Technical Manual Presence Detector SCN-P/G360XX.02
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Room reflexion factor
The reflection factor indicates how much of the radiated light is reflected back from the
surroundings. The value 1 means that 100% of the emitted light is reflected back. For dark
floors, a reflection factor of 0.25 is usually suitable.
For example, they measure 400 lux at workplace height and only 100 lux under the ceiling.
These are then converted to 400 lux..
If no TeachIn is carried out, the measured brightness can be corrected with the room reflection
factor. If a TeachIn is carried out, the brightness measurement is automatically corrected. The
reflection factor should not be changed after a teach-in.
The TeachIn procedures for the presence detector with constant light control and without constant
light control differ in the type of execution and the effect of the TeachIn procedure.
In particular with constant light control, the TeachIn procedure should be used to increase the
accuracy of the control.
The procedure for the TeachIn with constant light control (SCN-P360K3.02 and SCN-P360K4.02) is
described in the following chapter, the TeachIn procedure for presence detectors without constant
light control (SCN-P360D3.02 and SCN-P360D4.02) is described in the next but one chapter.
