Re: Contact sensors?

[Paul Gale <groups2@xxxxxxxxxxxxxxxx>]

Hi pete,

Thanks but unfortunately the loft was finished some time ago, so no
chance of moving the cable. Not sure how successful it'd be at the top
though anyway - may not be particularly sensitive? I know the holes
and fixings you're talking about.

Any other ideas anyone?

Paul. (Mobile)


On 19 Nov 2008, at 14:45, "Pete Church" <yahoo@xxxxxxx>
wrote:

> Paul,
>
>
>
> If you haven't completely enclosed the Velux yet I would suggest
> putting a
> sensor at the top of the window in the cavity above/behind the
> handle where
> the motor sits (on an old style non Integra one).  There is also a
> grommet/hole to pass the cable through the frame into that cavity.
> Because
> of the way the mechanism works for cleaning there is still clearance
> at the
> top of the window even with the window fully rotated.
>
>
>
> HTH
>
>
>
> Pete
>
>
>
> I have 3 large top opening velux windows in my loft and I ran alarm
> cable to the bottom of each. I want to fit a suitable sensor to detect
> when the window is open. Trouble is, the way that the window opens for
> cleaning (whole window swivels 180deg from the center-ish of the
> window) means that there's no clearance for positioning a standard
> magnetic contact sensor between frame and window.
>
> What I really need is a contact sensor that can operate around 50-70mm
> ish between the magnet and reed switch. I've not seen anything like
> this with that kind of operating gap.
>
> Anyone got any ideas or know of suitable sensors ?
>
> I guess there may be other sensor types that may be suitable although
> of has to be fairly discreet (some kind of adjustable proximity
> sensor). Adjustable operating distance would be really good as that
> would allow fine-tuning.
>
> Thanks,
>
> Paul.
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
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