General introduction

Digital multimeter (V-I-Hz) are is used to measure and display three phase voltage, three phase current and frequency in power system.It supplys the view functions of max.and min.value of voltage and current and the max.demand value of current.

Technical parameters

1.Measuring range(can overload 1.2 times continuously)

Voltage

Direct measurement:AC 100V,220V/380V or 500V

Current:
Direct measurement: AC 1A or 5A
External current transformer: AC */1A or */5

Frequency: 45~65Hz

2.Accuracy: class 0.5

3.Sampling rate: 1.5 times/s

4. input circuit power consumption: <0.5VA/phase

5.Display resolution: voltage max. 0.1V, current max.0.001A, frequency 0.01Hz

6.Auxiliary power supply: AC220V ??15%, 50/60Hz,<3VA

7.Working environment: places which is free of gas corruption with
temperature:-10~50??,humidity:<85%RH