Talk about the common problems of high-voltage electroscope

Everyone knows that this high-voltage electroscope is composed of a signal and a high-voltage insulated rod, so that he has a very good self-test performance, and there are automatic type switches. He can work well in high voltage and strong electric fields. What problems do he have when we use high-voltage electroscopes? Let us give a simple explanation to all of us by using safe electrical equipment.

After pressing down the test button of the high-voltage electroscope, his hands will have a very quiet alarm. After inspection, we find that his triode performance is not very good, so we have to replace it. His pressure ceramics and light emitting diodes did not sound the alarm. We can infer that the flat rubber sleeve of the previous stage was a soft cable. We found that the test was found to be normal after a multimeter inspection. It was finally determined that the HD14011BP was broken.

If there is a flash on the light emitting diode of a watch alarm on a high-voltage electroscope in a full-power device, and there is an alarm sound in a non-pressurized ceramic, then I have to look at whether or not the circuit board is connected. Replace the film just fine. If the electroscope is not able to perform an alarm when he conducts an inspection, it indicates that there is a problem with his source-triggered control circuit in the pre-sensing detection.