
2
SELECTING A
1
LOCATION
Your PIR Detector has a number of
detection zones at various horizontal and
vertical angles, as shown. A moving human
body crossing or entering one of the zones
activates the Detector. Mount the Detector
at a height of 2.5m for the best all-round
coverage [Fig. 1] - it may be positioned up
to 4m high for a greater detection range,
but the detection pattern will be less
effective.
Careful positioning of the tilt and swivel
Detector head is needed to ensure optimum
performance. When performing the WALK
TEST [Section 3], the angle of the head
may require slight adjustment, particularly
when mounting your PIR Detector higher
than the recommended 2.5m.
Also note that the PIR Detector is
much more sensitive to movement ACROSS
its field of vision rather than movement
directly toward it - so if possible, mount the
PIR facing ACROSS the approach to your
property.
False Activation Reduction technology
makes your PIR Detector less prone to
activation by wind, rain, moving branches,
etc, but care should be taken to avoid
siting near sources of heat - central heating
outlets, tumble dryer exhausts and extractor
fans, for instance. Under extreme conditions
branches and reflective surfaces such as
pools of water or white painted walls can
also be a problem. Wherever possible,
mount the PIR away from such sources of
interference.
2.5m
2.5m
3m
12m
12m
2m
3m
3m
7m
7m
3m
3m
0
º
25
º
(Max)
Fig. 1
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