Sofamel 635340, User Manual

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3. Specifications
Air temperature: 23 ± 5℃
Relative humidity: <75%
3.1. Range Specifications
Range Precision
0 ~ 29.99Ω ±(2% rdg +6d)
30.0 ~ 99.9Ω ±(3% rdg +3d)
100 ~ 999Ω ±(3% rdg +3d)
1.00k~4.00kΩ ±(3% rdg +3d)
Earth Voltage 0V~200V (50/60HZ) ±(1% rdg +5d)
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℃
, r
elative humidity under 85%
3.4. Temperature and humidity for keeping the meter
-10~50℃, relative humidity under 85%
Specifications
Earth Ground Resistance