Products > Test Equipment
Saving yet another Fluke 189
Shock:
Most input problems are more likely residual contamination (leakage) problems first, not soldering by a beginner. Which is why you need to clean the area like your life depends on it before the oem part is replaced.
I'd solder it with close to the original alloy though if it matters. Do a sanity test and pay close attention to settle times, repeatability and current draw. If still a problem then I'd ditch the super cap and thoroughly clean and dry the pcb before anything else. Knowing it's not been poorly calibrated is really helpful as it sets a baseline to repair to.
Dave just did a video on board leakage btw.
joeqsmith:
--- Quote from: Shock on September 12, 2023, 02:54:41 am ---Most input problems are more likely residual contamination (leakage) problems first, not soldering by a beginner. Which is why you need to clean the area like your life depends on it before the oem part is replaced.
I'd solder it with close to the original alloy though if it matters. Do a sanity test and pay close attention to settle times, repeatability and current draw. If still a problem then I'd ditch the super cap and thoroughly clean and dry the pcb before anything else. Knowing it's not been poorly calibrated is really helpful as it sets a baseline to repair to.
--- End quote ---
While I did show photos of the broken pins, I'm guessing you did not see them. No cleaning is going to help this meter.
So the new terminal block arrived from FlukeUSA. I'm not impressed. It looks like a Chinese knockoff rather than the quality I see with the OEM parts.
joeqsmith:
Shown with a 1k, 1Gohm and 100uADC applied. Ran through all the basic tests an it appears in good order now.
Would be nice if there was a way to repair the rubber on these but I guess the scars on all of mine give them character.
daisizhou:
This seat doesn’t look very “exquisite”.Maybe it works, but it's not perfect
joeqsmith:
Whole meter is far from perfect :-DD I would rather have the OEM block but I guess this expensive knockoff is about as good as it gets.
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