Re: [amsat-bb] removing Salt water from electronics.

[ahelmfelt@xxxxxxxxxxxx]

Hi...

Well this is the E-mail that call up old experience from Wire Line logging in
oil wells .

We had Logging panels even with tube tech. and of course high voltages, this
was on
platforms on the sea, this is a salty environment, when the equipment had
problems
we wash it with a fresh water hose and some detergent, after it will shake
to take excess 
off water and put it into a chamber (old pipe with a bolted cover) and
connected a vacuum
pump for several hours, this was the grate solution for all the problems, I
believe that if
you put the equipment on front of a air conditioner will be the same result.

You must use a hose with some pressure to be able to move deposits under
components
a good help is a soft paint brush.

Don't be afraid I did it several times with perfect results.

Al  LU2FGN





At 06:43 AM 07/08/2001 -0500, you wrote:
>Ed.
>
>I'd be curious to know how this one turns out (the salt water).  All my 
>"close encounters" with radios and salt water have a "sad ending"...
>
>
>Robert Oler WB5MZO Houston TX
>
>
>
>>From: "Edward R. Cole" <al7eb@ptialaska.net>
>>To: amsat-bb@AMSAT.Org
>>Subject: Re: [amsat-bb] removing water from electronics.
>>Date: Tue, 07 Aug 2001 00:00:25 -0800
>>
>>Another anecdote from "watering your radio"...etc.
>>
>>About two weeks ago one of our tech's fell off the back of a boat into the
>>35 degree water of Cook Inlet, Alaska...and survived.  His radio took a
>>bath, too.  The other radio he was holding in his hand as he attempted
>>stepping from one boat to another got dropped.  It is now feeding the fish!
>>
>>They immediately turned off his belt-radio, removed the battery, rinsed in
>>in fresh water [Cook Inlet is salt water], and placed the radio in a
>>zip-lock bag full of fresh water.  There it remained for three days until I
>>returned from vacation.
>>
>>I took the radio and dismantled it and sprayed it with water and dried it.
>>Immediately I sprayed it with electronic circuit cleaner [mostly alcohol],
>>toothbrushed, dried...five times.  The first couple times, using a
>>magnifier, I could see a fine salt coating on the pcb but that was largely
>>removed after repeated cleaning.  After allowing to dry for a day...I smoke
>>tested it [applied power].
>>
>>Zip...Nada...No worky.  I has now sat on my bench for a couple weeks
>>[drying or waiting for the tooth fairy].
>>
>>I'll write and tell you the rest of the story!  {...to be continued}
>>We may have it bronzed and awarded at the next safety meeting to the guy
>>who went swimming ;-)
>>
>>Ed
>>
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>
>
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