Đồng hồ vạn năng Tonghui TH1941, 4-1/2 digit

■ 21,000/51,000-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 25 meas/sec

■ DCV accuracy up to 0.02%, resolution up to 10µV

■ 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 providing c o n v e n i e n t system communication

Specification:

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

Input impedance

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

500 Hz

510.00

0.01Hz

0.01+0.02

200mV rms

510.00

0.01Hz

0.01+0.02

200mV rms

5kHz

5.1000

0.1Hz

0.01+0.02

300mV rms

5.1000

0.1Hz

0.01+0.02

300mV rms

50kHz

51.000

1Hz

0.01+0.008

300mV rms

51.000

1Hz

0.01+0.008

300mV rms

500kHz

999.99

10Hz

0.01+0.008

500mV rms

999.99

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