4
Reflective surfaces (ie pools of water or white-painted walls) and overhanging
branches may cause false activation under extreme conditions.
During extreme weather conditions the motion sensor may exhibit unusual
behaviour. This does not indicate a fault with the sensor. Once normal weather
conditions return, the sensor will resume normal operation.
5. Installation
Do not attempt to install if you are suffering from nausea or dizzy spells or on
medication with similar side effects. If in any doubt, consult a qualified electrician.
After choosing a suitable location (see previous section) install the unit as follows:
The unit is suitable for connection to a 230 V ac 50Hz electricity supply. It is
suggested that 3-core round flexible cable of 1.5 sq. mm gauge is used. An isolating
switch should be installed to switch the power to the unit ON & OFF. This allows the
sensor to be easily switched off when not required or for maintenance purposes.
Mark the position of the 65mm diameter locating hole centre taking care to avoid
ceiling joists and other obstructions within the 65mm diameter. Drill a pilot hole to
take the centre shaft of the hole cutter. Use the hole cutter to cut the required hole.
IMPORTANT
Switch off the electricity at the fuse box by removing the relevant
fuse or switching off the circuit breaker before proceeding with the
installation. All fittings should be installed by competent person in
accordance with IEE Wiring Regulations (BS7671)