Re: LOL A Real On Topic Question!! Imagine that!!

["alar...@xxxxxxx" <alarminex@xxxxxxx>]

On Monday, December 14, 2020 at 9:59:24 PM UTC-5, ABLE1 wrote:
> Hey guys!!=20
>=20
> I have serious question. I have a customer that has a=20
> door access keypad mounted on a single gang plastic box=20
> that it mounted on the side of a steel building next to=20
> the door. The keypad is a IEI 212W which is weather rated.=20
>=20
> The original keypad was installed 5+ years ago. Last week=20
> the customer reported that the code was not always working.=20
> It took a couple of tries on the keypad to get the code to=20
> energize the electric strike.=20
>=20
> When I got on site all looked good but I noticed that that=20
> not all keys were reliable. The decision was made to=20
> just replace the keypad. I ordered a new unit, same model,=20
> and installed two days later. Programmed and all was good.=20
>=20
> When removing the old keypad I noticed some rust on a few=20
> terminals. Upon further inspection back at my office=20
> I noticed some other areas on the circuit board that had=20
> some spots that may have been moisture related.=20
>=20
> First off this keypad was mounted with the supplied foam=20
> gasket and tight. The inside of the box was dry.=20
>=20
> The only opening to the box is where the wire penetrates=20
> the back from the inside wall cavity.=20
>=20
> The question is how did water get inside the box and on=20
> the keypad terminals and circuit board??=20
>=20
> I am thinking condensation. If I am right then how to=20
> fix the problem??=20
>=20
> This is where I stop typing and look to read possible=20
> solutions from the crowd.=20
>=20
> Oh and local temperatures range from 20F to 100F +/-=20
>=20
> Thanks for any thoughts!!=20
>=20
> Les
Hi Les,

I've used this in the past

https://www.grainger.com/product/4YPK3?gclid=3DCjwKCAiAoOz-BRBdEiwAyuvA6_dC=
miZvE0i97xN2mxwzV_ASkF4RuFemFi-1zxMX8HtNMXSC23HoeBoChm4QAvD_BwE&cm_mmc=3DPP=
C:+Google+PLA&ef_id=3DCjwKCAiAoOz-BRBdEiwAyuvA6_dCmiZvE0i97xN2mxwzV_ASkF4Ru=
FemFi-1zxMX8HtNMXSC23HoeBoChm4QAvD_BwE:G:s&s_kwcid=3DAL!2966!3!281698275738=
!!!g!470307065699!&gucid=3DN:N:PS:Paid:GGL:CSM-2295:4P7A1P:20501231

Granted it was a long time ago, but I never had to go back and change the k=
eypad so it worked Ok.
Viking Telecom Solutions has an option on their outdoor products to weather=
 proof them but I don't know if they have a keypad or not. Besides I think =
they all they do is just dip their PCB's in some kind of gook and charge yo=
u another $100.00

I'm thinking that just dipping (or painting) the PCB in some polyurethane w=
ould do the same thing and last at least 5 or ten years.=20