Author Topic: (CANCELLED) WTB (AU) Small 10uA analog panel meter  (Read 1641 times)

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Offline enut11Topic starter

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(CANCELLED) WTB (AU) Small 10uA analog panel meter
« on: October 25, 2023, 09:07:05 am »
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!
« Last Edit: October 28, 2023, 10:28:03 pm by enut11 »
an electronics nut from wayback...
 

Online coromonadalix

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #1 on: October 25, 2023, 09:42:49 am »
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 ...
 

Offline wraper

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #2 on: October 25, 2023, 09:44:48 am »
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.
 

Offline woodchips

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #3 on: October 25, 2023, 12:36:47 pm »
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.
 

Online Alex Nikitin

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #4 on: October 25, 2023, 12:40:06 pm »
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
 

Online PA0PBZ

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #5 on: October 25, 2023, 02:34:58 pm »
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.


You could be right  ;)

Keyboard error: Press F1 to continue.
 

Offline wraper

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #6 on: October 25, 2023, 08:01:57 pm »
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.
 

Online Kleinstein

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #7 on: October 25, 2023, 08:14:19 pm »
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.
 

Online PA0PBZ

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #8 on: October 25, 2023, 08:23:52 pm »
All the GB/T7676-98's I could find have an Amp scale, so there is something fishy about it
Keyboard error: Press F1 to continue.
 

Offline wraper

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Re: WTB (AU) Small 10uA analog panel meter
« Reply #9 on: October 25, 2023, 11:53:17 pm »
All the GB/T7676-98's I could find have an Amp scale, so there is something fishy about it
Here is mA
 
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Offline ivo

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Re: (CANCELLED) WTB (AU) Small 10uA analog panel meter
« Reply #10 on: November 23, 2023, 12:02:51 pm »
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.
 


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