Precautions for Zinc Oxide Arrester Tester (Rechargeable):
1. When taking the reference voltage from the PT secondary side, carefully check the wiring to avoid a short circuit on the PT secondary side.
2. Do not reverse the voltage signal input line and the current signal input line. If the current signal input line is connected to the PT secondary side or the test transformer measurement terminal, the instrument may be burned out.
3. Do not plug or unplug the measurement cables while input voltage and current are present, to avoid damaging the instrument.
4. If the Zinc Oxide Arrester Tester (Rechargeable) is damaged, do not open the case for repair yourself. If the instrument does not work properly, first check whether the power fuse is blown. Replace with a fuse of the same rating before continuing the experiment. If the problem is complex, please contact our company directly.
5. Do not place the Zinc Oxide Arrester Tester (Rechargeable) in humid or excessively high-temperature environments.
6. Notes during practical application
Since this instrument can measure three phases simultaneously and automatically compensate, it is very convenient to use. The inter-phase interference mentioned above is automatically calculated by the instrument during three-phase simultaneous measurement, so no manual calculation is required by the test personnel. In short, when using this instrument, simply connect the test leads and turn on the instrument to start testing.
