Technical data

8.
Settings can be changed at any time; using a screwdriver.
Settings can also be carried out on the light sensor when
using dimmable systems, but this is a relatively
complicated operation compared to the processes
described above.
The red LED indicates the operating range of the sensor,
though this is not relevant for fine adjustment.
While the unit is adjusting, ensure that nothing obstructs
the detection area of the sensor.
If the LED does not light up, position the sensor over a
brighter surface.
Preparations:
Obscure the windows the artificial light level
(illuminance) with a lux meter.
If it is not possible to exclude natural light, measure the
illuminance of the natural light on the working plane
below the light sensor with the artificial light switched
off. If the value lies above the required level of
illuminance, the measurements must be made after
nightfall.
With the artificial light switched on, measure the
illuminance on the working plane.
Setting:
Lighting level too low:
Turn the screw in counter-clockwise direction until the
required level is obtained.
Lighting level too high:
Turn the screw in clockwise direction until the required
level is obtained.
Figure 30: Setting the required value by matching the
sensitivity of the LRL 8101 sensor using a size 0 screwdriver.
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