Main functional features

The power frequency equivalence of measurement is good. The test current waveform is sinusoidal, and the difference between frequency and power frequency is only 5Hz. Two frequencies, 45Hz and 55Hz, are used for measurement.

Strong anti-interference ability. The instrument adopts different frequency measurement method, with modern software and hardware filtering technology, making the instrument has high anti-interference performance, stable and reliable test data.

High precision. The basic error is only 0.005 ω, which can be used to measure large ground networks with small grounding impedance.

Powerful. Measuring current pile, voltage pile, grounding resistance, step voltage, contact voltage.

Simple to operate. Full Chinese menu operation, directly display the measurement results. Wiring small labor, no need for large current line.

Main technical parameters

Impedance measurement range: 1M ω to 200 ω

Resolution: 0.001 ω

Measurement error: ± (reading × 2% +0.005 ω)

Power frequency 50Hz voltage interference capacity: 10V

Test current waveform: sine wave

Test current frequency: 45Hz, 55Hz dual frequency

Maximum output current: 5 ampere

Maximum output voltage: 400V

Measurement Line requirements

The cross-sectional area of the copper core of the current cable is greater than or equal to 1.5mm²

The cross-sectional area of the copper core of the electric voltage cable is ≥1.0mm²

Power supply: AC220V± 10%, 50Hz

Dimensions: 440×350×210 Weight: 10kg