PlanoSpot 360 DALI-2 S DE manual
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8
Light measurement
8.1
Light measurement
The mixed light measurement measures artificial light and daylight. It provides consistent
measurement results regardless of the light source. The artificial light from fluorescent lamps
and LEDs is detected correctly despite the discrete spectrum. The light measurement device is
located under the lens and receives diffuse light as a result.
The PlanoSpot 360 DALI-2 S has 3 light measurements:
The light guide is designed in such a way that the light measurement covers an opening angle
of approx. ± 40° below the PlanoSpot 360 DALI-2 S and to the side.
The central light measurement detects the brightness directly below the "Middle brightness
value" detector (A), while the other two light measurements detect the brightness close to the
window ("Window brightness value"; B) or in the interior ("Interior brightness value"; C). The
installation location is the reference point for the lighting level.
The measured brightness value can be adapted to the conditions in a room with the room
correction factor. The brightness measurement transmitted for instance 2 to 5 is thus the
measured brightness value / room correction factor.
See also the description of the room correction factor on page 14.
The measurement range of the light measurement is around 10 to 10,000 lux.
