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Máy đo điện trở nốt đất Phenix ER-25

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Máy đo điện trở nốt đất Phenix ER-25

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Máy đo điện trở nốt đất Phenix ER-25


General Specifications
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 VoLTMETER  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
0.01 Ωm in the resistivity measurement
0.1 V 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.
Earth Resistance of Auxiliary Rods In the R measurement it allows Raux up to 50 kΩ with error <30%.
Battery Status Chec The battery charge status is verified under normal use conditions.


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