Digital grounding resistance meter structure features:

The digital grounding resistance meter adopts a high-strength aluminum alloy as a casing. In order to prevent power frequency and radio frequency interference, a phase-locked loop synchronous tracking detection method is used on the circuit and a switched capacitor filter is provided, so that the instrument has good anti-interference capability.

Digital grounding resistance meter measurement range:

Resistance: 0 to 2Ω (10mA), 2 to 20Ω (10mA), 20 to 200Ω (1mA)

Voltage: AC0～20V

Measurement accuracy and resolution accuracy: 0~0.2Ω≤±3%±1d

0.2Ω～200Ω≤±1.5%±1d

1～20V≤±3%±1d

Resolution: 0.001Ω, 0.01Ω, 0.1Ω, 0.01V

Auxiliary Earth Resistance and Ground Voltage Caused by Measurement Error (1) Allowable Auxiliary Earth Resistance RC (between C1 and C2) <1.8KΩ

RP (between P1 and P2) <40KΩ

Error ≤±5%

(2) Allowable ground voltage ≤ 5V (effective rms frequency) error ≤ ± 5%

Power and power consumption maximum power loss ≤ 2W

DC: 8×1.5V (AA, R6) Battery AC: 220V/50Hz

Volume: 220×200×105mm

Weight: ≤1.4kg

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