Sender: |
|
Mime-version: |
1.0 |
Date: |
Mon, 12 Aug 2002 18:09:05 +0100 |
Reply-To: |
|
Content-type: |
text/plain; charset="US-ASCII" |
Subject: |
|
From: |
|
In-Reply-To: |
<F7C11BAD2FBAD4119CE900508BE7784D19C85B@COMPAQ_ML350> |
Content-transfer-encoding: |
7bit |
Parts/Attachments: |
|
|
On 12/8/02 3:00 pm, "David Hannick" <[log in to unmask]> wrote:
> Hi
>
> I am an engineer working for a company that designs smoke alarms. We have a
> problem with insect infestation in some markets such as Australia which leds
> to circuit board damage through shorts etc. The enclosure has to have
> openings to allow smoke and air to flow in to the unit, but insects get in
> through these. Are our options limited to conformal coatings and insect
> screens to cure the problem. Are there other options? Has anyone else
> experience of similar problems.
> Thank you for your help.
>
> Best Regards
> David Hannick
>
> Ei Electronics
> Shannon
> Co. Clare
> Ireland.
David,
The conformal coating is probably the best solution, and this is a problem
that others have faced.
Keep-in-mind that if the insects in question are ants for example, they
excrete formic acid...which is kinda corrosive!
Best solution we found was to coat with a UR coating.
Regards Graham
[log in to unmask]
---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------
|
|
|