MESR-100 ESR Meter Review and Teardown

MESR-100 ESR Meter Review and Teardown
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[@castlecodersltd]

8 years later I've come across this after buying one yesterday. Very helpful, thank you

[@trainliker100]

I am an electronics type and fully understand the purpose for capacitors, but actually got one for a model railroad purpose. The high resolution ohmmeter is terrific for finding short circuits. There can be some track short somewhere, you disconnect power, and then start measuring at different locations across the rails. The lowest reading you find will be at, or near, where the short is. Many multimeters have only 0.1 ohm resolution which isn't really enough. A Fluke 87V in "high resolution mode" or and OWON B31T+ multimeter has 0.01 resolution which can sort of do it, but the 0.001 resolution of the ESR meter works great.

[@mikebiermans4273]

Thanks for making this video, especially for showing the actual signal on the scope. I wish more people would do that. Nothing can compare to seeing the actual signal. You have a new subscriber. Thanks

[@rickoshay6554]

Yeah, you just can't beat a good look at a classic squine wave.

[@GigaPlaya]

I think it's a square wave that's been turned in to a sawtooth wave.

[@cirogiardino2259]

@@rickoshay6554 il q

[@WV591]

best demo yet. nice going with scope. thx. there's another demo on tube comparing this to few others and confirming it's accuracy.TU

[@jugnu361]

it works well in circuit too.....confirmed..

[@saturnus3]

This video was decisive for me to order the meter. Thank you for making this video!

[@saturnus3]

+StealthyMonk I bought this one: www.dx.com/p/mesr-100-0-01-100r-auto-range-esr-capacitor-low-ohm-meter-300030 Have used it in combination with a Fluke 179 to double check old capacitors. It is accurate enough to help me with repairing electronic devices. But I am not a professionel, keep that in mind.

[@saturnus3]

+StealthyMonk Success with your ESR! The link I just sent you was sold out, but I'm sure there are plenty for sale in China!!! ;-)

[@dmcbohol]

If they can release a V3 which can display the value of the capacitor too, that would be awesome

[@Ghost572]

maybe we could make or buy a capacitor meter and just modify the case to have it inside it.

[@fritzj6803]

Great tutorial. You can also test the resistance or microhenries of the inductors with the esr meter. The reactance formula is 2𝛑FL. That would be 2 x 3.14 x frequency of esr meter which is 100 kHz x 100 (uH) Just plug it in to get the reading. R=0.628 X L(uH) L(uH)=R(ohms)/0.628

[@blueeyesvideos]

You should indicate this is version 2, in the description and title. I bought v 1 according to this review .

[@xmenken1]

Very detailed explanation! There is a disadvantage which I dun like. Every time the tester is turned off and on, you have to short both terminals together to do zeroing again and again. Otherwise, you cannot get a correct result.

[@rasplatakoebi1]

Nice review. But the question is, why you connecting almost every capacitor to the meter with wrong polarity, plus and min?

[@roimark358]

he doesnt know to use it yet

[@andymouse]

Its AC but you know that by now

[@andymouse]

@@roimark358 Its AC but you know that by now

[@irishguy200007]

The zeroing is a great idea. It would be great if every multimeter had this feature.

[@skilledhiko329]

following your good constructive video, i will buy this meter instead of blue esr meter. thank you abbtech.

[@Elecifun]

Also what about the Ref at 25V, not all these caps 25V, do you need the table at the bottom to decide good or bad?

[@feboober]

Yeah.

[@playstation2bigs]

Can you test a capacitor in circuit board using that tester ?

[@dudeguy7347]

ya

[@Stelios.Posantzis]

16:45 It looks like it fits perfectly on the reverse side for which it might have been intended. However, there are no markings of the polarity on the reverse side which might be the reason why the did not solder it there or perhaps they did not wan to flip the board while populating it with parts to avoid delays. The latter would be a weird reason though as there are a couple of wires which are soldered on the reverse, so they do have to flip it. Therefore my guess it it's probably the first reason: somebody forgot to put the polarity on the reverse and thus they have to solder it on that side to avoid any chance of error.

[@youtuuba]

Hmmmm.... - "Nice sine wave, not a stepped wave"....it is a rounded square wave, NOT even remotely a sine wave. - The helpful info on the screen, regarding whether a measured cap is good or not, is applicable only to 25V capacitors. If the tested cap is NOT 25V, then the user must consult the little chart. Since many of the demo-tested caps in this video were not 25V, then the narration that the message meant that they were good is erroneous. This is a nice little ESR meter, but there are caveats: - It has poor drive capacity, and with capacitors having certain characteristics, the output waveform nearly collapses and ESR readings begin to be wildly inaccurate, yet the meter in no way detects this situation to warn the user.....SOMETIMES it WILL give an error message, but that seems unreliable. - It only tests at 100kHz, which is OK for capacitors designed and intended for use in switching power supplies and such, but much too high for many capacitors, leading to inaccurate readings and good/bad diagnoses. There are better ESR meters out there, usually for less cost than this one, and some of those also test DCR.

[@erguy6319]

Nice review. Thanks. Hope the maker saw your video and will improve the case quality. They should realize that do not put good wine in a cheap bottle.

[@MrDoneboy]

Bodge...Should be attributed to Dave Jones, in perpetuity!

[@Rafa-xl4uf]

Version bulid in 2022 has redesigned pcb with STM32G030C8T6 not PIC18F24K20.

[@KameraShy]

Would have been interesting to let it sit on and see if it auto shut off at 10 hours or actually 10 minutes with the manual being wrong. Yes, Virginia, manuals are sometimes wrong.

[@nickkendall3764]

Hello could u please help me would it he ok yo use this meter just for reading resistance alone in the low ohm ranges I'm looking for a meter that's accurate and cheep as accurate as it gets for cheep equipment anyway. I want to read atomizer resistances between and 0.08ohm upwards to 2.0 ohms

[@feboober]

Why would you not use a multi meter set in resistance mode (Ohms) ?

[@maxwarfield6699]

Complete NOOB here. So this device produces/sends an AC signal, Into the capacitor? Or is it a Dc signal? Also, if it's a AC signal, then that mean that there is an inverter, inside this device, right? Please let me know. I'm trying to learn more about electronics. Keep making videos and thank you kindly

[@frankkoslowski6917]

Putting the thumb on the USB jack on the side of the meter won't explain its proper use. Will it?

[@dudeguy7347]

Yes.

[@palmtree5544]

you didn't try the most important test. In circuit.

[@airgliderz]

Mine works great for in circuit testing, why I bought it, found many bad caps with it, love it, use it all the time, and very usefull. Leads are to short but who care at this price. Accurate as Fluke and reads lower resistance far better at far less cost

[@dreadwings3]

@@airgliderz So it is a show!

[@roimark358]

That meter can beat expensive capacitance meter, accuracy.

[@AJTHIND]

Box is for MESR 6013 and mesr 100 what's the diff other than yellow fave and black face side

[@alanparekh9614]

Not really sure about that one.

[@AJTHIND]

Alan Parekh does this do in circuit give you a onscreen good bad indicator

[@denisfrancoeur5971]

It is not MESR 6013 but M6013 and M6013 do not read ESR but it is only a Capacitor. Meter M6013 can read 0.01pF to 470000uF

[@endongsiruba2989]

What about the fluke ESR meter, pls. Make a review..

[@mikeadams110]

Totally outstanding job and review. Well done and extremely helpful!

[@ranbymonkeys2384]

I noticed the board says v1.4

[@dfgman5988]

Привет из России.Очень хороший обзор.

[@Electricworld-1]

I give you a thumbs up to put you on 100 Thumbs Up Get It, I got mine in the post today.

[@drbonkie]

cool review.

[@KTFG]

Cool

[@DeeegerD]

Never did mention the USB port function?

[@abbtech]

+Digger D Hi, It is just for power. You can see it in the manual at 11:20.

[@DeeegerD]

Yeah, saw that on another video, thanks.

[@kellykeys6092]

What if you want to measure a capacitor that falls outside the given ESR table? For example, I have a 400volt 80 Farad capacitor in circuit. How would I test that one to make sure it is good using the MESR-100? Or, can it be done at all using this meter?

[@xmenken1]

Kelly Keys , No, you cannot do that with this tester because it only allows capacitors range from 10V to 250V and 10uF to 10,000uF only.

[@kellykeys6092]

Yeah, it was my bad for not looking closer at the schematic first where, in small writing in the notes section, it stated that all caps were in uF unless otherwise noted. So, even though the 3 Mallory caps said 80 on them, they were uF. A Do'h! moment. Thanks!

[@xmenken1]

Kelly Keys , I 'm pointing out that this meter won't test the capacitor which you mentioned. I do not mean to say that it's someone's fault. It is normal to ask questions about this meter before you plan to buy it.

[@nor4277]

You are supposed to discharge the caps before testing?

[@CoreyDeWalt]

Yes

[@clems6989]

It won't hold zero. Wiggle leads and reading changes. Have to re-zero everytume you move leads. Its Junk !

[@nonsuch]

Red + Black -

[@bgregg55]

IMO, it's overpriced & the leads are much too short. Might be worth 20 bucks at most.

[@andymouse]

Shorter the leads the better thats why it has openings in it place the cap directly in.

[@scheblanovjean]

Спасибо за внутренности! Реле нет.

[@HaxepMEHTOB]

Херня а не прибор, внутреннее сопротивление показывает а ёмкость нет!

[@KeepOnTesting]

ʁɔvʎнdǝвǝdǝu ʞин It is an ESR meter tovarisch..it does not measure Capacitance. Этот прибор и не должен измерять емкость так как он предназначен для измерения сопротивлёния

[@3-01fnsc]

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