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Leak test in polarized electrolytic capacitors

OLIWER777
hace 5 años
hace 5 años
hello community a small doubt with the ANALOGIC AGUJA multimeters. Are the tests to detect leaks in the electrolytic capacitors done without taking into account the polarity of the tips? because I do it in one direction the needle deflects from left to right very slowly, and in the other sense it stays still, And if I try it with the metal housing that is covered with plastic, it shouldn't measure anything? , or if the needle reflects and stays still, how is that interpreted, what is loaded or on the run? I understand that if they are electrolytic and polarized they can let direct current pass in one direction, from there it is understood because the needle stays still in one direction and should deflect from left to right and remain infinite if the capacitor is correct but I have my doubts
Javier Chavez C
hace 5 años
hace 5 años
The test with the multimeter can only detect that there is no leakage or a short circuit in the capacitor and even then, passing the test successfully, they may be devalued in their capacitance. ATTENTION: Performed the test, polarized the condenser with the probes in one direction, to do the test in the opposite direction you have to discharge the condenser to prevent the needle from sticking.
chester milton
hace 5 años
hace 5 años
Good evening Oliwer777. I can suggest you build one of these devices. They will be very useful. In the long run and it gives you an added value when it comes to testing the capacitors, two tests are better than one .... I leave you the links. I hope I have placed some light on your doubt. Greetings. https://www.comunidadelectronicos.com/proyectos/fugas.htm and https://www.comunidadelectronicos.com/proyectos/multi-prob.htm
OLIWER777
hace 5 años

thanks friend

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