Products > Test Equipment

Fluke 87V "bricked" when probing own battery

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Z-mann:
I discovered the following thing:
When you touch (accidentally!) the positive terminal of the 9V Battery, with the COM lead in VDC Mode - the meter will reset and shows "bAtt" continuously.

I think the Batt.-Voltage detection has failed.

Of course the Battery is full and the fuses are fine.

I downloaded the service manual, and I'm currently looking for a voltage divider (or similar) for measuring the Vbat.
I would appreciate some advice or a hint to look for, in the schematics.

Greetings  :-BROKE

tszaboo:
Every manual states: Remove probes when opening. No probes, no measuring battery. I don't know why you would even try??? It has low battery indicator for you.

retrolefty:

--- Quote from: NANDBlog on May 19, 2014, 10:41:59 pm ---Every manual states: Remove probes when opening. No probes, no measuring battery. I don't know why you would even try??? It has low battery indicator for you.

--- End quote ---

Come on he said "(accidentally!)". The question is it recoverable or did it cause some component damage?

FrankenPC:

--- Quote from: NANDBlog on May 19, 2014, 10:41:59 pm ---Every manual states: Remove probes when opening. No probes, no measuring battery. I don't know why you would even try??? It has low battery indicator for you.

--- End quote ---

I honestly didn't know that.  I do now though.  Thanks for the valuable lesson bricked Fluke guy!

NOTE:  In the 25 years I've been using DMM's, I've never used the meter on it's own internals.  Just for the record.

Napalm2002:
It's the whole don't push that button thing. You know u wanna!

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