New owner of a 121GW that I just purchased new and received a couple of days ago. Bit of an upgrade from my old Sparkfun meter!
Anyway, just wondering what I should be expecting when in resistance measuring mode. When its auto ranging and I'm trying to zero out the test leads by crossing them with the little indents near the tip to get a good contact, I hit the 'REL' to zero it out, but its still jumping around, sometimes even up to over an ohm. I'm trying my best to keep the pressure evenly on them, but its constantly jumping around. I tried this also with and without holding my fingers onto the actual tips. I can see the little bar meter along the bottom just 'twitching' occasionally
Is this to be expected with auto ranging? I've noticed it, but not so much, when I put it in specific (low resistance) ranges, its also jumping around when trying to zero out the leads resistance. With the auto ranging it also can sometimes be taking quite some time (> 1 second) to settle down even though I'm making a firm contact.
At first I didn't push the leads in all the way
and seat them down properly, just went as far as it felt firm, but obviously wasn't all the way in. As its new, I didn't want to use too much force, but they're now definitely pushed in properly (pretty much sits flat against the face of the meter) and I'm still having this issue.
Its probably more of a pain when just testing random resistors of unknown values (0 ohm to 1M), otherwise I can put it into the expected range(s) and it seems then to do a much better job at quickly showing the right value.
So is this expected behaviour, or do I have a problem with either the test leads or the meter?
Hope I'm not asking a dumb question!
Thanks.