POSITIONING THE PIR MOVEMENT
DETECTORS
The recommended position for a PIR Movement
Detector is in the corner of a room mounted at a
height between 2 and 2.5m. At this height, the
detector will have a maximum range of up to 12m with
a field of view of 110°.
Detection Zone Pattern for PCB in position 5
The Position of the PCB inside the PIR can be set to 5
different positions to adjust the range and height of the
detection pattern created by the PIR. Setting the PCB
in position 3 will reduce the range to approximately 9m,
with position 1 providing a range of approximately 6m.
The recommended position for the PCB is in position
5. (see diagram overpage).
When considering and deciding upon the mounting
position for the detector the following points should be
considered to ensure trouble free operation:
1. Do not position the detector facing a window or
where it is exposed to or facing direct sunlight. PIR
Movement Detectors are not suitable for use in
conservatories.
2. Do not position the detector where it is exposed to
draughts.
3. Do not position the detector directly above a heat
source, (e.g. fire, radiator, boiler, etc.).
4. Where possible, mount the detector in the corner
of the room so that the logical path of an intruder
would cut across the fan detection pattern. PIR
detectors respond more effectively to movement
across the device than to movement directly
towards it.
5. Do not position the detector in a position where it
is subject to excessive vibration.
6. Ensure that the position selected for the PIR
Detector is within effective range of the Siren,
(refer to "Testing of Remote Control").
Note: When the system is Armed, household pets
should not be allowed into an area protected by a PIR
Detector as their movement could trigger the PIR and
initiate an alarm.
Note: DO NOT fix the detector to metalwork or locate
the unit within 1m of metalwork (i.e. radiators, water
pipes, etc) as this could affect the radio range of the
Keypad.
INSTALLING AND CONFIGURING THE
PIR MOVEMENT DETECTORS
Ensure that the system is in Service Mode, (see
page 17).
1. Undo and remove the fixing screw from the bottom
edge of the PIR. Carefully pull the bottom edge of
the detector away from the rear cover and then
slide down to release the top clips.
2. Carefully drill out the required mounting holes in
the rear cover using 3mm drill according to
whether the unit is being mounted in a corner or
against a flat wall.
3. Hold the rear cover in position against the wall and
mark the positions of the fixing holes.
4. Fix the rear cover to the wall using the two 18mm
No.4 screws and 25mm wall plugs, (a 5mm hole
will be required for the wall plugs). Do not over-
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