How to use an old Biddle Megger Series 601

[[email protected]]

I have an old Biddle Megger, model 601 that I was told was made in the
fifties. It indicates that it will read up to 20k ohms. I have no
idea how to use it and would like to use it for servicing antique
electric motors. Anyone got any pointers or even a manual they could
copy ( the instructions on the lid reference a manual) It has four
posts on the end of the case, P1 P2 and C1 and C2. P1 and C1 have a
bridge between them. I assume that the P terminals are for potential
and the C terminals are for capacitance?

Charles

 

[Rich Andrews.]

[email protected] wrote in @newssvr24.news.prodigy.com:

I have an old Biddle Megger, model 601 that I was told was made in the
fifties. It indicates that it will read up to 20k ohms. I have no
idea how to use it and would like to use it for servicing antique
electric motors. Anyone got any pointers or even a manual they could
copy ( the instructions on the lid reference a manual) It has four
posts on the end of the case, P1 P2 and C1 and C2. P1 and C1 have a
bridge between them. I assume that the P terminals are for potential
and the C terminals are for capacitance?

Charles

Most of the meggers measured in megohms. I would venture to say that 20k
means 20,000 megohms.

It has been too many years for me to help you any further other than to
say, "Be careful". A megger with a HV supply can hurt....bad! Biddles
also made hi-pot testers which are even worse.

You might try an email to the people at www.biddlemegger.com. I'll bet
they can help you identify what you have and provide info on how to use
it.

Good Luck!

r

 

[[email protected]]

Biddle ( now Megger) tried to help, but didn't have much data. After
searching about I finally figured out that I have a ground potential
tester as opposed to an insulation tester, so the resistance range is
indeed 20k ohms. I also have a standard three post Biddle insulation
tester, and know how to use that one, so turns out I have some
capabilities here in equipment I didn't know I had.

Charles

 

[Z]

[email protected] wrote in @newssvr24.news.prodigy.com:


Most of the meggers measured in megohms. I would venture to say that 20k
means 20,000 megohms.

It has been too many years for me to help you any further other than to
say, "Be careful". A megger with a HV supply can hurt....bad! Biddles
also made hi-pot testers which are even worse.

You might try an email to the people at www.biddlemegger.com. I'll bet
they can help you identify what you have and provide info on how to use
it.

Good Luck!

r

Would an insulation resistance meter of such vintage measure to 20
Gigaohms?