RS PRO IDM-8351 Instruction Manual
  1. Manuals
  2. Brands
  3. RS PRO Manuals
  4. Multimeter
  5. IDM-8351
  6. Instruction manual

RS PRO IDM-8351 Instruction Manual

Dual measurement multimeter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Instruction Manual
IDM-8351
Dual Measurement Multimeter
EN
FR
DE
IT
SP

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the IDM-8351 and is the answer not in the manual?

Questions and answers

Related Manuals for RS PRO IDM-8351

Summary of Contents for RS PRO IDM-8351

  • Page 1 Instruction Manual IDM-8351 Dual Measurement Multimeter...

  • Page 3: Table Of Contents

    Table of Contents Table of Contents SAFETY INSTRUCTIONS ................3 GETTING STARTED ..................9 Characteristics ............10 Appearance ..............12 Set Up ................ 22 OPERATION ....................27 Basic Measurement Overview ........29 AC/DC Voltage Measurement ........31 AC/DC Current Measurement ........37 Resistance Measurement ..........
  • Page 4 IDM-8351 Instruction Manual/English Continuity Beeper Settings ........... 80 Input Resistance Settings ..........81 Frequency/Period Input Jack Settings ......82 Digital Filter ..............83 Restore Factory Default Settings ........87 Trigger ................ 88 DIGITAL I/O....................90 Digital I/O Overview ............. 91 REMOTE CONTROL .................

  • Page 5: Safety Instructions

    SAFETY INSTRUCTIONS AFETY INSTRUCTIONS This chapter contains important safety instructions that you must follow during operation and storage. Read the following before any operation to ensure your safety and to keep the instrument in the best possible condition. Safety Symbols These safety symbols may appear in this manual or on the instrument.
  • Page 6 IDM-8351 Instruction Manual/English Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Safety Guidelines General  Make sure that the voltage input level does not exceed Guideline DC1000V/AC750V.
  • Page 7 SAFETY INSTRUCTIONS (Note) EN 61010-1:2010 specifies the measurement categories and their requirements as follows. The IDM-8351 falls under category II 600V.  Measurement category IV is for measurement performed at the source of low- voltage installation.  Measurement category III is for measurement performed in the building installation.
  • Page 8 Altitude: <2000m (Note) EN 61010-1:2010 specifies the pollution degrees and their requirements as follows. The IDM-8351 falls under degree 2.  Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”.
  • Page 9 SAFETY INSTRUCTIONS expected. In such conditions, equipment is normally protected against exposure to direct sunlight, precipitation, and full wind pressure, but neither temperature nor humidity is controlled. Storage  Location: Indoor environment  Temperature: -40°C to 70°C  Humidity: <90%RH(non-condensing) Disposal Do not dispose this instrument as unsorted municipal waste.
  • Page 10 IDM-8351 Instruction Manual/English Power cord for the United Kingdom When using the unit in the United Kingdom, make sure the power cord meets the following safety instructions. NOTE: This lead/appliance must only be wired by competent persons WARNING: THIS APPLIANCE MUST BE EARTHED...

  • Page 11: Getting Started

    GETTING STARTED ETTING STARTED This chapter describes the IDM-8351 multimeter in a nutshell, including accessories, package contents, its main features and front / rear panel introduction. Characteristics ............10 Accessories ................11 Appearance ..............12 IDM-8351 Front Panel ............... 12 Display Overview ..............

  • Page 12: Characteristics

    IDM-8351 Instruction Manual/English Characteristics The IDM-8351 is a portable, dual-display digital multimeter suitable for a wide range of applications, such as production testing, research, and field verification. Performance  DCV accuracy: 0.012%  High current range: 10A  High Voltage range: 1000V ...

  • Page 13: Accessories

    GETTING STARTED Interface  USB device port supports USBCDC and USBTMC.  RS232  Digital I/O port can used in either pass/fail testing (Compare function) or have the output state remotely controlled. Only one function at a time can be used. Software ...

  • Page 14: Appearance

    IDM-8351 Instruction Manual/English Appearance IDM-8351 Front Panel Power Switch Sense LO Terminal Sense HI Terminal Terminal SENSE INPUT 120000 Counts Dual Measurement Multimeter W 4W Main Display 1000V 200Vpk 750V POWER DC + AC RANGE Terminal 500Vpk LOCAL TEMP 2W/4W...
  • Page 15 GETTING STARTED SENSE INPUT Input This terminal is used for all measurements W 4W Terminal except for DC/AC current measurements. SENSE INPUT W 4W 1000V 200Vpk 750V 1000V COM Terminal SENSE INPUT 200Vpk Accepts ground (COM) line in all 750V W 4W 500Vpk measurements.
  • Page 16 W 4W 1000V IDM-8351 Instruction Manual/English 200Vpk 750V DC/AC 10A High range current measurement terminal. 500Vpk Terminal Accepts DC/AC Current input. For DCI or ACI details, see page 37. FUSE CAT II 600V 1.25A/1000V SENSE INPUT Sense HI Terminal W 4W Accepts HI sense line in 4W resistance measurement.
  • Page 17 GETTING STARTED Measures AC Voltage (page 31). → Measures AC Current (page 37). SHIFT EXIT (SHIFT→ACV) DCV + ACV Measures DC + AC voltage (page 31). DCI+ACI Measures DC + AC current → SHIFT EXIT (page 37). TEMP 2W/4W Measures resistance (2W or 4W) See page 41. 2W/4W TEMP TEMP...
  • Page 18 IDM-8351 Instruction Manual/English LOCAL As the 2ND key, selects the measurement item on the 2nd display (page 57). Pressing and holding for more than 1 second turns off the 2nd display. As the Local key, releases the unit from remote control and returns the instrument to local panel operation (page 99).
  • Page 19 GETTING STARTED TYPE TYPE Sets the type of filter and the size of the → SHIFT FILTER EXIT (SHIFT→ rolling window. See page 84. FILTER) MENU Enters the configuration menu for System Settings, MENU Measurement Settings, Temperature measurement settings, I/O settings, Terminal character settings and Firmware installation.
  • Page 20 IDM-8351 Instruction Manual/English RANGE Arrow Keys The arrow keys are used to navigate the menu system and edit values. The Up and Down arrow keys will also manually set the range for the voltage and current RANGE measurements. The Left and Right arrow keys will also toggle the refresh rate between the fast, medium and slow (F, M, S) rates.

  • Page 21: Display Overview

    GETTING STARTED Display Overview Primary measurement units Primary measurement Secondary Display function icons Secondary measurement units 120000 Counts Dual Measurement Multimeter n μ F AUTO HOLD RATIO UNCAL USBSTO nμF Secondary AUTOMATH LIMIT SHIFT measurement COMP FILT RS232 GPIB REAR function icons Primary Display Function status icons...

  • Page 22: Rear Panel

    IDM-8351 Instruction Manual/English Rear Panel Fuse 0.125AT/ Power Cord Digital I/O port 0.063AT Socket DIGITAL I / O LINE RATING 50 / 60 Hz 15VA MAX. FUSE LINE 100VAC 0.125AT 120VAC PASS EOM 220VAC TRIG 0.063AT SET1 SET2 SET3 SET4...
  • Page 23 GETTING STARTED RS232 RS232 port. This port is used for remote control. RS232 See page 96. Type B USB port. This port is used for remote USB Device Port control. See page 96. 17/11/2016 Version No. 002...

  • Page 24: Set Up

    IDM-8351 Instruction Manual/English Set Up Tilting the Stand From the base of the handle, gently pull the handle out sideways and then rotate it to one of the following positions. Horizontal position Tilt stand position Carry position 17/11/2016 Version No. 002...

  • Page 25: Power Up

    GETTING STARTED Power Up Steps 1. Ensure the correct line voltage is lined up with the arrow on the fuse holder. If not, see page 156 to set the line voltage and fuse. 2. Connect the power cord to the AC voltage input.
  • Page 26 IDM-8351 Instruction Manual/English Using the Any of the primary functions can be used by simply pressing the Function keys desired function key. For example: To activate the DCV function, press the DCV key. To activate a secondary function, first press the SHIFT key followed by the function key for the secondary function.
  • Page 27 GETTING STARTED Navigating the The menu system is navigated with the Up, Down, Left and Menu System Right arrow keys, the Auto/Enter key and the SHIFT/EXIT key. RANGE Auto Enter SHIFT EXIT RANGE To enter the menu system, press the MENU key. See page 154 for the System Menu tree.
  • Page 28 IDM-8351 Instruction Manual/English RANGE Auto Enter RANGE  If a setting or parameter is flashing, it indicates that that particular parameter can be edited.  Pressing the Left or Right arrow key will allow you to select a digit or character to edit.

  • Page 29: Operation

    OPERATION PERATION Basic Measurement Overview ........29 Refresh Rate ................29 Reading Indicator ..............30 Automatic/Manual Triggering ............ 30 AC/DC Voltage Measurement ........31 Select the Voltage Range ............32 Voltage Conversion Table ............34 Crest Factor Table ..............35 AC/DC Current Measurement ........
  • Page 30 IDM-8351 Instruction Manual/English Supported Dual Measurement Modes ........57 Using Dual Measurement Mode ..........58 Advanced Measurement Overview ........ 62 Supported Advanced Measurement Functions ......62 dBm/dB/W Measurement ..........63 dBm/dB Calculation ..............63 Measuring dBm/W ..............63 Measure dB ................65 Max/Min Measurement ..........

  • Page 31: Basic Measurement Overview

    OPERATION Basic Measurement Overview Refresh Rate Background The refresh rate defines how frequently the DMM captures and updates measurement data. A faster refresh rate yields a lower accuracy. A slower refresh rate yields a higher accuracy. Consider these tradeoffs when selecting the refresh rate. For further details, please see the specifications.

  • Page 32: Reading Indicator

    Automatic/Manual Triggering Overview By default, the IDM-8351 automatically triggers according to the refresh rate. See the previous page for refresh rate setting details. The TRIG IN pin of the digital I/O port or the *TRG remote command can be used to manually trigger acquisition when the trigger mode is set to EXT.

  • Page 33: Ac/Dc Voltage Measurement

    OPERATION AC/DC Voltage Measurement The IDM-8351 can measure up to 750VAC or 1000VDC, however the CATII measurement is only rated up to 600V. Set to ACV/DCV 1. Press the DCV or ACV key to measure DC or AC voltage. Measurement For AC + DC voltage, press the ACV and DCV keys at the same time.

  • Page 34: Select The Voltage Range

    IDM-8351 Instruction Manual/English SENSE INPUT W 4W 1000V 200Vpk 750V 500Vpk FUSE CAT II 600V 1.25A/1000V Select the Voltage Range The voltage range can be set automatically or manually. Auto Range To turn the automatic range selection On/Off, press the AUTO key.
  • Page 35 OPERATION 750V (AC) 10mV 765.00V 1000V (DC) 10mV 1020.00V For further details, please see the specifications on page 161. Note DC voltages with AC components cannot be accurately Note measured if the DC+AC component exceeds the dynamic range for the selected DC range. Any voltage exceeding the dynamic range will be clipped at the upper/lower range limit.

  • Page 36: Voltage Conversion Table

    IDM-8351 Instruction Manual/English The DC voltage range should be manually selected when all of the following conditions are true:  When DCV measurement is used.  When the signals being measured contain both DC and AC components.  When the amplitude of the AC component in the measured signal is higher or lower than the dynamic range of the range being currently selected by the auto-range function.

  • Page 37: Crest Factor Table

    OPERATION Rectified Sine (full wave) 1.414 0.435 0.900 PK-PK Rectified Sine (half wave) 2.000 0.771 0.636 PK-PK Square 2.000 1.000 0.000 PK-PK Rectified Square 1.414 0.707 0.707 PK-PK Rectangular Pulse 2.000 D  PK-PK D=X/Y D=X/Y Triangle Sawtooth 3.464 1.000 0.000 PK-PK Crest Factor Table...
  • Page 38 IDM-8351 Instruction Manual/English measurement. If the crest factor is less than 3.0, voltage measurement will not result in error due to dynamic range limitations at full scale. If the crest factor is more than 3.0, it usually indicates an abnormal waveform as seen from the below table.

  • Page 39: Ac/Dc Current Measurement

    OPERATION AC/DC Current Measurement The IDM-8351 DMM has two input terminals for current measurement. A 1A terminal for current less than 1A and a 10A terminal for measurements up to 10A. The units can measure 0 ~ 10A for both AC and DC current.

  • Page 40: Select The Current Range

    IDM-8351 Instruction Manual/English SENSE INPUT W 4W 1000V 200Vpk 750V 500Vpk FUSE CAT II 600V 1.25A/1000V Max 10A Select the Current Range The current range can be set automatically or manually. Auto Range To turn the automatic range selection On/Off, press the AUTO key.
  • Page 41 OPERATION Manual Range Press the Up or the Down key to select the range. The AUTO indicator turns Off automatically. If the appropriate range is unknown, select the highest range. Selectable Range Resolution Full scale INJACK Current Ranges 10mA 100nA 11.9999mA 1μA 100mA...
  • Page 42 IDM-8351 Instruction Manual/English E: The DCI offset causes the input to exceed the lower dynamic range. The DC current range should be manually selected when all of the following conditions are true:  When DCI measurement is used.  When the signals being measured contain both DC and AC components.

  • Page 43: Resistance Measurement

    OPERATION Resistance Measurement Measurement 2-wire Uses the standard V-COM ports. Recommended for Type measuring resistances larger than 1kΩ. 4-wire Compensates the test lead effect using the 4W compensation ports(HI/LO sense ports), in addition to the standard V-COM ports. Recommended for measuring sensitive resistances smaller than 1kΩ.

  • Page 44: Select The Resistance Range

    IDM-8351 Instruction Manual/English Connection For 2W measurement, connect the test leads between the VΩ terminal and the COM terminal. For 4W measurement, connect the test leads between the VΩ terminal and the COM terminal, as you would for 2W measurement. Connect the sense leads between the LO and HI sense terminals.
  • Page 45 OPERATION Selectable Range Resolution Full scale Resistance 100Ω 1mΩ 119.999Ω Ranges 1kΩ 10mΩ 1.19999kΩ 10kΩ 100mΩ 11.9999kΩ 1Ω 100kΩ 119.999kΩ 1MΩ 10Ω 1.19999MΩ 10MΩ 100Ω 11.9999MΩ 100MΩ 1kΩ 119.999MΩ For further details, please see the specifications on page 163. Note 17/11/2016 Version No.

  • Page 46: Diode Test

    IDM-8351 Instruction Manual/English Diode Test The diode test checks the forward bias characteristics of a diode by running a constant forward bias current of approximately 1mA through the DUT. Set to Diode 1. Press the key once to activate diode measurement.

  • Page 47: Capacitance Measurement

    OPERATION Capacitance Measurement The capacitance measurement function checks the capacitance of a component. Set to 1. Press the SHIFT → ) keys to activate capacitance Capacitance measurement. Measurement 2. The mode will switch to capacitance mode immediately, as shown below. Capacitance Capacitance Measurement...

  • Page 48: Select The Capacitance Range

    IDM-8351 Instruction Manual/English Select the Capacitance Range The capacitance range can be set automatically or manually. Auto Range To turn the automatic range selection On/Off, press the AUTO key. Manual Range Press the Up or the Down key to select the range. The AUTO indicator turns Off automatically.

  • Page 49: Continuity Test

    OPERATION Continuity Test The continuity test checks that the resistance in the DUT is low enough to be considered continuous (of a conductive nature). Procedure twice 1. Press the to activate continuity testing. Note: pressing the key once will activate diode testing. 2.

  • Page 50: Set Continuity Threshold

    IDM-8351 Instruction Manual/English SENSE INPUT W 4W 1000V 200Vpk 750V 500Vpk FUSE CAT II 600V 1.25A/1000V Set Continuity Threshold The continuity threshold defines the maximum resistance allowed in the DUT when testing the continuity. 0 to 1000Ω (Default Threshold:10Ω) Range Threshold 1Ω...
  • Page 51 OPERATION Display Continuity Continuity function setting indicator 17/11/2016 Version No. 002...

  • Page 52: Frequency/Period Measurement

    IDM-8351 Instruction Manual/English Frequency/Period Measurement The IDM-8351 can be used to measure the frequency or period of a signal. This function can measure either the voltage frequency/period or current frequency/period, depending on which jack the input signal is input from.

  • Page 53: Frequency/Period Settings

    OPERATION SENSE INPUT W 4W 1000V 200Vpk 750V 500Vpk FUSE CAT II 600V 1.25A/1000V Frequency/Period Settings The input voltage/current range for frequency/period measurements can be set to Auto range or to Manual. By default, the voltage/current range is set to Auto for both the period and frequency.
  • Page 54 IDM-8351 Instruction Manual/English Note Pressing the 2nd key twice will toggle the view of the second display between the voltage/current range and the menu function (FREQ or PERIOD). Note that the voltage/current range can actually still be set even when the secondary display has been toggled to show the menu function.

  • Page 55: Temperature Measurement

    OPERATION Temperature Measurement The IDM-8351 can measure temperature using a thermocouple. To measure temperature, the DMM accepts a thermocouple input and calculates the temperature from the voltage fluctuation. The thermocouple type and reference junction temperature are also considered. Temperature Thermocouple: -200°C ~ +300°C Range &...

  • Page 56: Set The Temperature Units

    IDM-8351 Instruction Manual/English SENSE INPUT W 4W 1000V 200Vpk 750V 500Vpk FUSE CAT II 600V 1.25A/1000V Set the Temperature Units ˚C, ˚F Range Units Procedure 1. Press the MENU key. 2. Go to TEMP on level 1. 3. Go to UNIT on level 2.

  • Page 57: Select Thermocouple Type

    OPERATION Select Thermocouple Type The IDM-8351 accepts thermocouple inputs and calculates the temperature from the voltage difference of two dissimilar metals. Thermocouple type and reference junction temperature are also considered. Thermocouple Type Measurement Range type and range -200 to +300˚C -200 to +300˚C...

  • Page 58: Set The Reference Junction Temperature

    IDM-8351 Instruction Manual/English Set the Reference Junction Temperature When a thermocouple is connected to the DMM, the temperature difference between the thermocouple lead and the DMM input terminal should be taken into account and be cancelled out; otherwise an erroneous temperature might be added.

  • Page 59: Dual Measurement Overview

    OPERATION Dual Measurement Overview The dual measurement mode allows you to use the 2nd display to show another item, thus allowing you to view two different measurement results on the screen. When the multimeter is used in dual measurement mode, both displays are updated from either a single measurement or from two separate measurements.

  • Page 60: Using Dual Measurement Mode

    IDM-8351 Instruction Manual/English ● ● ● ● ● ● ● Hz/P Ω ● Using Dual Measurement Mode Procedure 1. Choose one of the basic measurement functions from the table above to set the measurement mode for the primary display. For example, press DCV to set the first display to DCV measurement.
  • Page 61 OPERATION Editing the After the secondary measurement function has been Measurement activated, the rate, range and measurement item can be Parameters edited for either the primary or secondary display. Note however, it is more practical to configure the first or second measurement items before activating dual measurement mode.
  • Page 62 IDM-8351 Instruction Manual/English Connection The diagrams below describe how to connect the DMM to measure a number of common dual measurement items. Voltage and Frequency/Period measurement SENSE INPUT W 4W 1000V 200Vpk 750V 500Vpk FUSE CAT II 600V 1.25A/1000V 17/11/2016 Version No. 002...
  • Page 63 OPERATION Voltage/Frequency/Period and Current Measurement SENSE INPUT W 4W Load 1000V 200Vpk 750V 500Vpk 0~1A FUSE CAT II 600V 1.25A/1000V 0~10A Note: DC Current measurements will be displayed as a negative value as the polarity of the current leads has been reversed.

  • Page 64: Advanced Measurement Overview

    IDM-8351 Instruction Manual/English Advanced Measurement Overview Advanced measurement mainly refers to the type of measurement which uses the result obtained by one of the basic measurements: ACV, DCV, ACI, DCI, Resistance, Diode/Continuity, Frequency/Period, and Temperature. Supported Advanced Measurement Functions The following table lists all the advanced measurement functions and which of the basic measurement functions that they support.

  • Page 65: Dbm/Db/W Measurement

    OPERATION dBm/dB/W Measurement dBm/dB Calculation Overview Using the ACV or DCV measurement results, the DMM calculates the dB or dBm value based on a reference resistance value in the following way: dBm= 10 x log (1000 x Vreading / Rref) dB= dBm –...
  • Page 66 IDM-8351 Instruction Manual/English Display Reference measurement resistance AUTO HOLD nμF AUTO MATH LIMIT SHIFT COMP FILT SWEEP GPIB REAR Setting the To set the reference resistance, use the Up and Down arrow Reference keys. Resistance The selectable reference resistances are shown below.

  • Page 67: Measure Db

    OPERATION Measure dB dB is defined as [dBm−dBmref]. When the dB measurement is activated, the DMM calculates the dBm using the reading at the first moment and stores it as dBmref. Procedure 1. Select ACV or DCV measurement. See page 31. 2.

  • Page 68: Max/Min Measurement

    IDM-8351 Instruction Manual/English Max/Min Measurement Maximum and Minimum measurement function stores the highest (maximum) or lowest (minimum) reading and shows it on the first display when the 2ND key is pressed. Applicable The Max/Min function can be used with the following basic...

  • Page 69: Relative Measurement

    OPERATION Relative Measurement Relative measurement stores a value, typically the data at that instant, as the reference. The measurement following the reference is displayed as the delta between the reference. The reference value will be cleared upon exiting. Applicable The relative function can be used with the following basic measurements measurement functions: ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP,...
  • Page 70 IDM-8351 Instruction Manual/English Manually Set the 1. To manually set the relative reference value, press SHIFT → Relative REL(REL#). Reference Value The REL value is displayed on the screen at full scale. 2. Use the Left and Right arrow keys to navigate to the digit to be edited or to select the decimal point.

  • Page 71: Hold Measurement

    OPERATION Hold Measurement The Hold Measurement function retains the current measurement data and updates it only when it exceeds the set threshold (as a percentage of the retained value). Applicable The hold function can be used with the following basic measurements measurement functions: ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP...

  • Page 72: Compare Measurement

    IDM-8351 Instruction Manual/English Compare Measurement Compare measurement checks to see if the measurement data stays between a specified upper (high) and lower (low) limit. Applicable The compare function can be used with the following basic measurements measurement functions: ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP, Procedure 1.
  • Page 73 OPERATION 5. Press the Enter key to confirm the low limit settings. 6. The compare measurement results will appear immediately: If the current measurement reading is between the high and low limits, PASS will be displayed on the secondary display, If the reading is below the low limit, LOW will be displayed.

  • Page 74: Math Measurement

    IDM-8351 Instruction Manual/English Math Measurement Math Measurement Overview Math measurement runs three types of mathematical operations, MX+B, 1/X and Percentage based on the other measurement results. Applicable The math function can be used with the following basic Measurements measurement functions: ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP...

  • Page 75: Measure 1/X

    OPERATION to place the position of the decimal point. 3. Press Enter to confirm the M factor settings and to automatically move onto the B offset setting. 4. Edit the B offset in the same fashion as the M factor was edited.

  • Page 76: Measure Percentage

    IDM-8351 Instruction Manual/English 3. Press Enter to activate the 1/X math function. The results begin immediately. Display 1/X math measurement indicator AUTO HOLD nμF AUTO MATH LIMIT SHIFT COMP FILT SWEEP GPIB Deactivate Math Press the SHIFT → MX/MN(MATH) to deactivate the MATH Measurement function, or simply activate another measurement function.
  • Page 77 OPERATION 4. Press Enter to confirm the REF% setting and to begin the Percentage measurement. Display Calculated percentage % function meausurement indicator AUTO MATH Deactivate Math Press SHIFT → MX/MN to deactivate the MATH function, or Measurement simply activate another measurement function. 17/11/2016 Version No.

  • Page 78: System/Display Configuration

    IDM-8351 Instruction Manual/English YSTEM/DISPLAY CONFIGURATION View Serial Number ............. 77 View Version Number ........... 78 Brightness Settings ............79 Continuity Beeper Settings ........... 80 Input Resistance Settings ..........81 Frequency/Period Input Jack Settings ......82 Digital Filter ..............83 Digital Filter Overview ............... 83 Digital Filter Type Settings ............

  • Page 79: View Serial Number

    SYSTEM/DISPLAY CONFIGURATION View Serial Number Procedure 1. Press the MENU key. 2. Go to SYSTEM on level 1. 3. Go to S/N on level 2. 4. The serial number will be displayed across both the primary and secondary display. AUTO HOLD Display nμF...

  • Page 80: View Version Number

    4. The firmware version number will be displayed in the secondary display. 5. Press Exit to exit from the version menu. Display For details about firmware updates, please contact the RS Note PRO Service Center or visit the RS PRO website at www.rs- components.com. 17/11/2016 Version No. 002...

  • Page 81: Brightness Settings

    SYSTEM/DISPLAY CONFIGURATION Brightness Settings The display has 5 settable brightness levels. Range Brightness 1 (dim) ~ 5 (bright) Procedure 1. Press the MENU key. 2. Go to SYSTEM on level 1. 3. Go to LIGHT on level 2. 4. Set the light setting between 1 (dim) and 5 (bright). 5.

  • Page 82: Continuity Beeper Settings

    IDM-8351 Instruction Manual/English Continuity Beeper Settings The beeper setting defines how the IDM-8351 notifies the continuity test result to the user. Note: When the Beeper setting is off it will also turn off the keypad tones as well as any error or warning tones.

  • Page 83: Input Resistance Settings

    SYSTEM/DISPLAY CONFIGURATION Input Resistance Settings The 100mV and 1V DC voltage ranges can be set to an input resistance of 10MΩ or 10GΩ. This setting is only applicable for DC voltage. 10MΩ, 10GΩ Range Input resistance 10MΩ Default Procedure 1. Press the MENU key. 2.

  • Page 84: Frequency/Period Input Jack Settings

    IDM-8351 Instruction Manual/English Frequency/Period Input Jack Settings The INJACK settings set which input terminal is used for frequency or period measurements. Range Injack VOLT, 1A, 10A Default VOLT Procedure 1. Press the MENU key. 2. Go to MEAS on level 1.

  • Page 85: Digital Filter

    SYSTEM/DISPLAY CONFIGURATION Digital Filter Digital Filter Overview Filter Basics The digital filter converts the analog input signal into digital format before passing it to the internal circuits for processing. The filter affects the amount of noise included in the measurement result. Filter Type The digital filter averages a specific number of input signal samples to generate one reading.
  • Page 86 IDM-8351 Instruction Manual/English Filter Count Filter count defines the number of samples to be averaged per reading. More samples offer low noise but a longer delay between measurements. Less samples offer high noise but a shorter delay between measurements. Range: 2 ~ 320...

  • Page 87: Digital Filter Type Settings

    SYSTEM/DISPLAY CONFIGURATION Digital Filter Type Settings Procedure 1. Press SHIFT → FILTER(TYPE) to enter the (Digital Filter) Type settings menu. 2. Use the Left and Right arrow keys to navigate to the filter type setting or to select the digit to be edited. Use the Up and Down arrow keys to edit the selected digit or to toggle the filter type (REP<>MOV).
  • Page 88 IDM-8351 Instruction Manual/English Deactivate Press FILTER to deactivate the FILTER function. Digital Filter 17/11/2016 Version No. 002...

  • Page 89: Restore Factory Default Settings

    SYSTEM/DISPLAY CONFIGURATION Restore Factory Default Settings The factory default settings can be restored at anytime from the System menu. Please see the Appendix on page 155 for a list of the factory default settings. Range Factory DEF YES, NO Procedure 1.

  • Page 90: Trigger

    IDM-8351 Instruction Manual/English Trigger The measurements can be triggered internally or externally. When set to internal, the DMM will be triggered automatically according the refresh rate. When set to external, the DMM will wait for an external trigger signal from the Digital I/O port or from the *TRG command.
  • Page 91 SYSTEM/DISPLAY CONFIGURATION The *TRG command can also be used to externally trigger the DMM when the DMM is in the external trigger mode. See page 150 for details. Digital I/O Pin 5 Trigger input Digital I/O Terminal ≥10μs Pin 6 17/11/2016 Version No.

  • Page 92: Digital I/O

    IDM-8351 Instruction Manual/English IGITAL I/O Digital I/O Overview ............. 91 Normal Mode ................92 User Mode ................. 93 17/11/2016 Version No. 002...

  • Page 93: Digital I/O Overview

    DIGITAL I/O Digital I/O Overview The Digital I/O port is a dual function port. By default (Normal Mode) the port is used with the compare function to output Hi Fail, Lo Fail, Pass, and EOM (end of measurement) signals. In addition there is also a TRIG IN input pin. As a secondary function (User Mode), the Digital I/O port can have the output state of pins 1 ~4 controlled via remote control.
  • Page 94 IDM-8351 Instruction Manual/English Wiring Diagram Pins 1 ~ 4 are open-collector outputs, with a max input of Pins 1 ~ 4 30mA. All outputs are active low. Ext Vcc Digital I/O Terminal Imax = 30mA Pin 1-4 Wiring Diagram Pin 5...
  • Page 95 DIGitalio:MODE {USER|NORM|?} Commands DIGitalio{X}:SETup {ON|OFF} Procedure 1. Connect to the IDM-8351 remotely, see page 95 for remote control options. 2. Enable the user mode using the DIGitalio:MODE command. See page 145. 3. Set the state of pins 1 ~ 4 using the DIGitalio{X}:SETup command.
  • Page 96 IDM-8351 Instruction Manual/English Example DIG:MODE? Queries the mode. >NORM Returns Norm mode. DIG:MODE USER Sets to USER mode. DIG1:SETup ON Turns pin1 output on. DIG2:SETup ON Turns pin2 output on. DIG3:SETup ON Turns pin3 output on. DIG4:SETup ON Turns pin4 output on.

  • Page 97: Remote Control

    REMOTE CONTROL EMOTE CONTROL This chapter describes basic configuration of IEEE488.2 based remote control. For a command list, refer to the Command Overview chapter on page 101. Configure Remote Control Interface ......96 USB Interface ................96 Configure USB Interface ............96 Configure RS232 Interface............

  • Page 98: Configure Remote Control Interface

    IDM-8351 Instruction Manual/English Configure Remote Control Interface USB Interface The USB device port on the rear panel is used for remote control. The USB port can be configured as either a TMC or CDC interface. When configured as a TMC interface, the DMM can be controlled using National Instruments NI-Visa software*.

  • Page 99: Configure Rs232 Interface

    REMOTE CONTROL TMC (USB T&M class), CDC USB Class (Communications device class) Hardware flow control Data Bits Stop bit Steps 1. Connect the USB cable to the rear panel type B USB port. 2. Press MENU. 3. Go to I/O on level 1. 4.
  • Page 100 IDM-8351 Instruction Manual/English Steps 1. Connect the RS232 cable to the rear panel RS232 port. 2. Press MENU. 3. Go to I/O on level 1. 4. Go to RS232 on level 2 and press Enter. 5. The baud rate settings appear. Set the baud rate.

  • Page 101: Configure Eol Character

    REMOTE CONTROL Configure EOL Character Overview The TX EOL settings set the EOL (end of line) character for return messages. The EOL characters that can be received from a PC include CR, LF, CR+LF or LF+CR, with CR+LF being the most common.

  • Page 102: Return To Local Control

    IDM-8351 Instruction Manual/English Return to Local Control Background When the unit is in remote control mode, the RMT icon above the main display can be seen. When this icon is not displayed, it indicates that the unit is in local control mode.

  • Page 103: Command Overview

    COMMAND OVERVIEW OMMAND OVERVIEW The Command overview chapter lists all programming commands in functional order as well as alphabetical order. The command syntax section shows you the basic syntax rules you have to apply when using commands. Command Syntax Compatible IEEE488.2 Partial compatibility Standard...
  • Page 104 IDM-8351 Instruction Manual/English CONFigure :VOLTage CONFigure:VOLTage:DC :DCAC Command There are a number of different instrument commands and Types queries. A command sends instructions or data to the unit and a query receives data or status information from the unit. Command types...
  • Page 105 COMMAND OVERVIEW Long form CONFigure:DIODe CONFIGURE:DIODE Configure:diode Short form CONF:DIOD conf:diod Square Brackets Commands that contain square brackets indicate that the contents are optional. The function of the command is the same with or without the square bracketed items, as shown below.
  • Page 106 This parameter can be used in place of any parameter) numerical parameter where indicated. For queries, it will return the highest possible value allowed for the particular setting. Automatic The IDM-8351 automatically sets the command parameter to parameter range the next available value. selection 17/11/2016 Version No. 002...
  • Page 107 COMMAND OVERVIEW Example conf:volt:dc 2 This will set the measurement item to DC Voltage and the range to 10V. There is no 2V range so the DMM selects the next available range, 10V. Message Remote Marks the end of a command line. The Terminator Command following messages are in accordance with...

  • Page 108: Command List

    IDM-8351 Instruction Manual/English Command List Configure Commands (Display 1) CONFigure:VOLTage:DC ............. 113 CONFigure:VOLTage:AC ............. 114 CONFigure:VOLTage:DCAC ..........114 CONFigure:CURRent:DC ............. 114 CONFigure:CURRent:AC ............. 114 CONFigure:CURRent:DCAC ..........115 CONFigure:RESistance ............115 CONFigure:FRESistance ............. 115 CONFigure:FREQuency ............115 CONFigure:PERiod .............. 116 CONFigure:CONTinuity ............116 CONFigure:DIODe ...............
  • Page 109 COMMAND OVERVIEW CONFigure2:CURRent:DC ........... 119 CONFigure2:CURRent:AC ........... 119 CONFigure2:RESistance ............. 119 CONFigure2:FRESistance ........... 120 CONFigure2:FREQuency ............. 120 CONFigure2:PERiod ............120 CONFigure2:OFF ..............120 CONFigure2:FUNCtion? ............121 CONFigure2:RANGe? ............121 CONFigure2:AUTO .............. 121 CONFigure2:AUTO? ............122 17/11/2016 Version No. 002...
  • Page 110 IDM-8351 Instruction Manual/English Measure Commands MEASure:VOLTage:DC? ............. 122 MEASure:VOLTage:AC? ............122 MEASure:VOLTage:DCAC? ..........123 MEASure:CURRent:DC? ............. 123 MEASure:CURRent:AC? ............123 MEASure:CURRent:DCAC? ..........124 MEASure:RESistance? ............124 MEASure:FRESistance? ............124 MEASure:FREQuency? ............125 MEASure:PERiod? ............... 125 MEASure:CONTinuity? ............125 MEASure:DIODe? ..............125 MEASure:CAPacitance? ............
  • Page 111 COMMAND OVERVIEW Sense Commands [SENSe:]TEMPerature:TCOuple:TYPE ....... 129 [SENSe:]TEMPerature:TCOuple:TYPE? ......129 [SENSe:]TEMPerature:RJUNction:SIMulated ...... 129 [SENSe:]TEMPerature:RJUNction:SIMulated? ....130 [SENSe:]DETector:RATE ............. 130 [SENSe:]DETector:RATE? ........... 130 [SENSe:]AVERage:TCONtrol..........130 [SENSe:]AVERage:TCONtrol?..........130 [SENSe:]AVERage:COUNt ..........131 [SENSe:]AVERage:COUNt? ..........131 [SENSe:]AVERage:WINDow ..........131 [SENSe:]AVERage:WINDow?..........131 [SENSe:]AVERage:STATe ........... 131 [SENSe:]AVERage:STATe? ..........
  • Page 112 IDM-8351 Instruction Manual/English Calculate Commands CALCulate:FUNCtion ............135 CALCulate:FUNCtion? ............135 CALCulate:STATe ..............135 CALCulate:STATe? .............. 135 CALCulate:MINimum? ............135 CALCulate:MAXimum? ............135 CALCulate:HOLD:REFerence ..........136 CALCulate:HOLD:REFerence? ..........136 CALCulate:REL:REFerence ..........136 CALCulate:REL:REFerence? ..........136 CALCulate:LIMit:LOWer ............136 CALCulate:LIMit:LOWer? ............. 137 CALCulate:LIMit:UPPer ............
  • Page 113 COMMAND OVERVIEW CALCulate:MATH:PERCent? ..........139 Trigger Commands READ? .................. 140 VAL1? ................... 140 VAL2? ................... 141 TRIGger:SOURce ..............141 TRIGger:SOURce? .............. 141 TRIGger:AUTO ..............141 TRIGger:AUTO? ..............141 SAMPle:COUNt ..............142 SAMPle:COUNt? ..............142 TRIGger:COUNt ..............142 TRIGger:COUNt? ..............142 System Commands SYSTem:BEEPer:STATe .............
  • Page 114 IDM-8351 Instruction Manual/English SYSTem:SERial? ..............144 INPut:IMPedance:AUTO ............144 INPut:IMPedance:AUTO? ............ 145 DISPlay:TEXT ..............145 DISPlay:TEXT? ..............145 DISPlay:TEXT:CLEar ............145 DIGitalio:MODE ..............145 DIGitalio:MODE? ..............146 DIGitalio[1|2|3|4]:SETup ............146 DIGitalio[1|2|3|4]:SETup? ............. 146 Status Commands STATus:QUEStionable:ENABle ........... 146 STATus:QUEStionable:ENABle? ......... 146 STATus:QUEStionable:EVENt? ...........
  • Page 115 COMMAND OVERVIEW *ESE ..................148 *ESR? ................... 148 *IDN? ..................148 *OPC? .................. 149 *OPC ..................149 *PSC? ................... 149 *PSC ..................149 *RST ..................149 *SRE? ................... 149 *SRE ..................150 *STB? ................... 150 *TRG ..................150 CONFigure Commands CONFigure:VOLTage:DC Sets measurement to DC Voltage on the first display and specifies the range.
  • Page 116 IDM-8351 Instruction Manual/English CONFigure:VOLTage:AC Sets measurement to AC Voltage on the first display and specifies the range. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: CONF:VOLT:AC Sets the AC range to auto range. CONFigure:VOLTage:DCAC Sets measurement to DC+AC Voltage on the first display and specifies the range.
  • Page 117 COMMAND OVERVIEW CONFigure:CURRent:DCAC Sets measurement to DC+AC Current on the first display and specifies the range. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: CONF:CURR:DCAC 10e-2 Sets the measurement mode to DC+AC Current with a 100mA range. CONFigure:RESistance Sets measurement to 2W Resistance on the first display and specifies range.
  • Page 118 IDM-8351 Instruction Manual/English CONFigure:PERiod Sets measurement to Period on the first display and specifies the range. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: CONF:PER Sets the DMM to period measurement using the autorange. CONFigure:CONTinuity Sets measurement to Continuity on the first display.
  • Page 119 COMMAND OVERVIEW CONFigure:FUNCtion? Returns the current function on the first display. Return parameter: VOLT, VOLT:AC,VOLT:DCAC, CURR, CURR:AC,CURR:DCAC, RES, FRES, FREQ, PER, TEMP, DIOD, CONT, CAP CONFigure:RANGe? Returns the current range on the first display. Return Parameter: DCV: 0 .1(100mV), 1(1V), 10(10V), 100(100V), 1000(1000V) ACV: 0.1(100mV), 1(1V), 10(10V), 100(100V), 750(750V) ACI: 0.01(10mA), 0.1(100mA), 1(1A), 10(10A) DCI: 0.01(10mA), 0.1(100mA), 1(1A), 10(10A)
  • Page 120 IDM-8351 Instruction Manual/English CONFigure:AUTO? Returns the Auto-Range status of the function on the 1 display. Return Parameter: 0|1, 1=Auto range, 0=Manual range Secondary Display: CONFigure2 Commands CONFigure2:VOLTage:DC Sets measurement to DC Voltage on the second display and specifies the range.
  • Page 121 COMMAND OVERVIEW CONFigure2:CURRent:DC Sets measurement to DC Current on the second display and specifies the range. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: CONF2:CURR:DC 10e-3 Sets the DC current range to 10mA on the second display. CONFigure2:CURRent:AC Sets measurement to AC Current on the second display and specifies the range.
  • Page 122 IDM-8351 Instruction Manual/English CONFigure2:FRESistance Sets measurement to 4W Resistance on the second display and specifies the range. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: CONF2:FRES 10e3 Sets the range to 10kΩ on the second display. CONFigure2:FREQuency Sets measurement to Frequency on the second display and specifies the range.
  • Page 123 COMMAND OVERVIEW CONFigure2:FUNCtion? Returns the current function on the second display. Return parameter: VOLT, VOLT:AC, CURR, CURR:AC, RES, FRES, FREQ, PER, NON CONFigure2:RANGe? Returns the range of the current function on the second display. Return parameter: DCV: 0 .1(100mV), 1(1V), 10(10V), 100(100V), 1000(1000V) ACV: 0.1(100mV), 1(1V), 10(10V), 100(100V), 750(750V) ACI: 0.01(10mA), 0.1(100mA), 1(1A), 10(10A) DCI: 0.01(10mA), 0.1(100mA), 1(1A), 10(10A)
  • Page 124 IDM-8351 Instruction Manual/English CONFigure2:AUTO? Returns the Auto-Range status of the function on the 2nd display. Return Parameter: 0|1, 1=Auto range, 0=Manual range Measure Commands MEASure:VOLTage:DC? Returns the DC voltage measurement on the first display. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: MEAS:VOLT:DC? >...
  • Page 125 COMMAND OVERVIEW MEASure:VOLTage:DCAC? Returns the DC+AC voltage measurement on the first display. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: MEAS:VOLT:DCAC? > +0.10123E-01 Returns the DC+AC voltage measurement as 0.010123V. MEASure:CURRent:DC? Returns the DC current measurement on the first display. Parameter: [None] | [Range(<NRf>...
  • Page 126 IDM-8351 Instruction Manual/English MEASure:CURRent:DCAC? Returns the DC+AC current measurement on the first display. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: MEAS:CURR:DCAC? >+0.01245E-02 Returns the DC+AC current measurement as 0.1245 mA. MEASure:RESistance? Returns the 2W resistance measurement on the first display.
  • Page 127 COMMAND OVERVIEW MEASure:FREQuency? Returns the frequency measurement on the first display. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: MEAS:FREQ? > +1.00123E+03 Returns the frequency (1.00123kHz). MEASure:PERiod? Returns the period measurement on the first display. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: MEAS:PER? MAX Returns the period at the maximum range.
  • Page 128 IDM-8351 Instruction Manual/English MEASure:CAPacitance? Returns the capacitance measurement on the first display. Example: MEAS:CAP? Returns the capacitance measurement. MEASure:TEMPerature:TCOuple? Returns the temperature for the selected thermocouple type on the first display. Parameter:[NONE] | J | K | T Example: MEAS:TEMP:TCO? J >...
  • Page 129 COMMAND OVERVIEW MEASure2:VOLTage:AC? Returns the AC voltage measurement on the second display. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: MEAS2:VOLT:AC? >+0.10020E-01 Returns the AC voltage measurement as 0.010020V. MEASure2:CURRent:DC? Returns the DC current measurement on the second display. Parameter: [None] | [Range(<NRf>...
  • Page 130 IDM-8351 Instruction Manual/English MEASure2:RESistance? Returns the 2W resistance measurement on the second display. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: MEAS2:RES? > +1.05203E+03 Returns the 2W measurement. MEASure2:FRESistance? Returns the 4W resistance measurement on the second display.
  • Page 131 COMMAND OVERVIEW MEASure2:PERiod? Returns the period measurement on the second display. Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)] Example: MEAS2:PER? MAX Returns the period at the maximum range. SENSe Commands [SENSe:]TEMPerature:TCOuple:TYPE Sets thermocouple type. Parameter: Type(J | K | T) Example: SENS:TEMP:TCO:TYPE J Sets the thermocouple to type J.
  • Page 132 IDM-8351 Instruction Manual/English [SENSe:]TEMPerature:RJUNction:SIMulated? Returns temperature simulation value. Return parameter: <NR1> (+0000~+5000) ,where +0000=0.00˚C, +5000=50.00˚C [SENSe:]DETector:RATE Sets the detection rate (sample rate) Parameter: RATE(S | M | F) Example: SENS:DET:RATE S Sets the rate to slow (S). [SENSe:]DETector:RATE? Returns the sample rate.
  • Page 133 COMMAND OVERVIEW [SENSe:]AVERage:COUNt Sets the digital filter average count. Parameter: <NR1> (2~320)|MIN|MAX Example: SENS:AVER:COUN 100 Sets the digital filter average count to 100. [SENSe:]AVERage:COUNt? Returns the current digital filter average count. Return parameter: <NR1>(+002 ~ +320) [SENSe:]AVERage:WINDow Sets the digital filter window. Parameter: 0.01|0.1|1|10|0 (none) Example: SENS:AVER:WIND 0.1 Sets the digital filter window to 0.1%.
  • Page 134 IDM-8351 Instruction Manual/English [SENSe:]AVERage:STATe? Returns the state of the digital filter (on or off). Return parameter: 0|1, 0=OFF, 1=ON [SENSe:]FREQuency:INPutjack Assigns an input terminal for the frequency function. Parameter: (0|1|2) 0=volt, 1=1A, 2=10A Example: SENS:FREQ:INP 0 Sets the input jack to the Volt input terminal.
  • Page 135 COMMAND OVERVIEW [SENSe:]CONTinuity:THReshold Sets the continuity threshold in ohms. Parameter: <NRf> (0 ~ 1000) Example: SENS:CONT:THR 500 Sets the continuity threshold to 500 ohms. [SENSe:]CONTinuity:THReshold? Returns the continuity threshold. Return Parameter: <NR1> (0~1000) [SENSe:]UNIT Sets the temperature unit. Parameter: C|F Example: SENS:UNIT C Sets the temperature unit to ˚C.
  • Page 136 IDM-8351 Instruction Manual/English [SENSe:]FUNCtion[1/2] Sets the function for the first or second display. Parameter: (display1):"VOLT[:DC]", "VOLT:AC", “VOLT:DCAC”, "CURR[:DC]", "CURR:AC", “CURR:DCAC”, "RES", “FRES”, "FREQ", "PER", "TEMP:TCO", "DIOD", "CONT", “CAP” (display2): "VOLT[:DC]", "VOLT:AC", "CURR[:DC]", "CURR:AC", "RES", “FRES”, "FREQ", "PER", "NON" Example: SENS:FUNC1 "VOLT:DC"...
  • Page 137 COMMAND OVERVIEW CALCulate:FUNCtion Sets the Advanced function. Parameter: OFF | MIN | MAX | HOLD | REL | COMP | DB | DBM | MXB | INV | Example: CALC:FUNC REL Sets the Advanced function to REL (relative) CALCulate:FUNCtion? Returns the current Advanced function. CALCulate:STATe Turns the Advanced function on/off.
  • Page 138 IDM-8351 Instruction Manual/English CALCulate:HOLD:REFerence Sets the percentage threshold for the Hold function. Parameter: <NRf> (0.01, 0.1, 1, 10) Example: CALC:HOLD:REF 10 Sets the hold percentage to 10%. CALCulate:HOLD:REFerence? Returns the percentage threshold from the Hold function. CALCulate:REL:REFerence Sets the reference value for the relative function.
  • Page 139 COMMAND OVERVIEW CALCulate:LIMit:LOWer? Returns the lower limit of the compare function. CALCulate:LIMit:UPPer Sets the upper limit of the compare function. Parameter: <NRf> | MIN | MAX Example: CALC:LIM:UPP 1.0 Sets the upper limit to 1.0 CALCulate:LIMit:UPPer? Returns the upper limit of the compare function. CALCulate:DB:REFerence Sets the reference value for the dB function.
  • Page 140 IDM-8351 Instruction Manual/English CALCulate:DBM:REFerence Sets the resistance value for the dBm function. Parameter: <NRf> | MIN | MAX Example: CALC:DBM:REF MAX Sets the resistance value for dBm measurements to the maximum allowed. CALCulate:DBM:REFerence? Returns the resistance value from the dBm function.
  • Page 141 COMMAND OVERVIEW CALCulate:MATH:MBFactor? Returns the offset factor B used in the math measurement. CALCulate:MATH:PERCent Sets the reference value for the Percent function. Parameter: <NRf> | MIN | MAX Example: CALC:MATH:PERC MAX Sets the reference value for the Percent function to the maximum. CALCulate:MATH:PERCent? Returns the reference value setting for the Percent function.
  • Page 142 IDM-8351 Instruction Manual/English READ? Returns 1 and 2 display value. Example1: SAMP:COUN 4(USBTMC) READ?(count = SAMP:COUN/2, rounded up) >+0.10212E-01,+0.00000E+00,+0.10348E-01,+0.00000E+00 Queries 2 counts of measurement samples from the first and second display. Example2: SAMP:COUN 3(USBCDC or RS232) READ?(Count = 3) >+0.10212E-01,+0.00000E+00,+0.10348E-01,+0.00000E+00, +0.10123E-01, +0.00000E+00...
  • Page 143 COMMAND OVERVIEW VAL2? Returns the 2 display reading. Example: SAMP:COUN 3 (all remote interfaces) VAL2? >+0.10212E-01,+0.10348E-01, +0.10123E-01 Queries 3 counts of measurement samples from the 2 display. TRIGger:SOURce Selects the trigger source. Parameter: INT | EXT Example: TRIG:SOUR INT Sets the trigger source as internal. TRIGger:SOURce? Returns current trigger source.
  • Page 144 IDM-8351 Instruction Manual/English SAMPle:COUNt Sets the number of samples. Parameter: <NR1>(CDC:1 ~ 9999 | TMC:1 ~ 320) | MIN | MAX Example: SAMP:COUN 10 Sets the number of samples to 10. SAMPle:COUNt? Returns the number of samples. Parameter: None | MIN | MAX TRIGger:COUNt Sets the number of trigger counts.
  • Page 145 COMMAND OVERVIEW SYSTem:BEEPer:STATe Selects the beeper mode; no beep, beep on fail and beep on pass. Parameter: <NR1>(0 | 1 | 2) 0=no beep, 2=fail, 1=pass Example: SYST:BEEP:STAT 0 Turns the beeper off. SYSTem:BEEPer:STATe? Returns the beeper mode. Return parameter: Beep on Pass | Beep on Fail | No Beep SYSTem:BEEPer:ERRor Sets the beeper to sound on an SCPI error.
  • Page 146 IDM-8351 Instruction Manual/English SYSTem:ERRor? Returns the current system error, if any. SYSTem:VERSion? Returns system version. Return Parameter: X.XX. SYSTem:DISPlay Turns the Display on/off. Parameter: ON | OFF Example: SYST:DISP ON Turns the display on. SYSTem:DISPlay? Returns the status of the display...
  • Page 147 COMMAND OVERVIEW INPut:IMPedance:AUTO? Returns the input impedance mode. Return parameter: <Boolean>(0|1) (0=OFF(10M), 1=ON(10G)) DISPlay:TEXT Write a message to the display. Parameter: Text can contain alphanumeric characters including spaces, ‘+’, ‘-‘, ‘/’, up to 13 characters. Example: DISP:TEXT “DMM TEST” Write “DMM TEST” to the display. DISPlay:TEXT? Returns the displayed message.
  • Page 148 IDM-8351 Instruction Manual/English DIGitalio:MODE? Returns the Digital I/O mode. Return parameter: NORM|USER DIGitalio[1|2|3|4]:SETup Sets the status for Digital I/O(only for user mode). Parameter: ON|OFF Example: DIG1:SET ON DIGitalio[1|2|3|4]:SETup? Returns the Digital I/O status (only for User mode). Return parameter: 0|1, 0=OFF, 1=ON...
  • Page 149 COMMAND OVERVIEW STATus:PRESet Clears the Questionable Data Enable register. Example: STAT:PRES Interface Commands SYSTem:LOCal Enables local control (front panel control) and disables remote control. SYSTem:REMote Enables remote control and disables local control (front panel control). Local control can be recalled by pressing the 2ND or local button. SYSTem:RWLock Enables remote control and disables local control (front panel control).
  • Page 150 IDM-8351 Instruction Manual/English *ESE? Returns the ESER (Event Status Enable Register) contents. Example: *ESE? >130 Returns 130. ESER=10000010 *ESE Sets the ESER contents. Parameter: <NR1> (0~255) Example: *ESE 65 Sets the ESER to 01000001 *ESR? Returns SESR (Standard Event Status Register) contents.
  • Page 151 COMMAND OVERVIEW *OPC? “1” is placed in the output queue when all the pending operations are completed. *OPC Sets the operation complete bit (bit0) in SERS (Standard Event Status Register) when all pending operations are completed. *PSC? Returns power On clear status. Return parameter: <Boolean>(0|1) 0= don’t clear, 1=clear *PSC Clears power On status.
  • Page 152 IDM-8351 Instruction Manual/English *SRE Sets SRER contents. Parameter: <NR1>(0~255) Example: *SRE 7 Sets the SRER to 00000111. *STB? Returns the SBR (Status Byte Register) contents. Example:*STB? >64 Returns the contents of the SBR as 01000000. *TRG Manually triggers the DMM.
  • Page 153 COMMAND OVERVIEW For the following command sets, please refer to the status system diagram on page 159. STAT: QUES:EVEN? STAT: QUES: ENAB STAT: QUES: ENAB? *ESR? *ESE *ESE? *STB? *SRE *SRE? 17/11/2016 Version No. 002...

  • Page 154: Faq

    IDM-8351 Instruction Manual/English The DMM performance doesn’t match the specifications. Make sure the device is powered On for at least 30 minutes, within 18~28˚C. This is necessary to stabilize the unit to match the specifications. The measured voltage does not match the expected value.
  • Page 155 5. Ensure that an appropriate range setting is used. If a too-large range is used, the resolution or the measurement may be affected. For more information, contact your local dealer or RS PRO at www.rs-components.com. 17/11/2016 Version No. 002...

  • Page 156: Appendix

    IDM-8351 Instruction Manual/English PPENDIX System Menu Tree LEVEL 1 SYSTEM MEAS TEMP TX TERM LEVEL 2 UPDATE Vx.xx LEVEL 2 TX EOL CR+LF LF+CR LEVEL 2 RS232 USB-CDC 9600 USB-TMC 19200 38400 57600 115200 LEVEL 2 SENSOR UNIT TYPE J 23.00...

  • Page 157: Factory Default Settings

    APPENDIX Factory Default Settings Measurement Item Range AUTO Rate SYSTEM Menu BEEP: Pass LIGHT: 3 S/N: N/A FACTORY: NO MEAS Menu CONT: 0010Ω INJACK: VOLT INPUT R: 10M TEMP Menu SENSOR: TYPE J SIM: 23.00 UNIT: C I/O Menu USB: USB-CDC TX Term EOL:CR+LF 17/11/2016 Version No.

  • Page 158: Replacing The Ac Source Fuse

    IDM-8351 Instruction Manual/English Replacing the AC Source Fuse Fuse Ratings Type Rating Size 0.125AT 100VAC, 120VAC 5mm X 20mm 0.063AT 220VAC, 240VAC 5mm X 20mm Only replace the fuse with a fuse of the correct type and Note rating. Steps 1.

  • Page 159: Replacing The Input Fuse

    APPENDIX Replacing the Input Fuse Fuse Rating Type Rating Size F1.25A 1.25A 1000V 6.3mm X 32mm Only replace the fuse with a fuse of the correct type and Note rating. Steps 1. Turn the DMM off. 2. Press the fuse holder with your finger and turn anticlockwise. This will release the fuse holder from the panel.
  • Page 160 IDM-8351 Instruction Manual/English 4. Push the fuse holder back into the panel and turn clockwise when the fuse holder is level with the front panel. 17/11/2016 Version No. 002...

  • Page 161: Status System

    APPENDIX Status system The diagram below is a description of the status system For the following command sets, please refer to the diagram above. STAT: QUES: EVEN? STAT: QUES: ENAB STAT: QUES: ENAB? *ESR? 17/11/2016 Version No. 002...
  • Page 162 IDM-8351 Instruction Manual/English *ESE *ESE? *STB? *SRE *SRE? 17/11/2016 Version No. 002...

  • Page 163: Specifications

    APPENDIX Specifications The specifications apply when the DMM is warmed up for at least 30 minutes and operates in the slow rate. Below are the basic conditions required to operate the DMM within specifications:  Calibration: Yearly  Accuracy: ± (% of Reading + Digits) ...
  • Page 164 IDM-8351 Instruction Manual/English Power Consumption: Max 15VA Dimensions: 107mm(H) X 264.4mm(D) X 300.2mm(L) (with bumpers) 88mm(H) X 228mm(D) X 276mm(L) (without bumpers) Weight: Approximately 2.9 kg DC Voltage Range Resolution Full Scale Accuracy 100.000mV 0.001mV 119.999 0.012% + 8 1.00000 V 0.00001V...
  • Page 165 APPENDIX Range Resolution Maximum reading Accuracy 0.0001 V 5.9999V 0.05% + 15 *The diode test Current is 1mA. *Accuracy specifications are for the voltage measured at the input terminals only. Continuity Range Resolution Maximum reading Accuracy 1000.00Ω 0.01Ω 1199.99 0.05% + 5 * Without REL function, add 0.2Ω...
  • Page 166 IDM-8351 Instruction Manual/English 100.000mV 0.001mV 119.999 1% + 100 0.3% + 100 1.5% +300 5% + 300 1.00000 V 0.00001V 1.19999 1% + 100 0.2% + 100 1% +100 3% + 200 10.0000 V 0.0001V 11.9999 1% + 100 0.2% + 100...
  • Page 167 APPENDIX [1] 750Vac range limited to 100kHz or 8x10 Volt-Hz on other ranges. Voltage Measurement Sensitivity Range 10 Hz to 100kHz 100kHz to 1MHz 100mV 40mVrms 0.3Vrms At least 5% of voltage range 1Vrms 10V ~ 750V At least 5% of voltage range At least 5% of voltage range * Note: When the input level is greater than the full scale range, “VAC OL”, will be shown.
  • Page 168 IDM-8351 Instruction Manual/English [1]10nF capacitance measurements may be affected by the stray capacitance on the test cables. Before testing, use the REL function to compensate for the stray capacitance from the test cables. 17/11/2016 Version No. 002...

  • Page 169: Additional Specifications

    APPENDIX Additional Specifications The Additional Specifications apply in addition to the Specifications listed on page 161 when the operating temperature exceeds 18˚C ~ 28˚C. DC Voltage Measurement method: Sigma Delta A-to-D converter. Input protection: 1000V peak on all ranges. Range Typical Input Impedance 10.0 MΩ±2% or >10GΩ...
  • Page 170 IDM-8351 Instruction Manual/English ＜1.5V 100mA 1.1Ω 0.1Ω ＜0.8V 0.01Ω ＜0.6V Rate Additional Rate Error Count Fast AC Voltage (AC Coupling Mode/AC + DC Coupling Mode) Measurement method: AC coupled true RMS - measure the AC component with up to 400 VDC bias on any range.
  • Page 171 APPENDIX 1.00000 V 0.2% + 500 1% +500 3% + 1000 10.0000 V 0.2% + 500 1% +500 3% + 1000 100.000 V 0.2% + 500 1% +500 3% + 1000 750.00 V 0.2% + 500 1% +500 3% + 1000 *The accuracy of ACV+DCV is equal to ACV’s with 10 more digits added.
  • Page 172 IDM-8351 Instruction Manual/English ＜0.15V 10mA 1.1Ω ＜1.5V 100mA 1.1Ω ＜0.8V 0.1Ω ＜0.6V 0.01Ω Resistance (2-wire resistance and 4-wire resistance) Measurement method: 2-wire resistance or 4-wire resistance. Open-circuit voltage: Approximately 7.5 VDC. Input protection: 500Vpeak on all ranges. Diode Measurement method: 1mA ±2% constant current source.
  • Page 173 APPENDIX Rate Additional Rate Error Count Fast Frequency Measurement method: Reciprocal counting technique. Ω Input impedance: 1M ± 2% in parallel with <100pF on all ranges. Maximum input voltage: 750 Vrms on all ranges. Input protection: 1200V peak on all ranges with gas discharge. Refresh Rate Gate Time(sec) Slow...
  • Page 174 IDM-8351 Instruction Manual/English As measuring capacitance with the DMM is effectively a DC measurement, the measured capacitance tends to be higher than what is measured by LCR meters. For best measurement results, first perform a zeroing of the test leads when the cables are “open”...

  • Page 175: Dimensions

    APPENDIX Dimensions IDM-8351 Units = mm. 120000 Counts Dual Measurement Multimeter SENSE INPUT W 4W 1000V 200Vpk 750V POWER DC + AC RANGE LOCAL 500Vpk TEMP 2W/4W Hz/P Auto REL# MATH COMP TYPE Enter FUSE SHIFT CAT II 600V MX/MN...

  • Page 176: Declaration Of Conformity

    IDM-8351 Instruction Manual/English Declaration of Conformity We declare that the below mentioned product Type of Product: Dual Measurement Multimeter Model Number: IDM-8351 are herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Law of Member States relating to the Electromagnetic...

  • Page 177: Index

    INDEX NDEX Accessories .......... 11 Caution symbol........3 Advanced measurement Cleaning the instrument ......6 compare ..........70 Command IEE488.2 commands..147 dB_ ............65 Command set dBm/dB calculation ........63 CALCulate commands ......134 dBm/W ............ 63 CONFigure commands ......113 Digital filter settings .........
  • Page 178 IDM-8351 Instruction Manual/English Declaration of conformity ....174 Input jack settings ......... 82 Digital I/O ..........90 Input resistance ........81 Normal mode ........... 92 Main features ........10 Overview ..........91 Marketing User mode ..........93 contact ..........153 Diode Menu tree ...........
  • Page 179 INDEX Service operation Tilt stand ..........22 about disassembly ........4 Trigger settings........88 contact ..........153 Triggering ..........30 Specifications ........161 UK power cord........8 Status system ........159 Version number ........78 System menu tree ......154 Voltage Temperature comparison table ........
  • Page 180 Some states or countries laws vary, so the above limitations or exclusions may not apply to you. For full terms and conditions, refer to the RS PRO website. 17/11/2016 Version No. 002...
  • Page 181 Africa RS Components SA P.O. Box 12182, Vorna Valley,1686 20 Indianapolis Street, Kyalami Business Park, Kyalami, Midrand, South Africa Asia RS Components Pte Ltd. 31 Tech Park Crescent Singapore 638040 China RS Components Ltd. Suite 23 A-C East Sea Business Centre Phase 2 No.

Table of Contents