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| Wierd looking Shunt.... |
| << < (4/7) > >> |
| Fungus:
--- Quote from: Stray Electron on December 20, 2022, 05:46:34 pm ---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. --- End quote --- If it has solder and bite marks then the calibrator was having a bad day. :-DD |
| Gyro:
I wonder if the solder blob is where they squeezed the cutters a bit too hard and actually cut through! :D Yes, the better quality shunts are filed or ground over a long length for uniform dissipation and accuracy. They also have crimped areas near the ends to ensure that they sit at a predictable height (wire length) above the PCB. Fluke are probably best (in a handheld anyway), they weld a U shaped piece of wire across each end of the shunt so that they can do proper 4 wire Kelvin sensing. |
| groovesonshunt:
--- Quote from: BillyO on December 20, 2022, 02:52:34 pm ---Good lord! That's atrocious! They certainly have some serious production issues. Can you get your money back? Then get yourself a Brymen or even a UNI-T. Edit: It seems they are actually a German company out of Bremen. That looks suspiciously like a stenciled cheap Chinese meter. If you don't mind y asking, how much was it? --- End quote --- Yes, I will get my money back. I paid 120 US, and now its at 178 US. https://elektronik-lavpris.dk/p116583/dmt-4010rms-digital-multimeter-dmt-4010rms-professionel/ |
| groovesonshunt:
https://www.monacor.de/ They have the exact same meter on the front page, lower down. |
| RoGeorge:
--- Quote from: groovesonshunt on December 20, 2022, 12:05:39 pm ---The Shunt had big balls of solder and deep grooves --- End quote --- That's shunt tuning for calibration. Dents make the shunt resistance higher, blobs of solder make the resistance lower. |
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