testing electrolytic capacitors using a multimeter?

mrsmith · 22nd October 2005, 08:04 AM

I am wondering if there is a technique for testing circuit board mounted electrolytic capacitors in (or out of circuit if nessecary) using a multimeter?

I may have a few bad caps. somewhere on my board and the thought of de-soldering all of them .

anyone please advize? best way to test them with a dmm?

Thanks

BoomBoomBoy · 22nd October 2005, 05:52 PM

My Fluke model 29 has a capacitance testing function. I would test them out of circuit though.

anatech · 22nd October 2005, 06:00 PM

Hi,
Answered your post on the same subject here

The included cap function on multimeters gives you an approximate capacitance value and may catch some problems. But not the most common ones. Just change them since you have them out.

-Chris

pinkmouse · 22nd October 2005, 06:10 PM

So I'll close this one.

22nd October 2005, 08:04 AM	#1
mrsmith diyAudio Member Join Date: Oct 2005	testing electrolytic capacitors using a multimeter? I am wondering if there is a technique for testing circuit board mounted electrolytic capacitors in (or out of circuit if nessecary) using a multimeter? I may have a few bad caps. somewhere on my board and the thought of de-soldering all of them . anyone please advize? best way to test them with a dmm? Thanks

22nd October 2005, 06:10 PM	#4
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	So I'll close this one. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

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22nd October 2005, 05:52 PM	#2
BoomBoomBoy diyAudio Member Join Date: Oct 2005	My Fluke model 29 has a capacitance testing function. I would test them out of circuit though.

22nd October 2005, 06:00 PM	#3
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi, Answered your post on the same subject here The included cap function on multimeters gives you an approximate capacitance value and may catch some problems. But not the most common ones. Just change them since you have them out. -Chris