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EEVblog 1667 – Reverse Engineering the Brymen BM2257 Multimeter LowZ Mode
Reverse Engineering the Brymen BM2257 Multimeter front end to understand what changes have been made from the BM235 in the Low Z mode. DaveCAD time. Also some testing of the LowZ mode and how it works.
Forum: https://www.eevblog.com/forum/blog/eevblog-1667-reverse-engineering-the-brymen-bm2257-multimeter/
MOV datasheet: https://www.cnr.com.tw/cloudSpace/CNR_D.pdf
How to reverse engineer: https://www.youtube.com/watch?v=lJVrTV_BeGg
Multimeter Input Protection: https://www.youtube.com/watch?v=zUhnGp5vh60
View all episodes
By David L. Jones
4.6
7979 ratings
Reverse Engineering the Brymen BM2257 Multimeter front end to understand what changes have been made from the BM235 in the Low Z mode. DaveCAD time. Also some testing of the LowZ mode and how it works.
Forum: https://www.eevblog.com/forum/blog/eevblog-1667-reverse-engineering-the-brymen-bm2257-multimeter/
MOV datasheet: https://www.cnr.com.tw/cloudSpace/CNR_D.pdf
How to reverse engineer: https://www.youtube.com/watch?v=lJVrTV_BeGg
Multimeter Input Protection: https://www.youtube.com/watch?v=zUhnGp5vh60
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