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Lumel HA-DMA512 User Manual

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HA-DMA512
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Summary of Contents for Lumel HA-DMA512

  • Page 1 Digital multimeter HA-DMA512 user’s manual...
  • Page 2 Digital Multimeter User‟s Guide Brief Introduction The DMM is 5 digits, fast and high accuracy, multi-function and auto measurement instrument for Voltage, Current, Resistance, Frequency. The simple front panel and convenient operation support the demand in measurement. All Functions: Measurement Functions: ●...
  • Page 3 Digital Multimeter User‟s Guide Standard Accessories and options Standard Accessories:  Power Cord  Testing Lead  CD disk Options:  IEEE-488 interface board...
  • Page 4 Digital Multimeter User‟s Guide Safety Information Review the following safe precautions to avoid injury and prevent damage to the product or any products connected to it. To avoid potential hazards, please make sure of the product only as specified. 1. Use power cord as specified. Use only power cord specified for this product and approved for the country of use.

  • Page 5: Table Of Contents

    Digital Multimeter User‟s Guide In this book Chapter 1 Quick Start 1.1 Front Panel at a Glance -----------------------------------------------------------------------7 1.2Rear Panel at a Glance ------------------------------------------------------------------------8 1.3 Display Annunciators -------------------------------------------------------------------------9 1.4 Front Panel Menu at a Glance -------------------------------------------------------------10 1.5 Front Panel Menu Reference ---------------------------------------------------------------11 1.6 Other Introductions --------------------------------------------------------------------------13 1.6.1If the Multimeter does not turn on --------------------------------------------------13 1.6.2 Replace the power-line fuse ---------------------------------------------------------13...
  • Page 6 Digital Multimeter User‟s Guide 3.1.1 Displayed message ------------------------------------------------------------------25 3.1.2 Turn off the display -----------------------------------------------------------------25 3.1.3 Shortcut keys on front panel ------------------------------------------------------ 26 3.2 Measuring configuration -------------------------------------------------------------------27 --------------------------------------------------------------27 3.2.1 To set resolution 3.2.2 To set AC Filter ---------------------------------------------------------------------27 3.2.3 To set DC input impedance --------------------------------------------------------28 3.2.4 To set continuity threshold ---------------------------------------------------------28 3.2.5 To set aperture time -----------------------------------------------------------------28 3.2.6 To set temperature senor probe ---------------------------------------------------29...
  • Page 7 Digital Multimeter User‟s Guide 3.5.4 Remote interface configuration -------------------------------------------------- 36 3.5.5 Calibration -------------------------------------------------------------------------- 37 Chapter 4 Remote Interface 4.1 SCPI language -------------------------------------------------------------------------------- 39 4.2 Command set ----------------------------------------------------------------------------------43 4.3 Simple programing ---------------------------------------------------------------------------50 4.3.1 MEASure? and CONFigure? command -------------------------------------------51 4.3.2 FUNCtion commands ----------------------------------------------------------------55 4.3.3 Math operation commands ----------------------------------------------------------57 4.3.4 Trigger ---------------------------------------------------------------------------------61 4.3.5 System commands --------------------------------------------------------------------61...

  • Page 8: Chapter 1 Quick Start

    Digital Multimeter User‟s Guide Chapter 1 Quick Start 1.1Front Panel at a Glance ① Measurement Function keys ② Auxiliary function keys ③ Math Operation keys ④ Config Enter keys ⑤ Menu Operation keys (Range)

  • Page 9: Rear Panel At A Glance

    Digital Multimeter User‟s Guide 1.2 Rear Panel at a Glance ① RS232 interface connector ② USB interface connector ③ Power socket ④ GPIB interface connector ⑤ Power-Line Voltage Settting Switch 1.3 Display Annunciators...

  • Page 10: Front Panel Menu At A Glance

    Digital Multimeter User‟s Guide ① Main display line ② Secondary display line ③ * (Turns on during a measurement) ④ Adrs (GPIB interface display) ⑤ Rmt (Remote interface operation) ⑥ Man (Manual ranging, autorange is disabled) ⑦ Trig (Waiting for a single trigger or external trigger) ⑧...
  • Page 11 Digital Multimeter User‟s Guide The menu of DMM is organized in a top-down tree struction with three levels, menu, commonds and parameters. 【Config】+【Enter】 enable current measurement function menu 【Config】 +“Function keys” enable current measurement function and math function 【Shift】+【Config】+【Enter】 enable other menus 【<】...

  • Page 12: Front Panel Menu Reference

    Digital Multimeter User‟s Guide 1:SENSOR 2:UNITS 3:MODE B:Math Menu 【Config】+【NULL】 : +0.000000m (NULL VALUE) 【Config】+【Limits】 : +1.000000∧ (HI LIMIT) 【Config】+【MX+B】 : +1.000000∧ (SET M) 【Config】+【MIN/MAX】 : +0.000000E+00 (MIN) 【Config】+【Shift】+【NULL】 : +1.000000∧ (dB REF) 【Config】+【Shift】+【Limits】 : 0600 OHM (dBm REF) 【Config】+【Shift】+【MX+B】 : +1.000000∧...
  • Page 13 Digital Multimeter User‟s Guide 4:CONTINUITY set continuouse buzzer threshold from 1 ohm to 1000 ohms. 5:SENSOR select temperature sensor type 6:UNITS select temperature unit 7:MODE select connection mode B:Math Menu 1:NULL VALLUE recall or set the null value memoried in register 2:dB REL recall and set the dB value memoried in register 3:LIMIT/HI...

  • Page 14: Other Introductions

    Digital Multimeter User‟s Guide E: Interface Menu 1:RS-232 select RS-232 baud rate 2:USB select USB operation 3:GPIB set GPIB address (0-31) F: Calibration Menu 1:SECURED calibration protection, input password to cancel it. 1:UNSECURED input password to enter into caliabration protection. 2:CALTBRATE run all the calibration of gain 1.6 Other Introductions...

  • Page 15: State Of Power-On And Reset

    Digital Multimeter User‟s Guide The other one is assembled in the multimeter to supply the current protection for 10A input terminal, which is 15A, 250Vac fuse. Once replace this fuse, the case of multimeter need to be opened. 1.6.4 State of power-on and reset Measuring Configuration Factory Setting Function...
  • Page 16 Digital Multimeter User‟s Guide Display mode Reading memory Clear Interface RS232 Baud rate 9600 GPIB address...

  • Page 17: Chapter 2 Measurement Functions

    Digital Multimeter User‟s Guide Chapter 2 Measurement Functions 2.1 To measure DC Voltage Ranges: 100mV, 1V, 10V, 100V, 1000V Maximum Resolution: 1uV Configurable parameters: Integration, Input Z Measurement Method: 1. Connect as picture shows. 2. Press 【DCV】key to measure DC voltage. 3.
  • Page 18 Digital Multimeter User‟s Guide Measurement Method: 1. Connect as picture shows. 2. Press 【Shift】 【DCV】 key to measure DC current. 3. Press【∧】or【∨】key to select range manually. Press【AUTO/MAN】key to select auto range. Auto range set to be 1A. If user would like to test current more than 1A, he have to press【∧】to set 10A range and make the 10A terminal connected with testing lead.

  • Page 19: To Measure Ac Voltage

    Digital Multimeter User‟s Guide 2.3 To measure AC Voltage Ranges: 100mV, 1V, 10V, 100V, 750V Maximum Resolution: 1µV AC technique: True RMS, AC coupled Configurable parameters: AC Filter Measurement Method: 1. Connect as picture shows. 2. Press 【ACV】key to measure AC voltage. 3.
  • Page 20 Digital Multimeter User‟s Guide Measurement Method: 1. Connect as picture shows. 2. Press 【Shift】 【ACV】 key to measure AC current. 3. Press【∧】or【∨】key to select range manually. Press【AUTO/MAN】key to select auto range. Auto range set to be 1A. If user would like to test current more than 1A, he have to press【∧】to set 10A range and make the 10A terminal connected with testing lead.

  • Page 21: To Measure 2 Wire Resistance

    Digital Multimeter User‟s Guide 2.5 To measure 2 wire resistance Ranges: 100Ω, 1kΩ, 10kΩ, 100kΩ, 1MΩ, 10MΩ, 100MΩ Maximum resolution: 1mΩ Cnfigurable parameter: Integration Measurement Method: 1. Connect as picture shows. 2. Press 【Ω2W】 key to measure 2 wire resistance. 3.

  • Page 22: To Measure Frequency (Or Period)

    Digital Multimeter User‟s Guide Cnfigurable parameter: Integration Measurement Method: 1. Connect as picture shows. 2. Press 【Shift】 【Ω2W】 key to measure 4 wire resistance. 3. Press【∧】or【∨】key to select range manually. Press【AUTO/MAN】key to select auto range. 4. If “OVRFLW” is shown, it indicates that the measuring resistance is over the range. Note: (1) DC voltage over 300V is never allowed to input terminal to avoide destroy to multimeter and danger to human.

  • Page 23: To Test Continuity

    Digital Multimeter User‟s Guide Measurement Method: 1. Connect as picture shows. 2. Press 【Freq】or【Shift】+【Freq】key to measure frequency or period. 3. Press【∧】or【∨】key to select range manually. Press【AUTO/MAN】key to select auto range. 4. If “VAC OVERLOAD” is shown, it indicates measuring voltage is over the range. Note: (1) DC voltage over 1000V is never allowed to input terminal to avoide destroy to multimeter and danger to human.

  • Page 24: To Measure Diode

    Digital Multimeter User‟s Guide 2. Press 【 】key to measure continuity. Note: (1) DC voltage over 1000V is never allowed to input terminal to avoide destroy to multimeter and danger to human. 2.9 To measure diode Test current source: 1mA Maximum resolution: 100uV（range is fixed at 10VDC）...

  • Page 25: To Measure Temperature

    Digital Multimeter User‟s Guide Measurement Method: 1. Connect as picture shows. 2. Press【Shift】 【Temp】key to measure diode. 3. Press【∧】or【∨】key to select range manually. Press【AUTO/MAN】key to select auto range. For Manual operation, capacitance less 1/10 of range, that will show LOWER. 4.
  • Page 26 Digital Multimeter User‟s Guide Measurement Method: 1. Connect as picture shows. 2. Press【Temp】key to measure temperature. Note: (1) DC voltage over 1000V is never allowed to input terminal to avoide destroy to multimeter and danger to human.

  • Page 27: Chapter 3 Features And Functions

    Digital Multimeter User‟s Guide Chapter 3 Features and Functions 3.1 Front panel display This DMM has two lines display, the indicator on which shows the non-default working state. 3.1.1 Displayed message When measuring, the main line shows current reading with unit (like ““-1.000,00 VDC”). The second line shows the range.

  • Page 28: Measuring Configuration

    Digital Multimeter User‟s Guide ● To change range manually, press 【∧】or 【∨】keys. Man annunciator is on when manual range is enabled, the second line indicates the selected range. ● Press 【AUTO/MAN】key to switch between autoranging and manual ranging, and the Man annunciator is on or off accordingly.

  • Page 29: To Set Dc Input Impedance

    Digital Multimeter User‟s Guide ● The AC Filter setting is stored in volatile memory. The ac filter is set to slow filter 20Hz at power-on and after remote control reset. 3.2.3 To set DC input impedance For all dc voltage range, the default input impedance is fixed as 10 MΩ to mimum the noise. But when test low voltage, you should reduce the error by load effect.

  • Page 30: To Set Temperature Senor Probe

    Digital Multimeter User‟s Guide Front panel operation： Press 【Config】+【Freq】key or【Freq】key, which shows RESOLUTION. Then press 【Enter】 key to enter into subdirectory, press 【<】or【>】 key to select suitable parameter, finally confirm by【Enter】key pressing. ● The speture time setting is stored in volatile memory. Default setting is 1s at power-on and after remote control reset ( 5 1/2 digits ).

  • Page 31: Null

    Digital Multimeter User‟s Guide Once find the maximum or minimum, multimeter beeps with the Min or Max annuiator incicating (only if beep function is on) . If the reading has no change but device beeps, the possibility is that the internal resolution of multimeter bigger than display resolution. Front panel operation：...

  • Page 32: Dbm

    Digital Multimeter User‟s Guide Front panel operation： Press 【Shift】+ 【dB】key to excute dB operation.Then press 【Config】 + 【Shift】 + 【dB】 key and get down to parameter level to select suitable parameter by 【<】, 【>】, 【∧】 or 【∨】keys if you want to change voltage. ●...

  • Page 33: Limit Testing

    Digital Multimeter User‟s Guide ● Press 【MX+B】key again to disable the function. ● Reference voltage is stored in volatile memory, default setting is +1.000000^ when power-on or after remote interface reset. 3.3.6 % % operation calculates the percentage of measurements value to target value. Percent=(Input-Reference)/Reference×100% Input is input signal, Reference is target value Front panel operation：...

  • Page 34: Trigger

    Digital Multimeter User‟s Guide You can trigger the multimeter using manual trigger or auto trigger. Each trigger has many readings. Single triggering takes one reading, but you can set the readings number for each trigger (50000 at most). The processing of trigger 3.4.1 To select trigger source You can trigger the multimeter from front panel using Single trigger, Ext Trig terminal hardware trigger, auto trigger, or from the remote interface using BUS trigger, Ext Trig...

  • Page 35: Sampling Numbers

    Digital Multimeter User‟s Guide Single trigger is only enabled from front panel. When you press the key, multimeter takes one reading or specified readings (sampling count). When multimeter waits for next trigger, the annuiator “Tig” is on. Front panel operation: press 【Sin/Ex】key to enable single trigger. 3.4.2 Sampling numbers Multimter takes one reading each time it receives one trigger signal as selected source if multimeter is at the waiting state.

  • Page 36: System Operation

    Digital Multimeter User‟s Guide 【Config】+【Enter】key, which display 1: TRIG MENU. Then press【Enter】key to enter into menu and select option 1: READ HOLD by【<】or【>】key. Press 【Enter】key again to show percentage and select suitable parameter by 【<】or【>】key. Finally press【Enter】 key to confirm. (2) To excute the read hold function, press【Shift】+【Digits】key. ●...

  • Page 37: Firmware Vesion Inquiry

    Digital Multimeter User‟s Guide If disable the beep, the multimeter won‟t beep in below conditions: ① For MAX/MIN function, it finds out the maximum and minimum. ② For Read Hold function, it captures the stable reading. ③ For Limit Test function, it is out of the limitation. ④...

  • Page 38: Calibration

    Digital Multimeter User‟s Guide If you select GPIB interface for multimeter, only one address set for, the range from 0 to 31, default address is 22 when out of factory. If you select RS232 interface, you need to set the baud rate for multimter, 6 options for your choice, 300, 600, 1200, 2400 and 9600.
  • Page 39 Digital Multimeter User‟s Guide If multimter under protection, you will see above command when enter into CAL MENU. At the same time, the command 2:CALTBRATE will be hidden, if user want to unlock the protection and please select SECURED command and input password, finally press 【Enter】...
  • Page 40 Digital Multimeter User‟s Guide MENU by 【<】 or【>】key. Then press 【Enter】 key to enter inot menu and select. Also press 【Enter】 key to enter into the parameter setting.

  • Page 41: Chapter 4 Remote Interface

    Digital Multimeter User‟s Guide Chapter 4 Remote Interface 4.1 SCPI language SCPI (Standard Commands for Programmable Instruments) is a standardized set of commands and be based on ASCII code ， through the remote interface to programmer control the instruments. Based on the level structure (or named as tree system), SCPI commands in this system belongs to common root, which forms as the sub-system.
  • Page 42 Digital Multimeter User‟s Guide Brace { } contains the parameter options of command string, but itself won‟t be send with command. Separating character |: separate several parameter options, only one parameter option could be chosen at one time. Angular bracket < > indicates this option is a parameter value, but itself won‟t be send with command.
  • Page 43 Digital Multimeter User‟s Guide VOLTage : DC:RANGe{<ranged{MINimum}MAXimum } Select a pecified range. MIN is the mimum of range and MAX is maximum of range. Setting of inqure parameters: You can add interrogation ? in the end of command to query the current value of parameters. For example, the below command to sample count 10 readings: "SAMP:COUNt 10"...
  • Page 44 Digital Multimeter User‟s Guide Numeric value parameter is presented by decimal number, composed by digits, minus and decimal point. Floating-point number could be used to indicate either. You also can use two special values Minimum and Maximum to instead parameter value of command.

  • Page 45: Command Set

    Digital Multimeter User‟s Guide E index <nl> new line charater <cr> c 4.2 Command set MEASure :VOLTage:DC? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :VOLTage:AC? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :CURRent:DC? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :CURRent:AC? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :RESistance? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :FRESistance? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :FREQuency? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :PERiod? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :CONTinuity? :DIODe? :CAP? CONFigure :VOLTage:DC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :VOLTage:DC:RATio {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF :VOLTage:AC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :CURRent:DC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :CURRent:AC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF}...
  • Page 46 Digital Multimeter User‟s Guide :PERiod {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} :CONTinuity :DIODe :CAP CONFigure? [SENSe:] FUNCtion "VOLTage:DC" FUNCtion "VOLTage:AC" FUNCtion "CURRent:DC" FUNCtion "CURRent:AC" FUNCtion "RESistance" FUNCtion "FRESistance" FUNCtion "FREQuency" FUNCtion "PERiod" FUNCtion "CONTinuity" FUNCtion "DIODe" FUNCtion " TEMPerature " FUNCtion " CAP " FUNCtion? [SENSe:] VOLTage:DC:RANGe {<range>|MINimum|MAXimum} VOLTage:DC:RANGe? [MINimum|MAXimum]...
  • Page 47 Digital Multimeter User‟s Guide CURRent:DC:RANGe? [MINimum|MAXimum] CURRent:AC:RANGe {<range>|MINimum|MAXimum} CURRent:AC:RANGe? [MINimum|MAXimum] RESistance:RANGe {<range>|MINimum|MAXimum} RESistance:RANGe? [MINimum|MAXimum] FRESistance:RANGe {<range>|MINimum|MAXimum} FRESistance:RANGe? [MINimum|MAXimum] FREQuency:VOLTage:RANGe {<range>|MINimum|MAXimum} FREQuency:VOLTage:RANGe? [MINimum|MAXimum] PERiod:VOLTage:RANGe {<range>|MINimum|MAXimum} PERiod:VOLTage:RANGe? [MINimum|MAXimum] CAPacity:RANGe {<range>|MINimum|MAXimum} UNIT:TEMPerature {Cel|Far|K} UNIT:TEMPerature? TEMPerature:RTD:TYPE {PT100|D100|F100|PT385|PT3916} TEMPerature:RTD:TYPE? [SENSe:] VOLTage:DC:RANGe:AUTO {OFF|ON} VOLTage:DC:RANGe:AUTO? VOLTage:AC:RANGe:AUTO {OFF|ON} VOLTage:AC:RANGe:AUTO? CURRent:DC:RANGe:AUTO {OFF|ON} CURRent:DC:RANGe:AUTO?
  • Page 48 Digital Multimeter User‟s Guide RESistance:RANGe:AUTO {OFF|ON} RESistance:RANGe:AUTO? FRESistance:RANGe:AUTO {OFF|ON} FRESistance:RANGe:AUTO? FREQuency:VOLTage:RANGe:AUTO {OFF|ON} FREQuency:VOLTage:RANGe:AUTO? PERiod:VOLTage:RANGe:AUTO {OFF|ON} PERiod:VOLTage:RANGe:AUTO? CAPacity: RANGe:AUTO {OFF|ON} CAPacity: RANGe:AUTO? [SENSe:] not apply to frequency and period measurement VOLTage:DC:RESolution {<resolution>|MINimum|MAXimum} VOLTage:DC:RESolution? [MINimum|MAXimum] VOLTage:AC:RESolution {<resolution>|MINimum|MAXimum} VOLTage:AC:RESolution? [MINimum|MAXimum] CURRent:DC:RESolution {<resolution>|MINimum|MAXimum} CURRent:DC:RESolution? [MINimum|MAXimum] CURRent:AC:RESolution {<resolution>|MINimum|MAXimum} CURRent:AC:RESolution? [MINimum|MAXimum] RESistance:RESolution {<resolution>|MINimum|MAXimum}...
  • Page 49 Digital Multimeter User‟s Guide [SENSe:] VOLTage:DC:NPLCycles {MINimum|MAXimum} Integral time VOLTage:DC:NPLCycles? [MINimum|MAXimum] CURRent:DC:NPLCycles {MINimum|MAXimum} CURRent:DC:NPLCycles? [MINimum|MAXimum] RESistance:NPLCycles {MINimum|MAXimum} RESistance:NPLCycles? [MINimum|MAXimum] FRESistance:NPLCycles {0.02|0.2|1|10|100|MINimum|MAXimum} FRESistance:NPLCycles? [MINimum|MAXimum] [SENSe:] FREQuency:APERture {0.1|1|MINimum|MAXimum} aperture time FREQuency:APERture? [MINimum|MAXimum] PERiod:APERture {0.1|1|MINimum|MAXimum} PERiod:APERture? [MINimum|MAXimum] [SENSe:] DETector:BANDwidth {20|100|200|MINimum|MAXimum} specify the lowest frequency input to determin the AC filter speed DETector:BANDwidth? [MINimum|MAXimum]...
  • Page 50 Digital Multimeter User‟s Guide :FUNCtion? :STATe {OFF|ON} :STATe? CALCulate :AVERage:MINimum? :AVERage:MAXimum? :AVERage:AVERage? :AVERage:COUNt? CALCulate :PERCent:TARGet {<value>|MINimum|MAXimum} :PERCent:TARGet? [MINimum|MAXimum] CALCulate :NULL:OFFSet {<value>|MINimum|MAXimum} :NULL:OFFSet? [MINimum|MAXimum] CALCulate :DB:REFerence {<value>|MINimum|MAXimum} value=-200dbm~200dbm :DB:REFerence? [MINimum|MAXimum] CALCulate :DBM:REFerence {<value>|MINimum|MAXimum} :DBM:REFerence? [MINimum|MAXimum] CALCulate :LIMit:LOWer {<value>|MINimum|MAXimum} :LIMit:LOWer? [MINimum|MAXimum] :LIMit:UPPer {<value>|MINimum|MAXimum} :LIMit:UPPer? [MINimum|MAXimum]...
  • Page 51 Digital Multimeter User‟s Guide CALCulate :MXB:MMFactor {<value>|MINimum|MAXimum} :MXB:MMFactor? [MINimum|MAXimum] :MXB:MBFactor {<value>|MINimum|MAXimum} :MXB:MBFactor? [MINimum|MAXimum] Triggering Commands INITiate READ? TRIGger :SOURce {BUS|IMMediate |EXTernal} :SOURce? SAMPle :COUNt {<value>|MINimum|MAXimum} :COUNt? [MINimum|MAXimum] System-Related Commands FETCh? READ? DISPlay {OFF|ON} DISPlay? SYSTem :BEEPer :BEEPer:STATe {OFF|ON} :BEEPer:STATe? SYSTem:ERRor? SYSTem:VERSion?

  • Page 52: Simple Programing

    Digital Multimeter User‟s Guide DATA:POINts? *RST *IDN? RS-232 Interface Commands SYSTem:LOCal SYSTem:REMote SYSTem:RWLock 4.3 Simple programing MEASure? command Using MEASure? Command is the simplest method for measurement, but this command is not so flexible and not allowed to change any settings except of function, range and resolution).

  • Page 53: Measure? And Configure Command

    Digital Multimeter User‟s Guide If measure the frequency, the unit of resolution should be Hz. READ? command READ? Command is used to change the trigger system status from “Idle” to “Wait trigger”. After receiving READ? Command, measurement starts once it meets with the specified trigger conditions and the reading will be send to ouput buffer.
  • Page 54 Digital Multimeter User‟s Guide DEF} Measure the AC voltage as specified range and resolution and send the readings to outpu buffer. For this measurement, the resolution is fixed as 5 1/2 digits, and this paramenter only effects the front panel displaying. MEASure : CURRent:DC?{<range>|MIN|MAX|DEF} ，...
  • Page 55 Digital Multimeter User‟s Guide When there is no input, the measurement result is 0. MEASure : CONTinuity? Preset and excute the continuous measurement and send the readings to output buffer. For this measurement, range and resolution are both fixed as 1kHz and 3 1/2 digits. MEASure : DIODe? Preset and excute the diode measurement and send the readings to output buffer.
  • Page 56 Digital Multimeter User‟s Guide this command does not enable the measurement. For this measurement, the resolution is fixed as 5 1/2 digits, and this paramenter only effects the front panel displaying. CONFigure:RESistance{<range>|MIN|MAX|DEF}，{< resolution>|MIN | MAX| DEF} Preset and conofigure the 2-wire resistance measurement as specified range and resolution, and this command does not enable the measurement.

  • Page 57: Function Commands

    Digital Multimeter User‟s Guide Preset and configure the temperature measurement and this command wil not enable the mesurement For this measurement, resolution is fixed as 3 1/2 digits. CONFigure? Query the current configuration and return a quoted charater string. 4.3.2 FUNCtion commands FUNCtion"<function>”...
  • Page 58 Digital Multimeter User‟s Guide <function>:RANGe?[MIN|MAX] Query the measurement range for selected function. <function>:RANGe:AUTO{OFF|ON} Enable or disable the auto function for specified functions. For period and frequency measurement, please use FREQuency : VOLTage or PERiod:VOLTage. The threshold for auto setting is: low range should be less than 10% of full range and high range should be more than 120%.

  • Page 59: Math Operation Commands

    Digital Multimeter User‟s Guide Select aperture time or gate time of frequency measurement, default value is 1s. You can specify 100ms (default value is 4 1/2 digits), or 1s (5 1/2 digits). MIN=0.lS MAX=lS, which are stored in volatile memory. FREQuency:APERture?[MIN|MAX] Query the aperture time for frequency measurement.
  • Page 60 Digital Multimeter User‟s Guide CALCulate:FUNCtion{ NULL|DB|DBM|AVERage|LIMit|MXB|PERCent} Select math function and only one selected for each time. Default function is Zero, the setting of which is stored in volatile memory. CALCulate:FUNCtion? Query the current calculation function and returned valued is NULL, DB, DBM, AVER, LIMa, MXB or PERC.
  • Page 61 Digital Multimeter User‟s Guide by remote interface, the multimter will clear this value, for the value is stored in volatile memory. CALCulate:NULL:OFFSet{<Value>|MIN|MAX} Save the zero value in zero register. Before writing in calculation register, you must enable the calculation first and the zero setting can be set within the range from 0 to 士 120 of full range.

  • Page 62: Trigger

    Digital Multimeter User‟s Guide CALCulate:LIMit:UPPer{ <Value>|MIN|MAX} Set the higher limit for limit calculation within the range from 0 to 士 120% of full range, the setting is stored in volatile memory. CALCulate:LIMit:UPPer{ MIN| MAX} Query the higher limit. 4.3.4 Trigger INITiate INITiate Command is used to change the trigger system status from “Idle”...

  • Page 63: System Commands

    Digital Multimeter User‟s Guide Query the sample count. 4.3.5 System commands FETCh? Send the reading from internal memory to output buffer, and you can read them by bus controller. SYSTem:BEEPer Sound a beep at once. SYSTem:BEEPer:STATe { OFF|ON} Disable or enable the front beep. The setting is stored in volatile memory. SYSTem:BEEPer:STATe? Query the front beep status and returned value is 0 (OFF) or 1 (ON).

  • Page 64: Chapter 5 Service And Support

    Digital Multimeter User‟s Guide Chapter 5 Service and Support 5.1 Warranty We will give one year‟s warranty to maintaining or replacing since consignment for the verified quality problem of the product. Except for this explanation and the description in the warranty card, the company has no other warranty, in proclamation or in implication.

  • Page 65: Chapter 6 Specifications

    Digital Multimeter User‟s Guide Chapter 6 Specifications 6.1 General Specifications Power Voltage: 110V/220V（1±10%） Power frequency: 50Hz/60Hz Consumption： 15VA Enviroment Working temperature: 0℃～40℃ Storage temperature: -20℃～60℃ 0℃～28℃ ≤80%RH（Resistance range≥10M, ≤70%RH） Working humity: 28℃～40℃ < 70%RH Storage humity: -20℃～60℃ < 80%RH Dimensions HхWхD: 106mm×260mm×375mm Weight:...
  • Page 66 Digital Multimeter User‟s Guide Measurement Function Slow Speed Medium Speed Fast Speed DC Voltage DC Current AC Voltage AC Current 2-Wire 4-Wire 12.5 Capacitance Temperature Frequency Diode Continuity DC Voltage Range Full Scale Resolution Input Impedance 5 1/2 4 1/2 ≥10,000MΩ...
  • Page 67 Digital Multimeter User‟s Guide 1000V 0.015+8 100mV 0.02+4 0.02+2 0.02+2 100V 0.02+2 1000V 0.02+2 (1)relative zero mode（ZERO） Max. Input Voltge: 1000V for whole ranges (dc or ac peak value) DC Current Accuracy Range Full Scale Resolution 10mA 12.00000mA 0.1µA 100mA 120.000mA 1µA 1.20000A...
  • Page 68 Digital Multimeter User‟s Guide AC Voltage Range Full Scale Resolution Input Impedance 1MΩ 100mV 119.999mV 1µV 1.19999V 10µV Shunt capacitance ＜100PF 11.9999V 100µV 100V 119.999V 750V 750.00V 10mV (1) 20% overranged value could be read for all ranges except of 750V ranges. Accuracy Speed Range...
  • Page 69 Digital Multimeter User‟s Guide 100KHz-300KHz 0.05+0.005 (1V-750V)20Hz-45Hz 0.01+0.005 45Hz-20KHz 0.01+0.005 20KHz-50KHz 0.01+0.005 50KHz-100KHz 0.05+0.005 100KHz-300KHz 0.05+0.005 Measuring mode: true RMS Max. Crest factor: 3.0 at full scale Max. Input: 750Vrms Any range input can be up to the multiple of 3x10 voltage and frequency Input impedance: 1 MΩ...
  • Page 70 Digital Multimeter User‟s Guide AC Current Frequency Range Temperature Coefficient 0℃-18℃, 28℃-40℃ 20-45 0.015+0.02 45-2KHz 0.015+0.01 2KHz-5KHz 0.015+0.01 5KHz-10KHz 0.015+0.01 Measuring mode: true RMS Max. Crest factor: 3.0 at full scale Input protection: 10A 250V fuse 2-4 wire Resistance Range Full Scale Resolution Pass Current...
  • Page 71 Digital Multimeter User‟s Guide 100MΩ 2.0+20 100Ω 0.03+28 (2) 1kΩ 0.03+28 (2) 10kΩ 0.03+28 (2) 100kΩ 0.03+28 1MΩ 0.04+28 10MΩ 0.25+28 100MΩ 2.0+40 (1) To avoid the noise interference to test lead, the shield leads are suggested for resistance measurement above 100kΩ. (2) relative zero mode (ZERO) Capacitance Range...
  • Page 72 Digital Multimeter User‟s Guide Speed Max.Reading Resolution 1.19999 10µV Max. input protection: 1000Vdc or 750Vac Max. 1.2V stabilivolt measurement Frequency Frequency Range Gate Time Resolution Full scale 5-100Hz 1s(slow) 1mHz 099.999Hz 100-1k 1mHz 999.999Hz 1-10k 10mHz 9.99999kHz 10-100k 100mHz 99.9999kHz 100-980k 1000.00kHz Accuracy...
  • Page 73 LUMEL S.A. ul. Sulechowska 1, 65-022 Zielona Góra, POLAND tel.: +48 68 45 75 100, fax +48 68 45 75 508 www.lumel.com.pl Export department: tel.: (+48 68) 45 75 139, 45 75 233, 45 75 321, 45 75 386 fax.: (+48 68) 32 54 091...

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