Repeating the Brymen BM869s Transient Test

  Рет қаралды 6,903

joe smith

joe smith

6 жыл бұрын

Thanks to Brymen we were able to finally repeat the transient testing to try and determine what levels the meter could survive.
The original testing may be found here:
• Low cost handheld mete...
The data for the meters I have tested may be found here: docs.google.com/spreadsheets/...
Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1g...

Пікірлер: 56
@klassichd10
@klassichd10 6 жыл бұрын
Thanks a lot for your great tests, vids and docs!
@serviciobsas
@serviciobsas 6 жыл бұрын
Your videos are so interesting!!! I learn a lot.
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
I'm glad you are enjoying them.
@pa4tim
@pa4tim 6 жыл бұрын
I bought a 869s after your tests to use as a second daily use meter next to my trusty Agilent (and a bunch of 5,5 to 7,5 digit benchmeters). I have not regret that. It is a great meter. And thanks to your robustness tests it nice to know that I do not have to be afraid to kill it (that is, for what I do with it, I repair measurement and calibration gear for a living)
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
Good to hear it worked out for you. It's still my favorite. I wouldn't want a handheld meter that I had to treat with kid gloves.
@shanookflc
@shanookflc 6 жыл бұрын
Thanks Joe I agree good meter Brymen BM869. Whats in that bag!! Can't wait.
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
Hope to finish it up in another week.
@DouglasKryder
@DouglasKryder 6 жыл бұрын
you are sure having a positive influence on the Brymen. thanks for putting this one online.
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
They get no special treatment from me. If they hold up to my tests it's because they did their job, not from anything I have done. It's the only company who offered to send product knowing I was going to benchmark it to failure. I have to give them credit for that and the best communications I have come across.
@DouglasKryder
@DouglasKryder 6 жыл бұрын
i did not mean to suggest that you give any special treatment to Brymen. rather, the fact that you systematically expose the product to test conditions until something does break and make that available to the public has put Brymen into a feedback loop. as you say, it's up to them and they decided to participate and as a result the product hopefully ends up stronger. your efforts were a challenge they seem to have accepted. if the failure point ends up being stronger in the next test would that have been the case absent of these tests? i doubt it. that is the influence i was relating to. of course they still need to fix it so it remains to be seen.
@HillsWorkbench
@HillsWorkbench 6 жыл бұрын
Still think you need some kind of seal or logo, a badge (sticker) or symbol for those meters that pass. Could be a goldmine! Or at least a lot of free meters!
@elektrikahectorfernandezol5341
@elektrikahectorfernandezol5341 3 жыл бұрын
@@DouglasKryder Buena observación.
@fieldsofomagh
@fieldsofomagh 6 жыл бұрын
Good all round workhorse and accurate as well !!
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
That's the way I see it. Just a good general purpose meter.
@lunallenalobo
@lunallenalobo 6 жыл бұрын
I never tire of looking at the brymen's tests. I wish that below of anti spoiler device be an amperimetric clamp but this face makes me doubt xD Nice work!
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
Sorry, it's not a clamp. I don't really have a need for a clamp meter like you would use for electrical work which is why you don't see me show them. The UT210E was an exception because of the 1mA res. Then it was just begging for some changes.
@OneBiOzZ
@OneBiOzZ 6 жыл бұрын
After spending the past month binge watching your videos and seeing the BM869 on so many of them its painful to watch it get hurt :P
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
I damaged my first one shortly after receiving it. Brymen supplied this one for the sole purpose of running these tests.
@tomaszaburas648
@tomaszaburas648 4 жыл бұрын
Where could I get those jack protection caps you had on that brymen amp jacks? 2:25
@malgailany
@malgailany 6 жыл бұрын
Interesting video. I wonder how do you control the generator source impedance. is it limited to some component or it is designed to have a 2 Ohm impedance? Thanks
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
The impedance in wave shape are set by the output network. Yes, this is by design.
@GadgetReviewVideos
@GadgetReviewVideos 6 жыл бұрын
So when you going over the results, is that a range switch changing machine I hear in the background abusing a meter switching back and forth? Good to see it’s repeatable.
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
No. If I were life cycling a meter, there would be no reason to ask. They are pretty loud.
@ZakariahSH
@ZakariahSH 2 жыл бұрын
Brymen 869s for $250 is a bad deal for many reasons 1- unable to read LEDs. 2- resistance Quirk above one megohm even you touch the meter by hand. 3- diodes and capacitor readings are out. 4- taking so much for diodes reading. I don’t know what robust meter means. We don’t test these meters on 1000v or above. The good thing is perfect on voltage and current both AC and DC.
@joesmith-je3tq
@joesmith-je3tq 2 жыл бұрын
lol.
@chefbink61
@chefbink61 6 жыл бұрын
Man what a tease!!!! I know that Brymen under that bag cant be that ugly that you have to keep that bag on it!!!!
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
She's not a bad looking meter. Stay tuned.
@MrMJY
@MrMJY 6 жыл бұрын
mr. Joe smith, can i ask question ? surge/impulse generator dont give any kind of bad effect to another gears via electricity line at home ?
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
There really is no general answer. If you are asking specifically if the generators I designed and built cause any problems, no they do not. If you are asking if the equipment used for the IEC standards does, in my experience, yes.
@MrMJY
@MrMJY 6 жыл бұрын
joe smith Thanks for answering, Mr. Joe Smith.
@dancotton13
@dancotton13 6 ай бұрын
Wonder how a Sanwa PC-7000, which is a nearly similar to 869S, will survive such a test. In theory, the modular design of Sanwa supposed to improve the transients.
6 жыл бұрын
Hello, good day! Dear Joe, BM 869S multimeter best among those models that you tested. In Your tests is not found Holdpeak model HP890CN with many useful features. The price on Aliexpress 24$. It is really not reliable , you wouldn't call your attention? I assume it can be upgraded as you upgraded ZT102 (AN8002). I ask you to answer my question.
@firasgh871
@firasgh871 6 жыл бұрын
good
@DonDenaBrenna
@DonDenaBrenna 6 жыл бұрын
Can’t wait to see the new meter hidden under the bag!
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
lol. Well, I started working on it about a week ago and I am not even close. I am thinking maybe next weekend I may have things finished up. So stay tuned.
@DonDenaBrenna
@DonDenaBrenna 6 жыл бұрын
i have a bm829s and love it. Had to return my first one but this one I have had for 2 years i think. I abuse it and it holds up no problem! Very rugged
@SaverGC3
@SaverGC3 6 жыл бұрын
The Unknown Brymen! Shall it survive Joe's "Gong Show"?!
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
It's still alive.
@jodymontez693
@jodymontez693 4 жыл бұрын
Ok, then I guess my first multi meter is a bryman! Thanks
@billywhizzy
@billywhizzy 6 жыл бұрын
Love the Brymen 869s. I bought another high end DMM. A japanese Kyoritsu Kew1062. Their aftersales is excellent. I'm sure they will be happy to send you one for testing! The only drawbacks I do not like are the lcd display quality and the slow resistance refresh rate... other than that, it performs well and meets very high safety specs. No in-depth reviews exist on youtube yet. You could be the first!! www.kew-ltd.co.jp/en/products/detail/00976/
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
You claim it meets very high safety specs but going to the link you provided, I don't see where it was certified. What agencies certified it? Is it certified for both EMC as well as safety? Do you have the report numbers? Post what you have.
@billywhizzy
@billywhizzy 6 жыл бұрын
There is no report numbers on the manual. The manual is more detailed as follows: Complied Standards: IEC61010-1, IEC610-2-030, IEC61010-2-033, IEC61010-031 Environmental standards IEC50581 EMC standard: IEC61326-1 Class B Withstand voltage 6.88kv for 5 seconds That's all I have Joe
@billywhizzy
@billywhizzy 6 жыл бұрын
Check this out too.. there is a flow chart at the bottom. www.kew-ltd.co.jp/en/profile3/index.html
@joesmith-je3tq
@joesmith-je3tq 6 жыл бұрын
I don't care what the manual says, without it being certified I don't see how you can claim it meets very high safety specs. Putting a CE mark on your product and adding some verbiage to the manual is not at all the same thing as having it certified. You own the meter. Does it have any marks on it (besides the CE mark)? The second link shows nothing about the safety standards. It's good they at least mention the 61326 standard. It may survive some of my basic tests but then again, maybe not.
@billywhizzy
@billywhizzy 6 жыл бұрын
I get your point! They just state that it complies with the standards and probably do the testing in house. I'll send you pics of the interior build design.
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