2
Fixing
Only suitably qualified personnel should install this equipment.
1. The COMRE is an extremely sensitive movement detector; it is essential therefore that it be installed on a
rigid surface that will not itself be subject to any movement or vibration.
2. Before isolating the circuits to be switched, check that all lighting is fully operational and that there is no
moving equipment or machinery within the monitored area which may cause nuisance switching.
3. Position the detector where it has a good forward “view” of the area to be controlled. Ideal mounting
location is normally in a corner by the entrance or at one end of a corridor at a height of 2.5 to 3.5m. Do not
mount within 25cm of a fluorescent fitting.
Please note that this product uses microwave technology to detect occupancy and is not recommended
for applications where there are large areas of metal, e.g. metal ceiling or panelling, as unpredictable
sensitivity may result.
Also, microwave presence detection is not completely attenuated by materials such as plasterboard, wood
and glass, so the possibility of unwanted presence detection through office partitions should be considered
when determining detector positioning and sensitivity settings within the intended application.
4 Separate the detector from its back-box by loosening the locking screw so that approximately 3mm of
thread is visible and then twisting the detector off the back-box. Note the arrow symbol moulded into the
bottom of the back-box. The fixing holes allow for mounting on a BESA box or direct to a rigid surface.
Secure the back-box firmly to a rigid surface so that the arrow points into the controlled area.
4a. For semi-recessed mounting, a 76mm (or 89mm in the case of versions with the suffix CFL or THETA) cut-
out is required.
It is recommended that these detectors be ceiling mounted. Where this is not possible, the wall-mounting
kit (COMREWMK - see below) must be used.
COMREWMK Wall-mounting Kit
(Supplied
assembled)
Vertical installation
Use this method of mounting for racking aisle
applications and where adjustment in the
vertical plane will give improved control over
the precise point of entry detection.
Horizontal installation
For general applications where
ceiling mounting is not convenient
and wide angle coverage in the
horizontal plane is desirable.
The COMREWMK can be
screwed to a hard surface or the
lid of a conduit stop-end box.
Exploded view of detector for fixing
into ceiling tiles using COMRESFK.
COMRESFK
Positioning COMRE microwave detectors.
If two COMRE detectors are used at opposite ends of a corridor, facing each other, they must be at least
30m apart.
If two or more COMRE detectors are located in the same area they must be a minimum 5m apart and not
in each other's detection viewing angle.
