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Introduction
The MLS2500CDR Mid-Range Detector offers high performance, directional presence detection
and contains a photocell to monitor total light levels allowing the light output of dimmable
luminaires to be adjusted to suit the natural light level available. It also contains an infrared port
that can be used both for local control from a hand-held device when in service, and for
CDW12U5/CDH4U5/CDH8U5 system commissioning. Properly installed and connected this is an
SELV device.
Positioning
Position the detector where it has a good "view" of the space to be controlled. An ideal location is in
a corner adjacent to the entrance of a room or at one end of a corridor. Suitable fixing heights are
between 2.5m and 3.5m.
This is an extremely sensitive movement detector. It is therefore essential that it be installed on a
rigid surface that will not itself be subject to any movement or vibration.
Microwaves can penetrate lightly built partitions, glass etc and thus movement in adjacent spaces
may cause spurious triggering if the orientation and sensitivity setting of the detector is not
managed carefully.
This product is not recommended for applications where there are large areas of metal, e.g. metal
ceiling panels or metal flooring, as unpredictable sensitivity may result.
Do not mount within 0.25m of a luminaire.
Fixing
The MLS2500CDR Semi Flush Version - Use a hole saw to cut a 76mm diameter hole into
the ceiling tile. The flush ring is designed to clamp the ceiling tile beween its two halves.
Separate the detector from the under-ceiling half of the flush ring by loosening the locking screw so
that about 3mm of thread is visible and twisting the detector anticlockwise
.
Align the mounting screw holes of the above-ceiling half of the flush ring with those of the backbox
and position both above the hole in the ceiling tile. Now offer the below-ceiling half of the flush ring
to the underside of the ceiling tile and align the mounting screw holes with those above. Note that
the locking screw tab on the under-ceiling half of the flush ring should be directly below the similar
tab on the backbox and the arrow symbol on the inside of the backbox should point into the
controlled area.
Insert the mounting screws through both halves of the flush ring and engage them in the brass
inserts of the backbox. Final adjustments to the orientation of the detector can be made before the
mounting screws are tightened to clinch the ceiling tile between the two halves of the flush ring.
The MLS2500CDRSM Surface Mounted Version - Separate the detector from its backbox by
loosening the locking screw so that about 3mm of thread is visible and then twist the detector
anticlockwise to release it from the backbox.
.
The fixing holes in the backbox allow for mounting onto a BESA box or directly onto a rigid surface.
The arrow symbol on the inside of the backbox should be aligned to point into the controlled area
before the fixing screws are finally tightened.
Connecting
The MLS2500CDR connects to the LCM via an eight core, RJ45 plug terminated, patch lead. All
such patch leads must be segregated from mains wiring to preserve the detector SELV
status that is provided by the LCM design.
Ready-made patch leads in lengths of, 3m, 5m and 10m are available from Ex-Or. (See back page
for Part Numbers.)
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