Specifications; Range And Precision; Measurement Method; Using Temperature And Humidity - Sofamel IER-4000 Manual De Instrucciones

3. Specifications

Air temperature: 23 ± 5℃
Relative humidity: <75%
3.1. Range Specifications
Range
0 ~ 29.99Ω
30.0 ~ 99.9Ω
Earth Ground Resistance
100 ~ 999Ω
1.00k~4.00kΩ
Earth Voltage 0V~200V (50/60HZ)

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 humidity for measurement
0~40℃, relative humidity under 85%
3.4. Temperature and humidity for keeping the meter
-10~50℃, relative humidity under 85%
Specifications
Precision
±(2% rdg +6d)
±(3% rdg +3d)
±(3% rdg +3d)
±(3% rdg +3d)
±(1% rdg +5d)
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