Tonghui TH1953 Operation Manual Download

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OPERATION MANUAL

TH1953/63

Digital Multimeter

Changzhou Tonghui Electronic Co., Ltd.

www.tonghui.com.cn

Summary of Contents for TH1953

Page 1: ...OPERATION MANUAL TH1953 63 Digital Multimeter Changzhou Tonghui Electronic Co Ltd www tonghui com cn...

Page 2: ...urement 18 3 2 1 DC Voltage 18 3 2 2 DCV Ratio 19 3 2 3 AC Voltage 20 3 2 4 DC Current 21 3 2 5 AC Current 22 3 2 6 Resistance 2W 23 3 2 7 Resistance 4W 25 3 2 8 Capacitance Measurement 26 3 2 9 Diode...

Page 3: ...MIN MAX and DEF parameters 45 7 1 4 Query Parameter Settings 45 7 1 5 Parameter Type 45 7 2 Subsystem commands 46 7 2 1 CONFigure Subsystem 46 7 2 2 MEASure subsystem 49 7 2 3 TRIGger subsystem 52 7 2...

Page 4: ...to 750V peak value of 1000V DC current from 10nA to 10A AC current from 10nA to 10A Resistance measurement from 0 01m to 120M Frequency from 2Hz to 1MHz Some additional capabilities of Model TH1953 6...

Page 5: ...re shipment After unpacking all items from the shipping carton please check for any obvious signs of physical damage that may have occurred during transportation Report any damage to the shipping agen...

Page 6: ...s software or problems arising from normal wear or failure to follow instructions THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILIT...

Page 7: ...ing 1 year TCAL 5 C Typical Input Impedance 100 000mV 1uV 119 999mV 0 012 0 008 2 10G 1 1 00000V 10uV 1 19999V 0 010 0 005 10G 1 10 0000V 100uV 11 9999V 0 010 0 005 10G 1 100 000V 1mV 119 999V 0 010 0...

Page 8: ...icators Range Test Current Resolution Full Scale Reading 1 year TCAL 5 C 1k 1mA 10m 1199 99 0 030 0 004 Diode test technical indicators Range Test Current Resolution Full Scale Reading 1 year TCAL 5 C...

Page 9: ...A 11 9999A 4 1 00 0 03 0 5 0 03 0 30 0 04 Frequency test count indicator 13 14 Frequency Resolution Full Scale Reading 1 year TCAL 5 C 3Hz 10Hz 2 10uHz 9 99999Hz 0 050 50 10Hz 100Hz 100uHz 99 9999Hz 0...

Page 10: ...e a change in the voltage drop across the diode junction 13 Unless otherwise stated the specifications are valid when the instrument has warmed up for 60 minutes and have a sine wave input Specificati...

Page 11: ...le speed 7 External trigger or remote operation using the default stable delay automatic delay 8 Use the default maximum value set the delay to expire Chapter 3 Specifications for TH1963 Technical des...

Page 12: ...0008 100 0000 10mA 0 1m 0 0030 0 0020 0 0080 0 0030 0 0100 0 0040 0 0006 0 0005 1 000000k 1mA 1m 0 0020 0 0005 0 0080 0 0010 0 0100 0 0010 0 0006 0 0001 10 00000k 100uA 10m 0 0020 0 0005 0 0080 0 001...

Page 13: ...02 0 05 0 03 0 06 0 03 0 07 0 03 20kHz 50kHz 0 10 0 04 0 11 0 05 0 12 0 05 0 13 0 05 50kHz 100kHz 0 55 0 08 0 60 0 08 0 60 0 08 0 60 0 08 100kHz 300kHz 4 00 0 50 4 00 0 50 4 00 0 50 4 00 0 50 AC curre...

Page 14: ...ro is enabled For AC The technical specifications are valid after 60 minutes of preheating slow AC filtering and sine wave 2 Outside the range of TCAL 5 C the temperature coefficient is increased by 1...

Page 15: ...s attenuation in the latter stage so the input voltage of the test signal should be relatively larger If the test signal is 1V 1MHz the input signal is preferably greater than 50 of the range 16 The s...

Page 16: ...sing this multimeter 4 1 Front Panel Menu Reference Key Usage DCV DCI To configure the DC voltage measurement including DC ratio measurement Range 100mV 1V 10V 100V 1000V Automatically adjust the rang...

Page 17: ...wire test R0 resistance at 0 C default 100 NPLC 0 02 0 2 1 10 100 Default 10 PLC Unit C F K Count diode Conduction continuous configuration Test range 1k Test current 1mA Buzzer ON default or OFF Doo...

Page 18: ...nge Auto can automatically selects the appropriate range for measurement based on the input signal The auto range is adjusted upwards to 120 of the current range and down to 10 of the current range St...

Page 19: ...subsequent measured parameters The DMM makes a new offset measurement each time you change the function range or integration time The red mark is indicating the auto zero is ON If the OFF state is re...

Page 20: ...e the 100 mVAC signal with a 10 VDC bias voltage as an example the 10 VDC bias voltage should be stable at 1 50 of 100mVAC or 1 50 of 2mVDC The ACV function should be selected after the signal is conn...

Page 21: ...more accurate test results or faster test speeds 4 2 4 DC Current Step 1 Configure the test leads as follows Step 2 Press the shift button on the front panel and press DCV to select the DCI function a...

Page 22: ...e test time With auto zero enabled the multimeter internal offset is measured each time the input signal is measured Then subtract the offset from the previous reading This avoids the effect of the of...

Page 23: ...ose should be less than the frequency of your test signal In order to get stable data faster the filter is best chosen to be close to the test frequency of your input signal For example if the input s...

Page 24: ...al The auto range is adjusted upwards to 110 of the current range and down to 10 of the current range Step 4 Set the integration time The setting of the integration time affects the measurement speed...

Page 25: ...l multimeter measures the offset once and subtracts the offset from all subsequent measured parameters The DMM makes a new offset measurement each time you change the function range or integration tim...

Page 26: ...r the measurement 1PLC 10PLC 100PLC can inhibit the power supply noise Selecting 100PLC can provide the best noise rejection but at a slower rate 4 2 8 Capacitance Measurement Step 1 Configure the tes...

Page 27: ...nel to enter the capacitance test interface Beeper is the switch menu of the buzzer If it is ON the buzzer is turned on When converted to a 0 3V to 0 8V threshold the instrument beeps if a beep is ena...

Page 28: ...measurement method is as follows 10 Display the measured resistance and beeps if the buzzer is enabled 10 1 2 k Display measured resistance no buzzer 1 2 k Dsplay OPEN ON no buzzer 4 2 11 Temperature...

Page 29: ...timeter DMM input circuit from affecting the measurement accuracy With auto zero disabled the digital multimeter measures the offset once and subtracts the offset from all subsequent measured paramete...

Page 30: ...and 200Hz The filter you choose should be less than the frequency of your test signal In order to get stable data faster the filter is best chosen to be close to the test frequency of your input sign...

Page 31: ...31 Frequency Display the frequency in period measurement...

Page 32: ...minimum Min maximum Max peak to peak P P average Average standard deviation Std dev and total number of samples in the current reading buffer The reading buffer can hold up to 10 000 data When the rea...

Page 33: ...e calculation of reading X on screen is performed as follows Where X is the normal display reading on screen m and b is the user entered value Y is the displayed result 5 7 Percent If the percent calc...

Page 34: ...Set Ready DSR 6 6 Data Carrier Detect DCD 8 1 Data Terminal Ready DTR 20 4 Transmitted the data TXD 2 3 Receive the data RXD 3 2 Grounding GND 7 5 Like most serial ports in the world the serial inter...

Page 35: ...in 4 and 6 pin 7 and 8 should be shorted respectively at the computer connector 2 Sending and receiving data format TH1953 63 uses full duplex asynchronous communication transmission mode with start b...

Page 36: ...from the serial interface at the same time So the character sent by controller will be ignored In order to make sure the whole command is sent and received correctly the character without a return cha...

Page 37: ...ult is too small 22 VDD Output power 11 PASS1 Test is OK 23 EGND Connect the ground 12 FALL1 Test failed 24 EGND Connect the ground 1 When the Limit function is ON the trigger of the Handler interface...

Page 38: ...trigger time the pulse width must be greater than the width of T1 to trigger the test The difference between edge trigger and pulse width trigger edge trigger only needs the corresponding edge and th...

Page 39: ...e USB interface cable CAUTION To avoid electrical shock turn off the power supply when plugging or unplugging the connector do not short circuit the output terminals or short circuit with the chassis...

Page 40: ...ol command system is open so that user can use the PC operation interface provided by TH1953 63 or take measurements by the control command system The control command system supports most functions of...

Page 41: ...nction the MTA is cancelled no listening function RL1 Remote control local function DC1 Device clear function DT1 Device trigger function C0 No controller function E1 Open collector drive 6 5 2 Settin...

Page 42: ...cal control and the buttons on the panel are active DCL CLEAR Clear all instrument input and output buffers SDC CLEAR 8 Clear the input and output buffer of TH1963 GET TRIGGER 8 Trigger the instrument...

Page 43: ...the buzzer and brightness Press Menu Utility System User Settings to enter into the setup menu to set the sound and brightness Beeper and Key Click are independent of each other and do not affect eac...

Page 44: ...rmats such as VOL and VOLTAG will generate an error Braces contain parameter options Braces are not sent with the command string The vertical line separates the parameter selection For example range M...

Page 45: ...COUN MIN TRIG COUN MAX 8 1 5 Parameter Type The SCPI language defines several data formats used for program information and response information 8 1 5 1 Numerical Parameter Commands that require nume...

Page 46: ...ouble quotes can be used The quote delimiter can also be part of a string just type it twice and don t add any characters in the middle The following command uses string parameters DISPlay TEXT quoted...

Page 47: ...mpty state of each function Forbidden 8 2 1 1 CONFigure Description Returns a quoted string indicating the current function range and resolution Syntax CONFigure Parameters none Example conf Typical r...

Page 48: ...A 10 A Default AUTO Example CONF CURR AC 100m 8 2 1 6 CONFigure CONTinuity Description Configure the instrument for continuity measurement setting all measurement parameters and trigger parameters to...

Page 49: ...t parameters and trigger parameters to default values Syntax CONFigure PERiod range MIN MAX DEF Parameters range 100m 1 10 100 750 Default AUTO Example CONF PER 10MA 8 2 1 12 CONFigure TEMPerature Des...

Page 50: ...o default values Syntax MEASure VOLTage AC DC range AUTO MIN MAX DEF Parameters AC range 100m 1 10 100 750 Default AUTO DC range 100m 1 10 100 1000 Default AUTO Example MEAS VOLT DC 100 Typical respon...

Page 51: ...100 1k 10k 100k 1MA 10MA 100MA Default AUTO Example MEAS FRES 100 Typical response 8 53210000E 01 8 2 2 6 MEASure FREQuency PERiod Description Configure the instrument to perform frequency or period...

Page 52: ...the trigger system from idle to wait for trigger and then clears the previous set of measurement result from the reading memory When the specified trigger condition is met after receiving the INIT com...

Page 53: ...3 4 R Description Read and erase all measurements from the reading memory Syntax R Parameters none Example R Typical response 4 98748741E 01 4 335163427E 01 4 33118686E 01 3 48109378E 01 8 2 3 5 READ...

Page 54: ...ce type Example Return ten sets of five DC voltage measurements and start each measurement group with an external trigger CONF VOLT DC SAMP COUN 5 TRIG COUN 10 TRIG SOUR EXT READ Typical response 1 00...

Page 55: ...170000E 00 4 27200000E 00 8 2 3 10 SAMPle COUNt Description Specifies the number of measurements number of samples taken each time the instrument is triggered You can use the specified sample count wi...

Page 56: ...ited by the filter cutoff frequency The 3Hz filter only supports slow SLOW the 20Hz filter supports slow SLOW and medium speed MEDium and the 200Hz filter supports slow SLOW medium speed MEDium and fa...

Page 57: ...MAX SENSe VOLTage DC NPLC MIN MAX DEF Parameters plc 0 02 0 2 1 10 100 Example VOLT NPLC 10 8 2 4 7 SENSe VOLTage DC IMPedance AUTO Description Enable or disable the automatic input impedance mode fo...

Page 58: ...quencies result in longer settling times Syntax SENSe CURRent AC BANDwidth filter MIN MAX SENSe CURRent AC BANDwidth MIN MAX DEF Parameters filter 3 20 200 Default 20 Example CURR AC BAND 200 8 2 5 2...

Page 59: ...N OFF SENSe CURRent AC DC RANGe AUTO Parameters ON 1 OFF 0 Example CURR AC RANG AUTO ON 8 2 5 6 SENSe CURRent AC DC TERMinals Description Enable or disable autoranging for AC and DC current measuremen...

Page 60: ...reads a new zero reading whenever you change the function range or integration time Syntax SENSe CURRent DC ZERO AUTO ON OFF SENSe CURRent DC ZERO AUTO Parameters ON 1 OFF 0 Example CURR ZERO AUTO ON...

Page 61: ...ENSe RESistance FRESistance SECondary Parameters OFF BEForemath Example RES SEC BEF 88 2 6 5 SENSe RESistance ZERO AUTO Description Enable or disable the auto zero mode for 2 wire resistors ON The DMM...

Page 62: ...ed by this command the instrument selects a slow 3 Hz medium 20 Hz or fast 200 Hz filter Specify the lowest frequency you want to encounter Lower frequencies result in longer settling times Syntax SEN...

Page 63: ...he measurement speed is slower Syntax SENSe TEMPerture NPLC plc MIN MAX SENSe TEMPerture NPLC MIN MAX DEF Parameters plc 0 02 0 2 1 10 100 Example TEMP NPLC 10 8 2 8 2 SENSe TEMPerture TRANsducer FRTD...

Page 64: ...it from affecting the measurement accuracy OFF The instrument uses the last measured zero return measurement and subtracts it from each measurement It reads a new zero reading whenever you change the...

Page 65: ...itance SECondary Parameters OFF BEForemath Example CAP BEF 8 2 10 SYSTem Subsystem I O Configuration 8 2 10 1 SYSTem COMMunicate RS232 BAUDrate Description Set the serial port baud rate Syntax SYSTem...

Page 66: ...T COMM LAN DNS1 192 168 1 4 8 2 10 6 SYSTem COMMunicate LAN GATeway Description Set the default route for the instrument Syntax SYSTem COMMunicate LAN GATeway address SYSTem COMMunicate LAN GATeway Pa...

Page 67: ...mmand 8 2 11 1 SYSTem BEEPer IMMediate Description Issue a single beep Syntax SYSTem BEEPer IMMediate Parameters none Example SYST BEEP 8 2 11 2 SYSTem BEEPer STATe Description Disable or enable the b...

Page 68: ...SYSTem DATE Syntax SYSTem TIME hour minute second SYSTem TIME Parameters hour 0 23 minute 0 59 second 0 59 Example SYST TIME 13 59 10 8 2 11 6 SYSTem VERSion Description Query the current software ver...

Page 69: ...n See 7 3 12 for the possible value of function To use a null value you must turn on the null state function NULL STATe ON Specifying a null value disables automatic null selection function NULL VALue...

Page 70: ...formed by the calibration function The DB performs a relative dB calculation The result is the difference between the input signal and the stored DB relative reference value CALCulate SCALe DB REFeren...

Page 71: ...tax CALCulate SCALe OFFSet offset CALCulate SCALe OFFSet Parameters offset Example CALC SCAL OFFSet 5 8 2 14 6 CALCulate SCALe REFerence Description Sets the reference value for the PCT function in CA...

Page 72: ...UPPer DATA Description Set the upper limit of the limit test Syntax CALCulate LIMit UPPer DATA value CALCulate LIMit UPPer DATA Parameters value set upper limit Example CALC LIM UPP 50 8 2 15 3 CALCul...

Page 73: ...me the statistics were cleared The query CALCulate AVERage ALL do not return the counts and peak to peak statistics The other six queries listed above return a single value 8 2 16 8 CALCulate AVERage...

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