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121GW Voltage Readings WAY WAY Off. Not a 121GW general issue
daveyk:
121GW Voltage Readings WAY WAY Off. Not a 121GW general issue. Moderator, if you think it is move this message please.
I was trying to trouble-shoot with my 121GW. It hadn't used in several months. I was checking out a few on-board power supplies of an instrument I am trying to check. The 6 volt supply was reading 8.444. I trouble-shot that for an hour then I used my Agilent DVM and it read 6.001 volts! Son of a bxxch!!!
I've never used the 121GW for voltage measurements, just ohms and didn't like it very much for that and really just set it aside after that. Now this. I am using the exact same set of meter leads by the way, I just moved them between DVMs.
I think it may be time to give this 121GW a toss. It never has been right since I bought it and now, I suspect it is over a year old now.
Dave
NoisyBoy:
With reading this far off, the first thing I would check is to put in a fresh set of batteries.
ggchab:
The position of the rotary switch is not always perfectly correct. I had the problem with the resistors'range a few times and it gave incorrect readings.
rsjsouza:
Does teh voltage have AC components as well? If so, check:
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3015706/?topicseen#msg3015706
Otherwise, let me know if you plan to toss it... I may be interested. :-+
dcac:
Also check if the error persists if you change range.
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