Quote:
Originally Posted by AiboPet
Is an "ESR" meter really even sufficient to test the "big" caps? I ask...because I have seen that in order to check a cap correctly, you have to be able to CHARGE it to it's rated voltage. No way the little ESR meters I see with (I assume a 9V battery) can do this?
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As a technician I wish that I could answer this question and would like to know myself what difference there is (if any) between an ESR meter and the capacitance mode of common DVOMs. There is no use to go buy an ESR if you can use your digital meter I would think. Even in college we had an ESR and nothing more, but I know that there is a tester that actually loads the capacitor. That is what I would think that any of us would want, especially since we are dealing with working voltages way above those found in modern equipment.