Grounding resistance tester usage precautions - Solutions - Huaqiang Electronic Network

Kaixin Micro Test

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Test Probe PH-5H

1. Make sure the grounding line is disconnected from the equipment being tested to ensure accurate measurement results.

2. Avoid testing after rain or when the soil is too wet, and also avoid conducting tests during drastic changes in weather, temperature, or pressure.

3. Ensure there are no stray currents or polarized soil near the test pole to prevent interference with readings.

4. Keep the probe away from large metal objects such as underground pipes, cables, or railways. The current electrode should be at least 10 meters away, and the voltage electrode should be at least 50 meters away. If the metal object is not connected to the grounding grid, you can reduce these distances by up to one-half or one-third.

5. Pay attention to where the current electrode is inserted into the ground to ensure it reaches a zero potential point.

6. Use high-quality insulated wires for connections to prevent electrical leakage.

7. Avoid conducting tests in areas with electrolytic substances or decaying materials, as they may cause false readings.

8. It's best to perform the test when the soil resistivity is high, such as during the dry season in early winter or summer.

9. Always check the accuracy of your testing instrument before and during the process.

10. If the galvanometer sensitivity is too high, try inserting the potential electrode shallower into the soil. If the sensitivity is low, you can moisten the area around the electrode by watering it to improve contact.

These guidelines are essential for ensuring safe and reliable measurements. Following them will help you achieve more precise results and avoid common errors that could affect the integrity of your tests.