This instrument has accurate measurement,Earth Resistance Tester easy operation,Earth Resistance Tester and small size. This ground resistance tester uses digital display, the reading is convenient and intuitive,Earth Resistance Tester and the reliability is extremely high. The machine has a broken wire alarm function (that is,Earth Resistance Tester open circuit alarm)

Technical parameters of the grounding resistance test meter: This product complies with the definition and general requirements of GB7676-98 direct-acting analog indicating electrical measuring instruments and accessories and the relevant regulations of the ZBN21012 grounding resistance meter professional standard.

The reference value of the meter is the range. The basic error of the instrument is expressed as a percentage of the reference value. The limit of the basic error is ±3% of the range.Earth Resistance Tester The working temperature of the instrument is -20～+50℃. The grounding resistance test meter changes the indicated value due to temperature change,Earth Resistance Tester converted to not more than the basic error for every 10℃ change.Earth Resistance Tester The humidity of the working environment of the instrument is 25% to 95%, which causes the change of the indicated value to be no greater than the basic error.Earth Resistance Tester The working position of the instrument is horizontal.

The instrument is inclined by 5° in any direction from the horizontal working position,Earth Resistance Tester which causes the indication value to change no more than 1/2 of the basic error. Under the influence of the external magnetic field strength of 0.4KA/m,Earth Resistance Tester the indicator will cause the indication value to change no more than 1.5% of the reference value. The insulation resistance between the instrument circuit and the casing is not less than 20MΩ. The voltage test of the instrument circuit and the enclosure is 500V.Earth Resistance Tester The protective performance of the shell of the instrument is splash-proof.

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