3
Installation
The unit is suitable for connection to a 240 V ac 50Hz
electricity supply. It is suggested that 3-core round
flexible cable of 1sq.mm gauge is used. An internal
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.
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.
Open the unit by gently prying the “ears” on each side
of the unit. See diagram A. This can be done without a
tool, but if you prefer use a flat blade screwdriver, but
be careful not to damage the clips. They should release
easily. The front cover is hinged at the top, the front
cover will swing open upwards.
Using the unit as a template, drill the holes. Insert the
wall plugs into the holes. See diagram B.
It is recommended that the grommet is pierced with a
screwdriver to ensure a better seal.
Fix the unit to its mounting surface. Do not overtighten
the mounting screws as this could damage the unit. If
using a power screwdriver, use the lowest torque setting.
Remove the cable clamp. See diagram C
Pierce and pass the cables through the grommet. We
recommend you use a screwdriver to pierce the
grommet as this will give a better seal.
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