Passive Infra-Red (Pir) Movement Detectors; Positioning The Pir Detectors - Response SL5 Installation & Operating Manual

PASSIVE INFRA-RED (PIR)
MOVEMENT DETECTORS
PIR Detectors detect movement in a protected area
by detecting changes in infra-red radiation levels
caused for example when a person moves within or
across the PIR's detection pattern. If movement is
detected an alarm will be triggered, (if the system is
armed). PIR Detectors will also detect animals, so
ensure that pets are not permitted access to areas
fitted with PIR Movement Detectors when the
system is armed.
The Detector incorporates an anti-tamper protection
feature to protect against attempts to interfere with
the device. If the battery cover is removed, an
alarm will immediately occur at any time, (unless
the system is in Program or Test Modes).
The PIR Detector also incorporates a sensitivity
adjustment feature to compensate for situations
where the detector may be triggered by
environmental changes, (e.g. insects, air
temperature, etc).
To conserve power and maximise battery life the PIR
Detector will only detect movement if there has been
no movement detected within the previous 2 minutes,
(this is known as the detectors sleep period).
The PIR Detector is powered by a PP3 Alkaline
battery which under normal conditions will have an
expected life of approximately 1 year. When the
battery level drops, with the PIR in normal operation
mode and the battery cover fitted, the LED behind
the detection window will flash. When this occurs
the battery should be replaced as soon as possible.
(Note: in normal operation, the LED behind the lens
will not flash on detection of movement).
The system allows you to link one Detector to a
zone, provided that the Detector is mounted within
effective radio range of the Control Panel.
POSITIONING THE PIR DETECTORS
The recommended position for a PIR Detector is in
the corner of a room mounted at a height between
2 and 2.5 metres. At this height, the detector will
have a maximum range of up to 12 metres with a
field of view of 110°.
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1 2 3 4
Detector Range (metres)
When 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
where it is exposed to or facing direct sunlight.
PIR Detectors are not suitable for use in
conservatories.
2. Do not position the Detector
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
it is subject to excessive vibration.
6. Ensure that the position selected for the PIR
Detector is within effective range of the
Control Panel.
7. Do not fix the PIR Detector onto or very close
to metalwork (i.e. radiators, water pipes, etc) as
this could affect the radio range of the device.
Note: When the system is Armed, pets should not
be allowed into an area protected by a PIR Detector
as their movement could be detected and trigger
an alarm.
5 6 7 8 9 10 11
12m
110°
180°
facing a window or
where it is exposed
where
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