RE: Alarm Sensors - building into double glazed units

["Mick Furlong" <hiltoneltd@xxxxxxx>]

Hi Des

lots of questions.....

what kind of windows are these (sash,side openers etc)?

I thought the magnets would need to go on the moving part of the window not
the static?

In my case the windows will have a very shallow channel (estimate 3-5mm) in
both the frame and the window, however these are offset so the inner edge
of
the window channel is in line with the outer edge of the frame channel. I
dont have a problem with drilling the frame but dont really want to hack
the
windows about.

I assume you are using the the flush mount circular contacts from screwfix
do you have any measurements (diameter and depth)? Any ideas on the
distance
these will actuate over?...in my case they will probably be mounted so the
edges of the circles just touch when the windows are closed.

As the non wired part of these is just a magnet how about using some of
that
sticky backed magnetised strip stuff? I seem to recall it being used for
holding secondary glazing in place. Does that seem possible?

Cheers
Mick



-----Original Message-----
From: Des Gibbons [mailto:des@xxxxxxx]
Sent: 01 May 2003 01:07
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Alarm Sensors - building into double glazed units


Hi Mick,


Yup, that was me.


Windows were installed a few weeks ago, and I ran cat5 to each
window/door,
and fed it into a hole drilled in the frame the right diamater for the
alarm
contacts ( from screwfix)

I havn't installed any of the contacts yet ( Alarm only arrived today) and
I
think I will have to remove the magnets from their casing to mount them on
the static portion of each opening. The magnet section of the contact is
too
deep for me to start drilling near the double glazed unit.

Any questions fire away.

Cheers, Des.

> -----Original Message-----
> From: Mick Furlong [mailto:hiltoneltd@xxxxxxx]
> Sent: Wednesday, April 30, 2003 23:38
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Alarm Sensors - building into double glazed units
>
>
> Someone was looking into doing this back towards the start of the
> year.....Des maybe?
>
> How did it go or does anyone else have any information or ideas?
>
> Basically the need is to alarm the windows with no visible wiring
> or surface
> mount contacts....ie the contacts need to be built into the frame with
> wiring going thru the frame and into the wall..