Usage of multimeter and matters needing attention:
1. When using a multimeter, we must pay attention to the gear position first, distinguish the resistance file, AC or DC file, voltage or current file, etc.
2. After determining the gear position, if there is no concept of the size to be measured, first detect from the highest gear position;
3. After use, adjust the gear to the high level of AC voltage.
Use method and precautions of dial meter:
1. Before using the dial, ensure that there is no voltage on the measured element;
2, before use, the marker short circuit test and open circuit test to ensure that the instrument is easy to use;
3, after the measurement to the measured component full discharge;
4. Two people should be used to test the insulation of high voltage equipment with a dial.