53
Brightness sensor
New rocker value =
6,5 x current rocker value (= 295)
Actual value (as displayed after pouring in water)
•
Enter the new rocker value in the configuration menu of the recep
-
tion station. This must always be entered in ml/rocker stroke. The
factory setting is 295 (ml/m
2
) rocker stroke.
7
Brightness sensor
You can use the recorded values of the brightness sensor to control ac-
tuators in central control unit programs of the Homematic WebUI. Shut-
ters can be opened during sunrise and closed during sunset, for exam-
ple. Or you can extend the awning in strong sunlight to be protected from
the sun while being on the terrace.
The recorded brightness of the brightness sensor is displayed via the
WebUI of the Homematic Central Control Unit on a scale from 0-255. The
higher the value, the brighter it is. The value is only for orientation and
not equal to the brightness in lux.
With the chart below you can allocate the brightness value and adjust the
sunshine threshold. The chart shows on the x axis the brightness in lux
(lx) and on the y axis the displayed value of the Homematic Central Con-
trol Unit. Using this division you can see which brightness value (in Lux)
in a scale of 0-255 is displayed by the Homematic Central Control Unit
and use this information for your settings (e.g. sunshine threshold, cen-
tral control unit programs, etc.).
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
1
10
100
1000
10000
di
spl
ay
ed v
al
ue
brightness [lx
]
brightness curve
