Products > Test Equipment
New ESR meter - MESR-100 V2 by 'Jingyan'
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Fraser:
Thanks Hgg and  Salas.

I have not had a moment to do anything with mine yet and I need to find some suspect or faulty capacitors for it to see how it performs. I have a PC motherboard in my lab that definitely has some dead capacitors as they have bulged., I will use that first and will also test some 30 year old 'new old stock electrolytics that I have to see how the readings stack up against my Mastech 5803 unit. I just need some spare time.
Salas:
Or low voltage and low capacitance unused ones from a reputable manufacturer with published 100KHZ impedance values to compare. V1 was spot on for Panasonic FC 47uF cap I tested against its published spec. But now its not here anymore. Counter Murphy happened. :-+ It came with a front panel scratch I had fed back originally and never saw the reply that I may send it back till yesterday I put some Ebay feedback about some MOSFETS. It will be exchanged for V2 and its traveling right now. :-DMM
Fraser:
Salas,

That is good news  :)

I do have some decent quality Panasonic capacitors against which to test it. they are destined for one of my spectrum analysers as part of a routine capacitor refresh but will not happen any time soon.

I will advise when I have done the tests. Maybe this weekend, but I have to replace the exhaust on my Wife's Nissan X-Trail so that may eat up my spare time  :(
Salas:
The MIB instruments people proved quite reliable and the substitution V2 came in today. It gives out this kind of open test signal. If loaded with a capacitor also and measuring ESR a very faint triangle like dance about thing remains. It took heavy averaging and 500uV scale to bring it out well on the scope. Now, Aurora how do I pull away the hard plastic bail to change batteries without breaking its hinges? I don't have any good ESR capable LCR meter to compare results also, so we wait for your evaluation. ;)
Fraser:
I used a long shaft screwdriver and gently bent the bail enough to allow access to the screw. Nothing was damaged but its a real faff and a design error. I think there is more risk trying to remove the bale so I advise against that.
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