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LCR meter failure
LCR meter failure
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Old 26th February 2011, 03:45 PM   #1
sonata149 is offline sonata149  Malta
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Location: Malta, Europe
Default LCR meter failure

I was using one of these (admittedly cheap, blue) LCR meters when it suddenly went off I cant get it working again. The problem seems to be caused by the capacitor not being fully discharged because I saw a small spark when I connected the second test lead to the cap terminal.

The little instructions/notes there say that it is protected but I didn't see any fuse or anything of this sort. Do you think it's Kaput and throw it away.

Sorry if what I brought up may seem trivial compared to some of the high quality / high resolution meters I saw mentioned in this forum but it was a handy tool to get a rough check of capacitors' strength and value.

Thanks for your help.
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Old 26th February 2011, 04:20 PM   #2
jtwrace is offline jtwrace  United States
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Location: NC
The same happened to me three weeks ago. I threw it away and bought an Extech 380193 - Passive Component LCR Meter
"Science is not a democracy"- Earl Geddes, Ph.D.
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Old 10th March 2011, 07:59 AM   #3
rmyauck is offline rmyauck  Canada
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Join Date: Apr 2009
It does say on the Anatech site that an undisharged cap will kill it. I think you can buy the chip which probably took the hit for low $ along with any other part for low $ too. I found info googling around.

I didn't buy one but am thinking about the ESR70 @ $132 or so. which is protected and can measure capacitance. They also have an analog metered one one the site with optional protection for just over $200. The say it measures ESR most accurately.

On the audiokarma site I found a couple of diy projects from about 5 yrs ago to build one very inexpensively. They both used analog meters and one was protected.

Last edited by rmyauck; 10th March 2011 at 08:01 AM.
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