Great demonstration! I've seen lots os videos talking about input protection or the lack of it, but actually see it's effects is way better. Thank you for the video.

I just ordered UT61E but I do not have those voltages to kill my meter! Who works with this kind of voltages they should use a FLUKE professional!

Nice to know my brymen bm869 is adequately protected. Thanks for the great demo.

Great work! Thank you very much.

Thanks for the demonstration, it makes me change my mind, I gonna buy the Brymen 867/9. By the way, it's quite ironic you are killing an UNI-T DMM with an UNI-T equipment =D.

Each multimeter has threshold voltage and it is listed in manual. It is usually 1000Vdc and 600Vac. If you follow this limit, it won’t break.

brymen is top of the line meter and fluke competitors and UL listed cat iv certification, and cost 4 times more. Not a fair comparision. People buy 61e for electronik work for low voltages.

Hmmm, I posted this days before Dave posted anything about his tests. I am supposed to do nothing just in case Dave might do it too? I think not. I think you can ask Dave directly too and he will say even if I did post this after him that he would have no problem with it. He would encourage it as a matter of fact. And even if Dave was upset, too bad for him. It is my right to post what I want on youtube. If he doesn't want these things on his forums he can delete them but I know he never will.

Thank you for testing.

Great post, thumbs up and shared! Cheers, Martin.

Nice one!

The UT61E is fine. You would have NEVER fried it in real world use. I normally test voltages higher than most anyone else will be testing. 700VDC in Ampeg SVT tube amps. To imply that a static charge from a rug will fry it is complete bullshit. It is a 22000 count meter that will run off of 2.5 vdc supply, thus using all of a 9v battery. In over 20 years of testing high voltage circuits and mains panel voltages with numerous meters, I have never needed even 2500v protection. Go look at Mjlorton for a great review of the UT61E including it's inferior but still perfectly adequate input protection for a $50 meter. The BM869 is over 200 dollars which you also fail to mention. Like racing a new Cooper Mini against a new Ford GT500. Heavy mismatch. And realistically, once again, you would NEVER have fried the UT61E in real world use.

Putting in the MOVs will help of course. I would be more inclined to use something like 1000V rated MOVs though.

These are varistor protected inputs which clamps the input.

Don't think you are hearing anything real here. I had a problem with the audio that I didn't discover until the video was shot and I wasn't going to shoot it again. There is some pretty heavy handed audio processing in this video so ignore anything you think you hear.

Nice demo! In my UT61E I put two 600V MOV's over those 2 spark gaps' unpopulated footprints. Do you think that helps the input protection?

I can hear a bit of a wideband noise emitting from something when the 2.5kv and 5kv tests were performed on the brymen though. I'm very sure it's wideband noise

I have a UNI T UT 61E GS, made for German market and I can say that it is of much better quality than the one you showed. It has HRC input protection fuses, much beefier PTC and MOV-s , better shielding etc. All in all, a much better design, and scaled down to Cat III 300V.

Thanks for the comments.

I have to point out, that UT61E is a good 38€ meter for low voltage use. Comparing input protection against a 250€ meter is not really a fair "vs" comparison. For a mains voltage at Brymen price, I would just buy a Fluke 177 and keep UT61E for the counts.

Dave posted the same test 3 days ago, this has been online for 7 days.

What are the differences between the Brymen BM869 and the Brymen BM869S ?

Yes I posted a link to this video on the eevblog forums. What is your point? I made the video and I am a member of his forums.

Good morning my friend I purchased Dx.com came with defective non-alloy was detected that the relay Omron relay G5V-2-3V, 8-pin smoke. Buy Omron relayG5V-2-3V, 8 pin The UNI-T UT513A is with the relay burnt where and what I bu

I only use mine up to 30 volts. I shouldn't have any problems! Thank you for the video!

Oops. Sorry, first video, that I have seen was Dave's video. So, your video I have seen after the Dave's video. I checked the dates of the videos, and yes, I was wrong. Good luck!

I see, thanks.

give prices!!!!

Why have DMMs been tested at 5kV only? You should try 25kV. Senseless test...

Should go all the way up to 12,000 volts?? Why are you surprised it can make 5,000? cat IV circuits are rated at 1,000 volts. But can withstand 12,000 according to national instruments.. Here is the source. www.ni.com/white-paper/5019/en/

I HIT MY FLUKE 27 WITH 2700 VOLTS NO PROB

I know an Australian doesn't like UT multimeter at all

stika stika

At the beginning of this video you covered the same problem as shown by Dave. I think you shouldn't do this.

Are you now going to go complain to Dave not to copy LightAges? Maybe you should boycott Burger King for selling fast food burgers since McDonalds did it first. Don't stop there. Post stern warnings to all KZfaqrs who do teardowns, reviews, pranks, or share funny cat videos since they didn't do it first. One thing is for sure, if you were an IC, you sure wouldn't be a logic chip!

Uni t ut61e is just great. What a nonsense you apply 2500 volt while uni t hasnt guaranteed you anything like that. It is more aqqurate than 10x priced flukes.

too bad

This is a copy of Dave EEVBlog