
MLS2000PF - MLS Digital Detector with photocell
Only suitably qualified personnel should install this equipment.
MLS Digital Detectors are the high-performance, communicating, presence detectors at the heart of the advanced
lighting management system known as The Ex-Or MLS Digital. This detector is equipped with a passive photocell
designed to hold lights off when areas become occupied if the daylight contribution is high and to switch lights on in
occupied areas as the daylight contribution falls. Please note that the photocell will not switch lights off in occupied
areas.
Fixing
The detector is suitable for flush-mounting in a suspended ceiling tile, maximum 54mm thick with a minimum
clearance of 125mm between the front surface of the tile and the hard ceiling behind. It should be mounted in the
centre of the group of luminaires to be controlled. Cut a 50mm diameter (64mm if using an FR64 flush ring or
PB64 plasterboard fixing kit) circular hole in the tile, feed the flying leads and detector through the hole and secure
in position with the locking ring. Twist the locking ring to release the detector if necessary.
Note: Do not position within 25cm of a luminaire.
Connection
The detector is supplied with two flying leads. The mains lead should be taken into the nearest luminaire from
where it will pick up its 230V supply. Control of a group of luminaires is achieved by connecting all the luminaires
in a group (typically four) in parallel with the switched live output of the detector. The MLS Digital Bus must be
connected to the MLS Digital Bus wiring network to enable communication with the rest of the system. An MLS
Bus Power Supply is required for each network of up to 200 MLS Digital Detectors. Please refer to Bus Power
Supply installation instructions prior to commencement of any bus wiring.
2
It is imperative that the MLS bus is wired with the correct type of cable; normally it should be 1.5mm unscreened
twisted pair. Please read Application Note AN4001 for more details.
Do not connect mains to the MLS bus.
Commissioning
Detectors are supplied factory pre-set which ensures the lighting will switch on automatically as soon as power is
applied. Final commissioning of the detectors, including assigning to zones, requires the use of the QuickSet Pro
Programmer.
Commissioning Detectors using the QuickSet Pro Programmer
It is important that the Programmer be held perpendicular between 0.5m and 2m from the sensor.
1. Switch on by pressing any button (and unlock with top left rectangular button).
2. Point the programmer at detector and press the DOWNLOAD button. The programmer will confirm the
product’s identity and call up the correct menu of parameters and their current settings.
3. Use a combination of UP, DOWN, FORWARD and BACK buttons to navigate the parameter menu, selecting
options for each shown.
4. When options for all parameters have been selected, point the programmer at the detector and press the
UPLOAD button. The luminaire(s) will switch off briefly during the programming process.
5. After a short period of inactivity (default 5 minutes), the programmer hibernates retaining the most recent
settings.