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Electronics => Repair => Topic started by: TaylorD93 on April 07, 2023, 09:24:29 pm

Title: Megger/AVO BM223 IR & Continuity Tester
Post by: TaylorD93 on April 07, 2023, 09:24:29 pm

Hi Everyone,

Bit of a shot in the dark, my relatively old BM223 Insulation Resistance and Continuity tester has failed. It works on the 1kV, 500V and 250V IR ranges, but when i do a continuity test, there is no output current, it always reads >99.9 Ohms.

Ive contacted Megger but as its quite an old model now they dont want to know as its obsolete.  |O

Is anyone here familiar with this model? any documentation for it?

Ive opened it up and have done a quick visual inspection, i cannot see anything blown etc, but im at a standstill with it.


Any help is greatly appreciated, Thanks in advance,

Taylor

Title: Re: Megger/AVO BM223 IR & Continuity Tester
Post by: George Edmonds on April 07, 2023, 10:05:35 pm

Hi

I don’t know if this will help.  Megger had a bad habit of using very thin sections of PCB track as one time fuses, they are very difficult to spot when open/blown.

G Edmonds