Electronics > Beginners
crying Newbie
tggzzz:
--- Quote from: Hero999 on September 20, 2018, 08:00:18 am ---It wouldn't surprise me if some electronics companies just used a dishwasher fed by tap water many years ago, but I'd think they would have stopped this long ago.
--- End quote ---
During servicing, Tektronix used to clean scopes by spraying them with water.
https://www.elektormagazine.com/news/saturday-afternoon-give-your-oscilloscope-a-good-wash-down
ISTR there are videos of that process.
tautech:
@uc
Sorry to hear of your catastrophe. :(
The SDM3065X getting wet is of concern and I would contact your supplier for advice for internal cleaning. It's internal sensitivity is much greater than a scope so any internal contamination with affect accuracy and stability.
Without official guidance of how to clean the internals, a soft bush and IPA or distilled water to dislodge any deposited salts etc and then dry on a sunny window sill for a few days before reassembly.
Maybe any water ingress is very localized so there's only need to treat obviously water spotted areas.
Good luck, I have my fingers crossed for you.
ogden:
--- Quote from: Hero999 on September 20, 2018, 08:00:18 am ---You're right, ideally deionised water should be used, but in reality plain tap water will work. Once it's dry the tiny amount of dissolved salts aren't a problem, because they need water to be conductive or corrosive.
--- End quote ---
Once I was rinsing "sticky keys" PC keyboard in kitchen sink. LED drivers ans similar "dumb boards" w/o sensitive circuits most likely will survive such as well :) However... would you wash PCB's of your electrometer or >= 6 digit DVM same way? ;)
ogden:
--- Quote from: tggzzz on September 20, 2018, 08:13:33 am ---
--- Quote from: Hero999 on September 20, 2018, 08:00:18 am ---It wouldn't surprise me if some electronics companies just used a dishwasher fed by tap water many years ago, but I'd think they would have stopped this long ago.
--- End quote ---
During servicing, Tektronix used to clean scopes by spraying them with water.
https://www.elektormagazine.com/news/saturday-afternoon-give-your-oscilloscope-a-good-wash-down
ISTR there are videos of that process.
--- End quote ---
Again "small details" are omitted :-DD
1) It was "Back in the 1960s and 1970"
2) “[the instruments] are easy to wash and no particular precautions, other than those applying to vacuum tube type instruments, need be observed“
Pay close attention to vacuum tube type instruments
Berni:
--- Quote from: tggzzz on September 20, 2018, 08:13:33 am ---
--- Quote from: Hero999 on September 20, 2018, 08:00:18 am ---It wouldn't surprise me if some electronics companies just used a dishwasher fed by tap water many years ago, but I'd think they would have stopped this long ago.
--- End quote ---
During servicing, Tektronix used to clean scopes by spraying them with water.
https://www.elektormagazine.com/news/saturday-afternoon-give-your-oscilloscope-a-good-wash-down
ISTR there are videos of that process.
--- End quote ---
Now that's a neat article, had no idea it was standard practice to hose down CRT scopes like that.
My Agilent MSO6000 needs a bit of a clean on the knobs. Those rubberised knobs seam to be real dirt magnets, but that's easy to fix, just pull them off and throw them in a tub of water.
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