2
Digital Gold Series Detector with Regulating Photocell
Please note that UltraLite versions of these detectors (suffix CWL7) do not offer MLS functionality
and cannot be connected using MLS cable.
Only suitably qualified personnel should install this equipment.
The Digital Gold is a high-performance, communicating presence detector which can be used as part of a full
Ex-Or MLS Digital Managed Lighting System or as a stand-alone unit. The MLS2421D detector is equipped
with a regulating photocell to control digital DSI or DALI ballasts (when using the detector’s Digital Output)
and a volt-free output for control of non-dimmable lighting loads. Digital Gold incorporates Ex-Or’s OneSwitch
Dimming, local manual operation of any controlled lighting load.
Location
This 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 movement or vibration.
Please note that this detector is not recommended for applications where there are large surface areas of
metal, e.g. metal ceiling or floor tiles, as unpredictable sensitivity may result.
The units are graded according to four variations in operating frequency. Each type can be identified by
different colour-coding on the detector label and carton. For reliable operation it is essential that units of the
same colour code do not occupy adjacent positions in open-plan areas or in adjoining rooms (see below).
Yellow
Blue
Red
Green
Red
Green
Yellow
Blue
Red
Green
Yellow
Blue
Yellow
Green
Green
Yellow
Green
Yellow
Yellow
Blue
Red
Green
Red
Green
Yellow
Blue
Red
Green
Yellow
Blue
Blue
Red
Red
Blue
Red
Blue
Yellow
Blue
Red
Green
Red
Green
Yellow
Blue
Red
Green
Yellow
Blue
Yellow
Green
Green
Yellow
Green
Yellow
Yellow
Blue
Red
Green
Red
Green
Yellow
Blue
Red
Green
Yellow
Blue
Blue
Red
Red
Blue
Red
Blue
Note:
Should you need to order additional detectors for an existing installation
and need specific colour-coded detectors, please add the following suffixes to
the part number: Y = Yellow, B= Blue, G= Green, R = Red. (There is normally
no need to specify the colour codes as orders are dispatched with a suitable
colour-code mix.)
Fixing
MLS2421DSM/DALISM - The housing may be secured to a hard surface or a BESA box. The unit fits into
the housing with a simple bayonet action.
MLS2421DF/DALIF - Depth required behind ceiling: 62mm from front flange plus an allowance for the
minimum bend radius of the cable. Sinking box fits into a 89mm diameter hole in ceiling tile or plasterboard
ceiling. To avoid damage to ceiling tile, do not overtighten. No access above the ceiling is necessary.
MLS2421DALIFXAA - The sensor can be secured to the ceiling using the screw provided.
Please note:
Do not position this product on a pitch narrower than 5m.
Do not mount within 0.25m of a luminaire.
