Measurement method of rectifier diode — SUNMATE
Measurement method of rectifier diode
Mechanical meter: set the multimeter at 1K gear, the red pen is connected to the positive pole of the diode, the black pen is connected to the negative pole of the diode, and the resistance is infinite. On the contrary, at about 10K, the diode is good. Otherwise, the diode is poor.
Electronic watch: set the gear with diode symbol. The red pen is connected to the positive pole of the diode and the black pen is connected to the negative pole of the diode. It displays about 0.7 and there is a beep. On the contrary, there is no change. Is good. If both the forward and reverse directions are called, the diode breaks down