I think it may be the worse display I have seen yet on a handheld meter.

@TMM I was about to write exactly what you said. Especially with today's available display technology. It makes me wonder if it couldn't be a defective unit perhaps ? I can't imagine a company designing an expensive DMM with such a poor quality display ? Moreover, holy smokes, there's a lot of ICs in this thing ! Hasn't Yokogawa ever heard of a FPGA ?

joe smith It could be poor zebra strips. Try cleaning each edge with IPA, and the PCB and LCD contact.

@@AlainHubert I believe it. Lol

A lot of those chips are probably analogue (opamps) and signal muxes / cmos logic. They are cheap, probably cheaper than an FPGA/CPLD/uC that could replace them. If you're designing a multimeter to sell for the next 20 years you also don't want to design in some flavour of the week IC that will be unobtainable in 5 years. That often results in one custom multimeter IC or well supported uC, plus a bunch of jellybean parts. The japanese also seem to be strongly opposed to using non-japanese produced ICs, so if they aren't willing to use a Chinese/Taiwanese multimeter-on-a-chip IC or spin their own custom IC you end up with a very dense design like this. I also suspect this design is already very outdated and even if they could consolidate a few chips it isn't worth the re-engineering expense.

I did eventually repair the meter. kzfaq.info/get/bejne/h596m62exMq4gIE.html Someone also asked about the settling times and I ended up comparing the results prior to damaging the meter and after repairs. The video was overlaid and you can see how it compares. kzfaq.info/get/bejne/fLSFkqponNi2gWQ.html

It's a pretty small channel and doesn't get a lot of traffic but you never know.

I have seen a few handheld meter's switches fail.

If you look carefully at my videos, I would guess there are at least a few mistakes on each of them. In this case, LP is a very common acronym I use but of course, you are correct that they use it for something other than this. The manual suggests it is for in-circuit measurements but they don't elaborate on it. Possibly there was a concern about damaging other sensitive components.

Hey, you finally get to see how the meter held up. You can also see why I didn't take you up on your offer. You would end up with a damaged meter. The meter is fairly old. Do you really think they would offer an improved version? I would think it was close to it's end of life.

@@joesmith-je3tq I also felt the model is going to end of life and felt the next model would come up, so I thought it would be a change to input your evaluation for the next model but I do not have any communication channel to the company at the moment. By the way, any kind of the damage by your robustness test would be only be a score or reward :)

Watched a few videos on it. It appears the analog display updates at the normal rate. Downloaded the manual for it. They don't seem to specify the update rate. I could not find where the meter was certified to pass the IEC standards. What features do you feel makes it unique enough to spend any time on?

It's a rebranded CEM. Extech also uses CEM. I've looked at a few of their products and have used one for the past several years. In my experience, the quality has been hit and miss. For a 6000 count meter, the $100 seems steep.

When Akira asked me about it, he had purchased one of each and reviewed them together. I want a meter to display the correct voltage when applied, especially once I get over 40V! As bad as the display is, that one problem is a deal breaker for me. kzfaq.info/get/bejne/bdtjqZuDkrKbXX0.html

@@joesmith-je3tq The display in my case is a big disappointment... as is the lag mentioned above. I do not have any incorrect voltage measurements above 40v. Might be a calibration issue. My meter came with a calibration certificate for all ranges from the factory and is spot on, just like my brymen 869 and fluke 87v

@@billywhizzySo you have one of these. If you watched this entire video, you have seen where the meter can't read below or above 40V. There wasn't anything magical about that number except from a risk standpoint. If you inject signals as I have shown, you claim yours read correctly? Or are you not understanding what I am injecting into the meter? I would be interested in knowing if your meter does have this same bug. I say bug because obviously this meter is cal.

@@joesmith-je3tq I'll try it when i get back home in auto ranging.

@@billywhizzy The ACmV will have a range where it works, then over ranges, then starts reading a false value. With the DCV I've ran into this problem with cheap meters. If you have problems replicating my results, just let me know what you have available for equipment and I can try and walk you through a simple test case.

I've looked at a Southwire which was a rebranded CEM. There was a CEM in the lineup. What's the part number?

kzfaq.info/get/bejne/Y995ftphvq3UeJ8.html kzfaq.info/get/bejne/Z910arRis5e8iWg.html

Yokogama? Is that one of those nuclear powered handhelds I have been reading about?? lol.

Without the schematics, I can't see wasting too much time attempting to track down the damaged component, let alone trying to sort out why the display is so poor.

Never mind, I watched the video.

Yea, it's a basic 6000 count meter for the electricians and techs. A bit out of its class.

I bought the 87V-E2 for $400 brand new in 2014 and it has been a good one. It is always spot on. Though my BM869s is my favorite meter. But it took some time before I trusted it with mains power. I use Probe Master probes with both of them.

@@robertcalkjr.8325 I have been looking at the long term drift of that low cost UT61E I show in the line up. As expected, it too has been very stable. I also have an old CEM meter that I have shown from time to time that is six years old. It's not in the best physical shape but still passes calibration. If it ever falls out, I will get a new meter.

joe smith I try to be careful with my tools and my meters still look brand new.

I doubt it for a few reasons. I had tried to contact Keysight and they never responded. Seeing that glass filled detent spring crack all four prongs after a few cycles. The meter I looked at just wasn't very robust.

Thank you for your response. I am also concerned about the robustness of these multimeters, but considering the fact of popularity these series I'm curious how they compare to BM869s. Greetings

There is a link in the description to all of the data I have collected from the meters. You will find every meter I have looked at.

I know you haven't tested them, I was wondering if you've ever even considered them for purchase.

@@johnalexander2349 No

Simple fix, close your eyes.

I never tried to contact them.

I've looked at a lot of Brymen products and they have all performed well. I have no reason to believe the 867s would be any different.

Agree. The Gossen was a higher cost, had BT and was not damaged. Then again, it has other problems that I would have NEVER guessed a Gossen branded meter would considering all the hype I have seen on them. But that's why I run these tests and make them available. You get to see first hand how they perform against other meters.

@@joesmith-je3tq Than you so much.

Yes, at least for me it's still the best suited meter.

@@joesmith-je3tq And is my go to meter as well!!

Красаучег!

Some people find pleasure in such simple things.