Thanks Guy's,
understand what your your saying about what it does for the price point.
I was wondering how much zero drift different ones had (batch variation?) as my primary use for 1 would be Parasitic battery drains when cars 'shut down' , like joeqsmith commented on.
I also have tried other amp clamps and some are so variable that they are unusable with any confidence for this task, maybe i was thinking that readings in the 10mA and lower, accuracy is too much to expect in real usable workshop conditions?
My trusted 'old friend' is a Lem Heme LH630 which is pretty stable but only has a 100mA resolution, it does the job (no manual zero point
![Sad :(](https://www.eevblog.com/forum/Smileys/default/sad.gif)
), but a finer accuracy is always nice as long as its stable
![DMM :-DMM](https://www.eevblog.com/forum/Smileys/default/smiliey_dmm.gif)
Have you guys any idea what limit's the UT210E will handle before this 'set' magnetism happens? Is it dependant on the setting your on? i.e. 2A and you measure 150% of this........or 150% of it's 100A maximum value (does that make sense?) Basically if you overload the hall sensor? or is it the clamp core that becomes magnetised?
If this 'set' condition happens....what is the resultant behaviour and what was your degauss tool to fix it.
Thanks Guy's
![Smiley :)](https://www.eevblog.com/forum/Smileys/default/smiley.gif)