Precautions for using a DC resistance tester

useDC resistance testerPrecautions to be taken

1. If the charging progress bar and current display value remain stagnant for a long time, the measured winding resistance may exceed the current measurement range, and the current may not reach the preset value. At this point, you can press the 'Exit' button to return, select the current again, and try again.
2. When measuring a no-load tap changer, the discharge must be exited before switching the tap changer, and the tap changer can only be switched after the discharge indication is complete.
3. It is not allowed to dismantle the wiring during the measurement process.
4. When replacing the fuse and accessories, please use the same model as this instrument.