I've found that the DER DE-5000 LCR meter is a much better choice than the GME in that price range. I've had great success with it, and its in-circuit ESR performance is quite good. A recommended improvement for the DER is to make your own Kelvin test clips for the unit. A good test for it was a subwoofer amp that had 12 out of its 16 electrolytics gone to the dark side. All 12 read bad both in-circuit and out-of-circuit. Accurate in-circuit ESR testing is extremely useful. The unit is also excellent for testing inductors, and of course resistors. One MUST DISCHARGE THE CAP first. Beyond safety for the unit, a small charge left on a cap can confuse an ESR/C meter.
@@StuartPatterson Your certainly welcome, and thanks for this video. Just wanted to add a note that there are a few videos on YT about how to fashion your own Kelvin clips for the DE-5000. It's worth the effort and additional expense for the additional accuracy and convenience.
Great tutorial. You can also test the resistance and microhenries of the inductors with the esr meter. The reactance formula is 2𝛑FL. That would be 2 x 3.14i x frequency of esr meter x 100 (uH) Just plug it in. R=0.628 X L(uH) L(uH)=R(ohms)/0.628
Great video - question. How did you fix your MESR-100 tester when you tested a charged cap? I just did it and it's not working now. Any help would be appreciated. Thanks.
I replaced a diode that had blown. Let me know if you can't figure out which one and I will open my meter and look, maybe it will jog my memory. I think it was pretty obvious in my case.
I've found that the DER DE-5000 LCR meter is a much better choice than the GME in that price range. I've had great success with it, and its in-circuit ESR performance is quite good. A recommended improvement for the DER is to make your own Kelvin test clips for the unit.
A good test for it was a subwoofer amp that had 12 out of its 16 electrolytics gone to the dark side. All 12 read bad both in-circuit and out-of-circuit. Accurate in-circuit ESR testing is extremely useful.
The unit is also excellent for testing inductors, and of course resistors.
One MUST DISCHARGE THE CAP first. Beyond safety for the unit, a small charge left on a cap can confuse an ESR/C meter.
Thanks! I need to checkout the DE-5000. The price is certainly good!
@@StuartPatterson Your certainly welcome, and thanks for this video.
Just wanted to add a note that there are a few videos on YT about how to fashion your own Kelvin clips for the DE-5000. It's worth the effort and additional expense for the additional accuracy and convenience.
@@matambale OK, I will certainly check them out!
Thanks for review. Very good 👍❤
Thanks for watching!
Great tutorial. You can also test the resistance and microhenries of the inductors with the esr meter. The reactance formula is 2𝛑FL. That would be 2 x 3.14i x frequency of esr meter x 100 (uH) Just plug it in.
R=0.628 X L(uH)
L(uH)=R(ohms)/0.628
Thanks!
Useful demonstration.
Thank you!
Great video - question. How did you fix your MESR-100 tester when you tested a charged cap? I just did it and it's not working now. Any help would be appreciated. Thanks.
I replaced a diode that had blown. Let me know if you can't figure out which one and I will open my meter and look, maybe it will jog my memory. I think it was pretty obvious in my case.