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

[ABLE1 <somewhere@xxxxxxxxxxx>]

On 12/17/2020 5:20 PM, alar...@xxxxxxx wrote:
> On Monday, December 14, 2020 at 9:59:24 PM UTC-5, ABLE1 wrote:
>> Hey guys!!
>>
>> I have serious question. I have a customer that has a
>> door access keypad mounted on a single gang plastic box
>> that it mounted on the side of a steel building next to
>> the door. The keypad is a IEI 212W which is weather rated.
>>
>> The original keypad was installed 5+ years ago. Last week
>> the customer reported that the code was not always working.
>> It took a couple of tries on the keypad to get the code to
>> energize the electric strike.
>>
>> When I got on site all looked good but I noticed that that
>> not all keys were reliable. The decision was made to
>> just replace the keypad. I ordered a new unit, same model,
>> and installed two days later. Programmed and all was good.
>>
>> When removing the old keypad I noticed some rust on a few
>> terminals. Upon further inspection back at my office
>> I noticed some other areas on the circuit board that had
>> some spots that may have been moisture related.
>>
>> First off this keypad was mounted with the supplied foam
>> gasket and tight. The inside of the box was dry.
>>
>> The only opening to the box is where the wire penetrates
>> the back from the inside wall cavity.
>>
>> The question is how did water get inside the box and on
>> the keypad terminals and circuit board??
>>
>> I am thinking condensation. If I am right then how to
>> fix the problem??
>>
>> This is where I stop typing and look to read possible
>> solutions from the crowd.
>>
>> Oh and local temperatures range from 20F to 100F +/-
>>
>> Thanks for any thoughts!!
>>
>> Les
> Hi Les,
>
> I've used this in the past
>
> https://www.grainger.com/product/4YPK3?gclid=CjwKCAiAoOz-BRBdEiwAyuvA6_dCmiZvE0i97xN2mxwzV_ASkF4RuFemFi-1zxMX8HtNMXSC23HoeBoChm4QAvD_BwE&cm_mmc=PPC:+Google+PLA&ef_id=CjwKCAiAoOz-BRBdEiwAyuvA6_dCmiZvE0i97xN2mxwzV_ASkF4RuFemFi-1zxMX8HtNMXSC23HoeBoChm4QAvD_BwE:G:s&s_kwcid=AL!2966!3!281698275738!!!g!470307065699!&gucid=N: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 keypad 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 you another $100.00
>
> I'm thinking that just dipping (or painting) the PCB in some polyurethane would do the same thing and last at least 5 or ten years.
>


Hey Jim,

Now that is some serious STUFF!!
Never heard of that before.

I will have to source that at my local distributor.
Grainger closed their local store a few years ago.  I liked
going there to pickup a specific thing or two.  Always good
to walk the isles to get ideas.

Thanks for the tip.  Much appreciated.

Les