Brymen rebranded bm257(s) - Page 1
Forum section: electronics / testgear

author: baastrup
author_rank: Contributor
timestamp: December 14, 2016, 07:08:37 pm
content: Dear all.I found that the Brymen bm257 was rebranded as:Greenlee dm-510Metrel MD 9016Elma bm257Does anyone own these meters and would make some tear down pictures?does they compare to bm257 or bn257s?

author: Muttley Snickers
author_rank: Unknown
timestamp: December 14, 2016, 07:30:43 pm
content: There is a ton of stuff on them if you were willing to either search the forum or use a gizmo called Google.Brymen BM-257 Teardown Pictures.https://www.flickr.com/photos/eevblog/sets/72157632878190064/

author: baastrup
author_rank: Contributor
timestamp: December 14, 2016, 07:40:20 pm
content: I have seen the youtubes from eevblog and joe smith etc.but i would like to know what version of brymen is inside Metrel MD 9016 is it brymen bm257 or bm257s?

author: Muttley Snickers
author_rank: Unknown
timestamp: December 14, 2016, 08:01:26 pm
content: Lightages will know so you are probably best to ask him, the Metrel MD 9016 manual on their site is dated 29-Mar-2012 and I'm pretty sure that the BM-257s is a more recent or updated model than that, search the forum for BM-257s.https://www.eevblog.com/forum/testgear/brymen-bm-257-pictures-and-mini-review/msg491562/#msg491562

author: Muttley Snickers
author_rank: Unknown
timestamp: December 14, 2016, 10:43:57 pm
content: As that link in the previous post points out, the noticeable difference appears to be the labelled current rating on the amps input as you can see from the pictures below, this along with the buttons are the only visual guide I have obtained to verify which series the Metrel MD-9016 is from, the Brymen BM-257 is rated at 8 amps as is the Metrel MD-9016 and the Greenlee DM-510A whereas the BM-257s and BM-252s are both rated at 10 amps, the specifications or versions may have changed since these pictures were submitted so it's probably best to check the current images from a particular brand or supplier to verify.In addition, the Metrel MD-9016 appears to be a BM-252 and the image below indicates that the record and crest buttons are missing when compared to the other meters in that series yet the MD-9016 manual clearly shows these buttons being present but no specific instruction or reference to their function, I would be concerned about not having the min-max function on this particular meter as well as not being true RMS.

author: baastrup
author_rank: Contributor
timestamp: December 16, 2016, 11:58:34 am
content: Thanks for the help. :-)I ended up buying bm257s fromhttps://eleshop.eu.What crocodile clips and "helping hands" can you guys recommend?

author: ZeTeX
author_rank: Frequent Contributor
timestamp: December 16, 2016, 12:03:37 pm
content: Quote from: baastrup on December 16, 2016, 11:58:34 amcrocodile for helping hands or crocodile for wires?if for helping hands, then just a nice beefy one that will hold your boards, and add some heatshrink around them so the sharp teeth will not leave a mark on the board or wire.if for wires, buy 50 for a couple of bucks on aliexpress or eBay and buy silicone wire from banggood and make your own, silicone alligator clips from eBay are expensive but 5meter of silicone wire from banggood cost like 2.5$, and 50 alligators from aliexpress cost like 2-3$, so you can make 10 nice high quality silicone alligators, each 0.5meter long for cheap.As for the helping hand itself, get just a eBay one with a magnifying glass, they will work fine.

author: baastrup
author_rank: Contributor
timestamp: December 16, 2016, 12:14:40 pm
content: QuoteNice answer :-)what cable AWG will you recommend?

author: EEVblog
author_rank: Unknown
timestamp: December 16, 2016, 12:17:42 pm
content: They would almost certainly be identical, only branding differences.The amount of time it takes for Brymen to spin a re-certify a new custom meter is not short.

author: ZeTeX
author_rank: Frequent Contributor
timestamp: December 16, 2016, 03:25:01 pm
content: Quote from: baastrup on December 16, 2016, 12:14:40 pm18AWG is nice.