View Full Version : Why doesn't Fieldpiece or Fluke have a ESR function.
06-19-2011, 09:45 AM
I've read a lot about the ESR meters being the true way to check a capacitor's integrity. I've even emailed Fluke with no response. My question is, why doesn't the major brands offer this in a meter? I believe the only major difference in the signal output is being a/c rather than d/c for the cap testing equivalent series resistance.
06-19-2011, 12:16 PM
An ESR meter uses a pulsed signal while your DMM is capable only of a straight DC power signal.
I agree, would be cool if they could incorporate that into a DMM. Russel?
06-26-2011, 09:29 PM
Why doesn't Fieldpiece or Fluke have a ESR function..
I don't know, consider one of these.
There are several nice ones out there. But this one seemed
to offer the most in the way of features and specs for the money.
Below I attached a couple of pics. One showing me
testing a known good 189uf cap with low ESR level.
The other is a 105uf cap that has low capacitance
value and very high ESR.
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