Author Topic: Measuring Electrolytic Caps  (Read 1145 times)

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Offline carboncomp

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Measuring Electrolytic Caps
« on: January 30, 2014, 05:07:25 pm »
Iv got a relatively new Extech  330 multimeter (got it 3 months ago) but It just wont measure electrolytic above 47uF  :-//

The datasheet says the range is 0.001nF to 200?F so guess its faulty or I'm doing something very stupid!

Any troubleshooting suggestions?
 

Offline Rerouter

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Re: Measuring Electrolytic Caps
« Reply #1 on: January 30, 2014, 05:25:21 pm »
that ? is because there blog software doesn't recognize the micro symbol, so its upper range is 200uF,

as for why it cannot handle above 47uF, it could be esr or a leakage current making it think its higher,
 

Offline sleemanj

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Re: Measuring Electrolytic Caps
« Reply #2 on: January 30, 2014, 05:49:06 pm »
Iv got a relatively new Extech  330 multimeter (got it 3 months ago) but It just wont measure electrolytic above 47uF  :-//

The datasheet says the range is 0.001nF to 200?F so guess its faulty or I'm doing something very stupid!

Any troubleshooting suggestions?

How long are you giving it to perform the measurement.  Measurement can take quite a while as caps get bigger. 
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Offline carboncomp

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Re: Measuring Electrolytic Caps
« Reply #3 on: January 30, 2014, 11:44:21 pm »
I'm leaving it a good whiles 20+ seconds (using both clips and probes) but it will just show 0.000uF or sometimes around 20nF on brand new 47+uf caps, and have even tried shorting out the caps beforehand.....think its time to return the bloody thing!
 


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