TH1941 Digit Multimeter
Performance characteristics

21,000-count display

 Large-screen dual-display VFD with high 

   brightness

 True RMS AC voltage and current measurements, 

   bandwidth up to 100kHz

 Measurement functions, including DCV/ACV, DCI/ACI, Ω,

   frequency/period, diode,Continuity, dBm,dB, etc.

 Parameters,such as AC+DC, AC+Hz, Readout+d B,

   Readout+d B m ,displayed synchronously

 Measurement speed up to 40ms

 DCV accuracy up to 0.02%, resolution up to10μV

 Measured value displayed in the form of percentage

 Relative mode (REL) to eliminate residual reading

 Calibration without opening the case

 Limit function (HI/IN/LO) for fast sorting

 Equipped RS232C communication interface

Brief Introduction

■ TH1941 4 1/2-digit true-RMS digital multimeter and TH1942 50,000-count digital multimeter are voltage,current,resistance tester with multi functions and low cost. The instrument can stably perform measurement at high speed as several times as competitive instruments in this class. It provides excellent performance, such as maximum reading of 21,000/51,000 counts, maximum DC voltage accuracy of 0.02%, and low cost to give you a best choice. Having VFD dual-display with high brightness, TH1941/TH1942 can synchronously display measurement parameters, such as AC/DC voltage or current, AC voltage/current and frequency to improve measurement efficiency and display results clearly. The instrument is equipped with SMD component inside to reduce density and physical size. The instrument comes standard with RS232C communication interface and common communication software is optional to meet the need of communication with computer, data analysis and statistics, and building up automatic test system. The instrument accepts SCPI command to ensure compatibility of communication software.


Application
Technical Parameter
MeasurementParametersDC/AC Voltage, DC/AC Current, Resistance,Frequency, Period, Continuity, Diode
Math Function%, dB, dBm, REL
RangeAuto, Manual
DisplayVFD, dual display
Reading ModeSingle display: all measurement parametersDual display: ACV+DCV, ACI+DCI, ACV+Hz, ACI+Hz, Readout+dB/dBm, Readout+Max/ Min
Trigger ModeINT/MAN/BUS
Reading HoldTo find out the best stable reading for each data block of the given reading number according to given accuracy
ComparatorTo judge HI, IN, LO and display, with ALARM atHI/LO(selectable)
InterfaceRS232C(only TH1942), supporting SCPI command



Measurement Condition
Calibration Cycle: one yearOperation Humidity:18°C−28°C, ≤90%RH; When resistor range is 10M and 100M, ≤70%RHWarming up Time: 30 minAccuracy is expressed as: +/- (% of reading + % of range)Temperature coefficient: 0°C--18°C & 28°C--40°C,+0.1%×accuracy /°CFollowing is the specification at slow mode, others please refer  the operation manual .
ModelTH1941TH1942               
Speed (counts/second)SlowMiddleFastSlowMiddleFast
DCV,DCI5102551025
ACV,ACI5102551025
Ω5102551025
AC+DC1.21.41.51.21.41.5
Freq123.9123.9
DC VoltageMax. ReadingResolutionAccuracyInputimpedanceMax. ReadingResolutionAccuracyInput impedance
Range200mV/500mV210.0010µV0.03+0.0410MΩ510.0010µV0.02+0.01610MΩ
2V/5V2.1000100µV0.03+0.0211.1MΩ5.1000100µV0.02+0.00811.1MΩ
20V/50V21.0001mV0.03+0.0210.1MΩ51.0001mV0.02+0.00810.1MΩ
200V/500V210.0010mV0.03+0.0210MΩ510.0010mV0.02+0.00810MΩ
1000V1200.00100mV0.03+0.0210MΩ1200.00100mV0.02+0.00810MΩ
DC CurrentMax. ReadingResolutionAccuracyLoad Voltage/ Shunt  ResistanceMax. ReadingResolutionAccuracyVoltage /Shunt
Range2mA/5mA2.10000.1µA0.08+0.025<0.3V/100Ω5.10000.1µA0.05+0.010<0.6V/100Ω
20mAV/50mA21.0001µA0.08+0.020<0.04V / 1Ω51.0001µA0.05+0.008<0.06V / 1Ω
200mA/500mA210.0010µA0.08+0.020<0.3V / 1Ω510.0010µA0.05+0.008<0.6V / 1Ω
2A/5A2.1000100µA0.3+0.025<0.05V / 10mΩ5.1000100µA0.25+0.010<0.1V / 10mΩ
20A20.0001mA0.3+0.025<0.6V / 10mΩ20.0001mA0.25+0.010<0.6V / 10mΩ
AC Voltage200mV2V20V200V750V500mV5V50V500V750V
Resolution10µV100µV1mV10mV100mV10µV100µV1mV10mV100mV
Accuracy20~50 Hz1.0+0.2------1.0+0.08------
50~20 kHz0.5+0.150.4+0.050.8+0.0750.5+0.060.35+0.020.50+0.03
20k~50 kHz1.8+0.251.5+0.101.5+0.11.00+0.04
50k~100 kHz3.0+0.753.0+0.253.0+0.33.0+0.1
AC current2mA20mA200mA2A20A5mA50mA500mA5A20A
Resolution0.1µA1µA10µA100µA1mA0.1µA1µA10µA100µA1mA
Accuracy20~50 Hz                1.50+0.5           2.00+0.5               1.50+0.16        2.00+0.16
50~2 kHz0.5+0.30.5+0.30.5+0.080.5+0.1
2k~20 kHz2+0.52+0.38------2+0.162+0.12------
Load Voltage/Shunt ResistanceSame as DC currentSame as DC current
ResistanceMax. ReadingResolutionTest CurrentAccuracyMax. ReadingResolutionTest CurrentAccuracy
Range200Ω/500Ω210.0010mΩ0.5 mA0.10+0.05510.0010mΩ0.5 mA0.10+0.010
2 kΩ/5 kΩ2.1000100mΩ0.45 mA0.10+0.0255.1000100mΩ0.45 mA0.10+0.008
20 kΩ/50 kΩ21.00045μA0.10+0.02551.00045μA0.10+0.008
200 kΩ/500 kΩ210.0010 Ω4.5μA0.10+0.025510.0010 Ω4.5μA0.10+0.008
2MΩ/5 MΩ2.1000100 Ω450nA0.15+0.0255.1000100 Ω450nA0.15+0.008
20MΩ/50 MΩ21.0001kΩ45nA0.30+0.0551.0001kΩ45nA0.30+0.010
FrequencyMax. ReadingResolutionAccuracySensitivityMax. ReadingResolutionAccuracySensitivity
Range5~10Hz9.99990.0001Hz0.05+0.02200mV rms9.99990.0001Hz0.05+0.02200mV rms
10~100Hz99.9990.001Hz0.01+0.02300mV rms99.9990.001Hz0.01+0.02300mV rms
100~100kHz999.990.1Hz0.01+0.008300mV rms999.990.1Hz0.01+0.008300mV rms
100k~1MHz9999.910Hz0.01+0.008500mV rms9999.910Hz0.01+0.008500mV rms



Working temperature & humidity0°C-40°C, ≤90%RH
Power supplyVoltage198V-242VAC,99V-121VAC
Frequency47.5Hz-63Hz
Power consumption≤ 10 VA
Dimensions (W×H×D)277mmx115mmx340mm
WeightApprox. 2.2 kg


Accessary
Standard
Accessories nameModel
Multimeter test cable TH26036(JC-BBA03601)
Optional
Accessories nameModel
TH1951/61 four-terminal test line TH26039
Data download
Name of dataDownload Link
SpecificationDownload
TH1941 Operation Manual Download
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