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Old 10-24-2013
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Default New toy: Cap tester

So, I had a Honeytek A6013L, but it only tested capacitance (first picture).

I then found this Peak Atlas ESR+ ESR70 that was small, cheap and supposedly tested capacitance and ESR.

Seems pretty cool.

And given the 342.2 reading vs. the 347 with no 1/10ths place, I'd say it might be more accurate too.
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Old 10-25-2013
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Considering the Honeytek can be found for under $20, not sure I would call the ESR70 "cheap". But I think the price can be justified if you have a need to test caps frequently.

That said, according to the Honeytek specs, it has a range down to 200pF while the ESR70 of just 1F. That may be a problem for some techs. On the other end, the ESR70 can test up to 22,000F, 10x more than the Honeytek.
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Old 10-25-2013
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Yeah. DealXtreme has sold the Honeytek at a pretty cheap price.

But when I said "cheap", I didn't mean compared to the Honeytek. I mean, given the fact that it can test capacitance and ESR. For that price, I think you usually get a kit and I wasn't in the mood for a kit.
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Old 10-25-2013
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Yeah, compared to other ESR testers, I agree the price is "cheap". Plus it has just two "big" buttons and auto-range sensing with no knobs to set. With my eyes at my age, that's a very good thing!
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Old 10-25-2013
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My only criticism about that Atlas meter is that it eats up the battery... and it's a stupid 12v battery that's expensive, if I remember correctly.

As for capacitor measurement.. don't kid yourself, the measurement is by no means more accurate than any multimeter with capacitance feature. In fact, it could be worse, depending on the quality of the multimeter.

Both values in the picture can very well be correct, the different numbers are just due to different method of measuring, different current values, voltages etc used to measure capacitance.

I would not buy Atlas ESR today, it's too expensive. You can now get a proper LCR meter capable of 10kHz ESR measurement for about 110$. For example:

http://www.ebay.com/itm/Handheld-LCR...item4614610a04

http://www.ebay.com/itm/Handheld-LCR...item4613d9aaf4

http://www.ebay.com/itm/DER-EE-DE-50...item20da276638

http://www.ebay.com/itm/New-High-Qua...item4176b13360

http://www.ebay.com/itm/DT-9935-High...item51b31ee550


Yeah, Atlas says 100kHz but the ESR measurement is not the "real esr", it's just an "approximation" of what the esr value would be at 100 kHz.
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Old 10-26-2013
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Hmm.... I like UNI-T's stuff. I have one of their handheld scopes that I bought last time I was in China. I think I should pick that LCR meter up and add it to my collection of UNI-T meters.
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