Gw-instek GDM-8200A User Manual User Manual

Digital Multimeter GDM-8200A Series USER MANUAL GW INSTEK PART NO. 82DM-8255AE E1 ISO-9001 CERTIFIED MANUFACTURER

GDM-8200A Series User Manual 10 GDM-8200A Series Lineup The GDM-8200A series consists of two models: GDM-8251A and GDM-8255A. Appearance Both tw

GDM-8200A Series User Manual 100 Command Set  Commands are non-case sensitive.  Underline means a single space (dc_1→DC 1V).  When the param

REMOTE CONTROL 101 conf:per Sets measurement to Period and specifies range. conf:cont Sets measurement to Continuity. conf:diod Sets measureme

GDM-8200A Series User Manual 102 sens:aver:tcon Selects digital filter type. Parameter: mov (moving), rep (repeating) Example: sens:aver:tcon_mov

REMOTE CONTROL 103 calc:aver:min? Returns minimum value stored. calc:aver:max? Returns maximum value stored. calc:aver:aver? Returns average v

GDM-8200A Series User Manual 104 calc:math:perc Sets target value in Math measurement. Parameter: NR2 Example: calc:math:perc_50 (target set to 50

REMOTE CONTROL 105 trac:cle Clears buffer contents. SYStem related command syst:disp Turns display On or Off. Parameter: Boolean Example: dis

GDM-8200A Series User Manual 106 *ese <0~255> Sets ESER contents. Example: *ese 65 sets ESER to 01000001 *esr? Returns and clears SESR (Stan

REMOTE CONTROL 107 rout:chan Configure channel in advanced mode. Parameter: Channel, Function, Range, Auto Range Example: rout:chan 101, 1, 2,

GDM-8200A Series User Manual 108 conf2:freq Configure 2nd display to Frequency. conf2:per Configure 2nd display to Period. conf2:temp Configure 2n

FAQ 109 FAQ ● What is the Output key used for? ● I pressed the EXIT key but cannot get out of Scanner mode. ● The GDM-8200A series performan

GETTING STARTED 11 GDM-8200A Series Characteristics The GDM-8200A series are portable, dual-display digital multimeters suitable for wide rang

GDM-8200A Series User Manual 110 APPENDIX System Info Firmware Version ... 110 Fuse Replacement Rep

APPENDIX 111 Firmware Version Background Firmware version is available for viewing system information. Firmware version Shows the GDM-8200A

GDM-8200A Series User Manual 112 Fuse Replacement Replace AC source fuse Step 1. Take off the power cord and remove the fuse socket using a min

APPENDIX 113 Replace input current fuse Step 1. Press the Fuse holder. 2. The fuse holder comes out. Replace the fuse inserted at the end

GDM-8200A Series User Manual 114 Specifications General Note  All specifications are ensured only under a single display.  At least 30 minute

APPENDIX 115 DC Voltage Note  Max. Input: 1000V DC or Peak on all range Rate Range Resolution Full Scale (8251A) Full Scale (8255A) Accurac

GDM-8200A Series User Manual 116 F 100.0mV 100µV 120.0mV 199.9mV 1.000V 1mV 1.200V 1.999V 10.00V 10mV 12.00V 19.99V 100.0V 100mV 120.0V 199.9V 750

APPENDIX 117 AC Current Note  The specifications are only applicable for sinusoidal signals with amplitudes greater than 5% of the Full Sc

GDM-8200A Series User Manual 118 2W Resistance Note  Max. Input: 500V DC or 500V rms AC  *: Relative mode  When measuring resistances hi

APPENDIX 119 100.000MΩ 120.000MΩ 199.999MΩ 3.0% + 8 M 100.00Ω 120.00Ω 199.99Ω 0.05% + 5 1.0000kΩ 1.2000kΩ 1.9999kΩ 0.05% + 3 10.000kΩ 12.000kΩ

GDM-8200A Series User Manual 12 Front Panel Overview Measurement keysMainTerminal4W OhmTerminalFusePower SwitchMain DisplayDCI/ACITerminalOutput O

GDM-8200A Series User Manual 120 Optional Scanner Channel 2-wire: 16 pairs, 4-wire: 8 pairs, single-wire: N/A Maximum voltage 250V Maximum curr

APPENDIX 121 EC Declaration of Conformity We GOOD WILL INSTRUMENT CO., LTD. (1) No.7-1, Jhongsing Rd., Tucheng Dist., New Taipei City, Taiwan (2

GDM-8200A Series User Manual 122 INDEX 2 2nd display front panel key ... 16 measurement overview ...

INDEX 123 command set ... 103 front panel key ... 14 setting ...

GETTING STARTED 13 COM Terminal Accepts ground (COM) line in all measurements except the sense line in 4W Resistance (page30). Voltage/ 2W Ω

GDM-8200A Series User Manual 14 SHIFT → DCV (STEP) Starts the step measurement (page80) using the optional scanner. ACV + DCV When the ACV key

GETTING STARTED 15 (Temperature) Measures Temperature (page37). SHIFT + TEMP (SENSOR) Selects the type of thermocouple used in the Temperat

GDM-8200A Series User Manual 16 MX/MN (MAX/ MIN) Measures the Maximum or the Minimum value (page45). SHIFT → MX/MN (FILTER) Selects the digital

GETTING STARTED 17 Rear Panel Overview RS-232C PortOptional Item Slot x2Power Cord SocketFuseT3.15A/250VCAL Key PortDigital I/O PortUSB Device

GDM-8200A Series User Manual 18 Digital I/O port Accepts a digital I/O cable for the Hi/Lo limit test; DB-9 pin, female connector. For digital I/

GETTING STARTED 19 Set Up Tilt Stand Tilt stand steps Pull out the handle sideways and rotate it. Place the unit horizontally, Or in the

March 2013 This manual contains proprietary information, which is protected by copyrights. All rights are reserved. No part of this manual may be ph

GDM-8200A Series User Manual 20 Power Up Power up steps 1. Connect the power cord to the AC Voltage input. Note Make sure the ground connecto

BASIC MEASUREMENT 21 BASIC MEASUREMENT Overview Basic Measurement Overview ... 22 Common attribut

GDM-8200A Series User Manual 22 Basic Measurement Overview Background Basic measurement refers to the eight types of measurements assigned to th

BASIC MEASUREMENT 23 2. The refresh rate indicator shows the current status. → → → Common attribute: reading indicator Background The read

GDM-8200A Series User Manual 24 AC/DC/AC+DC Voltage Measurement Voltage type AC 0 ~ 750V DC 0 ~ 1000V AC+DC 0 ~ 1000V AC2+DC2*AC+DC= (AC = tr

BASIC MEASUREMENT 25 Select Voltage range Auto range To turn the automatic range selection On/Off, press the AUTO key. Manual range Press th

GDM-8200A Series User Manual 26 Voltage conversion table This table shows the relationship between AC, DC, and AC+DC reading in various waveforms.

BASIC MEASUREMENT 27 Crest factor table Background Crest factor is the ratio of the peak signal amplitude to the RMS value of the signal. It

GDM-8200A Series User Manual 28 AC/DC/AC+DC Current Measurement Current type AC 0 ~ 10A DC 0 ~ 10A AC+DC 0 ~ 10A AC2+DC2*AC+DC= (AC = true RM

BASIC MEASUREMENT 29 Select Current range Auto range To turn the automatic range selection On/Off, press the AUTO key. Manual range Press th

Table of Contents 3 Table of Contents SAFETY INSTRUCTIONS ... 5 Safety Symbols ...

GDM-8200A Series User Manual 30 2W/4W Resistance Measurement Measurement type 2-wire Uses the standard V-COM ports. Recommended for measuring res

BASIC MEASUREMENT 31 Select Resistance range Auto range To turn the automatic range selection On/Off, press the AUTO key. Manual range Press

GDM-8200A Series User Manual 32 Diode Test Background Diode test checks the forward bias characteristics of a diode by running a constant forwar

BASIC MEASUREMENT 33 Continuity Test Background Continuity test checks that the resistance in the DUT is low enough to be considered continuo

GDM-8200A Series User Manual 34 Set continuity threshold Background Continuity threshold defines the maximum resistance allowed in the DUT when t

BASIC MEASUREMENT 35 Select beeper setting Background Beeper setting defines how the GDM-8200A series notifies the continuity test result to

GDM-8200A Series User Manual 36 Frequency/Period Measurement 1. Activate frequency/period measurement To measure Frequency, press the Hz/P key on

BASIC MEASUREMENT 37 Temperature Measurement Background The GDM-8200A series accepts thermocouple input and calculates the temperature from t

GDM-8200A Series User Manual 38 Select thermocouple type Background The GDM-8200A series assumes that a certain type of thermocouple, which read

BASIC MEASUREMENT 39 Set reference junction temperature Background When a thermocouple is connected to the GDM-8200A series, the temperature

GDM-8200A Series User Manual 4 Digital Filter Setting ... 62 Display Setting ...

GDM-8200A Series User Manual 40 ADVANCED MEASUREMENT Overview Advanced Measurement Overview ... 41 Common attr

ADVANCED MEASUREMENT 41 Advanced Measurement Overview Background Advanced measurement mainly refers to the type of measurement which uses th

GDM-8200A Series User Manual 42 2. The refresh rate indicator shows the current status. → → → Common attribute: reading indicator Background T

ADVANCED MEASUREMENT 43 dBm/dB Measurement Applicable to (NOT applicable to ACV+DCV) Background Using the ACV or DCV measurement result,

GDM-8200A Series User Manual 44 Deactivate dBm measurement To cancel the dBm measurement, press the Shift key followed by the key, or simply act

ADVANCED MEASUREMENT 45 Max/Min Measurement Applicable to ( )+( )+ Background Maximum and Minimum measurement stores the highest (maximum) or

GDM-8200A Series User Manual 46 Relative Value Measurement Applicable to ( )+( )+ Background Relative measurement stores a value, typically the d

ADVANCED MEASUREMENT 47 2. Use the Left/Right key to move the flashing point (cursor), and use the Up/Down key to change the value. 3. P

GDM-8200A Series User Manual 48 Hold Measurement Applicable to ( )+( )+ Background Hold measurement retains the current measurement data and upda

ADVANCED MEASUREMENT 49 Compare Measurement Applicable to ( )+( )+ Background Compare measurement checks and updates if the measurement data

SAFETY INSTRUCTIONS 5 SAFETY INSTRUCTIONS This chapter contains important safety instructions that you must follow when operating the GDM-8200

GDM-8200A Series User Manual 50 3. Low limit setting 1st display Shows the low limit value 2nd display Indicates low limit setting 1. Use th

ADVANCED MEASUREMENT 51 5. Result High If the 2nd display shows High, the result is above the High limit. Digital I/O: FAIL Out (Pin 6) a

GDM-8200A Series User Manual 52 Math Measurement Applicable to ( )+( )+ Background Math measurement runs three types of mathematical operation,

ADVANCED MEASUREMENT 53 2. Change the parameter using the Up/Down key. 3. Press the ENTER key to confirm editing and move to offset setti

GDM-8200A Series User Manual 54 Measure 1/X 1. Activate 1/X Press the Shift key, the 2/4W (Math) key, the Down key twice. The 1/X setting appears

ADVANCED MEASUREMENT 55 1. Use the Left/Right key to move the cursor (flashing point) between high/low setting, digits, and decimal point.

GDM-8200A Series User Manual 56 2W* (see Note) ● ● ● ● ● Hz/P ● ● ● ● ● TEMP — — — — — — — — — — Note  In the dual display mode, the resistance

SYSTEM/DISPLAY CONFIGURATION 57 SYSTEM/DISPLAY CONFIGURATION Refresh Rate Refresh Rate Setting ...

GDM-8200A Series User Manual 58 Refresh Rate Setting Background Refresh rate defines how frequently the GDM-8200A series captures and updates the

SYSTEM/DISPLAY CONFIGURATION 59 Trigger Setting Manual/Automatic triggering Automatic triggering (default) The GDM-8200A series triggers acco

GDM-8200A Series User Manual 6 Safety Guidelines General Guideline CAUTION  Make sure that the voltage input level does not exceed DC1000V/AC

GDM-8200A Series User Manual 60 1. Activate external trigger Press the Shift key followed by the TRIG key. The EXT indicator appears on the displa

SYSTEM/DISPLAY CONFIGURATION 61 3. Move the flashing point (cursor) using the Left/Right key. Change the value using the Up/Down key. 4

GDM-8200A Series User Manual 62 Digital Filter Setting Overview Filter basic The GDM-8200A series internal digital filter converts the analog inp

SYSTEM/DISPLAY CONFIGURATION 63 Filter setting Turn on Filter 1. Press the Shift key followed by the MX/MN (Filter) key. 1st display Sh

GDM-8200A Series User Manual 64 Display Setting Display light setting Background Display light setting adjusts the brightness of the display rea

SYSTEM/DISPLAY CONFIGURATION 65 Display on/off setting (+ key lock) Background The display can be turned off when not used for a long time.

GDM-8200A Series User Manual 66 STORE/RECALL The GDM -8200A Series can store and recall measurement history (for up to 1000 counts) as well as the

STORE/RECALL 67 Store Measurement Record Background The GDM-8200A series can store the measurement history which can be recalled later for ob

GDM-8200A Series User Manual 68 Recall Measurement Record Background The GDM-8200A series can recall the stored measurement history for observati

STORE/RECALL 69 Save Instrument Settings Background The GDM-8200A series can save up to ten instrument settings. The settings can save the st

SAFETY INSTRUCTIONS 7 Fuse WARNING  Fuse type: T3.15A/ 250V  Make sure the correct type of fuse is installed before power up.  To ens

GDM-8200A Series User Manual 70 Recall Instrument Settings Background The Recall function to enables saved settings to be recalled at power up.

SCANNER (OPTIONAL) 71 SCANNER (OPTIONAL) The optional scanner GDM-SC1 lets you effectively measure multiple channels connected to a single GDM

GDM-8200A Series User Manual 72 GDM-SC1 Scanner Specifications 2-wire channel 16 pairs Maximum current 2A (ch17, ch18) 4-wire channel 8 pairs Res

SCANNER (OPTIONAL) 73 3. The connection terminals appear. Overview 16 general purpose channels are available, 8 on the left row, 8 on th

GDM-8200A Series User Manual 74 Select Channel group and enable scanner Background 2 groups, 16 channels each, are available for the scanner. Gr

SCANNER (OPTIONAL) 75 Connect wire Wire selection Make sure the wires have at least the same Voltage and Current capacity as the maximum rati

GDM-8200A Series User Manual 76 Note When using thermocouple wiring, please use extension wires so that the cold junction points are external to t

SCANNER (OPTIONAL) 77 Insert scanner Power Off Turn the Power Off and take off the power cord. Open the GDM-8200A series rear panel slot

GDM-8200A Series User Manual 78 Insert the scanner Insert the scanner (already configured according to the procedures on page72) to either of the

SCANNER (OPTIONAL) 79 Scanner Configuration Record Channel Wire color Measure type Note CH1 H L CH2 H L CH3 H L CH4 H L CH5 H L CH6

GDM-8200A Series User Manual 8 Power cord for the United Kingdom When using the GDM-8200A series in the United Kingdom, make sure the power cord m

GDM-8200A Series User Manual 80 Setup Scan Overview Scan type Simple Sets the scanned channel range, loop count, and timer length. All channels h

SCANNER (OPTIONAL) 81 Setup Simple Scan Panel operation 1. Press the Shift key, the 2ND key (MENU), the Left key. The Scan menu appears.

GDM-8200A Series User Manual 82 6. Move the cursor to the channel using the Left/Right key, and change the value using the Up/Down key. Rang

SCANNER (OPTIONAL) 83 Setup Advanced Scan Panel operation 1. Press the Shift key, the 2ND key (MENU), the Left key. The Scan menu appears.

GDM-8200A Series User Manual 84 6. Move the cursor to the channel using the Left/Right key, and change the value using the Up/Down key. Rang

SCANNER (OPTIONAL) 85 13. Set the measurement condition.  To select measurement item, press the target key.  To select Auto rang

GDM-8200A Series User Manual 86 Use external trigger Background The GDM-8200A series uses the internal trigger by default. Using an external trig

SCANNER (OPTIONAL) 87 Run Scan Overview Scan operation type Scan Measures all specified channel range at each trigger event. Timer setting (p

GDM-8200A Series User Manual 88 Recall Scan/Step result Panel operation 1. After the Scan/Step is completed, the data is stored internally. Pres

SCANNER (OPTIONAL) 89 3. Press the Down key. The channel selection appears. 4. Move the cursor to the channel using the Left/Right key,

GETTING STARTED 9 GETTING STARTED This chapter describes the GDM-8200A series in a nutshell, including its main features, package contents, an

GDM-8200A Series User Manual 90 DIGITAL I/O The rear panel Digital I/O terminal outputs the result of Compare measurement to external devices.

DIGITAL I/O 91 Digital I/O Terminal Configuration Background The digital I/O terminal outputs the result of Compare measurement to control e

GDM-8200A Series User Manual 92 Application: Compare measurement Applicable to ( )+( )+ Background Compare measurement checks and updates if the

DIGITAL I/O 93 Set the low limit in the same way as in the high limit. Press the ENTER key to confirm editing. The compare measurement starts

GDM-8200A Series User Manual 94 Application: External trigger Background The GDM-8200A series uses the internal trigger by default, for example t

REMOTE CONTROL 95 REMOTE CONTROL Interface Overview ... 96 Configure USB inter

GDM-8200A Series User Manual 96 Configure Interface Overview Interface type USB Device USB 1.1 or 2.0, TypeA, female connector. RS-232C D-sub 9

REMOTE CONTROL 97 5. Press the ENTER key to confirm USB selection. 6. Press the Exit key to go back to the default display. 7. Connect

GDM-8200A Series User Manual 98 6. Press the Exit key to go back to the default display. 7. Connect the RS-232C cable to the rear panel termi

REMOTE CONTROL 99 Command Syntax The commands are partially compatible with IEEE488.2 (1992) and SCPI (1994) standard. Commands are NON-case s