Different false alarms

["Paul" <p-gale@xxxxxxx>]

This is a cross-post from the comfort-technical groups as I know there are
=
a few alarm guru=92s here that don=92t necessarily monitor that group:


Hi All,

I=92m suffering from false alarms at the moment too (but probably of my
own=
making!). I=92ve had 3 false alarms in the last 2 weeks (two of them yeste=
rday/last night) =96 much to the annoyance of my neighbours I think :-(

I have quite a few PIR=92s and a mix of Pyronix Magnum Ultra=92s and
Swisst=
ec/Alarmcom IR120C, both of which are meant to be high-quality PIR=92s
(wel=
l, so I=92m told). When I was woken at 2am this morning I decided to look
a=
t my configuration again and found the following possible problems:

1	Most of the PIR=92s are set to their most sensitive settings (as I was
al=
so using them to trigger automated lighting via HV =96 serial link from
Com=
fort to HV). I guess these need to be =91upped=92 a bit to more stable
sett=
ings?
2	The zone types were set to a sensitivity of 100ms for these sensors =96
I=
set to 500ms this morning. Is this important at all?

I was also wondering whether I should set all my PIR zones to be a
=91perim=
eter=92 type as I believe you then need two or more activations to trigger
=
an alarm =96 Is this good to do or not?

We also have a huge infestation of =91storm bugs=92 =96 the tiny little
bla=
ck bugs that get everywhere (including under the screen of my LCD TV!!!) =
=96 can such a small insect cause a PIR to trigger? I know spiders etc can
=
but these bugs are very small.

My Comfort enclosure and slave panel are mounted in Node0 which gets
extrem=
ely hot (working on an air extract system now) =96 Could high temperatures
=
cause false alarms? What temperatures are the electronics tested to?

Your thoughts would be most welcome (and maybe help me get more sleep!)

Paul.