[Water Damage?
I have an outside robot that got caught in the rain for a couple of minutes
without its protective cover while I came inside to check the computer
readout.(dumb me). All the electronics got wet including the BS2, Linx HP
xmit,rcr, motor mind B, gear motors and my vom. I disconnected the power and now
have a fan blowing over the electronics. Question - have I smoked everything or
is there a chance?
Jerry
without its protective cover while I came inside to check the computer
readout.(dumb me). All the electronics got wet including the BS2, Linx HP
xmit,rcr, motor mind B, gear motors and my vom. I disconnected the power and now
have a fan blowing over the electronics. Question - have I smoked everything or
is there a chance?
Jerry
Comments
I have saved many flood electronics (saltwater is worst) before.
Disconnect all connected parts.
Carefully dry everything (may use a hair dryer -low temp!)
(50% alchool 50% distillled water could help to a first clean)
(take care to not initiate a fire)
Clean any oxide signs(small brush).
Verify for cut wires. Reflux solderings if signs corroded.
Test items separeted.
For future consider use a conformal coating.
Good luck
ACJacques
CGIJERRY@A... wrote:
>
> I have an outside robot that got caught in the rain for a couple of minutes
without its protective cover while I came inside to check the computer
readout.(dumb me). All the electronics got wet including the BS2, Linx HP
xmit,rcr, motor mind B, gear motors and my vom. I disconnected the power and now
have a fan blowing over the electronics. Question - have I smoked everything or
is there a chance?
> Jerry
similar to the steps descibed by A.C. Jacques. Just one word of caution: you
may have to be *very* patient with the drying process, especially in wet
weather. Residual humidity it may go undetected by a common ohm meter, yet
short parts of the Stamp.
Best of luck.
George Chamilothoris.
suck the air out of the bell (if it can fit). As the pressure drops the
boiling point of water drops and you literally boil the water off at room
temperature.
Then you just have to get the disolved solids off. We used to do this when
our pressure meters would unseal and 1000PSI salt brine would pour in!
Regards,
Al Williams
AWC
* 8 channels of PWM at http://www.al-williams.com/awce/pak5.htm
>
Original Message
> From: A.C.Jacques [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=fUIWjyf8aW6oArTn8uchv-XYvHmYH1ZLa68lS1YGPh15QghU7x616UgptmLUTx_gVohC-OellZS9jt6T06G3x7o0]acjacques@i...[/url
> Sent: Wednesday, June 28, 2000 8:06 AM
> To: basicstamps@egroups.com
> Subject: Re: [noparse][[/noparse]basicstamps] Re: [noparse][[/noparse]Water Damage?
>
>
> There is a chance.
> I have saved many flood electronics (saltwater is worst) before.
> Disconnect all connected parts.
> Carefully dry everything (may use a hair dryer -low temp!)
> (50% alchool 50% distillled water could help to a first clean)
> (take care to not initiate a fire)
> Clean any oxide signs(small brush).
> Verify for cut wires. Reflux solderings if signs corroded.
> Test items separeted.
> For future consider use a conformal coating.
> Good luck
> ACJacques
>
> CGIJERRY@A... wrote:
> >
> > I have an outside robot that got caught in the rain for a
> couple of minutes without its protective cover while I came
> inside to check the computer readout.(dumb me). All the
> electronics got wet including the BS2, Linx HP xmit,rcr, motor
> mind B, gear motors and my vom. I disconnected the power and now
> have a fan blowing over the electronics. Question - have I smoked
> everything or is there a chance?
> > Jerry
>
>
>
going(low heat) and on the surface it appears dry but I know that down in the
crevices it is still wet. Patience will be hard to come by since I am anxious to
know if all my components will still work. Oh well, its a rainy day. I'll find
something else to do during the drying process....
Jerry..
>
> I have an outside robot that got caught in the rain for a couple of minutes
without its protective cover while I came inside to check the computer
readout.(dumb me). All the electronics got wet including the BS2, Linx HP
xmit,rcr, motor mind B, gear motors and my vom. I disconnected the power and now
have a fan blowing over the electronics. Question - have I smoked everything or
is there a chance?
> Jerry
Jerry -
I highly doubt it. You'll probably know for sure by the time you read
this. You might consider a conformal coating to protect the electronics.
This is a (generally) clear or translucent liquid which comes with
various applicatiors (spray, brush, dip), different types (re-entrant or
permanent, dye-colored or "clear", thick/medium/thin viscosity, varying
chemical compositions ("tar"/petro-chem, latex/silicone, in a
non-conductive vehicle/base.
Many companies make this type of product, and here are just a few names
that come to mind:
Humiseal
GC Chemicals
3M
This is the same sort of "goo" the US Army uses on new and stored
weapons, and most of it is impervious to all but the most severe weather
and service conditions. Most of the manufacuturers can be found by
searching "industrial coatings" + "conformal"; the later due to the
property of conforming to the bodies encased in the dried base.
Hope that helps.
Regards,
Bruce
If your power was off you've done nothing harmful to your robot.
Don't make the mistake of trying to blow any moisture out with
compressed air,(you can develop high static charges). A warm
light bulb and a longer time than necessary to dry things out should
do the trick. I rebuild and repair CNC machines and some systems
that have been long in hostile environments, ( any machine shop ),
get their boards pulled for a trip to the sink, are run under water
and softly scrubbed with a three inch soft bristle brush and JOY
liquid....good anti-static properties. A distilled water rinse and
a long drying time and you're ready to go. Watch out for trim-pots and
capicitors, try to keep the gunk from getting in.
Jim Hyland
Original Message
From: Bruce Bates <bvbates@u...>
To: <basicstamps@egroups.com>
Sent: Wednesday, June 28, 2000 11:57 PM
Subject: Re: [noparse][[/noparse]basicstamps] Re: [noparse][[/noparse]Water Damage?
> CGIJERRY@A... wrote:
> >
> > I have an outside robot that got caught in the rain for a couple of
minutes without its protective cover while I came inside to check the
computer readout.(dumb me). All the electronics got wet including the BS2,
Linx HP xmit,rcr, motor mind B, gear motors and my vom. I disconnected the
power and now have a fan blowing over the electronics. Question - have I
smoked everything or is there a chance?
> > Jerry
>
> Jerry -
>
> I highly doubt it. You'll probably know for sure by the time you read
> this. You might consider a conformal coating to protect the electronics.
> This is a (generally) clear or translucent liquid which comes with
> various applicatiors (spray, brush, dip), different types (re-entrant or
> permanent, dye-colored or "clear", thick/medium/thin viscosity, varying
> chemical compositions ("tar"/petro-chem, latex/silicone, in a
> non-conductive vehicle/base.
>
> Many companies make this type of product, and here are just a few names
> that come to mind:
>
> Humiseal
> GC Chemicals
> 3M
>
> This is the same sort of "goo" the US Army uses on new and stored
> weapons, and most of it is impervious to all but the most severe weather
> and service conditions. Most of the manufacuturers can be found by
> searching "industrial coatings" + "conformal"; the later due to the
> property of conforming to the bodies encased in the dried base.
>
> Hope that helps.
>
> Regards,
>
> Bruce
>
>
>
>
>
Just a followup on the water damage. After 12 hours of drying every thing is up
and running to my amazement even the video xmit. The power was on when the rain
started. Usually the cover is on but I was only going to be gone "a couple of
minutes". That was enough time for the clouds to open up. Thanks for all the
helpful suggestions..
Jerry