8
No presence detected, daylight, lights o.
Presence detected, some daylight.
Lights on and dimmed to maintain a minimum level.
No presence detected, lights o.
Presence detected, sucient daylight, lights o.
Presence detected, insucient daylight.
Detector measures and implements maintained illuminance.
The detector measures the overall light level in the detection area and calculates the correct output for the luminaires,
to maintain above the required minimum illuminance level (maintained illuminance).
A dimming detector can be used to control the light output of luminaires that are tted with dimming drivers.
The detector measures the overall light level in the detection area and regulates the output of the luminaires, to maintain a
minimum required level for the area and saving energy when natural daylight can be used to replace / supplement articial
lighting (daylight harvesting).
Technology Guide
Maintained Illuminance
Maintained illuminance in ‘presence detected’ and ‘no presence detected’ scenarios