EDNEDN Guru Joined: 18/02/2023 Location: United StatesPosts: 306
Posted: 03:28am 18 Jul 2025
Yes! Check if the clamp is magnetized. A tiny bit of magnetization isn't much of a problem. But if you can pick up and hold small pins or needles with it, you won't be able to measure accurately with the clamp.
The big problem I've had is it is really hard to demagnetize those clamps. The hysteresis values are pretty high. And you have to take it deep into hysteresis (in the right direction) to undo the magnetization. Edited 2025-07-18 13:28 by EDNEDN