Theben 201 9 290, Installation Manual, Page: 9 / 22

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4.3 Lighting Settings (recommended)
Brightness value
Setting the desired brightness (Lux) scale
● Transfer zones (non-working area) approx. 2
● Bright transer zones approx. 3
● Deactivation of brightness measurement «on»
Depending on the installation location, natural light intensity, furniture, re-
flection characteristics of the room and the furniture, an adjustment of the
setting by 1 or 2 steps may be necessary.
If setting values for brightness <= 2.5
and switch-off delay time light <= 2 min:
faster response to changes in actual brightness when in operating mode
switching of one lighting row.
Brightness difference (Outlets Lights A, B active)
A detector can switch or control up to two lighting rows. The lighting row
nearest the window (know as Output A) usually requires less light.
● homogenous light relationship +20%
● large brightness differences +40%
Switch-off delay time
For settings between 2–15 min the switch-off delay time has a self-learning
feature which varies within this range. Settings <2 min or >15 min remain
constant.
● Transfer zones approx. 5 min