Megger/AVO BM223 IR & Continuity Tester

[TaylorD93]

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. 

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

[George Edmonds]

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