Just inherited a Fluke77 meter. Stuck a battery in it and the display comes on as expected, all the controls seem simple enough.

however, it will not sit at zero on Volts (ac and dc, both start at about 10 and go up to about 50, give or take, range means will read 4.7 or whatever if you play) and amps up to about 1.1, again ac and dc.

Any clues?? is there a calipbration/zero fiddle?

Thought somebody on here may know

edit
had a look on the net, seems this is a series 1 version, so long in the tooth, but very expensive new......

[Edited on 12/7/11 by cliftyhanger]

Bad Leads?

RD

no leads plugged in

as its been sitting for a while, give the switch a fiddle... dont take apart, just work it for a while....
works with my old fluke
the contacts appear to be self cleaning

quote:

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Originally posted by cliftyhanger
no leads plugged in

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Is it reading zero volts when both leads are touching to complete a circuit. ?

some tips here.
http://www.edaboard.co.uk/fluke-77-ohms-reading-cal-off-t226654.html

This is an autoranging voltmeter, it will default to the most sensitive range if you switch it on and have nothing connected to it, and general electrical noise will cause it to read a non-zero value. What happens if you actualy measure a known voltage with it?