RE: Re: Freezer Alarm

[Steve B <steve@xxxxxxx>]

Havent read the whole thread so excuse me if i am way out of the 
conversation here.

If your detecting the door and the doors have magnetic strips in - why not
a minature read switch ?

At 05:40 21/05/2002 -0400, you wrote:
>With either Andy's or Ken's suggestions (both switches of some sort)
instead
>of mounting on the side of the door, you may wish to mount it
underneath the
>door. It's then less visible and the freezer may fit into it's space a
bit
>easier. Our fridge / freezer is free-standing but it has an apperature
into
>which it fits. Mounting something on the side would foul the hole.
Downside,
>of course, is that the alarm will be a bugger to fit & test when
mounted
>underneath ;-)
>
>Cheers,
>
>Tim H.
>
>-----Original Message-----
>From: andy_powell_is
>
>What about a door contact closure stuck on the door, (normally Open)
-
>you know the kind of thing, those magnetic ones used on alarm
>systems, this could be wired back to Homevision (if you have one)
>whcih could handle the logic..
>
>Crappy drawing below (side view of freezer door)
>
>     YYYYY XXXXX     
YYYYY =  NC/NO contact (to Homevision)
>     ----+ +----+     XXXXX
=  'other bit' stuck on the door
>       F   D  
>       R   O  
>       E   O  
>       Z   R  
>     ----+ +----+
>
>
>Andy
>
>
>--- In ukha_d@y..., "Don McAllister" <donmc@b...>
wrote:
> > Ken, It's freestanding and located in our utility room so any
old
>kludge
> > will do. The utility room is next to the kitchen so any
audible
>alarm
> > would suffice. Thought if it could trigger after two minutes of
the
>door
> > being left ajar that would probably do it. I wouldn't want to get
so
> > sophisticated as measuring the temp.
> >
> > Cheers
> > Don
> >
> > > -----Original Message-----
> > > From: Kenneth Watt [mailto:kennwatt@b...]
> > > Sent: 21 May 2002 09:36
> > > To: ukha_d@xxxxxxx
> > > Subject: RE: [ukha_d] Freezer Alarm
> > >
> > > Don is it integrated or freestanding?
> > >
> > > BTW, if the alarm light comes on then the temp has already,
on
>most
> > > machines, risen to above -15C and the food has already
started to
> > > perish!!
> > >
> > > -18C is the optimum temp for food storage and most machines
cycle
> > > between -15C and -21C to give an average -18C so, basically
if you
> > > notice that the food is soft it's out with the big frying
pan! ;-)
> > >
> > > K.
> > >
> > > > -----Original Message-----
> > > > From: Don McAllister [mailto:donmc@b...]
> > > > Sent: 21 May 2002 09:11
> > > > To: ukha_d@xxxxxxx
> > > > Subject: RE: [ukha_d] Freezer Alarm
> > > >
> > > > I was thinking more of some sort of contact switch and
audible
>alarm
> > > > with a setting to go off if the contact is broken for
more than
>a
> > set
> > > > time. Looking for something self contained and
simple.
> > > >
> > > > Don
> > > >
> > > > > -----Original Message-----
> > > > > From: Mark McCall [mailto:mark@a...]
> > > > > Sent: 21 May 2002 08:59
> > > > > To: ukha_d@xxxxxxx
> > > > > Subject: Re: [ukha_d] Freezer Alarm
> > > > >
> > > > > > SWMBO has requested a Freezer Alarm due to me
leaving the
> > freezer
> > > > door
> > > > > > ajar for the 3rd time :-)
> > > > > >
> > > > > > Any pre-built solutions available or any
suggestions
> > appreciated.
> > > > >
> > > > > Does it have a light?  Could you monitor that
and alarm if
>it's on
> > > for
> > > > > more
> > > > > than say 30secs.
> > > > >
> > > > > M.
> > > > >
> > > > >
> > > > >
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