energy saving switching or dimming presence detector types, lighting control solutions

After introducing the Presence Detectors and the Absence Detectors, via CP Electronics we find out more about the Detector Types – the functionality of the three types of detector that CP Electronics manufactures and we distribute(if there are some presence detectors that are not found on our website, we can still bring them in, depending on the need/requests).

Presence Detector Types

  1. The switching detectors without lux (light) level sensing
    These detectors are suitable for switching lighting in rooms without natural daylight. They can also be used to control heating and ventilation loads.
  2. The switching detectors with lux (light) level sensing
    Ideally suited to switching lighting in rooms there there is a natural daylight.
  3. The dimming detectors
    These presence detectors have a wide range of functionality to enable the lux (light) levels to be maintained while at the same time using the minimum amount of energy. They are ideally suited to applications where maximum efficiency and flexibility are required.

1. The Switching Presence Detectors without Lux Level Sensing

The Presence Detectors without lux level sensing are ideally suited to switch lighting in rooms without any natural light. These particular products can also be used to control heating and ventilation loads. The way these Detectors without Lux Level Sensing work is:

  • If there is No Presence Detected, the lights are switched off;
  • If Presence is Detected, the lights are on.

Example of such Switching Detectors: the SPIR-F(PIR presence detector with time delay function).

2. The Switching Presence Detectors with Lux Level Sensing

This kind of presence detectors have built-in adjustable lux sensors which will keep the lighting switched off if there is sufficient natural light in the area they monitor. All ceiling mounted PRM presence detectors can be set up from ground level using the available simple programming handset. Also, a wide range of user infrared controls are available for increased flexibility. The way these Detectors with Lux Level Sensing work is:

  • When no presence is detected, and there is daylight, the lights are off;
  • When presence is detected and there is sufficient daylight, the lights are off;
  • When presence is detected and there is insufficient daylight, all lights are on;
  • When no presence detected, the lights are off.

Examples of such Switching Presence Detectors: the PDS presence detector(No neutral PIR presence detector with lux level sensing and time delay function), and the PDS/OV(No neutral PIR presence detector with lux level sensing, override switch and time delay function).

3. The Dimming Detectors with Lux Level Sensing

The Direct Dim technology from CP Electronics incorporates the dimming functionality plus a host of additional advanced features into the device. The way the Dimming Presence Detectors work is:

  • When no presence is detected and there is daylight, the lights are off;
  • When presence is detected and there is sufficient daylight, the lights are off;
  • When presence is detected and there is some daylight, the lights are on and dimmed to maintain lux level;
  • When presence is detected and there is insufficient daylight, the dimming detector measures and implements maintained illuminance;
  • When no presence is detected, the lights are off.

In addition to presence or absence detection and the lux level sensing, the dimming detectors are able to provide automatic control of lighting output. A dimming detector can be used to control the light output of lights that are fitted with dimming ballasts. The detector measures the overall light level in the detection area and calculates the correct output for the luminaires, to a maintained illuminance (preset lux level), thereby saving energy by using natural daylight. Many lighting schemes can be ‘over lit’ because of the initial brightness of the new lamps, over compensation for dirt/lamp life, and over-design due to room shape and size. Therefore, the installed lighting often needs to be ‘dimmed’ to achieve the correct illuminance level, and increase gradually to compensate for the anticipated light loss.

Buy online via our website – energy management solutions, the Presence Detectors(CP Electronics Presence Detectors and other occupancy switches).

2 comments

  1. I want to use the motion detector of model SPIR-F to control the fluorescent lights. There are total 13nos. light fitting. 3 nos. T5 fluorescent with individual electronic ballast for each light fitting. Can the model SPIR-F be used to control the lightings, If not, please advise.

  2. we have a micrfilm table illuminated with lights. we need a mechanism to control and adjust light intensity as per pre set lux readings, by dimming or increasing light.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.