1. It is a precision instrument, do not open it at will.
2. If it is not used for a long time, the battery of the collector should be removed.
3. Replace the battery at least once a year.
4. It should be stored in a humid, high temperature and dusty environment.
5. The withstand voltage test should be done before the insulating rod is used.
6. The insulation rod is subjected to a withstand voltage test every year.
The wireless digital voice phase checker is used for phase verification and phase sequence verification of power lines and substations. , in line with (EMC) standard requirements, to adapt to various electromagnetic field interference occasions. The measured high voltage phase signal is taken out by the collector, and directly transmitted after processing. Received by the nuclear phase instrument and compared the phase, the results after the nuclear phase are qualitative. Because the instrument is wirelessly transmitted, it is truly safe, reliable, fast and accurate, and is suitable for various nuclear phase occasions.