PIR

The PIR (Passive Infra Red) series of presence detector switches are designed to provide automatic control of lighting. They detect movement using a PIR sensor and turn the load on. When an area is no longer occupied the load will switch off after an adjustable time out period. An adjustable internal light sensor provides additional energy saving in lighting applications. When an area is occupied lighting is only switched on when the level of natural light is below a preset level. When the unit is first powered up the PIR sensor will always detect immediately regardless of whether the room is occupied. An optional IR sensor in the unit allows the lux settings to be changed and the sensor to be overridden using a remote control handset (part no: UHS).

 

EBDSPIR (I/R) Ceiling Presence Detector

WIRING & FIXING

Wire the product as in the diagram ("Connections").

To switch from more than one position simply wire two or more units in parallel.

The detector should be sited so that the occupants of the room fall inside the detection pattern shown overleaf, at a recommended height of 2.8m on the ceiling. Note that the lower the sensor is installed the smaller the detection range will be, subject to the parameters shown on the diagram.

  • Avoid direct sunlight entering the sensor.
  • Do not site within 1m of forced air heating or ventilation. 
  • Do not site within 1m of any lighting.
  • Do not fix to a vibrating surface.

To flush mount:

  • Cut a 64mm hole in the ceiling.
  • Insert the mounting clip into the hole and carefully push the two fixings in the arms downwards until they grip firmly to the ceiling.
  • Detach the mains cover, connect (see below) and replace the cover.
  • Loosely push the unit into the clip and setup as instructed below.
  • Push the unit fully into the mounting clip.

To surface mount:

  • Screw the optional surface mounting straight to the ceiling or to a BESA box.
  • Detach the mains cover and connect (see below).
  • Loosely push the unit into the clip and setup as instructed below.
  • Do not re-fit the mains cover, push the unit into the back box and secure with the screw.

INSTALLATION

Warning. This device works at mains potential. Be sure to take care when working with electricity.

  1. Make sure the load is connected and in working order.
  2. Isolate the mains supply to the circuit at the main consumer unit.
  3. Connect the controller via the terminal block. Live supply to the L terminal, Neutral to the N terminal and the load to the LIVE OUT terminal.
  4. Set the LUX level to maximum and the time to minimum (see diagram above)
  5. Push on the mains cover (flush only) and loosely mount the unit.
  6. Switch the mains supply back on at the distribution board.
  7. The load should come on immediately.
  8. Vacate the room or remain very still and wait for the load to switch off (should take no more than 2 minutes).
  9. Check that the load switches on when movement is detected.
  10. To set the final LUX level wait until the level of natural daylight is just enough that lighting is required. Starting with the LUX control fully clockwise (at minimum), very slowly turn the control anti-clockwise until the lights come on. Note that when the LUX control is at maximum then the lights will always come on with occupancy. IR
    version only: LUX setting can be done using the lux up and lux down buttons.
  11. Set the time required.
  12. Push the unit fully into the mounting clip or back box.
  13. IR version only: the override on button turns the unit on permanently; the override off button turns the unit off permanently; the cancel button cancels the overrides. When an override is selected an LED will flash inside the unit.