Instructions for using the grounding resistance tester

1, when the sensitivity of the grounding resistance tester galvanometer is too high, the potential probe can be inserted into the shallow soil. When the sensitivity of the galvanometer is insufficient, water can be moistened along the potential probe and current probe. When the ground interference signal is strong, the speed of the hand generator can be appropriately changed to improve the anti-interference ability, so as to obtain a stable reading.

2, when the distance between the grounding pole of the grounding resistance tester E 'and the current probe C' is greater than 40m, the position of the potential probe P 'can be inserted in the middle line of E' C 'several meters away, the measurement error can be ignored. When the distance between the ground pole E 'and the current probe C' is less than 40m, the position of the potential probe P 'can be inserted in the middle of the line between E' and C '.

3, grounding resistance tester measurement, instrument to put a stable, shake the handle when the instrument to press firmly, do not cause strong artificial shaking, so that the wrong needle adjustment is not zero center line.

4. In order to ensure the reliability of the measurement results of the grounding resistance tester, the position of the two probes should be moved after the end of the measurement, and the retest should be carried out in another direction. Generally, the resistance values measured each time are not exactly the same. The average value of several measured values is taken as the final value.

5. Do not measure when there is lightning or the measured object is charged. Do not open test the grounding resistance tester. When not in use, short seal the terminal with bare wire.

6, grounding resistance tester to carry, use to be careful to put, avoid violent vibration.

7. After each measurement, the probe should be removed and wiped clean, and the wires should be organized for next use. Store the grounding resistance tester in a dry, dark, vibration-free place.