Page 9
iii.
If there is insufficient room to mount the detector on the frame then it can be fixed to the door or
window instead, with the magnet fixed to the frame alongside it. For reliable operation, the front
face of the magnet should be no more than 10mm below the front face of the detector – in some
cases it may be necessary to place packing behind the magnet or detector to achieve this.
Illustration 9
iv.
Remove and retain the screw from the bottom of the detector (Illustration 9). Using a small drill or
screw driver to make two fixing holes in the backplate as a template, mark and drill two fixing
holes. Fix the backplate in position using the screws provided.
v.
Locate the detector on the backplate and replace the retaining screw at the base of the unit.
vi.
Align the magnet as described above and fix in position with the two screws provided.
Note:
If you are fitting the unit to a uPVC door or window, you may wish to use STRONG double
sided tape to fix both the detector and magnet in position.
b)
Wireless Movement Detector/PIR
i.
Remove and retain the screw from the bottom of the PIR and lift off the cover.
Illustration 10
ii.
Remove batteries from PIR. Carefully remove the electronic module from its retaining clips,
ensuring that you handle the circuit board by the edge only; in particular do not touch the
pyroelectric sensor (Illustration 10).
Illustration 11
Mounting
Holes
Pyroelectric
Sensor
Retaining clips
Terminals for connecting to
Extension sensor.
Note:
The LS1601 is able to connect an external sensor.