Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => AmpTools/Tech Tips => Topic started by: jjasilli on April 07, 2009, 12:02:24 pm

Title: Fluke Bench DMM Question
Post by: jjasilli on April 07, 2009, 12:02:24 pm

I recently got a Fluke 8000A DMM from eBay.  It seems to function well.  It's a semi-portable / bench model that can run on an internal battery.  I just noticed that while plugged into the wall outlet, there are lights ON or a glow coming from inside the unit.  This goes away when the unit is un-plugged from the wall.  Is this normal?

Title: Re: Fluke Bench DMM Question
Post by: FYL on April 07, 2009, 03:17:47 pm

Yes, this is normal. There's an incandescent lamp fitted to the-01 versions. It acts as a current limiter when the DMM is mains connected with the batteries in charge mode.

Check page 61 of the manual:
http://bama.edebris.com/download/fluke/8000a/8000A.pdf

Title: Re: Fluke Bench DMM Question
Post by: jjasilli on April 08, 2009, 03:54:29 am

Thanks!