Products > Test Equipment
Wierd looking Shunt....
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groovesonshunt:

--- Quote from: coromonadalix on December 20, 2022, 03:09:20 pm ---one brand to avoid ?      they look like the CEM brand

--- End quote ---

It sure does!
AVGresponding:
Very much like a rebadged CEM DT9961
BillyO:

--- Quote from: AVGresponding on December 20, 2022, 03:44:29 pm ---Very much like a rebadged CEM DT9961

--- End quote ---
Yes.  Which is a $40 meter.
coromonadalix:
 :-DD :-DD :-DD :-DD
Stray Electron:

--- Quote from: Slh on December 20, 2022, 01:21:59 pm ---The solder blobs are weird but the nicks are not.

Current shunts are often adjusted by trimming them mechanically. You find it on all sizes. Smaller resistors might be be laser trimmed but it's the same thing really. Make all of them fractionally under spec and cut them to increase the resistance until it's within spec.

--- End quote ---

  Exactly.  It's not at all hard to find large external current shunts have been filed.  In urgent situations I have filed resistors to raise their value.  In one company that I used to work for, a production line shutdown costs the company $60,000 per hour so you did anything that you had to in order to get a machine up and running again A S A P.  In that case I eventually got a complete replacement circuit board and I kept it on hand but the old board with the modded resister never failed so I never swapped it out.

   I think the poster that said that it had been filed too deeply and that they soldered up the notch and filed a new one is most likely correct.
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