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Chuyên Thiết Bị / Products / Digital Multimeter / Benchtop Multimeter /
Tonghui TH1941 Digit Multimeter
Tonghui TH1941 Digit Multimeter
Product Information
- Manufacturer: Tonghui
- Model: TH1941
- Warranty: 12 months
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Categories: Benchtop Multimeter, Digital Multimeter
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For orders from 3,000,000 VND
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Contact Ho Chi Minh City
Tel: (028).3977.8269 / 0906.988.447
Email: sales@lidinco.com
Contact Bac Ninh, Ha Noi City
Tel: (0222).730.0180
Email: bn@lidinco.com
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Descriptions
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.
Technical Parameter:
| Measurement Parameters | DC/AC Voltage, DC/AC Current, Resistance, Frequency, Period, Continuity, Diode |
| Math Function | %, dB, dBm, REL |
| Range | Auto, Manual |
| Display | VFD, dual display |
| Reading Mode | Single display: all measurement parameters Dual display: ACV+DCV, ACI+DCI, ACV+Hz, ACI+Hz, Readout+dB/dBm, Readout+Max/ Min |
| Trigger Mode | INT/MAN/BUS |
| Reading Hold | To find out the best stable reading for each data block of the given reading number according to given accuracy |
| Comparator | To judge HI, IN, LO and display, with ALARM atHI/LO(selectable) |
| Interface | RS232C(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 . | |||||||||||||||||||
| Model | TH1941 | TH1942 | |||||||||||||||||
| Speed (counts/second) | Slow | Middle | Fast | Slow | Middle | Fast | |||||||||||||
| DCV,DCI | 5 | 10 | 25 | 5 | 10 | 25 | |||||||||||||
| ACV,ACI | 5 | 10 | 25 | 5 | 10 | 25 | |||||||||||||
| Ω | 5 | 10 | 25 | 5 | 10 | 25 | |||||||||||||
| AC+DC | 1.2 | 1.4 | 1.5 | 1.2 | 1.4 | 1.5 | |||||||||||||
| Freq | 1 | 2 | 3.9 | 1 | 2 | 3.9 | |||||||||||||
| DC Voltage | Max. Reading | Resolution | Accuracy | Inputimpedance | Max. Reading | Resolution | Accuracy | Input impedance | |||||||||||
| Range | 200mV/500mV | 210.00 | 10µV | 0.03+0.04 | 10MΩ | 510.00 | 10µV | 0.02+0.016 | 10MΩ | ||||||||||
| 2V/5V | 2.1000 | 100µV | 0.03+0.02 | 11.1MΩ | 5.1000 | 100µV | 0.02+0.008 | 11.1MΩ | |||||||||||
| 20V/50V | 21.000 | 1mV | 0.03+0.02 | 10.1MΩ | 51.000 | 1mV | 0.02+0.008 | 10.1MΩ | |||||||||||
| 200V/500V | 210.00 | 10mV | 0.03+0.02 | 10MΩ | 510.00 | 10mV | 0.02+0.008 | 10MΩ | |||||||||||
| 1000V | 1200.00 | 100mV | 0.03+0.02 | 10MΩ | 1200.00 | 100mV | 0.02+0.008 | 10MΩ | |||||||||||
| DC Current | Max. Reading | Resolution | Accuracy | Load Voltage/ Shunt Resistance | Max. Reading | Resolution | Accuracy | Voltage /Shunt | |||||||||||
| Range | 2mA/5mA | 2.1000 | 0.1µA | 0.08+0.025 | <0.3V/100Ω | 5.1000 | 0.1µA | 0.05+0.010 | <0.6V/100Ω | ||||||||||
| 20mAV/50mA | 21.000 | 1µA | 0.08+0.020 | <0.04V / 1Ω | 51.000 | 1µA | 0.05+0.008 | <0.06V / 1Ω | |||||||||||
| 200mA/500mA | 210.00 | 10µA | 0.08+0.020 | <0.3V / 1Ω | 510.00 | 10µA | 0.05+0.008 | <0.6V / 1Ω | |||||||||||
| 2A/5A | 2.1000 | 100µA | 0.3+0.025 | <0.05V / 10mΩ | 5.1000 | 100µA | 0.25+0.010 | <0.1V / 10mΩ | |||||||||||
| 20A | 20.000 | 1mA | 0.3+0.025 | <0.6V / 10mΩ | 20.000 | 1mA | 0.25+0.010 | <0.6V / 10mΩ | |||||||||||
| AC Voltage | 200mV | 2V | 20V | 200V | 750V | 500mV | 5V | 50V | 500V | 750V | |||||||||
| Resolution | 10µV | 100µV | 1mV | 10mV | 100mV | 10µV | 100µV | 1mV | 10mV | 100mV | |||||||||
| Accuracy | 20~50 Hz | 1.0+0.2 | —— | 1.0+0.08 | —— | ||||||||||||||
| 50~20 kHz | 0.5+0.15 | 0.4+0.05 | 0.8+0.075 | 0.5+0.06 | 0.35+0.02 | 0.50+0.03 | |||||||||||||
| 20k~50 kHz | 1.8+0.25 | 1.5+0.10 | 1.5+0.1 | 1.00+0.04 | |||||||||||||||
| 50k~100 kHz | 3.0+0.75 | 3.0+0.25 | 3.0+0.3 | 3.0+0.1 | |||||||||||||||
| AC current | 2mA | 20mA | 200mA | 2A | 20A | 5mA | 50mA | 500mA | 5A | 20A | |||||||||
| Resolution | 0.1µA | 1µA | 10µA | 100µA | 1mA | 0.1µA | 1µA | 10µA | 100µA | 1mA | |||||||||
| Accuracy | 20~50 Hz | 1.50+0.5 | 2.00+0.5 | 1.50+0.16 | 2.00+0.16 | ||||||||||||||
| 50~2 kHz | 0.5+0.3 | 0.5+0.3 | 0.5+0.08 | 0.5+0.1 | |||||||||||||||
| 2k~20 kHz | 2+0.5 | 2+0.38 | —— | 2+0.16 | 2+0.12 | —— | |||||||||||||
| Load Voltage/Shunt Resistance | Same as DC current | Same as DC current | |||||||||||||||||
| Resistance | Max. Reading | Resolution | Test Current | Accuracy | Max. Reading | Resolution | Test Current | Accuracy | |||||||||||
| Range | 200Ω/500Ω | 210.00 | 10mΩ | 0.5 mA | 0.10+0.05 | 510.00 | 10mΩ | 0.5 mA | 0.10+0.010 | ||||||||||
| 2 kΩ/5 kΩ | 2.1000 | 100mΩ | 0.45 mA | 0.10+0.025 | 5.1000 | 100mΩ | 0.45 mA | 0.10+0.008 | |||||||||||
| 20 kΩ/50 kΩ | 21.000 | 1Ω | 45μA | 0.10+0.025 | 51.000 | 1Ω | 45μA | 0.10+0.008 | |||||||||||
| 200 kΩ/500 kΩ | 210.00 | 10 Ω | 4.5μA | 0.10+0.025 | 510.00 | 10 Ω | 4.5μA | 0.10+0.008 | |||||||||||
| 2MΩ/5 MΩ | 2.1000 | 100 Ω | 450nA | 0.15+0.025 | 5.1000 | 100 Ω | 450nA | 0.15+0.008 | |||||||||||
| 20MΩ/50 MΩ | 21.000 | 1kΩ | 45nA | 0.30+0.05 | 51.000 | 1kΩ | 45nA | 0.30+0.010 | |||||||||||
| Frequency | Max. Reading | Resolution | Accuracy | Sensitivity | Max. Reading | Resolution | Accuracy | Sensitivity | |||||||||||
| Range | 5~10Hz | 9.9999 | 0.0001Hz | 0.05+0.02 | 200mV rms | 9.9999 | 0.0001Hz | 0.05+0.02 | 200mV rms | ||||||||||
| 10~100Hz | 99.999 | 0.001Hz | 0.01+0.02 | 300mV rms | 99.999 | 0.001Hz | 0.01+0.02 | 300mV rms | |||||||||||
| 100~100kHz | 999.99 | 0.1Hz | 0.01+0.008 | 300mV rms | 999.99 | 0.1Hz | 0.01+0.008 | 300mV rms | |||||||||||
| 100k~1MHz | 9999.9 | 10Hz | 0.01+0.008 | 500mV rms | 9999.9 | 10Hz | 0.01+0.008 | 500mV rms | |||||||||||
| Working temperature & humidity | 0°C-40°C, ≤90%RH | |
| Power supply | Voltage | 198V-242VAC,99V-121VAC |
| Frequency | 47.5Hz-63Hz | |
| Power consumption | ≤ 10 VA | |
| Dimensions (W×H×D) | 277mmx115mmx340mm | |
| Weight | Approx. 2.2 kg | |
