of input signal. ・Possible window types include rectangular, Hanning, exponential, flat-top, minimum, force, etc. In the 8826, three window functions (rectangular, Hanning, exponential) are available. ・Generally, the rectangular window function is most useful for single waveforms, the Hanning window function for continuous waveforms, and the exponential window function for attenuated waveforms.
Page 543 ──────────────────────────────────────────────────── ・ Rectangular window Stored waveform Input waveform Waveform assumed by FFT processing Rectangular window Waveform after window processing ──────────────────────────────────────────────────── 21.3 Reference...
Page 544 ──────────────────────────────────────────────────── ・ Hanning window Input waveform Waveform assumed by FFT processing Hanning window Waveform after window processing ・ Exponential window Input waveform Waveform assumed by FFT processing Exponential window Waveform after window processing ──────────────────────────────────────────────────── 21.3 Reference...
Page 545: File Size
──────────────────────────────────────────────────── 21.4 File Size 21.4.1 Size of a Waveform File (Binary data) ■ In the memory recorder function (Binary data) Size of a file = header + data Size of a header = 512×(15 + number of analog channels + number of logic probes) Size of a data = (2×number of analog channels + (number of logic probes +1) / 2) ×( recording length (DIV) ×...
Page 546 ──────────────────────────────────────────────────── ■ In the Recorder and RMS recorder functions (Binary data) Size of a file = header + data Size of a header = 512×(15 + number of analog channels + number of logic probes) Size of a data = (4×number of analog channels + number of logic probes) ×( recording length (DIV) ×...
Page 547: Size Of A Waveform File (Text Data (Reference Value))
──────────────────────────────────────────────────── 21.4.2 Size of a Waveform File (Text data (Reference value)) ■ In the memory recorder function (text data) (Reference value) Size of a file = header + data Size of a header = 170 + 64×number of analog channels + 165 ×number of logic probes Size of a data =（14 +26×number of analog channels + 18×number of logic probes）...
Page 548: Size Of A Fft File (Reference Value)
──────────────────────────────────────────────────── ■ In the Recorder and RMS recorder functions (text data) (Reference value) Size of a file = header + data Size of a header = 170 + 64×number of analog channels + 165 ×number of logic probes Size of a data =（14 +26×number of analog channels + 18×number of logic probes） ×(recording length (DIV)×100 +1) Number of logic probes：0 Number of analog channels...
Page 549: Real-Time Save Files Size (Memory Data)
──────────────────────────────────────────────────── 21.4.4 Real-Time Save Files Size (Memory data) Size of a file ＝ header + data Size of a header ＝ 512×(15 ＋ number of analog channels ＋ number of logic probes) Size of a data＝ 2×number of analog channels×(recording length (DIV)×100＋1) Saved channel number: When saving channels, each analog channel (up to 8) has a corresponding logic channel, and such pairs are regarded as single channels.
Page 550: Waveform Viewer (Wv)
Never use abrasives or solvent cleaners. ・Hioki shall not be held liable for any problems with a computer system that arises from the use of this CD-R, or for any problem related to the purchase of a Hioki product.
Page 551: Starting The Waveform Viewer
21.5.1 Starting the Waveform Viewer In the Windows Start menu, select [ ] - [ ] - [ ]. This starts the Programs HIOKI waveform viewer application. To close the waveform viewer application, in the [ ] menu select [ ]. You File Exit can also click the Close button at the top right corner of the window.
Page 552: Waveform Viewer Menus
──────────────────────────────────────────────────── 21.5.2 Waveform Viewer Menus The following is the complete menu tree of the waveform viewer application. File Open Save All Save Between Cursors Batch Conversion Exit View Toolbar Status Bar Wave Control Panel Properties Trace Block List Zoom In Zoom Out Set Magnification Trig...
Page 553 ──────────────────────────────────────────────────── Right-click with the mouse in the waveform display screen for the following functions. Right-click with Wave Control Panel the mouse Properties Trace Block List Zoom In Zoom Out Set Magnification Trig Jump A Cursor B Cursor Time Notation Point Trig Date None...
Page 554: Using The Waveform Viewer
──────────────────────────────────────────────────── 21.5.3 Using the Waveform Viewer Waveform display To display a waveform it is first necessary to select the file to be displayed. In the [ ] menu, select [ ], to display the file selection dialog box. File Open Select a waveform file, and click Open to read in the file, and display the waveform.
Page 555 ──────────────────────────────────────────────────── Changing waveform scale and position (Waveform Control Panel) You can adjust the display for each channel separately. In the [ ] menu, View select [ ] to display a dialog box. Wave Control Panel This indicate the list of channel. When a check mark is present the corresponding channel is displayed.
Page 556 ──────────────────────────────────────────────────── File list in index file Select [ ], then [ ] to check the file list (block number, file name, View Block List time axis range, trigger time) in the index file. Double-click a file in the list opens a new window in which you can check waveform in that file.
Page 557: Conversion To Csv Format
──────────────────────────────────────────────────── 21.5.4 Conversion to CSV Format You can convert displayed waveform data to a CSV format file. Once in CSV format, the file can be loaded into spreadsheet or other software for further processing. You can either convert the whole data file or a range selected with the cursors.
Page 558 ──────────────────────────────────────────────────── To save in text formats other than CSV (space delimited or tab delimited), select the desired format from the [ ] list. Save as type In the [ ] box, enter the number of original samples corresponding to Thin Out one converted value.
Page 559: Batch Conversion
──────────────────────────────────────────────────── 21.5.5 Batch Conversion You can convert multiple waveform files CSV files. 1. Select [ ] from the menu bar, then select [ ] from the File File Batch Conversion menu. 2. Select the desired files from the file list. To select two or more files, left-click on the desired files while holding down the key.
Page 560 ──────────────────────────────────────────────────── ──────────────────────────────────────────────────── 21.5 Waveform Viewer (Wv)
Page 561 INDEX 1 ──────────────────────────────────────────────────────── INDEX - A - Block display 309, 404 319, 376, 379 A/B cursor 295-302 Bridge voltage 16, 479 418, 422, 507 Accessories - C - ACOS 418, 422, 509 Additional Recording 84, 109, 129 Calculating waveform 418-429 Aliasing 498, 513 Care of recording paper...
Page 562 INDEX 2 ──────────────────────────────────────────────────────── - D - - F - Defining the process Fall time 409, 413, 505 DELETE FEED key 4, 34 Deleting an Equation 143, 510 DEL. SAVE 56, 87, 112, 132, 168 FFT ANALOG UNIT 14, 30, 237, 478 418, 422, 508 File contents DIF2...
Page 563 INDEX 3 ──────────────────────────────────────────────────────── - I - - M - Index file Manual print INFO Manual trigger INITIALIZE screen Maximum input voltage v, 27, 30 Input Level Monitor Maximum rated voltage v, 27 Input type 475, 477, 478, 480, 482 Maximum sampling Input/output terminal v, 27, 445 Maximum value...
Page 564 INDEX 4 ──────────────────────────────────────────────────────── - P - - S - Parallel operation 287, 447, 448 Safety symbols Partial print Sampling 497, 498 Partial X-Y plot Sampling period PC card 367, 368, 456 SAVE 375-383 PC CARD CHECK Scaling function 215-220, 318 Peak-to-Peak value 409, 413, 504 Screen Hard Copy...
Page 565 INDEX 5 ──────────────────────────────────────────────────────── - T - - W - 418, 422, 509 WARNING 492-495 Target ID 322, 371 WAVE DATA CLEAR Text 57, 88, 113, 133, 169, 377 Waveform GO/NG Evaluation Thermal head Waveform Operation Function Thermocouple 15, 234 Waveform Parameter Calculation 409-417 Threshold value Waveform Parameter Evaluation Time axis range 45, 75, 101, 121, 467, 468...
Page 566 INDEX 6 ──────────────────────────────────────────────────────── ─────────────────────────────────────────────────────── INDEX...
Page 569 ・All reasonable care has been taken in the production of this manual, but if you find any points which are unclear or in error, please contact your supplier or the International Sales and Marketing Department at HIOKI headquarters. ・In the interests of product development, the contents of this manual are subject to revision without prior notice.
Page 570 「¥¥172.20.100.34¥ 表紙データ」にコピーする。 HEAD OFFICE 81 Koizumi, Ueda, Nagano 386-1192, Japan TEL +81-268-28-0562 / FAX +81-268-28-0568 E-mail: os-com@hioki.co.jp/ URL http://www.hioki.co.jp/ HIOKI USA CORPORATION 6 Corporate Drive, Cranbury, NJ 08512, USA TEL +1-609-409-9109 / FAX +1-609-409-9108 8826A981-12 06-12H...

Hioki 8826 Instruction Manual

Chapter 1 Product Overview

Chapter 2 Installation and Preparation

Chapter 3 Basic Key Operation

Chapter 4 Memory Recorder Function

Chapter 5 Recorder Function

Chapter 6 RMS Recorder Function

Chapter 7 Recorder & Memory Function

Chapter 8 FFT Function

Chapter 9 Input Channel Settings

Chapter 10 Trigger Functions

Chapter 11 Display Screen Operation

Chapter 12 SYSTEM Screen Settings

Chapter 13 Printout of Measurement Data

Chapter 14 Storing Measurement Data

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Summary of Contents for Hioki 8826