I recently was given a Fluke 355 AC/DC current clamp meter...yay for me! but its got some issues.
Everything works pretty good as far as i can tell except for the DC Current measurements. The display just bounces from -107A to 466A.
any ideas where to start? i cant find a service manual for the 355 and as far as i know its never been abused. I've had a look inside and the pcb seems to be in good shape, no battery corrosion, or other damage. Pretty sure i'm the first person in there.
I'd love to get this thing working again, but its not worth the $680 fluke wants just to take a look. That doesn't even include replacement parts or work.
anyways, thanks in advance for any help you've got!
Graham