Products > Test Equipment
Brymen BM789
EEVblog:
--- Quote from: J-R on September 24, 2023, 08:25:43 pm ---My point of pointing out the Fluke 373 "Assembled in China" was that those weren't made in Taiwan, which was previously presented as proof that they were made by Brymen. Just showing a box label is also not such proof.
So far we've had blatantly obvious proof that Brymen makes such and such products for another company, but proof for Brymen making things for Fluke is not at the same level.
--- End quote ---
Fluke making their own products in China is not new. It started with the infamous Fluke 19 backin the late 90's as an experiment in the asia-pacific market. And now Fluke make a bunch of lower end and also Asia-specific products in China. I believe it is their own plant, or at least under contract to them. These are all designed by Fluke.
I also have seen zero evidence that Bryman make anything for Fluke.
And AFAIK Brymen do not make anything in China, they are all made in Taiwan.
But yes, some Amprobes are Brymen designs.
I think what's most likely here is that Fluke have independent Chinese and Tawainese assembly houses. After all, if you are designing the meter yourself as Fluke do, then there is no reason to get an established DMM design house to make it for you, can you can use any assembly house. The benefit of going to Brymen is that they have a ready designed and tested product for you.
But maybe Brymen do make it because they already have a relationship through Amprobe?
But a 373 teardown is here. Fluke branded PCB, and looks very Flukey to me. The input ceramic resistor appears to be a Fluke. So appears to be a complete Fluke in-house design.
bdunham7:
--- Quote from: EEVblog on September 24, 2023, 10:58:54 pm ---I also have seen zero evidence that Bryman make anything for Fluke.
--- End quote ---
Brymen just handles the printing, boxing and shipping for them?
https://www.eevblog.com/forum/repair/dead-brymen-bm869s/msg3606703/#msg3606703
--- Quote ---And AFAIK Brymen do not make anything in China, they are all made in Taiwan.
I think what's most likely here is that Fluke have independent Chinese and Tawainese assembly houses. After all, if you are designing the meter yourself as Fluke do, then there is no reason to get an established DMM design house to make it for you, can you can use any assembly house. The benefit of going to Brymen is that they have a ready designed and tested product for you.
--- End quote ---
From the website brymen.eu:
"With headquarters located in Taiwan, BRYMEN has subsidiaries in China, America, Japan, Korea and Malaysia; its products are sold to more than 80 countries worldwide."
IDK what that means, but perhaps we don't know all the details behind the Fluke/Brymen interaction. Perhaps they have branched out a bit into custom assembly. Using Brymen would have at least a small advantage in that they are already familiar with the build, testing and quality control of test equipment. AFAIK, Brymen is a privately owned company and finding internal information is impossible, at least for me. Maybe you can go visit them and go rogue on special mission. :)
EEVblog:
--- Quote from: bdunham7 on September 24, 2023, 11:27:54 pm ---
--- Quote from: EEVblog on September 24, 2023, 10:58:54 pm ---I also have seen zero evidence that Bryman make anything for Fluke.
--- End quote ---
Brymen just handles the printing, boxing and shipping for them?
--- End quote ---
Maybe. But as I said, design looks to be 100% Fluke.
And what is a 14+ and 15?
bdunham7:
--- Quote from: EEVblog on September 25, 2023, 01:25:31 am ---Maybe. But as I said, design looks to be 100% Fluke.
And what is a 14+ and 15?
--- End quote ---
Absolutely 100% Fluke design and I'd be pretty shocked if it weren't. This works for both parties--if Brymen is contract-locked to someone like Greenlee for Brymen models, presumably that wouldn't apply to a Fluke-designed and exclusive model.
The 14+ and other designations are Amprobe Current Clamp models that don't match any current Brymen models that I could see.
https://www.amprobe.com/product/acd-14-plus/
Neutrion:
--- Quote from: AVGresponding on September 05, 2023, 04:50:36 am ---
--- Quote from: EEVblog on September 03, 2023, 11:12:43 pm ---
--- Quote from: AVGresponding on September 03, 2023, 03:09:41 pm ---Has anyone dug into why their custom silicon suffers these failures? Firmware corruption (I feel if it were this there'd be a lot more cases)? Ionic contamination of the die? Contamination or damage of the die during manufacture? Charge carrier migration or accumulation? It might be nice to have a failed one decapped/X-rayed, to see if there's anything obvious.
--- End quote ---
We don't know.
BTW, the Brymen processor is not custom, it's a known brand. I'm under NDA so I can't tell you which one.
--- End quote ---
That just makes me want to see one decapped even more, to search for clues! ;D
--- End quote ---
But was it the main processor which was failing or the frontend? As far as guessing went, the frontend was supposedly the _Hycon HY3131 or some close modification of it.
I was also mentionig it a few months ago, that it would be unique to see some troubleshooting within a microchip if Dave could arrange it with some labs.
Any clue or guess what chip technology (nm size) these Hycon chips use?
And although off here but is there any statistics anywhere aviable about reliability of microcontrollers? Regarding to manufacturers, nod sizes, etc?
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