GW Instek GDM-834 Series User Manual Download Page 37

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OPERATION

Voltage Conversion Table

This table shows the relationship between an AC and DC reading
for various waveforms.

Waveform

Peak to Peak AC (True RMS)

Sine

PK-PK

2.828

1.000

0.000

Rectified Sine (full wave)

PK-PK

1.414

0.435

0.900

Rectified Sine (half wave)

PK-PK

2.000

0.771

0.636

Square

PK-PK

2.000

1.000

0.000

Rectified Square

PK-PK

1.414

0.707

Rectangular Pulse

PK-PK

2.000

2K
K=

)

(



D=X/Y

2D

D=X/Y

Triangle Sawtooth

PK-PK

3.464

1.000

0.000

www.

GlobalTestSupply

.com

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[email protected]

Summary of Contents for GDM-834 Series

Page 1: ...Dual Measurement Multimeter GDM 834X Series USER MANUAL GW INSTEK PART NO 82DM 83420E01 ISO 9001 CERTIFIED MANUFACTURER www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 2: ...nother language without prior written consent of Good Will company The information in this manual was correct at the time of printing However Good Will continues to improve products and reserves the rights to change specification equipment and maintenance procedures at any time without notice www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 3: ... 46 Continuity Test 48 Frequency Period Measurement 51 Temperature Measurement 53 Dual Measurement Overview 57 Advanced Measurement Overview 62 dBm dB W Measurement 63 Max Min Measurement 66 Relative Measurement 67 Hold Measurement 69 Compare Measurement 70 Math Measurement 72 SYSTEM DISPLAY CONFIGURATION 76 View Serial Number 77 View Version Number 77 Brightness Settings 78 Input Resistance Setti...

Page 4: ...rol Interface 102 Return to Local Control 105 COMMAND OVERVIEW 106 Command Syntax 106 Command List 111 FAQ 142 APPENDIX 143 System Menu Tree 143 Factory Default Settings 144 Replacing the AC Source Fuse 145 Replacing the Input Fuse 146 Status system 148 Specifications 149 Dimensions 155 Declaration of Conformity 156 INDEX 157 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestS...

Page 5: ... Warning Identifies conditions or practices that could result in injury or loss of life CAUTION Caution Identifies conditions or practices that could result in damage to the DMM or to other properties DANGER High Voltage Attention Refer to the Manual Protective Conductor Terminal Earth ground Terminal Do not dispose electronic equipment as unsorted municipal waste Please use a separate collection ...

Page 6: ...ource of a low voltage installation or at building installations Note below Do not disassemble the instrument unless you are qualified as service personnel Make sure that the COM terminal to earth is limited to 500Vpk Note EN 61010 1 2010 specifies the measurement categories and their requirements as follows The GDM 834X falls under category II 600V Measurement category IV is for measurement perfo...

Page 7: ...rating Disconnect the power cord before fuse replacement Make sure the cause of a fuse blowout is fixed before fuse replacement Cleaning the Instrument Disconnect the power cord before cleaning Use a soft cloth dampened in a solution of mild detergent and water Do not spray any liquid Do not use chemicals containing harsh material such as benzene toluene xylene and acetone Operation Environment Lo...

Page 8: ...ed Pollution degree 3 Conductive pollution occurs or dry non conductive pollution occurs which becomes conductive due to condensation which is 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 environment Location Indoor Temperature 10 C to 70 C Humidity 0 3...

Page 9: ... the letter N or coloured Blue or Black The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red If in doubt consult the instructions provided with the equipment or contact the supplier This cable appliance should be protected by a suitably rated and approved HBC mains fuse refer to the rating information on the equipment and or user...

Page 10: ...utshell including accessories and package contents their main features and front rear panel introduction Characteristics 11 Accessories 12 Package Contents 13 Appearance 14 GDM 8342 8341 Front Panel 14 Display Overview 20 Rear Panel 22 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 11: ...uity Diode test MAX MIN REL dBm Hold MX B 1 X REF dB Compare Manual or Auto ranging AC true RMS Data Logging to USB Data logging to PC using an Excel Add In Interface Voltage Resistance Diode Capacitance Temperature input Current input USB device port as standard for remote control USB host for data logging Optional GPIB factory install Calibration port for service operators only Excel Add In for ...

Page 12: ...0 GPIB Factory installed GDM 8342 only GTL 246 USB Cable GTL 205 Temperature Probe Adapter with Thermal Coupling K type Download Name Description gdmvcp inf In GDM 834X USB DRIVER ZIP USB driver GDM 834x Excel Addins Data logging Excel Add In logs measurements to a PC by remote control via the USB interface only This Excel Add In can t be used via the GPIB interface www GlobalTestSupply com nd Qua...

Page 13: ...e using the instrument Opening the box Contents single unit Main unit Test leads red x1 black x1 USB cable x1 Power cord x1 region dependent User manual CD Safety instruction sheet www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 14: ...unts Dual Measurement Multimeter GDM 8342 POWER Enter RANGE RANGE SHIFT EXIT MENU TRIG HOLD MX MN REL 2ND Hz P W ACV DCV W Power Switch POWER Turns On or Off the main power For the power up sequence see page 25 USB Host Port The Host port is a type A USB port for logging data See the USB Store chapter for more details page 83 Note GDM 8342 only Main Display Shows measurement results and parameters...

Page 15: ...older CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX Low current measurement terminal Accepts DC AC Current input For details see page 39 DC 500μA 0 5A AC 500μA 0 5A As a fuse protects the instrument from over current Rating T0 5A 250V This terminal accepts DC AC current input For the fuse replacement procedure see page 146 DC AC 12A Terminal CAT 600V COM 250V W ...

Page 16: ...on The secondary function is accessed in conjunction with the SHIFT key Upper Measurement keys DCV DCV DCI Measures DC Voltage page 33 DCI SHIFT DCV SHIFT EXIT DCV DCI Measures DC Current page 39 ACV ACV ACI Measures AC Voltage page 33 ACI SHIFT ACV SHIFT EXIT ACV ACI Measures AC Current page 39 DCV ACV DCV DCI ACV ACI Measures DC AC voltage page 33 DCI ACI SHIFT EXIT DCV DCI ACV ACI Measures DC A...

Page 17: ...m Measures dBm See page 63 Hz P Hz P TEMP Measures the frequency or period or a signal depending on the selected mode See page 51 TEMP SHIFT Hz P SHIFT EXIT Hz P TEMP Measures temperature See page 53 2ND 2ND 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 remote control ...

Page 18: ...h functions include MX B REF and 1 X See page 72 for details HOLD HOLD COMP Activates the Hold function page 69 COMP SHIFT HOLD SHIFT EXIT HOLD COMP Activates the compare measurement function See page 70 TRIG TRIG INT EXT Triggers sample acquisition manually when the trigger is set to external triggering See page 32 Note Not supported for capacitance measurement INT EXT SHIFT TRIG SHIFT EXIT TRIG ...

Page 19: ...ction is only available for the GDM 8342 See page 83 SHIFT EXIT SHIFT EXIT When used as a SHIFT key it is used to access the secondary functions associated with the measurement keys When used as an EXIT key it will exit out of menu systems AUTO ENTER Auto Enter When used as an AUTO key it will set the range of the selected function to autorange When used as an ENTER key it will confirm the entered...

Page 20: ...s Primary measurement function icons Secondary measurement function icons REAR GPIB USB LAN RS232 FILT RCL STO COMP 2ND dBm EXT SHIFT ERR LIMIT AUTOMATH 4W 2W DC AC A V m m Hz W k M W S F C m dB A V m m Hz W k M W S F C RMT MAX MIN REL HOLD S M F AUTO 4W 2W DC AC USBSTO nμF MEM RATIO UNCAL nμF 50000 Counts Dual Measurement Multimeter GDM 8342 Primary Measurement Function Icons Displays the primary...

Page 21: ...function icons Displays the secondary measurement function Function Status Icons Display status icons for operations functions that are not linked to the primary or secondary functions Primary Display Displays the results of the primary measurement www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 22: ...ISCONNECT POWER CORD AND REMOVE INPUTS BEFORE OPENING TO AVOID SHOCK WARNING USE ONLY GPIB Optional GPIB port GDM 8342 only 100 220 120 240 GPIB Port GPIB The GPIB port can be used for remote control This is a factory installed option for the GDM 8342 only Power Cord Socket 100 220 120 240 Accepts the power cord AC 100 120 220 240V 10 50 60Hz For power on sequence see page 25 www GlobalTestSupply ...

Page 23: ...AC 0 063AT For fuse replacement details see page 145 Calibration Port CALIBRATION USE ONLY Reserved for calibration purposes For service technicians only USB Device Type B USB port This port is used for remote control www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 24: ...nd 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 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 25: ... to the AC voltage input Note Make sure the ground connector on the power cord is connected to a safety ground This will influence the measurement accuracy 3 Push to turn on the main power switch on the front panel POWER 4 The display turns on and shows the last function that was used before the power was reset www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 26: ...by simply pressing the desired function key For example To activate the DCV function press the DCV key DCV DCI To activate a secondary function first press the SHIFT key followed by the function key for the secondary function For example To activate DCI measurement first press the SHIFT key SHIFT will be highlighted on the display Next press the DCV function key This will activate the DCI mode SHI...

Page 27: ... to each of the menu items on the current menu level Pressing the Down key will go down to the next level of the menu tree Conversely pressing the Up key will allow you to go back to the previous menu level Pressing Down or Enter on the last item in a menu tree will allow you to edit the settings or parameters for that particular item or setting Pressing the Exit key will allow you to exit from th...

Page 28: ...er as well Auto Enter RANGE 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 Pressing the Up or Down keys will allow you to edit the selected character www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 29: ...he Current Range 41 Resistance Measurement 43 Select the Resistance Range 44 Diode Test 45 Capacitance Measurement 46 Select the Capacitance Range 47 Continuity Test 48 Set Continuity Threshold 49 Continuity Beeper Settings 50 Frequency Period Measurement 51 Frequency Period Voltage Range Settings 52 Temperature Measurement 53 Set the Temperature Units 54 Select Thermocouple Type 55 www GlobalTest...

Page 30: ... 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 66 Relative Measurement 67 Hold Measurement 69 Compare Measurement 70 Math Measurement 72 Math Measurement Overview 72 Measure MX B 72 Measure 1 X 73 Measure Percentage 74 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 31: ...he refresh rate For further details please see the specifications Refresh rate Reading S Function S M F Continuity Diode 10 20 40 DCV DCI R 5 10 40 ACV ACI 5 10 40 Frequency Period 1 10 76 Capacitance 2 2 2 Steps 1 Press the left or right arrow keys to change the refresh rate 2 The refresh rate will be shown at the top of the display F M S Note The refresh rate cannot be set for capacitance measur...

Page 32: ...e refresh rate See the previous page for refresh rate setting details The TRIG key is used to manually trigger acquisition when the trigger mode is set to EXT Manual Trigger 1 Press SHIFT TRIG to toggle the trigger mode to EXT 2 Press the TRIG key to manually trigger each measurement when in EXT trigger mode Note Manual triggering is not supported for capacitance measurements www GlobalTestSupply ...

Page 33: ...V key to measure DC or AC voltage For AC DC voltage press the ACV and DCV keys at the same time 2 The mode will switch to AC DC or AC DC mode immediately as shown below AC DC indicator Voltage units Measurement range V S DC AC Connection Connect the test lead between the V and the COM terminal The display updates the reading www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSu...

Page 34: ...GDM 834X Series User Manual 34 CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 35: ...00mV 10μV 510 00mV 5V 0 1mV 5 1000V 50V 1mV 51 000V 500V 10mV 510 00V 750V AC 100mV 765 0V 1000V DC 100mV 1020 0V Note For further details please see the specifications on page 149 Note DC voltages with AC components cannot be accurately measured if the DC AC component exceeds the ADC dynamic range for the selected DC range Any voltage exceeding the ADC dynamic range will be clipped at the upper l...

Page 36: ...he 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 Maximum DCV Dynamic Range Selected DCV Range ADC Dynamic Range DC 500mV max 100mV DC 5V max 1V DC 50V m...

Page 37: ... 2 828 1 000 0 000 Rectified Sine full wave PK PK 1 414 0 435 0 900 Rectified Sine half wave PK PK 2 000 0 771 0 636 Square PK PK 2 000 1 000 0 000 Rectified Square PK PK 1 414 0 707 0 707 Rectangular Pulse PK PK X Y 2 000 2K K 2 D D D X Y 2D D X Y Triangle Sawtooth PK PK 3 464 1 000 0 000 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 38: ...lt 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 Crest Factor Table Waveform Shape Crest factor Square wave 1 0 Sine wave 1 414 Triangle sawtooth 1 732 Mixed frequencies 1 414 2 0 SCR output 100 10 1 414 3 0 White noise 3 0 4 0 AC Coupled pulse train 3 0 Spike 9 0 www GlobalTestSup...

Page 39: ...C DC current press SHIFT followed by both the DCV and ACV key at the same time 2 The mode will switch to AC DC or AC DC mode immediately as shown below A S AC AUTO AC DC indicator Current units Measurement range DC Connection Connect the test lead between the 10A terminal and the COM terminal or DC AC 0 5A terminal and the COM terminal depending on the input current For current 0 5A use the 0 5A t...

Page 40: ...834X Series User Manual 40 CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX Max 12A Max 0 5A www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 41: ...e 500µA 10nA 510 00μA 5mA 100nA 5 1000mA 50mA 1μA 51 000mA 500mA 10μA 510 00mA 5A 100μA 5 1000A 10A 1mA 12 000A Note For further details please see the specifications on page 149 Note DC currents with AC components cannot be accurately measured if the DC AC component exceed the ADC dynamic range for the selected DC range Any current exceeding the ADC dynamic range will be clipped at the upper lowe...

Page 42: ...g conditions are true When DCI 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 Maximum DCI Dynamic Range Selected DCV Range ADC Dynamic Range DC 500μA max 0 1mA DC 5mA max 1mA DC 50mA max 10mA ...

Page 43: ...esistance mode immediately as shown below Display W S 2W k AUTO Resistance indicator Resistance units Measurement range Connection The GDM 8342 8341 uses 2 wire resistance measurement Connect the test leads between the VΩ terminal and the COM terminal CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX www GlobalTestSupply com nd Quality Products Online at sales Globa...

Page 44: ...o select the range The AUTO indicator turns Off automatically If the appropriate range is unknown select the highest range Selectable Resistance Ranges Range Resolution Full scale 500Ω 10mΩ 510 00Ω 5kΩ 100mΩ 5 1000kΩ 50kΩ 1Ω 51 000kΩ 500kΩ 10Ω 510 00kΩ 5MΩ 100Ω 5 1000MΩ 50MΩ 1kΩ 51 000MΩ Note For further details please see the specifications on page 152 www GlobalTestSupply com nd Quality Products...

Page 45: ...the key twice will activate the capacitance measurement instead 2 The mode will switch to Diode mode immediately as shown below Display V S Diode state Diode function indicator Connection Connect the test lead between the VΩ terminal and COM terminal Anode V Cathode COM The display updates the reading CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX www GlobalTestS...

Page 46: ...diode measurement instead 2 The mode will switch to capacitance mode immediately as shown below Display Capacitance indicator Capacitance units Measurement range S n F Connection Connect the test lead between the VΩ terminal and COM terminal Positive V Negative COM The display updates the reading CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX www GlobalTestSupply...

Page 47: ... Off automatically If the appropriate range is unknown select the highest range Selectable Capacitance Ranges Range Resolution Full scale 5nF 1pF 5 100nF 50nF 10pF 51 00nF 500nF 100pF 510 0nF 5μF 1nF 5 100μF 50μF 10nF 51 00μF Note For further details please see the specifications on page 152 Note The refresh rate settings and the EXT trigger cannot be used in the capacitance mode www GlobalTestSup...

Page 48: ...continuity testing 2 The mode will switch to continuity testing immediately as shown below Display W S Continuity state Continuity function indicator Connection Connect the test lead between the VΩ terminal and COM terminal The display updates the reading CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX www GlobalTestSupply com nd Quality Products Online at sales G...

Page 49: ...d 10Ω Resolution 1Ω Procedure 1 Press MENU 2 Go to the MEAS menu on level 1 3 Go to the CONT menu on level 2 4 Set the continuity threshold level 5 Press the Enter key to confirm the continuity settings 6 Press EXIT to exit the CONT setting menu Display W Continuity setting Continuity function indicator www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 50: ...nes Range PASS Beeps when the continuity passes FAIL Beeps when the continuity fails OFF Beeper is turned off Procedure 1 Press MENU 2 Go to the SYSTEM menu on level 1 3 Go to the BEEP menu on level 2 4 Set the BEEP setting to PASS FAIL or OFF 5 Press the AUTO ENTER key to confirm the beeper settings 6 Press EXIT to exit the BEEP setting menu Display Beep setting Beep menu indicator www GlobalTest...

Page 51: ...secondary display To measure the period press the Hz P key twice PERIOD will be displayed on the secondary display Display Hz S AUTO Measurement Frequency units Measurement mode k Connection Connect the test lead between the VΩ terminal and the COM terminal The display updates the reading CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX www GlobalTestSupply com nd ...

Page 52: ...2 Set the range with the Up and Down keys The AUTO indicator will turn off when a new range is selected 3 Press the 2ND key twice more to switch the secondary display back to the previous view Autorange 1 Press the Auto Enter key 2 AUTO will be displayed on the screen again Display Hz k AUTO Autorange indicator Voltage range setting Note The 2nd key is only used to toggle the view of the second di...

Page 53: ...measurement is only supported on the GDM 8342 Range Thermocouple 200 C 300 C Procedure To make temperature measurements press SHIFT Hz P TEMP The temperature mode appears showing the temperature on the primary display and the type of sensor on the secondary display Display C S Measurement Temp units Sensor type Connection Connect the sensor lead between the VΩ terminal and the COM terminal The dis...

Page 54: ...its C F Procedure 1 Press the MENU key 2 Go to TEMP on level 1 3 Go to UNIT on level 2 4 Select either C Celsius or F Farenheit 5 Press the Enter key to confirm 6 Press the EXIT key to exit from the temperature menu Display Temperature unit setting Unit menu indicator www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 55: ...pe and range Type Measurement Range Resolution J 200 to 300 C 0 1 C K 200 to 300 C 0 1 C T 200 to 300 C 0 1 C Procedure 1 Press the MENU key 2 Go to TEMP on level 1 3 Go to SENSOR on level 2 4 Select the thermocouple type J K T 5 Press the Enter key to confirm 6 Press the EXIT key to exit from the temperature menu Display Thermocouple type setting Sensor menu indicator www GlobalTestSupply com nd ...

Page 56: ...The value of the reference junction temperature should be determined by the user Range SIM 0 50 C default 23 00 C Resolution 0 01 C Procedure 1 Press the MENU key 2 Go to TEMP on level 1 3 Go to SIM on level 2 4 Set the SIM simulated reference junction temperature 5 Press the Enter key to confirm 6 Press the EXIT key to exit from the temperature menu Display Reference junction temperature setting ...

Page 57: ...ACV and frequency period measurements If the primary and secondary displays use different measurement functions ranges or rates then separate measurements will be taken for each display For example ACV and DCV measurements Most of the basic measurement functions except for resistance continuity can be used in the dual measurement mode Supported dual measurement modes The following table lists all ...

Page 58: ...o DCV measurement 2 To set a measurement mode for the second display press the 2ND key and then select the second measurement mode For example press 2ND SHIFT ACV to select ACI measurement for the second display Display 2ND AUTO AC S AUTO Indicators for 1st measurement 2nd measurement and unit Indicators for 2nd measurement 1st measurement and unit V DC A m www GlobalTestSupply com nd Quality Prod...

Page 59: ...y is the active display Procedure 1 Toggle whether the primary or secondary display is the active display by pressing the 2ND key Primary display is the active display 2ND is not visible on the display Secondary display is the active display 2ND is visible on the display Note Do not hold the 2ND key This will turn the dual measurement mode off 2 Edit the range rate or measurement item for the acti...

Page 60: ...to connect the DMM to measure a number of common dual measurement items Voltage and Frequency Period measurement CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 61: ...ads has been reversed Please take into account the resistance of the test leads and internal resistance of the current connection as it is in series with the test circuit The above measuring configuration is used to measure the voltage present on the resistance under test and the current through the resistance under test when using the DCI DCV or ACI ACV dual measurement function www GlobalTestSup...

Page 62: ...ture Supported Advanced Measurement Functions The following table lists all the advanced measurement functions and which of the basic measurement functions that they support Advanced Meas Basic Measurement ACV DCV ACI DCI Ω Hz P TEMP DIODE CAP dB X X X X X X dBm X X X X X X Max Min X Relative X Hold X X Compare X Math X X Temperature measurement is not supported by the GDM 8341 www GlobalTestSuppl...

Page 63: ... dB dBm dBmref W Vreading2 Ref Where Vreading Input Voltage ACV or DCV Rref Reference resistance simulating an output load dBmref Reference dBm value Measuring dBm W Procedure 1 Select ACV or DCV measurement See page 33 2 To measure dBm press SHIFT The primary display will show the dBm measurement while the secondary display shows the reference resistance www GlobalTestSupply com nd Quality Produc...

Page 64: ...000 1200 8000 View the result in Watts When the reference resistance is less than 50Ω it is possible to calculate the power in watts If the reference resistance is equal to or greater than 50Ω then this step can be ignored Press SHIFT again to view the result in watts Display W dB S DC m Power measurement and unit Reference resistance W Exit dBm Measurement Press SHIFT again to exit the dBm measur...

Page 65: ...st display shows the dB reading the second display shows the voltage reading Display dB measurement Voltage reading dB S DC V View the dBm Reference Value To view the dBm reference value press the 2ND key The Up and Down arrow keys can also be used to change the voltage range or the reading Exit dB Measurement Press the SHIFT Ω key again to exit the dB measurement or simply activate another measur...

Page 66: ... Hz P TEMP Procedure For Max measurement press the MX MN key once For Min measurement press the MX MN key twice Display MAX S V MAX AUTO AC Basic meas function Max Min indicator Measurement range View Max Min Value Press the 2ND key to view the Max or Min value Display V MAX S MAX AUTO AC Max Min reading Max Min mode Deactivate Max Min Measurement Hold the MX MN key for two seconds to deactivate o...

Page 67: ...asurements The relative function can be used with the following basic measurement functions ACV DCV ACI DCI Ω Hz P TEMP Procedure Press the REL key The measurement reading at that instant becomes the reference value Display V REL S AC Relative value Range View Relative Reference Value Press the 2ND key to view the relative reference value at full scale Display V Relative reference value www Global...

Page 68: ...int Use the Up and Down arrow keys to edit the selected digit or to place the position of the decimal point V 3 Press the Enter key to confirm alternatively press Exit to cancel setting the relative reference value Display V Relative value setting REL setting mode Deactivate Relative Measurement Press the REL key again to deactivate the Relative measurement mode or simply activate another measurem...

Page 69: ... 1 Press the HOLD key 2 The measurement reading appears on the primary display and the hold threshold on the secondary display Display V HOLD S AC Measurement reading Hold threshold Set the Hold Threshold Use the Up and Down arrow keys to select a hold threshold level as a percentage Range 0 01 0 1 1 10 Deactivate Hold Measurement Press the HOLD key for 2 seconds to deactivate the hold measurement...

Page 70: ...eys to navigate to the digit to be edited or to select the decimal point Use the Up and Down arrow keys to edit the selected digit or to place the position of the decimal point V 3 Press the Enter key to save the high limit setting and automatically go on to the low limit setting 4 Enter the low limit setting in the same fashion as the high setting 5 Press the Enter key to confirm the low limit se...

Page 71: ...isplayed If the reading is above the high limit HIGH will be displayed Display V S AC COMP Measurement reading Compare result Deactivate Compare Measurement Press SHIFT HOLD to deactivate compare measurements or simply activate another measurement function www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 72: ...e factor M and adds subtracts offset B 1 X Inverse Divides 1 by the reading X Percentage Runs the following equation 100 Reference Reference ReadingX x Measure MX B Procedure 1 Press SHIFT MX MN to enter the MATH menu The MX B setting appears The M factor will be flashing indicating that the M factor is to be set 2 Use the Left and Right arrow keys to navigate to the digit to be edited or to selec...

Page 73: ...B meausurement reading MX B math indicator S DC V AUTO MATH m Deactivate Math Measurement Press SHIFT MX MN to deactivate the MATH function or simply activate another measurement function Measure 1 X Procedure 1 Press SHIFT MX MN to enter the MATH menu The MX B setting appears 2 Press the Down key twice to skip past MX B settings and go to the 1 X settings 1 X will be flashing in the secondary dis...

Page 74: ...easure Percentage Procedure 1 Press SHIFT MX MN to enter the MATH menu 2 The MX B setting appears Press the Up key to skip past MX B settings and go to the REF settings REF will be flashing in the secondary display 3 Use the Left and Right arrow keys to navigate to the digit to be edited or to select the decimal point Use the Up and Down arrow keys to edit the selected digit or to place the positi...

Page 75: ...ment Display S DC V AUTO MATH Calculated percentage meausurement function indicator Deactivate Math Measurement Press SHIFT MX MN to deactivate the MATH function or simply activate another measurement function www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 76: ...ersion Number 77 Brightness Settings 78 Input Resistance Settings 79 Frequency Period Input Jack Settings 80 Compatibility Settings 81 Changing the Compatibility Setting 81 Restore Factory Default Settings 82 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 77: ...e EXIT key twice to go back to the measurement screen View Version Number Procedure 1 Press the MENU key 2 Go to SYSTEM on level 1 3 Go to VER on level 2 4 The firmware version number will be displayed in the secondary display 5 Press Exit to exit from the version menu Display Note Firmware updates can only be performed by a GW Instek service technician F www GlobalTestSupply com nd Quality Produc...

Page 78: ...rocedure 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 Press the Enter key to confirm 6 Press the EXIT key to exit from the brightness settings Display Brightness setting www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 79: ...oltage Range Input resistance 10MΩ 10GΩ Default 10MΩ Procedure 1 Press the MENU key 2 Go to MEAS on level 1 3 Go to INPUT R on level 2 4 Set the input resistance to 10MΩ or 10GΩ 5 Press the Enter key to confirm 6 Press the EXIT key to exit from the input resistance menu Display Input resistance setting www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 80: ...ange Injack VOLT 500mA 10A Default VOLT Procedure 1 Press the MENU key 2 Go to MEAS on level 1 3 Go to INJACK on level 2 4 Set the INJACK setting to either VOLT 500mA or 10A 5 Press the Enter key to confirm 6 Press the EXIT key to exit from the INJACK menu Display INJACK setting www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 81: ... can allow programs that were originally written for the GDM 8246 to run on the GDM 8342 8341 with little modification Range LANG NORM COMP Procedure 1 Press the MENU key 2 Go to SYSTEM on level 1 3 Go to LANG on level 2 4 Set the LANG setting to either NORM normal mode or COMP compatibility mode 5 Press the Enter key to confirm 6 Press the EXIT key to exit from the LANG menu Display LANG setting ...

Page 82: ...ttings Range Factory DEF YES NO Procedure 1 Press the MENU key 2 Go to SYSTEM on level 1 3 Go to FACTORY on level 2 4 Set the FACTORY DEF setting to YES or NO Choosing YES will restore the factory default settings 5 Press the Enter key to confirm and to restore the factory default settings immediately Display Factory default setting www GlobalTestSupply com nd Quality Products Online at sales Glob...

Page 83: ...d USB Sticks 84 CSV Format 84 Filename Format 85 Operator Mode 86 Long Record Mode 88 View the Store Function Status 89 Set the Starting File Name Available only in Advance Mode 91 Save Count Available only in Advance Mode 91 Save to an Existing File Available only in Advance Mode 92 Time Mode Available only in Advance Mode 93 Timer 93 Date 95 Save to USB 96 Save to USB Simple Mode 96 Save to USB ...

Page 84: ...memory size 32GB Max record count in a recording 5 000 000 records Note Flash disks which need to use card adaptors are not recommended to be used in this application CSV Format Overview The GDM 8342 saves readings as a CSV file comma separated values that can be easily read using spreadsheet programs such as Microsoft Excel Each CSV file saves the following information Parameters Time dd The elap...

Page 85: ...00 Example Time dd Time hh mm ss 1st Value 1st Unit 2nd Value 2nd Unit Count Note 0 0 00 05 0 00E 00 V DC START 00001 0 0 00 06 0 00E 00 V DC 2 00002 0 0 00 06 0 00E 00 V DC END 00003 Filename Format Overview When files are saved to USB they are saved as a number starting from GW000 GW000 XX CSV and are automatically incremented for each new CSV file For example the first file will be named GW000 ...

Page 86: ...ONTINU continuous See page 91 and 92 for details Operator Mode Overview In the operator mode you can choose to operate in Simple mode or in Advance mode where various parameters can be designated by the user Simple Mode This mode is the easiest operation mode and is almost setting free It is the default operating mode After entering this mode the system will set the Existing File setting to New Fi...

Page 87: ...Setup Note that the settings that are available for the Advance mode are automatically available when you activate the USB Store function in the Advance mode See page 97 Procedure 1 Press the MENU key 2 Go to USBSTO on level 1 3 Go to MODE on level 2 4 Set MODE to SIMPLE or ADVANCE 5 Press the Enter key to confirm 6 Press the EXIT key to exit from the MODE menu Display Operator mode setting Operat...

Page 88: ...ecord mode The longest recordable time depends on the refresh rate that is chosen the longest recordable time in seconds equals 5 000 000 refresh rate Long In the long record mode a fixed record speed of one record per second will be logged into the log file the longest recordable time is 5 000 000 seconds Procedure 1 Press the MENU key 2 Go to USBSTO on level 1 3 Go to RECORD on level 2 4 Set REC...

Page 89: ...ime from when the USB store function was started Format HHH MM SS COUNT Displays the number of readings that have been logged for the current operation STATUS Displays the USB Store function status These statuses include 1 START indicates that the function has been started 2 STOP indicates that the function has been stopped 3 F FULL indicates that the current log file is full 4 D FULL indicates th...

Page 90: ... the status of a save operation press SHIFT 2ND 3 The USB Status menu will appear on the display The elapsed time will be displayed when you enter this menu 4 Press the Left or Right arrow keys to switch between the ELTIME COUNT STATUS S FILE and E_FILE displays 5 Press SHIFT 2ND again to exit from the USB status menu Display Elapsed time Count or USB store status Status item 2ND F DC USBSTO www G...

Page 91: ... XX CSV Display File name number setting Name menu indicator Save Count Available only in Advance Mode Range Count CONTINU 00002 50000 Default 10 Overview The COUNT function sets how many readings to perform each time the USB STO function is used By default the COUNT setting is set to 10 When this function is used the DMM will automatically return to the ready status when the specified number of r...

Page 92: ...ting File Available only in Advance Mode Range FILE CONTINU NEWFILE Default NEWFILE Overview By default a new file is created each time the USB STO function is used The FILE menu gives you the option to continue saving to the previous file rather than creating a new file each time the USB STO function is used This setting will appear automatically after the USB Store function has been started in A...

Page 93: ...first turned on The RESTART setting restarts the time stamp time to 0 each time the USB STO function is used This setting will appear automatically after the USB Store function has been started in Advance mode see page 97 for details Display Tmode menu setting Tmode menu indicator Timer Range TIMER 00 00 00 23 59 59 hours minutes seconds Default Elapsed time from when the unit was switched on www ...

Page 94: ...he day count cannot be set in the timer settings Note The GDM 834X uses volatile RAM and does not have a CMOS backup battery to save the TIMER settings when the power is turned off When the power is reset the TIMER setting will be reset to 00 00 00 Procedure 1 Press the MENU key 2 Go to USBSTO on level 1 3 Go to TIMER on level 2 4 Set TIMER time between 00 00 00 and 23 59 59 5 Press the Enter key ...

Page 95: ...each time the power is turned on The GDM 8342 will not update the date setting automatically this must be done manually by the user Procedure 1 Press the MENU key 2 Go to USBSTO on level 1 3 Go to DATE on level 2 4 Set the DATE The format for the date is Year Month Day 5 Press the Enter key to confirm 6 Press the EXIT key to exit from the DATE menu Display Date setting Date menu indicator www Glob...

Page 96: ...ommands after it starts to save records to USB Save to USB Simple Mode Overview The procedure below describes the save operation when the Mode is set to Simple Procedure 1 Insert a USB stick into the USB Host port on the front panel 2 If the USB stick is recognized by the DMM the USB STO icon will be lit This indicates that the DMM is ready to save files to the USB stick 3 Press SHIFT MENU The USB...

Page 97: ...ement USB STO icon USBSTO Save to USB Advance Mode Overview The procedure below describes the save operation when the Mode is set to Advance Procedure 1 Insert a USB stick into the USB Host port on the front panel 2 If the USB stick is recognized by the DMM the USB STO icon will be lit This indicates that the DMM is ready to save files to the USB stick 3 Press SHIFT MENU 4 Each Advance mode settin...

Page 98: ...eration has stopped the USB STO icon will stop flashing and will remain lit 7 The USB stick can now be removed or another save option can be performed WARNING Do not remove the USB stick while the DMM is saving to the USB drive Note The USB STO icon will flash at a faster rate 5 times second if there is no more space left on the USB stick or if the automatically incremented filename suffix XX has ...

Page 99: ...rong directory or data may be added to the wrong log file Suggestions When Deleting Directories or Log Files 1 Only delete the last directories do not delete directories before the last remaining directory For example the following directories are on the USB stick GW000 GW001 GW002 GW003 GW004 GW005 Recommended Delete the last directories GW000 GW001 GW002 GW003 GW004 GW005 Not recommended Deletin...

Page 100: ...r all the files from a directory GW000 00 CSV GW000 01 CSV GW000 02 CSV OR GW000 00 CSV GW000 01 CSV GW000 02 CSV Not recommended Deleting any file before the last file GW000 00 CSV GW000 01 CSV GW000 02 CSV www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 101: ...EEE488 2 based remote control For a command list refer to the Command Overview chapter on page 106 Configure Remote Control Interface 102 USB Interface 102 GPIB Interface 103 Return to Local Control 105 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 102: ...control the USB driver included on the User Manual CD must first be installed USB configuration PC connector Type A host DMM connector Rear panel Type B slave Speed 1 1 2 0 full speed high speed Selectable baud rate 9600 19200 38400 57600 115200 Parity None Hardware flow control Off Data Bits 8 Stop bit 1 Steps 1 Connect the USB cable to the rear panel type B USB port 2 Press MENU 3 Go to I O on l...

Page 103: ...rol GPIB configuration GPIB Address Range 0 30 Steps 1 Connect the GPIB cable to the rear panel GPIB port 2 Press MENU 3 Go to I O on level 1 4 Go to GPIB on level 2 5 Turn GPIB ON and press Enter to Confirm 6 The GPIB address settings will automatically appear after turning GPIB on Set the GPIB address 7 Press Enter to confirm the GPIB address setting 8 Press EXIT to exit from the System menu www...

Page 104: ...ints Maximum 15 devices together at least 2 3 of all devices turned on Cable length should be less then 20m with a maximum of 2m between each device Unique address assigned to each device No loop or parallel connections www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 105: ...en When this icon is not displayed it indicates that the unit is in local control mode Procedure 1 Press the LOCAL 2ND key when in remote mode 2 The unit will go back into local mode and the RMT icon will turn off Display Hz k AUTO Remote control indicator RMT www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 106: ... Partial compatibility Command Structure SCPI Standard Commands for Programmable Instruments commands follow a tree like structure organized into nodes Each level of the command tree is a node Each keyword in a SCPI command represents each node in the command tree Each keyword node of a SCPI command is separated by a colon For example the diagram below shows an SCPI sub structure and a command exa...

Page 107: ...ter data is returned Example CONFigure RANGe Command Forms Commands and queries have two different forms long and short The command syntax is written with the short form of the command in capitals and the remainder long form in lower case The commands can be written either in capitals or lower case just so long as the short or long forms are complete An incomplete command will not be recognized Be...

Page 108: ...For example for the query SENSe UNIT Both SENSe UNIT and UNIT are both valid forms Command Format 500 1 2 3 CONFigure VOLTage DC 1 Command header 2 Space 3 Parameter 1 Common Input Parameters Type Description Example Boolean boolean logic 0 1 NR1 integers 0 1 2 3 NR2 decimal numbers 0 1 3 14 8 5 NR3 floating point with exponent 4 5e 1 8 25e 1 NRf any of NR1 2 3 1 1 5 4 5e 1 www GlobalTestSupply co...

Page 109: ...r queries it will return the highest possible value allowed for the particular setting Automatic parameter range selection The GDM 8342 8341 automatically sets the command parameter to the next available value Example conf volt dc 1 This will set the measurement item to DC Voltage and the range to 5V There is no 1V range so the DMM selects the next available range 5V Message Terminator EOL Remote ...

Page 110: ...GDM 834X Series User Manual 110 Return Message CR LF Message Separator EOL or semicolon Command Separator www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 111: ... CONFigure TEMPerature TCOuple 118 CONFigure CAPacitance 118 CONFigure FUNCtion 118 CONFigure RANGe 119 CONFigure AUTO 119 CONFigure AUTO 119 Configure Commands Display 2 CONFigure2 VOLTage DC 119 CONFigure2 VOLTage AC 120 CONFigure2 CURRent DC 120 CONFigure2 CURRent AC 120 CONFigure2 RESistance 120 CONFigure2 FREQuency 121 CONFigure2 PERiod 121 CONFigure2 OFF 121 CONFigure2 FUNCtion 121 CONFigure...

Page 112: ... 126 MEASure2 RESistance 126 MEASure2 FREQuency 126 MEASure2 PERiod 126 Sense Commands SENSe TEMPerature TCOuple TYPE 127 SENSe TEMPerature TCOuple TYPE 127 SENSe TEMPerature RJUNction SIMulated 127 SENSe TEMPerature RJUNction SIMulated 127 SENSe DETector RATE 127 SENSe DETector RATE 127 SENSe FREQuency INPutjack 128 SENSe FREQuency INPutjack 128 SENSe PERiod INPutjack 128 SENSe PERiod INPutjack 1...

Page 113: ...LCulate DB REFerence 132 CALCulate DB REFerence 132 CALCulate DBM REFerence 132 CALCulate DBM REFerence 132 CALCulate MATH MMFactor 132 CALCulate MATH MMFactor 132 CALCulate MATH MBFactor 133 CALCulate MATH MBFactor 133 CALCulate MATH PERCent 133 CALCulate MATH PERCent 133 CALCulate NULL OFFSet 133 CALCulate NULL OFFSet 133 Trigger Commands READ 134 VAL1 134 VAL2 134 TRIGger SOURce 134 TRIGger SOU...

Page 114: ...YSTem SCPi MODE 137 INPut IMPedance AUTO 137 INPut IMPedance AUTO 137 Status Commands STATus QUEStionable ENABle 138 STATus QUEStionable ENABle 138 STATus QUEStionable EVENt 138 STATus PRESet 138 Interface Commands SYSTem LOCal 138 SYSTem REMote 138 SYSTem RWLock 138 Common Commands CLS 139 ESE 139 ESE 139 ESR 139 IDN 139 OPC 139 OPC 140 PSC 140 PSC 140 RST 140 SRE 140 SRE 140 www GlobalTestSupply...

Page 115: ...COMMAND OVERVIEW 115 STB 140 TRG 140 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 116: ...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 Parameter None Range NRf MIN MAX DEF Example CONF VOLT DCAC Sets the DC AC voltage range to auto range CONFigure CURRent DC Sets measurement to DC Current on the first display and specifies the range Parameter None Range NR...

Page 117: ...N MAX DEF Example CONF CURR DCAC 50e 2 Sets the measurement mode to DC AC Current with a 500mA range CONFigure RESistance Sets measurement to 2W Resistance on the first display and specifies range Parameter None Range NRf MIN MAX DEF Example CONF RES 50e3 Sets the range to 50kΩ CONFigure FREQuency Sets measurement to Frequency on the first display and specifies the range Parameter None Range NRf M...

Page 118: ...e TCOuple Sets measurement to Temperature thermocouple T CUP on the first display Parameter None Type J K T Example CONF TEMP TCO J Sets the measurement mode to TCO with a type J sensor CONFigure CAPacitance Sets measurement to Capacitance on the first display Parameter None Range NRf MIN MAX DEF Example CONF CAP 5E 5 Sets the measurement mode to Capacitance with a 50μF Range CONFigure FUNCtion Re...

Page 119: ...9 5nF 5E 8 50nF 5E 7 500nF 5E 6 5μF 5E 5 50μF CONFigure AUTO Sets Auto Range on or off on the first display Parameter ON OFF Example CONF AUTO ON CONFigure AUTO Returns the Auto Range status of the function on the 1st 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 specifie...

Page 120: ... 50e 3 Sets the DC current range to 50mA on the second display CONFigure2 CURRent AC Sets measurement to AC Current on the second display and specifies the range Parameter None Range NRf MIN MAX DEF Example CONF2 CURR AC 50e 2 Sets the measurement mode to ACI with a 500mA range on the second display CONFigure2 RESistance Sets measurement to 2W Resistance on the second display and specifies the ran...

Page 121: ...ts measurement to Period on the second display and specifies the range Parameter None Range NRf MIN MAX DEF Example CONF2 PER Sets the DMM to period measurement using the previous range CONFigure2 OFF Turns the second display function off Parameter None CONFigure2 FUNCtion Returns the current function on the second display Return parameter VOLT VOLT AC CURR CURR AC RES FREQ PER NON www GlobalTestS...

Page 122: ... 5 500mA 5 5A 10 10A DCI 0 0005 500μA 0 005 5mA 0 05 50mA 0 5 500mA 5 5A 10 10A RES 50E 1 500Ω 50E 2 5kΩ 50E 3 50kΩ 50E 4 500kΩ 50E 5 5MΩ 50E 6 50MΩ CONFigure2 AUTO Sets Auto Range on or off on the 2nd display Parameter ON OFF Example CONF2 AUTO ON CONFigure2 AUTO Returns the Auto Range status of the function on the 2nd display Return Parameter 0 1 1 Auto range 0 Manual range www GlobalTestSupply ...

Page 123: ...ample MEAS VOLT AC 0 511E 3 Returns the AC voltage measurement as 0 511 mV 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 326E 3 Returns the DC AC voltage measurement as 0 326 mV MEASure CURRent DC Returns the DC current measurement on the first display Parameter None Range NRf MIN MAX DEF Example MEAS C...

Page 124: ...as 0 0123 mA MEASure RESistance Returns the 2W resistance measurement on the first display Parameter None Range NRf MIN MAX DEF Example MEAS RES 1 1937E 3 Returns the 2W measurement as 1 1937kΩ MEASure FREQuency Returns the frequency measurement on the first display Parameter None Range NRf MIN MAX DEF Example MEAS FREQ 2 3708E 2 Returns the frequency 237 08Hz MEASure PERiod Returns the period mea...

Page 125: ... display Parameter NONE J K T Example MEAS TEMP TCO J 2 50E 1 Returns the temperature MEASure2 VOLTage DC Returns the DC voltage measurement on the second display Parameter None Range NRf MIN MAX DEF Example MEAS2 VOLT DC 0 488E 4 Returns the DC voltage measurement as 0 0488 mV MEASure2 VOLTage AC Returns the AC voltage measurement on the second display Parameter None Range NRf MIN MAX DEF Example...

Page 126: ...rement MEASure2 RESistance Returns the 2W resistance measurement on the second display Parameter None Range NRf MIN MAX DEF Example MEAS2 RES 1 1912E 3 Returns the 2W measurement MEASure2 FREQuency Returns the frequency measurement on the second display Parameter None Range NRf MIN MAX DEF Example MEAS2 FREQ 2 3712E 2 Returns the frequency 237 12Hz MEASure2 PERiod Returns the period measurement on...

Page 127: ... Parameter NRf 0 00 50 00 Example SENS TEMP RJUN SIM 25 00 Sets the thermocouple junction temperature to 25 C 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 ...

Page 128: ...k Assigns an input terminal for the period function Parameter 0 1 2 0 volt 1 500mA 2 10A Example SENS PER INP 0 Sets the input jack to the Volt input terminal SENSe PERiod INPutjack Returns the assigned input terminal used for the period function Return Parameter VOLT 500mA 10A SENSe CONTinuity THReshold Sets the continuity threshold in ohms Parameter NRf 0 1000 Example SENS CONT THR 500 Sets the ...

Page 129: ...CURR DCAC RES FREQ PER TEMP TCO DIOD CONT CAP display2 VOLT DC VOLT AC CURR DC CURR AC RES FREQ PER NON Example SENS FUNC1 VOLT DC Sets the 1st display to the DCV function SENSe FUNCtion 1 2 Returns the function displayed on the first or second display Return parameter display 1 VOLT VOLT AC VOLT DCAC CURR CURR AC CURR DCAC RES FREQ PER TEMP TCO DIOD CONT CAP display 2 VOLT VOLT AC CURR CURR AC RE...

Page 130: ...Advanced function CALCulate STATe Turns the Advanced function on off Parameter ON OFF Example CALC STAT OFF Turns the Advanced function off CALCulate STATe Returns the status of the Advanced function Return Parameter 0 1 1 ON 0 OFF CALCulate MINimum Returns the minimum value from the Max Min measurement CALCulate MAXimum Returns the maximum value from the Max Min measurement www GlobalTestSupply c...

Page 131: ...REL REF MAX Sets the reference value to the maximum allowed CALCulate REL REFerence Returns the reference value from the relative function CALCulate LIMit LOWer Sets the lower limit of the compare function Para meter NRf MIN MAX Example CALC LIM LOW 1 0 Sets the lower limit to 1 0 CALCulate LIMit LOWer Returns the lower limit of the compare function CALCulate LIMit UPPer Sets the upper limit of th...

Page 132: ...Ference 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 CALCulate MATH MMFactor Sets the scale factor M for math measurements Parameter NRf MIN MAX Example CALC MATH MMF MIN Sets the scale factor M to the mini...

Page 133: ...ts the reference value for the Percent function to the maximum CALCulate MATH PERCent Returns the reference value setting for the Percent function CALCulate NULL OFFSet Sets the reference value for the relative function This command is analogous to the CALCulate REL REFerence command Parameter NRf MIN MAX Example CALC NULL OFFS MAX Sets the reference value to the maximum allowed CALCulate NULL OFF...

Page 134: ...s from the 1st display VAL2 Returns the 2nd display reading Example SAMP COUN 100 VAL2 0 345E 4 V DC 0 391E 4 V DC etc for 100 counts Queries 100 counts of stored samples from the 2nd 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 www GlobalTestSupply com nd Quality Products...

Page 135: ...mples Parameter NR1 1 9999 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 Parameter NR1 1 9999 MIN MAX Example TRIG COUN 10 Sets the number of trigger counts to 10 TRIGger COUNt Returns the number of trigger counts Parameter None MIN MAX www GlobalTestSupply com nd Quali...

Page 136: ...n parameter Beep on Pass Beep on Fail No Beep SYSTem BEEPer ERRor Sets the beeper to sound on an SCPI error Parameter ON OFF Example SYST BEEP ERR ON Allows the beeper to sound when an SCPI error occurs SYSTem BEEPer ERRor Returns the beeper error mode Return parameter 0 1 0 OFF 1 ON SYSTem ERRor Returns the current system error if any SYSTem VERSion Returns system version Return Parameter X XX ww...

Page 137: ...er NORM COMP NORM Normal COMP Compatible to GDM8246 Example SYST SCP MODE NORM Sets the SCPI mode to normal SYSTem SCPi MODE Returns the SCPI mode Return parameter NORMAL COMPATIBLE INPut IMPedance AUTO Sets the input impedance for DCV mode Parameter ON 10G OFF 10M Example INP IMP AUTO ON Turns the Automatic input impedance on INPut IMPedance AUTO Returns the input impedance mode Return parameter ...

Page 138: ...vent register 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 SYSTem RWLock Enables remote control and disables local control front panel control This command is analogous to the SYSTem...

Page 139: ... 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 Example ESR 198 Returns 198 SESR 11000110 IDN Returns the manufacturer model No serial number and system version number Example IDN GWInstek GDM8342 00000000 1 0 OPC 1 is placed in the output queue when all the pending operations are completed www Global...

Page 140: ...r On status Parameter Boolean 0 1 0 don t clear 1 clear RST Recalls default panel setup SRE Returns the SRER Service Request Enable Register contents 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 81 Returns the contents of the SBR as 01010001 TRG Manually triggers the DMM www GlobalTestSupply com nd ...

Page 141: ...e following command sets please refer to the status system diagram on page 148 STAT QUES EVEN STAT QUES ENAB STAT QUES ENAB ESR ESE ESE STB SRE SRE www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 142: ...esult in erroneous measurements 2 Ensure that the appropriate input resistance has been set in the System menu For 500mv and 5V ranges the input resistance can be set to either 10MΩ or 10GΩ 3 When measuring AC voltage or current the RMS of the voltage peak is measured not the voltage peak See page 37 for details 4 The measurement rate settings can have an effect on the accuracy of the measurement ...

Page 143: ...EL 2 LEVEL 2 LEVEL 2 BEEP CONT USB USBSTO LEVEL 2 RECORD TIMER DATE SIMPLE NORMAL LONG 00 00 00 13 03 01 MODE 10A FAIL LIGHT 2 LIGHT 3 LIGHT 4 LIGHT 5 SIM TYPE J TYPE K TYPE T 23 00 C F LEVEL 2 SENSOR UNIT GDM 8342 only GDM 8342 only GDM 8342 only GDM 8342 only ADVANCE FACTORY NO YES Pressing Shift Menu FILE NAME COUNT TMODE TIMER DATE www GlobalTestSupply com nd Quality Products Online at sales G...

Page 144: ...ass VER N A LIGHT 3 S N N A LANG NORM 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 BAUD 115200 GPIB OFF USBSTO Menu MODE SIMPLE RECORD NORMAL TIMER 00 00 00 DATE 13 03 01 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 145: ... rating Steps 1 Turn the DMM off and take out the power cord 2 Remove the fuse socket using a flathead screwdriver 3 Remove the fuse in the holder and replace with the correct type and rating 4 Ensure the correct line voltage is lined up with the arrow on the fuse holder Insert the fuse socket www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 146: ... of the correct type and 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 CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX 1 2 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 147: ...rating CAT 600V COM 250V W V T0 5A FUSE INPUT MAX 500Vpk 12A MAX 750V 1000V MAX 0 5A MAX 3 4 Push the fuse holder back into the panel and turn clockwise when the fuse holder is level with the front panel www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 148: ... 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 ESE ESE STB SRE SRE www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 149: ... specifications are applicable to the main 1st display only General Specifications Specification Conditions Temperature 23 C 5 C Humidity 80 RH 75 RH for resistance measurement readings greater than 10MΩ Operating Environment 0 50 C Temperature Range 0 35 C Relative Humidity 80 RH 35 C Relative Humidity 70 RH Indoor use only Altitude 2000 meters Pollution degree 2 Storage Conditions 10 70 C Temper...

Page 150: ...rrent Range Resolution Full Scale Accuracy 1 year 23 C 5 C Shunt Resistance Burden Voltage 500μA 10nA 510 00 0 05 5 100Ω 0 06V max 5mA 100nA 5 1000 0 05 4 100Ω 0 6V max 50mA 1μA 51 000 0 05 4 1Ω 0 14V max 500mA 10μA 510 00 0 10 4 1Ω 1 4V max 5 A 100μA 5 1000 0 25 5 10mΩ 0 5V max 10 A 1mA 12 000 0 25 5 10mΩ 0 8V max 500μA 500mA range has a 3 6V voltage limit protection and 0 5A fuse protection And ...

Page 151: ...with up to 400Vdc of bias on any range AC Current ACI DCI 3 AC Coupled Range Resolu tion Full Scale Accuracy 1 year 23 C 5 C 1 Burden Voltage 30 50Hz 50 2kHz 2K 5kHz 5K 20kHz 500μA 10nA 510 00 1 50 50 0 50 40 1 50 50 3 00 75 0 06V max 5mA 100nA 5 1000 1 50 40 0 50 20 1 50 40 3 00 60 0 6V max 50mA 1μA 51 000 1 50 40 0 50 20 1 50 40 3 00 60 0 14V max 500mA 10μA 510 00 1 50 40 0 50 20 1 50 40 3 00 60...

Page 152: ... test leads to eliminate the noise interference that may be induced by standard test leads Open circuit voltage approximates 6V max on 500 5MΩ range approximates 5 5V max on 50MΩ range Input protection of 500V peak on all ranges Diode Range Resolution Full Scale Test Current Accuracy 1 year 23 C 5 C 5V 100μV 5 1000 0 83mA 0 05 5 Input protection of 500V peak Open circuit voltage approximates 6V Co...

Page 153: ...of 500V peak on all ranges Frequency Measurement Range Accuracy 1 year 23 C 5 C 10Hz 500Hz 0 01 5 500Hz 500kHz 0 01 3 AC DC measurements do not allow frequency measurements Input protection of 1000V peak on all ranges Voltage Measurement Sensitivity Range Minimum Sensitivity RMS sine wave 10 100kHz 100K 500kHz 500mV 35mV 200mV 5V 0 25V 0 5V 50V 2 5V 5V 500V 25V uncal 750V 50V uncal Current Measure...

Page 154: ...ent Range Resolution Accuracy 1 year 23 C 5 C Thermocouple J 200 300 C 0 1 C 2 C K T Note The temperature specifications do not include sensor error Note This feature is not supported on the GDM 8341 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 155: ...E Enter POWER GDM 8342 50000 Counts Dual Measurement Multimeter DCI ACI dB dBm LOCAL REL MATH COMP INT EXT USB STO MAX 0 5A MAX 1000V 750V MAX 12A 500Vpk MAX INPUT FUSE T0 5A V W 250V COM CAT 600V Auto DC AC TEMP 107 265 231 302 www GlobalTestSupply com nd Quality Products Online at sales GlobalTestSupply co ...

Page 156: ...patibility and Low Voltage Directive the following standards were applied EMC EN 61326 1 EN 61326 2 1 Electrical equipment for measurement control and laboratory use EMC requirements 2006 Conducted Radiated Emission EN 55011 2009 A1 2010 Electrostatic Discharge EN 61000 4 2 2009 Current Harmonics EN 61000 3 2 2006 A1 2009 A2 2009 Radiated Immunity EN 61000 4 3 2006 A1 2008 A2 2010 Voltage Fluctuat...

Page 157: ...mpatibility settings 81 Continuity beeper 50 threshold 49 Continuity setting 48 Conventions 26 Current range 41 setting 39 Declaration of conformity 156 Diode setting 45 Display overview 20 Disposal instructions 8 Dual measurement modes 57 overview 57 EN61010 measurement category 6 pollution degree 8 Environment safety instruction 7 Factory default settings restore 82 Factory default settings 144 ...

Page 158: ...System menu tree 143 Temperature reference junction temperature 56 selection 53 setting 53 SIM 56 thermocouple type 55 units 54 Tilt stand 24 Triggering 32 UK power cord 9 USB Store advance 97 CSV format 84 Date 95 deleting files or directories 99 file option setting 92 filename 91 filename format 85 long record mode 88 operator mode 86 overview 83 save count 91 save overview 96 simple 96 status 8...

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