RE: Different false alarms

["Kevin Hawkins" <lists@xxxxxxx>]

I think this will be your issue - I am guessing that although the
insects
are very tiny and won$B!G(Bt themselves be $B!F(Brecognised$B!G(B by
their own body
heat,  when they move across a sensor they will mask the various fields
that
the sensor sees and cause an effect of the zones seeing heat movement
across
their view.

Solutions ? Dual tech sensors would avoid this (microwave/IR combined) or
get the crits out of your sensors/house.  Sealing the sensors although you
say they are capable invaders. Sounds like you have an infestation of these
- I assume you have explored the various routes for ridding your home of
these ??  I have seen these $B!F(Bflood your house with ultrasonic
noise$B!G(B
devices that plug in to a socket - supposed to rid your home of spiders etc
- but I remain sceptical.

BTW - altering trip timings on the zones (within Comfort) won$B!G(Bt help
-
altering the sensor sensitivity is done at the sensor - often accompanied
or
only achievable by increasing the $B!F(Bpulse count$B!G(B - but this is
not the way
to go - it will not provide any long term solving of the issue.



K



-----Original Message-----
From: Paul [mailto:groups@xxxxxxx]
Sent: 10 July 2003 14:16
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Different false alarms



On opening up each sensor there were a number of thunder flies in each
(5-10
or so). I wonder if one of these, walking across the sensor is enough
(although they are only 1-2mm long).



Difficult to seal the sensors as well as these bugs are designed to hide in
very tight spaces!

Paul.



-----Original Message-----
From: Kevin Hawkins [mailto:lists@xxxxxxx]
Sent: 10 July 2003 13:20
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Different false alarms



Hmmm ,

It's quite concerning that these are all on separate zones - and
have only just started - makes me think something 'global' has changed -
possibly your little bugs - have a peek in a sensor,  but again this would
normally manifest itself on one zone first. Try dropping the sensitivities
a
little - if this changes things then it points in a certain direction. Does
the weather have any effect on this ??
It is possible that the panel could be causing issues - are the
faults consistently on PIR's or has any other type of zone tripped ever -
assuming you have other types - are the offending zones in any way related
(
if you have any expansion units on the alarm for example).  I am not
familiar enough with Comfort to know if there is a 'double knock' facility
available on each zone - I suspect there is and I think this is what you
want to try setting rather than the perimiter zone approach - although
perhaps this is how Comfort does it.

K


> -----Original Message-----
> From: Paul [mailto:groups@xxxxxxx]
> Sent: 10 July 2003 10:11
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Different false alarms
>
> Thanks Frank.
>
> They have all been different sensors. I guess the most likely reason
so
> far is the sensitivity settings - I'll change them all today and ditch
> the automated lighting functions (which never were responsive enough
> anyway