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NF FRA5087 Instruction Manual

Frequency response analyzer
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FREQUENCY RESPONSE ANALYZER
FRA5087
INSTRUCTION MANUAL
NF Corporation

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Summary of Contents for NF FRA5087

  • Page 1 FREQUENCY RESPONSE ANALYZER FRA5087 INSTRUCTION MANUAL NF Corporation...
  • Page 3 DA00014460-004 FREQUENCY RESPONSE ANALYZER FRA5087 INSTRUCTION MANUAL...

  • Page 5: Preface

    Preface Thank you for purchasing “FRA5087 Frequency Response Analyzer”. Please read, first of all, “Safety Instructions: To safely use the frequency response analyzer” on the next page, so that you can use the instrument in the correct and safe manner.

  • Page 6: Safety Instructions: To Safely Use The Frequency Response Analyzer

    The following instructions, including all Warnings and Cautions, shall be observed by all means to protect yourself as well as public safety. Please be advised that NF Corporation shall not be responsible for, and warranty shall be waived for, any loss or damages that will have resulted from ignorance or omissions of these instructions, Warnings or Cautions.
  • Page 7 High voltages appear inside of the instrument. Do not remove the housing (cover) from the instrument by any means. No one except the service technicians certified by NF Corporation are allowed to check or touch the inside of this instrument. Do not touch the inside in any case by yourself.
  • Page 8 This device is equipped with a lithium battery. Ask an industrial waste disposal contractor to dispose of such batteries. The LCD backlight module contains mercury. Ask an industrial waste disposal contractor to dispose of the module. Ask an industrial waste disposal contractor to dispose of the entire device. FRA5087...

  • Page 9: Table Of Contents

    3.1.3 Top panel ......................3-9 3.2 Display at power “ON” and initial settings ............3-10 3.2.1 Displays and indications at power “ON” ........... 3-10 3.2.2 Initialization ....................3-12 3.2.3 Warm-up ......................3-15 3.3 Input and output terminals ................. 3-16 FRA5087...
  • Page 10 4.11 Calculation functions ..................4-27 4.11.1 Operation of four rules of arithmetic ............4-27 4.11.2 Differentiation and integration ..............4-28 4.11.3 Conversion between open and closed loops .......... 4-29 4.12 Auto-sequence ....................4-31 4.12.1 Recording/storage of key sequence ............4-31 FRA5087...
  • Page 11 5.5.1 Connection for open and short correction data storage ......5-11 5.5.2 Data measurement and storage ..............5-11 5.5.3 Open and short correction data memory ........... 5-12 5.5.4 Open and short correction function setting ..........5-12 5.6 Max/min search function ..................5-13 FRA5087...
  • Page 12 8.5.7 Analyzer IMRR ....................8-9 8.5.8 Analyzer dynamic range ................8-10 8.5.9 Analyzer measuring error frequency response ........8-11 9. Specifications ......................9-1 9.1 Oscillation section ....................9-2 9.2 Analysis section input ..................9-4 9.3 Measurement process ..................9-8 FRA5087...
  • Page 13 9.5 Calculations ......................9-11 9.6 Auto sequence ....................9-11 9.7 Display ........................9-12 9.8 Memory ......................... 9-13 9.9 External memory ....................9-13 9.10 Peripheral input/output functions ..............9-14 9.11 Impedance display function (option) .............. 9-15 9.12 Miscellaneous specifications ................9-16 Warranty FRA5087...
  • Page 14 Fig. 1-2 Frequency sweep measurement with FRA ..........1-10 Fig. 1-3 FRA block diagram ..................1-11 Fig. 2-1 Size and dimensions of FRA5087 rack mount ..........2-5 Fig. 2-2 Mounting rack-mount adapter ................. 2-6 Fig. 2-3 Removal of foot-stands ..................2-7 Fig.
  • Page 15 (when accompanying BNC cable is used) ............. 9-5 Fig. 9-4 Oscillation section input - analysis section input isolation voltage specifications (when a cable other than the accompanying cable is used) ........9-7 Fig. 9-5 Block diagram ....................9-18 Fig. 9-6 External dimensions diagram ................ 9-19 FRA5087...
  • Page 16 Table 6-3 a) Data format (RAW measurement data, RAW) .......... 6-6 Table 6-3 b) Data format (OPERATED measurement data, OPRD) ......6-6 Table 6-4 a) Measurement condition file format - Header .......... 6-7 Table 6-4 b) Measurement condition file format - Condition data ........ 6-8 FRA5087 viii...
  • Page 17 1. Introduction 1.1 Features ................ 1-2 1.2 Applications ..............1-3 1.3 List of functions ............1-4 1.4 Principle of operation ........... 1-9 1.4.1 Basic principle ............1-9 1.4.2 Block diagram ............. 1-11 FRA5087...

  • Page 18: Features

    Impedance display available By combining FRA5087 with an amplifier or a shunt resistor, impedances can be measured in a wide range of voltages and amperes that normal LCR meters cannot cover. In addition, use of the impedance display feature facilitates accurate measurement and displaying of the impedances (option).

  • Page 19: Applications

    1.2 Applications 1.2 Applications Since the FRA5087 Frequency Response Analyzer has such features as highly isolated input/output terminals, wide dynamic measurement range and high measurement accuracy, it can be used for various applications as described below. It can also be used to easily form an automatic measurement system combined with an on-line computer due to its standard availability or the GPIB capability.

  • Page 20: List Of Functions

    START/STOP phase Waveform Sinusoidal waveform Rectangular waveform Triangular waveform Analyzer subsystem input Input Excessive CH1 detection level level detection CH2 detection level Actions buzzer buzzer stopping sweep oscillator output off Input channel CH1 coefficient weighting CH2 coefficient Phase invert FRA5087...
  • Page 21 Coherence mode CH1&CH2 Automatic low-speed Mode MANUAL high-density AUTO sweep Decision channel VARIATION θ Automatic Mode SHORT integration LONG Maximum integration time Amplitude Reference channel compression Reference level Restriction output level Allowable error limit Number of retries Correction factor FRA5087...
  • Page 22 Unit GAIN (option) IMPEDANCE Analysis mode CH1/CH2 CH2/CH1 Phase range ±180° 0 - 360° -360° - 0 Selecting MASS DATA display data PERMANENT DATA DISK DATA Auto-scale Display scale FREQUENCY θ Search Y1-PEAK (option) Y1-BOTTOM Y2-PEAK Y2-BOTTOM FRA5087...
  • Page 23 Serial No. display Hard copy File number Disk Directory (DIR) Disk Save (SAVE) DATA CONDITION Load (LOAD) DATA CONDITION Deletion (DELETE) Renaming file name (RENAME) USB flash drive ejection (EJECT) Calibration Calib. START Automatic sequencing AutoSeq Mode NON-ACTIVE WRIT E Deletion FRA5087...
  • Page 24 1.3 List of functions Others Setting title Others Buzzer Setting day/hour Setting initialization System data FRA5087...

  • Page 25: Principle Of Operation

    A/D converter dynamic range and the gain variation range of the preamplifier. FRA5087...

  • Page 26: Fig. 1-2 Frequency Sweep Measurement With Fra

    1 Hz.  The freedom of setting measurement frequencies (frequency sweep density) is large, that is, selection between linear/logarithmic sweep is possible, the number of measurement points per sweep can be set as you like, etc. FRA5087 1-10...

  • Page 27: Block Diagram

    1.4 Principle of operation 1.4.2 Block diagram Fig. 1-3 FRA block diagram FRA5087 1-11...
  • Page 28 1.4 Principle of operation Operation of the FRA5087 Frequency Response Analyzer will be described according to “Fig. 1-3 FRA block diagram”. a) OSC BD This is an oscillator that generates timing signals for this instrument. The OSC BD generates the three following types of signals: sampling clock signals for A/D conversion, local frequency signals for heterodyne and oscillator output signals.

  • Page 29: Preparations Before Use

    2.3 Grounding and power supply connection ......2-8 2.4 Compliant standards............... 2-9 2.5 Quick function checking ............2-10 2.5.1 Checking functions and indications at power “ON” ..2-10 2.5.2 Checking responses for key actions ......2-10 2.6 Calibration ................2-11 FRA5087...

  • Page 30: Inspection Before Use

    High voltages appear at some parts of inside of the instrument. Therefore, do not remove the cabinet/cover from the instrument. Note that no one is allowed to touch the inside of the instrument except for the service persons certified by NF Corporation, even if you need to check its inside. FRA5087...

  • Page 31: Mounting And Installation

    ！ CAUTION Take the following precautions to prevent damage to FRA5087.  FRA5087 is cooled by forced air-cooling. It is requested to install the instrument 10 cm apart from the wall at minimum. If you notice the fan stopped, remove immediately the power supply and report to NF Corporation or NF’s agent/dealer.

  • Page 32: Rack Mounting

    40 mm at minimum between the lower equipment for ventilation purposes.  A space above the FRA5087 is required for replacing the thermal paper roll when the built-in thermal printer is used. See “Figure 9-6 External Drawing” for how to secure a space that allows the lid of the printer unit to be opened and closed.

  • Page 33: Fig. 2-1 Size And Dimensions Of Fra5087 Rack Mount

    Ensure this allowance when installing. Caution Do not just use the rack-mounting flanges when housing in the rack. Provide a shelf or L fittings to hold the main unit on the rack. Fig. 2-1 Size and dimensions of FRA5087 rack mount FRA5087...

  • Page 34: Fig. 2-2 Mounting Rack-Mount Adapter

    2.2 Mounting and installation mm-rack Remove side protector inch-rack Remove side protector Fig. 2-2 Mounting rack-mount adapter FRA5087...

  • Page 35: Fig. 2-3 Removal Of Foot-Stands

    2.2 Mounting and installation Fig. 2-3 Removal of foot-stands FRA5087...

  • Page 36: Grounding And Power Supply Connection

    Note the following precautions to prevent electric shock. Before connecting the unit to perform measurements, always connect the protective grounding terminal to a grounding contact. This instrument’s protective grounding terminal is the grounding plug pin of the mains supply cord. FRA5087...

  • Page 37: Compliant Standards

    The mains supply cord attached to this instrument is exclusively used with the instrument only. Do not use this mains supply cord for other equipment or purposes. 2.4 Compliant standards FRA5087 complies with the following standards. Safety standard : EN61010-1:2010 EN61010-2-030:2010...

  • Page 38: Quick Function Checking

    BACK CLEAR central part of the panel, and ensure that the menu window is properly displayed and closed on the LCD screen. Confirm also that key clicking sound can be heard at each time you press a key. FRA5087 2-10...

  • Page 39: Calibration

    2.6 Calibration 2.6 Calibration Although somewhat contingent on the usage environment and how often the FRA5087 is used, conduct the performance tests of Section 8.5 at least once a year. The performance tests are also recommended immediately before using the equipment for important measurements or testing.
  • Page 40 2.6 Calibration (Blank) FRA5087 2-12...

  • Page 41: Descriptions On Panels And Basic Operations

    3.5 Examples of basic operations ............. 3-21 3.5.1 Menu operation ..............3-21 3.5.2 On/off operations for oscillator output......... 3-25 3.5.3 Examples of basic measurement operations ......3-26 3.5.4 Examples of connections ............. 3-30 3.5.5 High frequency measurement ..........3-33 FRA5087...

  • Page 42: Panel Descriptions

    3.1 Panel descriptions 3.1 Panel descriptions This section describes labels, functions and operations of various parts of the panels (i.e., the front panel, the rear panel and the top panel) of the FRA5087. 3.1.1 Front panel LCD display Menu settings and graphs showing results of measurement are displayed.
  • Page 43 ・ITEM keys are used to shift the item to be selected in the table. ・BASIC SETUP : This is a shortcut menu that allows ready retrievement of the parameters frequently set or revised in the FRA5087. FRA5087...
  • Page 44 SAVE LOAD This feature allows you to load or save the FRA5087 setting by a simple operation. The number of measurement condition sets that can be loaded or saved by these keys is limited to one. : Saves the current FRA5087 measurement conditions in the USB flash ・SAVE...
  • Page 45 ・ACTIVE : The FRA5087 has a capability of displaying two (2) graphs at the same time on one screen, by splitting the screen into two (upper and lower parts). The key is used to alternatively select an active graph.
  • Page 46 LCD screen. The key functions with an alternative mode, so that the window display on and off alternately at every time when the key is pressed. For more details, refer to “4.19 Condition display”. FRA5087...
  • Page 47 Press this key to turn the panel control mode back to the GPIB/USB local mode from the GPIB remote mode. Note that this key is invalid during the local lockout (LLO) condition. For more details, refer to “FRA5087 GPIB/USB Instruction Manual”.  Oscillator control...
  • Page 48 ・ENTER : This key is to execute settings of the character string or numerical values that have been entered/registered. The setting continues unchanged until this key has been pressed. FRA5087...

  • Page 49: Rear Panel

    Connector for the type 5055 to connector be sold/delivered separately. 3.1.3 Top panel The top panel cover can be opened for changing the printer paper. Refer to 4.14 Output to Printer for printer operation and paper change. FRA5087...

  • Page 50: Display At Power "On" And Initial Settings

     A/D subsystem error. This shows that you have failures in the A/D subsystem. Contact and notify the NF representatives when you have one of the three types of errors mentioned above.  All setup and data were lost, re-initialized This error information is displayed either when the battery has been discharged and hence the data in the memory, etc.
  • Page 51  Failure of FRA5087 If a calibration error is indicated even after the above measures, malfunction of the FRA5087 is suspected. Contact NF Corporation or its representative to arrange for repair.

  • Page 52: Initialization

    3.2 Display at power “ON” and initial settings 3.2.2 Initialization The FRA5087 is initialized at the following situations:  At the time of shipment from factory  When backup data destruction due to battery discharge has been detected at power supply switch on.
  • Page 53 10 MHz ○ ○ ○ FREQUENCY MIN 0.1 mHz ○ ○ ○ dBR MAX 40 dB ○ ○ ○ dBR MIN 40 dB ○ ○ ○ R MAX 100E+0 ○ ○ ○ R MIN 0E+0 ○ ○ ○ FRA5087 3-13...
  • Page 54 ○ CONSTANT ○ ○ ○ MODE To/(1+ToTm) ○ ○ ○ ANSWER TAG ○ ○ ○ OUTPUT SELECT GPIB ○ ○ － GPIB ADDRESS ○ ○ － OUTPUT DELIMITER CR/LF^EOI ○ ○ － HCOPY FILE NUMBER ○ ○ ○ FRA5087 3-14...

  • Page 55: Warm-Up

    3.2.3 Warm-up It takes more than 30 minutes after the power supply switching-on for the internal temperature of the FRA5087 to reach stable. Perform measurement right after calibration is made, which shall be made after sufficient time to warm-up has been made. Note that the measurement accuracy specification is met under the condition immediately after calibration.

  • Page 56: Input And Output Terminals

    FRA5087 has the capability of measuring the amplitude and the phase of input signals up to 10 MHz. Use the same type and the same length of signal cables to be connected to individual channel inputs so that the phase can be measured with high accuracy at high frequencies.
  • Page 57 -0.0043 dB in amplitude and -1.8 deg. in phase at 1 MHz.  Pay attention to the cleanliness of the contact of the connector. Dirt/stains at the connector contact can cause approximately 0.03 dB of measurement errors depending upon measurement conditions. FRA5087 3-17...
  • Page 58 The figure below shows an example of the connection of the signal injector 5055 to the instrument. For further information on operational methods of the 5055, refer to the 5055 Instruction Manual. FRA 5087 rear side FRA 5087 front side GPIB CH1 CH2 Accessory to the 5055 Signal injector probe 5055 (sold separately) FRA5087 3-18...

  • Page 59: Insulation Breakdown Voltages Of Input And Output Voltages

    The minimum dielectric breakdown voltage between the cabinet and the above mentioned parts of the FRA5087 is 250 Vrms. (CAT I) when the accompanying BNC cable is used, and 30 Vrms when another cable is used. Be careful not to apply voltages exceeding 250 Vrms between the cabinet and the individual polarities (i.e.,...

  • Page 60: (When Accompanying Bnc Cable Is Used)

     You could be suffered from electric shocks when you measure high voltage circuit signals. Use accessory coaxial cables of the insulation type by all means, so that you cannot directly touch metallic portions of the BNC connectors at the analyzer input terminals. FRA5087 3-20...

  • Page 61: Examples Of Basic Operations

    3.5 Examples of basic operations 3.5 Examples of basic operations 3.5.1 Menu operation Much of the FRA5087 setting is in reference to menu operations shown on the LCD screen. The figure indicates the screen without menus as it appears immediately after startup. OSC: 100.0000000kHz 1.00 Vpeak DC 0.00 V INTEG:...

  • Page 62: Fig. 3-6 Top Menu

    3.5 Examples of basic operations  Screen tag selection and display The FRA5087 has six (6) sets of screens, any one of which can be selected by the DISPLAY SCREEN key. The selected screen is displayed by the blue color in this portion of the screen.

  • Page 63: Fig. 3-7 Menu Window

    After entering character strings as you wish, press the ENTRY ENTER key to fix them as the character strings.  Entering numerical values: Press the ENTRY 1  and/or unit key to enter numerical values, and then press ENTER key to fix them. FRA5087 3-23...

  • Page 64: Fig. 3-10 Function Display

    LCD screen. Press a key you want under the function display portion to display the wanted function. (See “Fig.3-10 Function Display”.) A ut o Se q ΔMKR DISPLAY 1/1 12:00 MKR FREQ RANGE RANGE Fig. 3-10 Function Display FRA5087 3-24...

  • Page 65: On/Off Operations For Oscillator Output

    ！ CAUTION The output voltage will not change even if you change the output voltage setting, unless you press the AC/DC ON key. For more details, refer to “4.5 Oscillator setting”. FRA5087 3-25...

  • Page 66: Examples Of Basic Measurement Operations

    3.5.3 Examples of basic measurement operations This section describes setting procedures for basic measurement operations. The descriptions assume that the setting status of the FRA5087 is the same as that at a delivery from factory or that right after initialization.

  • Page 67: Fig. 3-13 Single Measurement Result

    3.5 Examples of basic operations 2) Setting FRA5087 Press the following keys in the following order: ・Setting measurement frequency (at 1.0 MHz): OPEN OSC CURSOR TO TOP (menu selection key) (function key) OPEN ENTER ・Setting AC amplitude (at 5 Vpeak)
  • Page 68 Y1-axis : dBR Y2-axis :  1) Connection with the SUT (system under test) Connect the FRA5087 with the SUT (system under test) according to “Fig. 3-12 Connection with SUT” for the measurement mode of (CH1 and CH2). FRA5087 3-28...
  • Page 69 3.5 Examples of basic operations 2) Setting FRA5087 Execute the key entries by the following sequence. Using the BASIC SETUP key facilitates the important item settings, and allows you to observe the current setting condition at a glance. ・Sweep maximum frequency setting (2.2 MHz)

  • Page 70: Examples Of Connections

    Set the measurement mode at (CH1 and CH2) and the analysis mode at (CH2/CH1) for the FRA5087, to display the SUT frequency characteristics (gain and phase versus frequency) on the LCD screen so that you can directly read them through the display.

  • Page 71: Fig. 3-16 Connection Diagram For Loop Gain Measurement

    A or the open loop A. The FRA5087 can be used to measure of the servo loop; i.e., The oscillator of the FRA5087 is to be inserted into the servo loop circuit. The measurement is made possible by virtue of such FRA5087’s features as its wide dynamic range as well as its oscillator output and analyzer inputs...

  • Page 72: Fig. 3-17 Connection Diagram For Impedance Measurement

      Set the analysis mode at (CH1/CH2) for the FRA5087, and also, set the CH2 input weighting factor at 1/Rs (for 1.0Rs) to measure the DUT impedance characteristics and to display them as the amplification gain on the LCD screen.

  • Page 73: High Frequency Measurement

    The FRA5087 equalizer function can be used to compensate the probe error correction. See 4.7 Equalization By applying a feed through type 50  terminator to the FRA5087 signal input terminal, a 500  input impedance, high frequency 10:1 probe can also be used.
  • Page 74 For details, please confirm probe specification. e) Connecting cable length and routing The FRA5087 signal line and chassis are isolated. However, at high frequency, current can easily flow between the cable outer conductor (shield) and ground due to stray capacitance. If the connecting cable is long, oscillation can occur due to such properties as cable inductance and isolation capacitance, disturbing frequency response and possibly preventing measurement.

  • Page 75: Examples Of Application Operations

    4.13 Simplified load/save of setting conditions ........ 4-34 4.14 Output to printer ............... 4-36 4.15 Output to USB flash drive ............4-39 4.16 Calibration ................4-40 4.17 File operation ................4-41 4.18 Memory ..................4-44 4.19 Condition display ..............4-45 4.20 Other functions ................. 4-45 FRA5087...

  • Page 76: Overview Of Measurement And Processing

    4.1 Overview of measurement and processing 4.1 Overview of measurement and processing This section describes the flow of data processing from measurement up to data display in the FRA5087. (See “Fig. 4-1 Flow diagram of measurement and processing”.) Equalizing Measurement mode...

  • Page 77: Measurement Mode

    (CH1, OSC) and (OSC, CH2) are used for the two-port system. Note, however, that the two-port system measurement provides better results for the measurement mode (CH1, CH2), since the effect of cables can be reduced in the two-port system measurement. FRA5087 Measurement mode: (CH1,CH2) S.U.T Fig.

  • Page 78: Analysis Mode

    |/|V (CH1/CH2)  =    Gain = |V |/|V (CH2/CH1) |,   =    |,  Amplitude = |V (CH1)  =    Amplitude = |V (CH2)  =    FRA5087...

  • Page 79: Display Mode

    Frequency (Hz) logF  (deg)  Logarithmic scale Frequency (Hz)   (deg)  (deg) Gain (dB)  Nichol’s chart Gain   (deg) Gain real part Gain imaginary part Nyquist diagram Gain real part Gain imaginary part Cole-Cole plot FRA5087...

  • Page 80: Delaying Measurement Start

    The measurement start time is set with some delay time period for the FRA5087 frequency response characteristics measurement, so that the transient error can be suppressed at the minimum level. You can set the delay time period at an arbitrary value according to the time constant of the SUT.

  • Page 81: Integration

    The number of integrations (or the integration time period)that is set for the FRA5087 measurement corresponds to averaging operation of input signal waveforms before Fourier integration.
  • Page 82 The FRA5087 has a special capability called automatic (auto) integration, which provides a capability of automatically setting integration times during the measurement. The use of automatic integration capability will lead to automatic selection of optimum integration times as well as reduction of the measurement period of time.

  • Page 83: Input Setting

    These are to set the detection levels for excessive (over) input signal levels. FRA5087 has the capability of measuring up to 250 Vrms of input signals due to the auto-range capability of the analysis inputs. However, any levels that exceed the levels set here are judged to be excessive (over) input signal levels.

  • Page 84: Oscillator Setting

    OFF key is pressed. The oscillator output voltages are shown in the figure as “Fig. 4-7 Oscillator stop mode”, in which the AC OFF key is pressed first while the oscillator output is on, then the AC/DC ON key is pressed. FRA5087 4-10...

  • Page 85: Fig. 4-7 Oscillator Stop Mode

    Therefore, the setting of 90 deg. in phase means the maximum amplitude in the positive phase region, for example. [WAVE FORM] This is used to set the output waveform. Select one from among [SINE](sinusoidal waveform), [SQUARE](square waveform) and [TRIANGLE](triangular waveform). FRA5087 4-11...

  • Page 86: Fig. 4-8 Oscillator Output Voltage Variation In The Slow Status

    If you switch the oscillator output voltage on or off while [SLOW] is set, the oscillator output voltage changes slowly, but not quickly or instantly. This function of the FRA5087 is especially effective, for example, not to cause shocks to a vibrator when the FRA5087 output is fed to the vibrator via a power amplifier.

  • Page 87: Display Setting

    4.6.1 Setting display format The FRA5087 offers two (2) display modes available to display measurement data on the screen; one is the [SINGLE] mode where only a single graph is displayed on the screen and the other is the [SPLIT] mode where two graphs are displayed with one in the upper part and the other in the lower part of the screen by splitting it into two by the horizontal line in the middle of the screen.

  • Page 88: Setting Display Scale

    : Grids are displayed for all of the X, Y1 and Y2 axes. Note that this last selection is valid only when the selected graph display mode ([Graph][DISPLAY MODE]) involves both gain and phase; i.e., “logF-dBR-”, ”F-dBR-” or ”F-R-”. FRA5087 4-14...
  • Page 89  Next, Calculate the gain grid interval, and set the [dBR MAX] and [dBR MIN] in the [SCALE]: From {110-(-10)}8(=phase grid division number)=15, the gain grid interval can be obtained as 20. Set either 120 and -40, or 140 and -20 for [dBR MAX] and [dBR MIN], respectively, in the [SCALE]. FRA5087 4-15...

  • Page 90: Setting Markers

    The data display portion of the screen displays the read out data that have been read by the normal marker.  The delta marker is active (i.e., SET lamp is on.): Turn the knob and only the delta marker moves. The data display portion of the screen displays the difference from normal marker data. FRA5087 4-16...

  • Page 91: Fig. 4-10 Data Marker Display

    SET.). Active markers are those which move by knob actions. Table 4-3 Active line markers Lamps lit on Active line marker SET x axis normal marker y axis normal marker x axis delta marker y axis delta marker FRA5087 4-17...

  • Page 92: Fig. 4-12 Line Marker Display

    Turn the knob and only the y axis delta marker moves vertically up and down. The data display portion of the screen displays the difference between “the intersection of y axis delta marker with the y axis” and “the intersection of y axis normal marker with the y axis”. FRA5087 4-18...

  • Page 93: Setting Phase Display Range

    [ASSIGN] key. The data read out from the USB flash drive will be deleted from the data memory when another set of data is further read out from the USB flash drive. If you want to maintain the data, store them in the master data memory or in the permanent data memory. FRA5087 4-19...
  • Page 94 Then, switch off the power supply of the FRA 5087 and switch it on again to load the data from the USB flash drive. FRA5087 4-20...

  • Page 95: Equalization

    4.7 Equalization 4.7 Equalization The error compensation capabilities of the FRA5087 involve not only the calibration function for self error compensation, but also the equalization function that cancels measurement error components arising from sensors, cables, etc. 4.7.1 Operation of equalization...

  • Page 96: Principle Of Equalization

    4.7 Equalization 4.7.2 Principle of equalization The equalization principle is described below with respect to Fig. 4-14. FRA5087 FRA5087 Probe1 Probe2 Probe1 Probe2 Vout Veql Fdut a) Measurement of DUT b) Measurement of measurement system Fig. 4-14 Principle of equalization 1) Measure by using the connection shown in Fig.

  • Page 97: Harmonics Analysis

    4.8 Harmonics analysis 4.8 Harmonics analysis The FRA5087 analyzes measured data by the use of DFT (discrete Fourier transform) to provide measurement/analysis results. Normally, measurement/analysis is made for the oscillator output frequency components. However, the FRA5087 can also measure and analyze those frequency components that are integer-multiplication of the oscillator output frequency (i.e., frequency...

  • Page 98: Amplitude Compression

    5) The measurement data will be output. The FRA5087 has a provision that the maximum oscillator output level can be set so that it will not exceed the maximum permissible DUT input level, when the oscillator output voltage is controlled according to the step 3) above.

  • Page 99: Fig. 4-17 Example Of Output Correction (70%)

    [OSC][AMPLITUDE], even if you have disabled the amplitude compression function by setting the [FUNCTION] at “off”. ！ CAUTION Error message 15 may appear during amplitude compression. This is not a malfunction. See 7.1 error message. Review [ERROR], [RETRY TIMES] and [CORRECTION FACTOR] settings. Again conduct measurement. FRA5087 4-25...

  • Page 100: Frequency Axis High Density Slow Sweep

    If the value set in [VARIATION] is too low, the sweep density becomes extremely high and the sweep operation could stop on the way due to the memory capacity being full. Note that the FRA5087 has the maximum number of frequency point measurement capacity of 20,000 due to the memory capacity available.

  • Page 101: Calculation Functions

    FRA5087, to display the calculation results on the LCD screen and to save/store the calculation results in USB flash drive. There are three (3) types of calculation operations available for the FRA5087, which are as follows: ・[+ - ...

  • Page 102: Differentiation And Integration

    DATA TAG (complex numbers can also be used) through the use of the four rules of arithmetic functions. Press the function key [START] to start calculation operations and to display the calculation result in the “ANSWER TAG”. FRA5087 4-28...

  • Page 103: Conversion Between Open And Closed Loops

    TAG through the use of the four rules of arithmetic function. In this application, the open loop transfer function To cannot be derived from a single loop transfer function (To.Tm). FRA5087 4-29...
  • Page 104 4.11 Calculation functions ！ CAUTION  The FRA5087 has the maximum memory capacity of 20,000 points. Therefore, the calculation capabilities are limited to approximately 6,000 data points for operations of the four rules of arithmetic or of the open- and...

  • Page 105: Auto-Sequence

    4.12 Auto-sequence 4.12 Auto-sequence The FRA5087 has a feature of storing a sequence of key operations and of later reading out the stored key operation sequence (Auto sequence). You can repeat typical types of measurements in an effective manner by storing a series of complicated key operations involving settings, measurements, calculations and disk operations.

  • Page 106: Executing Key Sequence

     During execution of key sequence operations, all key entries are ignored except for the GPIB LOCAL key.  If the work area memory cannot be secured at the time of starting execution, the execution does not start with an error message (“Memory overflow”) displayed. FRA5087 4-32...

  • Page 107: Deleting Key Sequence

    However, if you try to execute a sequence again after the sequence has been completed, no sequence will be executed unless a sequence is again recorded, since the recorded content has already been deleted. FRA5087 4-33...

  • Page 108: Simplified Load/Save Of Setting Conditions

    TO TOP]. 4.13 Simplified load/save of setting conditions You can easily load/save the FRA5087 setting conditions from/to the USB flash drive without entering a file name. Storing the frequently used conditions in the USB flash drive lets you easily read and use such conditions.

  • Page 109: Simplified Condition Save

    4.13 Simplified load/save of setting conditions 4.13.2 Simplified condition save Press the CONDITION SAVE key, then the FRA5087 setting conditions at that time are saved in the USB flash drive under the file name “CURRENT.CON”. An information message appears and asks to confirm whether to save. To save, press the function key [CONTINUE].

  • Page 110: Output To Printer

    Open the cover Open the printer on the top of the FRA5087. Use a coin or similar tool to turn and release stoppers, then open the cover.

  • Page 111: Fig. 4-23 Loading Printing Paper

    Turn the stopper in the horizontal direction to press the lid into the cover to where a clicking sound indicates the lid is secure. Stopper Printer paper Turn the stopper horizontally and close the lid Fig. 4-24 Cover attachment FRA5087 4-37...

  • Page 112: Lcd Screen Hardcopy

     Remove the printer paper before transporting the FRA5087. If left loaded, the paper can unravel and lead to possible damage during transport. FRA5087...

  • Page 113: Output To Usb Flash Drive

    (attached) and connect it to the USB port on the upper left of the pane. When using the USB flash drive, please note the following. ・ Is directly inserted into the USB port (at upper left of the front panel) of the FRA5087, not via any USB-HUB or extension cable.

  • Page 114: Calibration

    4.16 Calibration 4.16 Calibration In calibration operations, the frequency characteristics of amplitude and phase of the FRA5087 are automatically calibrated with reference to the internal oscillator. The calibration results are stored in the internal memory and will be used as calibration data for measurements.

  • Page 115: File Operation

    4.17 File operation The attached USB flash drive conforms to both USB 1.1 and 2.0 standards. Therefore, the measurement data saved by the FRA5087 can be read out and utilized by IBM PC/AT compatible machines. Files are operated in the window menu [DISK] in the menu [Disk].
  • Page 116 (read in) the data and conditions. A part of the measurement conditions is added to individual DATA files; it is required, however, that you load the CONDITION file also so that the FRA5087 is to be set at the same condition.
  • Page 117 EJECT … USB flash drive removal Before removing USB flash drive from FRA5087, be sure to press the function key [EJECT] and check that the USB flash drive is not accessed, by, for instance, confirming that the access lamp is off.

  • Page 118: Memory

    4.18 Memory 4.18 Memory The FRA5087 is equipped with memories which are to be used for recording/storing measured data. Types Battery back-up provision Memory capacity Mass memory No (deleted with power off) No less than 20,000 points*1 Permanent memory No less than 2,000 points...

  • Page 119: Condition Display

    Note that the measurement condition displayed when you press the CONDITION VIEW key is the condition under which the currently displayed data have been measured, but not the current FRA5087 condition which has been set for measurement. 4.20 Other functions Use the menu [Others] to set the built-in clock, etc.
  • Page 120 4.19 Condition display (Blank) FRA5087 4-46...

  • Page 121: Impedance Display Function (Option)

    5.5.1 Connection for open and short correction data storage ....5-11 5.5.2 Data measurement and storage ............5-11 5.5.3 Open and short correction data memory ......... 5-12 5.5.4 Open and short correction function setting ........5-12 5.6 Max/min search function................ 5-13 FRA5087...

  • Page 122: General

    5.1 General 5.1 General The PA-001-1231 is an optional added software package for the FRA5087 Frequency Response Analyzer. The additional functions provided are impedance display, open and short correction, maximum and minimum value search. Since installation requires overwriting the FRA5087 internal software, this option must be installed by the factory or a properly equipped dealer.

  • Page 123: Option Software Chart

    Graph Grid TYPE STYLE X-Y1 X-Y2 X-Y1-Y2 Marker ・・・ Display mode X axis logF θ Y1 axis logR θ logA logA(-A) Y2 axis θ logB logB(-B) - - - Units GAIN IMPEDANCE Display scale ・・・ Max/min detect display (search) FRA5087...
  • Page 124 Open correction Short correction High harmonic analysis Measuring mode ・ ・ ・  Open and short storage added to memory setting. Memory MASS STORAGE (Storage) PERMANENT EQUALIZE OPEN STORAGE SHORT STORAGE DELETE MASS PERMANENT (Delete) CURRENT TAG ・ ・ ・ FRA5087...

  • Page 125: Operation Method

    - reactance  log(-B) - reactance  Reactance Linear  - reactance Linear  CH2/CH1 Admittance Linear logR Admittance Admittance Linear logA Conductance log(-A) - conductance Conductance Linear logB - susceptance log(-B) - susceptance Susceptance Linear - susceptance Linear FRA5087...
  • Page 126 Amplitude Linear logR Amplitude Vrms Amplitude Linear Vrms logA Amplitude real Vrms log(-A) - amplitude real Vrms Amplitude real Linear Vrms logB Amplitude imaginary Vrms log(-B) - amplitude imaginary Vrms Amplitude imaginary Linear Vrms - amplitude imaginary Linear Vrms FRA5087...

  • Page 127: Table 5-2 Option Additional Display Modes

    Impedance (log) None Table 5-2 indicates examples of Y1 and Y2 axis items when units are impedance and analysis mode is CH1/CH2. The actual displayed items differ with the units and analysis mode, and are indicated in Table 5-1. FRA5087...

  • Page 128: Graph Units Setting

    GAIN[Vrms] GAIN[Arms] GAIN[dBV]*1 GAIN[dBA]*2 CH1/CH2 GAIN[E+00] IMPD[] GAIN[dB] IMPD[dB]*3 CH2/CH1 GAIN[E+00] ADMT[S] GAIN[dB] ADMT[dBS]*4 Notes 1. 1 Vrms = 0 dBV 2. 1 Arms = 0 dBA 3. 1  = 0 dB 4. 1 S = 0 dBS FRA5087...

  • Page 129: Graph Screen Description

    Set invert on to invert the phase (+180). This can be effective for inverting voltage and current phase when measuring impedance. Common ground for voltage d ³ Æ d ¬ Ì CH2(I) CH2(I) and current inputs ü Í O h ¤ Ê CH1(V) CH1(V) SHUNT SHUNT INVERT:OFF INVERT:ON Fig. 5-1 Phase invert connection FRA5087...

  • Page 130: Connection For Impedance Measurement

    CH1 and current detect signal to CH2. A 1 to 100 shunt resistor is suitable for current detection. If measuring a larger voltage and large current, supply the FRA5087 oscillator output to an external amplifier. The NF Corporation HSA series can be used to 300 Vp-p.

  • Page 131: Open And Short Correction

    Short correction: Low impedance (under about 10 ) Open correction: High impedance (above about 1 k) Connections for storing open and short correction data are indicated in Figs. 5-3 and 5-4. FRA5087 FRA5087 CH1 CH2 CH1 CH2...

  • Page 132: Open And Short Correction Data Memory

    Table 5-4 Open and short correction formulas Open correction Short correction Correction formula Zx=Z-Zs Zx=Zp×Z÷(Zp-Z) Zx=Zp×(Z-Zs)÷(Zp-(Z-Zs)) Zx: Correction computation result Z : Measurement value Zs: Short correction data (CH1/CH2) Zp: Open correction function (CH1/CH2) These formulas apply regardless of the [ANALYSIS MODE]. FRA5087 5-12...

  • Page 133: Max/Min Search Function

    The function is effective only when menu [GRAPH] [FORMAT] [MARKER TYPE] sets [DATA]. When search is executed, the function display menu extinguishes (extinguish at the top menu by pressing the CLOSE key). Y1-PEAK Y1-BOTTOM Y2-PEAK Y2-BOTTOM Fig. 5-6 Max/min search function keys FRA5087 5-13...
  • Page 134 5.6 Max/min search function (Blank) FRA5087 5-14...

  • Page 135: Files

    6.3 File format ..............6-2 6.3.1 Format of measurement data files ......6-4 6.3.2 Format of measurement conditions files ....6-7 6.4 Software for reading files ..........6-13 6.4.1 Installation ............6-14 6.4.2 Uninstallation ............6-14 6.4.3 Overview of operations ......... 6-15 FRA5087...

  • Page 136: Overview

    6.1 Overview 6.1 Overview The FRA5087 has a provision of saving, as a file, measurement data and setting conditions in an external memory (USB flash drive). You can read out the content of the saved file through PCs such as IBM PC/AT compatible machines.

  • Page 137: Table 6-1 Data Types Of Variables Within File

    AT/PC compatible machines. The following shows the formats of the IEEE double and single precision floating-numbers which are used for the FRA5087 file.  Format of IEEE double precision floating-point number (8 bytes per data, or set of data) Leading byte...

  • Page 138: Format Of Measurement Data Files

    There are two types of measurement data files: i.e., raw measurement data (RAW data) and operated measurement data (OPERATED data). RAW data are those which have been obtained through direct measurement by the FRA5087, which may have been processed by equalizing (through menu [Measure][BASIC FUNCTION][EQUALIZING]) and input weighting (through menu [Input][WEIGHTING FACTOR]) functions.

  • Page 139: Table 6-2 B) Measurement Data File Format - Set Parameters

    DataType of the offset 44(0x2c) in the set parameter. The first one (point of) data for either of the RAW or OPERATED data (RAW[0] or OPRD[0]) is invalid. The number of data is stored in Num in the offset 46(0x2e) of the set parameter. FRA5087...

  • Page 140: Table 6-2 C) Measurement Data File Format - Data (Raw Data)

    12(0xc) float 180.0 < phase  +180.0 16(0x10) float CH2 voltage (Vrms) 20(0x14) double Coherence Table 6-3 b) Data format (OPERATED measurement data, OPRD) Offset Type Descriptions (content) double Frequency (Hz) float Gain 12(0xc) float Phase(deg) 180.0< phase +180.0 FRA5087...

  • Page 141: Format Of Measurement Conditions Files

    One measurement condition file constitutes the header and the condition data. The leading portion of the file is the header, where such information as the file size and the version number of the FRA5087 is written in. The condition data refer to the parameters to be set for measurement by the FRA5087.

  • Page 142: Table 6-4 B) Measurement Condition File Format - Condition Data

    152(0x98) short 1:rectangular waveform, 2:triangular waveform 154(0x9a) short (not yet used) 156(0x9c) short Sweep resolution (Log steps/decade) 158(0x9e) short Sweep resolution (Log steps/decade) 160(0xa0) short Sweep resolution (Lin steps/sweep) 162(0xa2) short Integration period (cycle) 164(0xa4) short Delay period (cycle) FRA5087...
  • Page 143 228(0xe4) short 0:Log steps/sweep, 1:Log steps/decade, 2:Lin steps/sweep, 3:Lin Hz 230(0xe6) short Type of specifying number of integrations 0:period, 1:time 232(0xe8) short Type of specifying delay time 0:period, 1:time 234(0xea) short Type of automatic integration limit value 0:period, 1:time FRA5087...
  • Page 144 0: , 1:logB, 2:log(-B), 3:B, 4:OFF Display units 290(0x122) short 0: Gain, 1: Impedance (standard version is always gain) 292(0x124) short (not yet used) 294(0x126) short Bitmap file name number 296(0x128) short GPIB/USB 0: GPIB, 1: USB 298(0x12a) short (not yet used) FRA5087 6-10...
  • Page 145 Display scale initial value : b MIN(Vrms) DATA1 constant value in real number for the four rules of 580(0x244) double arithmetic operation DATA1 constant value in imaginary number for the four rules of 588(0x24c) double arithmetic operation FRA5087 6-11...
  • Page 146 Mass data SAVE file name 3212(0xc8c) char[246] (not yet used) 3458(0xd82) char[12] Permanent data SAVE file name 3470(0xd8e) char[246] (not yet used) 3716(0xe84) char[64] Data title 3780(0xec4) char[194] (not yet used) 3974(0xf86) char[256] Auto-sequence recording area 4230(0x1086) char[2] (not yet used) FRA5087 6-12...

  • Page 147: Software For Reading Files

    The software “DSPL5090.EXE”, which has a capability of reading out the file produced by the FRA5087 and of displaying the read-out data in the form of the Bode diagram on the PC screen can be downloaded from the NF Corporation website at http://www.ntcorp.co.jp.

  • Page 148: Installation

    “DSPL5090.EXE” and “DSPL5090.CFG”, delete the whole folder. If you have additional files that are needed, delete only the files of “DSPL5090.EXE” and “DSPL5090.CFG”. Deleting added items Delete those items that have been added to the start menu and the desktop, if any. FRA5087 6-14...

  • Page 149: Overview Of Operations

    Printing graph Use the menu [File][Print graph] or click the button to print (or plot) the graph of the file data that have been read in. Execute [File][Setup printer...] in advance, if necessary. FRA5087 6-15...
  • Page 150 Use the menu [Setup][Overwrites as standard value] to change the current format to the standard value. Use the menu [Setup][BAck to standard value] to turn the current format back to the standard value. FRA5087 6-16...

  • Page 151: Trouble Shooting

    7. Trouble shooting 7.1 Error messages ............... 7-2 7.1.1 List of information messages ........7-2 7.1.2 List of error messages ..........7-3 7.2 Quick diagnosis .............. 7-7 FRA5087...

  • Page 152: Error Messages

    7.1 Error messages 7.1 Error messages The FRA5087 outputs two types of messages, information messages and error messages. Either type of messages is displayed in the center of the screen when needed, information messages being surrounded by the blue frame and error messages being surrounded by the red frame. In event of FRA5087 error, controller can also be notified via GPIB and USB.

  • Page 153: List Of Error Messages

    The USB flash drive capacity is insufficient for storage. File not found The specified file cannot be found. Storage memory overflow The memory capacity is insufficient for storage. No data to be saved No data exist which are to be saved. FRA5087...
  • Page 154 Since the line markers in the y-axis direction are invalid for the sweep range that you are setting, you may not set the sweep range by using the line markers. Missing file name The file name is missing. Duplicate file name Duplicated file names have been found. FRA5087...
  • Page 155 No axis in this axis mode The specified axis does not exist in the current display mode. GPIB bus error The GPIB error, where the handshake lines on the GPIB bus do not match to each other. FRA5087...
  • Page 156 The memory capacity is insufficient to secure the area required for “auto-sequence” operation. Sequence buffer overflow The sequence buffer memory has overflowed, its capacity being insufficient. Discontinue to record sequence Recording sequence been discontinued. Printer timeout The printer does not respond. FRA5087...

  • Page 157: Quick Diagnosis

    7.2 Quick diagnosis If you find anything wrong with operations of the instrument, try the following quick diagnoses and measures. If the operations cannot be recovered after the measures taken, contact NF Corporation or one of its representatives. Failure mode...
  • Page 158 7.2 Quick diagnosis (Blank) FRA5087...

  • Page 159: Maintenance

    8.5.3 Oscillator output frequency accuracy ..8-5 8.5.4 Oscillator output amplitude accuracy ..8-6 8.5.5 Oscillator distortion........8-7 8.5.6 Oscillator output DC bias accuracy ....8-8 8.5.7 Analyzer IMRR ..........8-9 8.5.8 Analyzer dynamic range ......8-10 8.5.9 Analyzer measuring error frequency response ........8-11 FRA5087...

  • Page 160: Introduction

    If you find anything wrong with functions or operations of the instrument, or if performance test results do not meet the specifications, contact NF Corporation for repair. In doing so, inform NF Corporation of the outcome of your diagnosis and/or of the performance test results, so that the company could more quickly respond to your requests.

  • Page 161: Storage, Re-Packaging And Transportation

    8.4 Identification of version number (when impedance display option is included) (Standard version) TABLE FRA5087 – Version *.** - Standard Version. - Include Impedance Display Option. http://www.nfcorp.co.jp Copyright 1989..2006 NF Corporation Press menu, [Others], [SYSTEM] to show above window. Version appears in window at bottom line.

  • Page 162: Performance Test

    Leave the instrument for at least one (1) hour after turning the power on so that the internal temperature becomes stabilized. Perform/execute calibration by all means before the test. The performance of the FRA5087 is specified on the basis of the status right after calibration.

  • Page 163: Oscillator Output Frequency Accuracy

    8.5 Performance test 8.5.3 Oscillator output frequency accuracy The test of oscillator frequency accuracy is described in this paragraph. a) Setting FRA5087 Frequency counter Output waveform sinusoidal wave Gate time 10 sec. Output voltage 1 Vpeak DC bias: b) Connection...

  • Page 164: Oscillator Output Amplitude Accuracy

    8.5 Performance test 8.5.4 Oscillator output amplitude accuracy The oscillator output amplitude and frequency response are tested. a) Setting FRA5087 Multi-meter Output waveform sinusoidal wave Measurement mode AC voltage Output voltage (True RMS) 10 Vpeak DC bias b) Connection FRA5087...

  • Page 165: Oscillator Distortion

    8.5 Performance test 8.5.5 Oscillator distortion Oscillator sine wave distortion is tested. a) Setting FRA5087 Distortion meter Output waveform Sinusoidal wave Noise distortion (THD) measuring mode Output voltage 10 Vpeak DC bias b) Connection FRA5087 Distortion meter CH1 CH2 BNC-BNC...

  • Page 166: Oscillator Output Dc Bias Accuracy

    8.5 Performance test 8.5.6 Oscillator output DC bias accuracy The oscillator output DC bias accuracy is tested. a) Setting FRA5087 Multi-meter Output waveform Sinusoidal wave Measuring mode DC voltage Output voltage 0 Vpeak b) Connection FRA5087 Multi-meter CH1 CH2 BNC-BNC...

  • Page 167: Analyzer Imrr

    CH1 IMRR measurement CH2 IMRR measurement c) Procedure Set the analyzer mode as follows. Conduct Single measurement with FRA5087. Read the dBR measuring results from the LCD screen. Analyzer mode for CH1 IMRR measurement: CH2/CH1 Analyzer mode for CH2 IMRR measurement: CH1/CH2...

  • Page 168: Analyzer Dynamic Range

    CH1 dynamic range measurement CH2 dynamic range measurement c) Procedure Set the analyzer mode as follows and sweep with the FRA5087. Read the minimum dBR measuring results from the LCD screen. Analyzer mode for measuring CH1 dynamic range: CH2/CH1 Analyzer mode for measuring CH2 dynamic range: CH1/CH2...

  • Page 169: Analyzer Measuring Error Frequency Response

    T-type divider c) Procedure Use FRA5087 for sweep measurement. Read the absolute maximum measured results for dBR and θ for frequency ranges up to 20 kHz, 500 kHz, 2.2 MHz and 10 MHz from the LCD screen. d) Judgment...
  • Page 170 8.5 Performance test (Blank) FRA5087 8-12...

  • Page 171: Specifications

    9.5 Calculations ............9-10 9.6 Auto sequence ............9-10 9.7 Display ..............9-11 9.8 Memory ..............9-12 9.9 External memory ..........9-12 9.10 Peripheral input/output functions ....... 9-13 9.11 Impedance display function (option) ....9-14 9.12 Miscellaneous specifications ......9-15 FRA5087...

  • Page 172: Oscillation Section

    SLOW (gradually increases/decreases until reaching the set voltage or 0 V) Phase control (The oscillation start/stop phase can be set by one degree increments.) AC and DC can be simultaneously turned ON/OFF, while AC can be independently turned OFF. FRA5087...
  • Page 173 This value applies when the accompanying BNC cable is being used. 30 Vrms continuous applies when a cable other than the accessory cable is used. Against-enclosure capacity No more than 250 pF ●Measurement category I, maximum transient voltage 1,500 Vrms FRA5087...

  • Page 174: Analysis Section Input

    80 dB typ. (above 1MHz, no more than 10 MHz) (This value applies when the bigger of the channel inputs is at least 10 Vpeak, with an integration of 4,000 cycles) ●Input weight 0 to 1.0E+6 (resolutions 5 digits or 0.01E-9) FRA5087...

  • Page 175: Fig. 9-1 From-Enclosure Isolation Voltage Specifications

    (CH1 and CH2) when the accompanying BNC cable is being used. 250Vrms 250Vrms 250Vrms 250Vrms 250Vrms 250Vrms 250Vrms 250Vrms 250Vrms 250Vrms 250Vrms 250Vrms Fig. 9-3 Oscillation section input - analysis section input isolation voltage specifications (when accompanying BNC cable is used) FRA5087...
  • Page 176 (CH1 and CH2) when a cable other than the accompanying cable is being used. 30Vrms 30Vrms 30Vrms 30Vrms 30Vrms 30Vrms 30Vrms 30Vrms 30Vrms 30Vrms 30Vrms 30Vrms Fig. 9-4 Oscillation section input - analysis section input isolation voltage specifications (when a cable other than the accompanying cable is used) FRA5087...

  • Page 177: Measurement Process

    A feature that repeats integration until reaching a certain reliability Maximum integration time Cycle setting Setting range 2 to 9,999 cycles Setting resolution 1 cycle Second setting Setting range 0 to 9,999 seconds (two cycles of integration are always executed regardless of the setting) Setting resolution 10 ms FRA5087...
  • Page 178 3 digits or 1 V, whichever is greater Setting range 0 to 1000 dB Setting resolution 3 digits or 0.01 dB, whichever is greater Phase Setting range 0 to 180 degrees Setting resolution 3 digits or 0.01 degrees, whichever is greater FRA5087...
  • Page 179 ●Harmonic analysis feature A feature that measures the harmonic components 2nd to 10th (highest frequency of the harmonics is 10 MHz) FRA5087...

  • Page 180: Analysis Process

    Open loop -> closed loop conversion, closed loop -> open loop conversion Feedback characteristics is specified by data or numeric 9.6 Auto sequence ●Key sequence record Records the key operations in the internal memory ●Key sequence execution Executes previously recorded key operations ●Key sequence deletion Deletes recorded key operations FRA5087 9-10...

  • Page 181: Display

    Sets a title to measurement data and calculation data, and the title is displayed with the graph ●Date and time display Displays the date and time which are either up to date, or are those of the time the data were sampled FRA5087 9-11...

  • Page 182: Memory

    Load (reads out data and setting conditions) ●Screen image save feature File format MS Windows bitmap file (extension: .BMP, image size 640x480) File size Approximately 150 kB File name FRAnnn (nnn: 3 digit number, automatic increment, the initial value is specifiable) FRA5087 9-12...

  • Page 183: Peripheral Input/Output Functions

    Paper width 112 mm Suitable paper TP-451C (Seiko Instruments Inc.) ●DC power output Power output used for our signal injector probe 5055 (sold separately) Connector Rear panel, AUX connector Output voltage Approximately 24 V Output current Maximum 100 mA FRA5087 9-13...

  • Page 184: Impedance Display Function (Option)

    Y1-axis maximum, Y1-axis minimum, Y2-axis maximum, Y2-axis minimum Search method When the function key relevant to the search item is pressed when data marker is being displayed, the vertical axis parameters are automatically searched and the marker moves accordingly FRA5087 9-14...

  • Page 185: Miscellaneous Specifications

    (Furthermore, AH 1 to 25 g/m , no condensation) Storage conditions -5 to +50 C, 5 to 95 % RH (Furthermore, AH 1 to 29 g/m , no condensation) Pollution degree Storage Performance conditions guaranteed 10 50 C FRA5087 9-15...
  • Page 186 434 (W) x 177 (H) x 453 (D) mm (without protrusions) ●Weight Approximately 12 kg (weight of the main unit excluding other matters such as accessories and options) ●Safety EN 61010-1:2010 EN 61010-2-030:2010 ●EMC EN 61326:2013 (Group 1, Class A) EN 61000-3-2:2006+A1:2009+A2:2009 EN 61000-3-3:2013 FRA5087 9-16...

  • Page 187: Fig. 9-5 Block Diagram

    9.12 Miscellaneous specifications Fig. 9-5 Block diagram FRA5087 9-17...

  • Page 188: Fig. 9-6 External Dimensions Diagram

    9.12 Miscellaneous specifications Fig. 9-6 External dimensions diagram FRA5087 9-18...
  • Page 189 NF or an agent designated by NF. Purchaser shall prepay shipping charge, duties and taxes for the product to either NF or the agent from another country, and shipping charge for the return of the product to purchaser shall be paid by NF side.
  • Page 191  We assume no responsibility for influences resulting from the operations in this manual. Copyright 2006 - 2017, NF CORPORATION FRA5087 Frequency Response Analyzer Instruction Manual NF CORPORATION 6-3-20 Tsunashima Higashi,Kohoku-ku,Yokohama...
  • Page 194 NF Corporation 6-3-20, Tsunashima-higashi, Kohoku-ku, Yokohama 223-8508 JAPAN...

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