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

[Bob La Londe <none@none.com99>]

On 12/18/2020 6:53 PM, ABLE1 wrote:
> On 12/18/2020 10:40 AM, Bob La Londe wrote:
>> On 12/18/2020 8:31 AM, alar...@xxxxxxx wrote:
>>> On Thursday, December 17, 2020 at 8:59:19 PM UTC-5, ABLE1 wrote:
>>>> 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
>>> Just Google CRC Urethane Seal Coat and I'm sure you can find it and
>>> other brands of PCB seal coatings on line.
>>>
>>
>> We used to use Scotch Coat on skinned underground cable.  Pretty good
>> stuff.  If the damage was no more than than into the armor sheath it
>> never failed.  Coat, tape, coat again.  For actual conductor damage we
>> would use real splice kits filled with resin.  Anyway Scotch Coat is
>> good stuff, but brush on.
>>
>
> Bob,
>
> Maybe is should be spelled 3M ScotchKote.
> Seems to look up better. :-)
>
> Have a good weekend.
>
> Les
>
>


Meh!  You found it.

Merry Christmas

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