Users’ Guide for Earth Ground Resistance Tester
Specifications
3. Specifications
Air temperature:23
5℃ Relative humidity: <75%
3.1 Range Specifications
Range Precision
Earth Ground Resistance 10Ω ±(1%rdg+3d)
4000Ω ±(4% rdg +4d)
Earth Voltage AC50V（50/60HZ） ±(2% rdg +4d)
3.2 Measurement method
Constant Current Conversion is used for the measurement of earth resistance, with the frequency of the testing current
about 800HZ and the size about 3mA.
Average rectification is used for the measurement of earth voltage.
3.3 Temperature and h umidity for measurement
0~40℃，relative humidity under 85%
3.4 Temperature and humidity for keeping the meter
-10~50℃, relative humidity under 85%
-10-
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