I am after a small (~60mm wide) 10uA panel meter similar to the one below except I need 0-10uA full scale.
BTW, the ebay listing for that meter described it as being able to withstand 2000v for 1 minute!
2000v for 1 min lolll absurd
its just a moving needle on a coil, do you sincerly think it will manage that voltage
, it will simply fry and fuse open ...
2000v for 1 min lolll absurd
its just a moving needle on a coil, do you sincerly think it will manage that voltage , it will simply fry and fuse open ...
Most likely it's about isolation, nothing to do with operation.
Really don't think you will ever buy a 10uA meter, finding 30uA is bad enough. Just use an op-amp with 1mA is easier.
My gut feeling is that Chinese meter in the first post is a fake, needle meters with less than 50uA full scale are very rare and the letter "u" on the meter looks like hand drawn.
Cheers
Alex
Looks like it was mA, since A is sifted to the right side. They probably removed the shunt and scribbled crude u instead of m.
It is not so uncommon to have a meter movement with a scale that does not directly represent the current to the movement. Nothing special with one that need an external shunt. Those for an external amplifier are more rare and the one shown looks hand drawn.
All the GB/T7676-98's I could find have an Amp scale, so there is something fishy about it
Can easily get 50uA 85C1's on Ali. I have one 0-100uA, although I just tested and it seemed to be reading 87uA as 80.
