Used to measure the earth resistance in power substations, industries, distribution networks, transmission towers/electrical pylons.
Perform earth resistance measurements of simple or complex electrode systems, ground resistivity measurements (4-wire Wenner‘s principle), and spurious voltage measurements according to IEC 61557-5.
The equipment injects an electronically generated current in the soil. Both current and voltage developed are measured with high precision.
Design Features:
High spurious voltage rejection
0.1Ω resolution
Up to 20 kΩ resistance range
Auto-range
Automatic interference detection
Built-in memory and printer (optional)
Rechargeable battery
USB interface
Alphanumerical display
Direct reading of ground resistivity
Up to 50 m selectable distance
IP54 protection
CE mark
Operation Frequency:
During R measurement, operator should select the following test frequencies: 270 Hz ± 1 Hz or 1470 Hz ± 1 Hz
Voltmeter: In the voltmeter function, the equipment operates as a CA conventional voltmeter, making it possible to measure voltages generated by parasitic currents.
Measurement Ranges:
Resistance: 0 - 20 kΩ (autoranging)
Resistivity: 0 - 50 kΩm (autoranging)
Voltage: 0 - 60 V
Accuracy:
Resistance and Resistivity measurements:
R ≤ 2 kΩ: ± (2% of the measured value ± 2 digits)
R > 2 kΩ: ± (5% of the measured value ± 2 digits)
Voltage measurement: ± (3% of the measured value ± 2 digits)
Reading Resolution:
0.01 Ω in the resistance measurement
0.01Ωm in the resistivity measurement
0.1V in the voltage measurement
Output Current: The short-circuit current is limited to less than 3.5 mA RMS (according to IEC 61557-5 - 4.5)
Immunity to Spurious Voltage Interference: During the R measurement, it allows the presence of spurious voltage up to 7 V.
Please feel free to contact for detailed specifications, accessories, software and options.