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4.1.8
Brightness
Your negative pressure unit automatically adjusts the brightness of the screen to match the pre-
vailing brightness of the room. If the preset brightness does not meet your requirements, you
can adjust the brightness as follows.
The screen reacts with a delay of two seconds.
4.1.9
Day/Night Mode
The negative pressure unit has a day/night mode, the device adjusts automatically to the envi-
ronmental lighting.
During battery operation
During battery operation the screen turns black after 5 minutes. Under low ambient light condi-
tions display has dark background illumination.
During mains operation
If the device is connected to the mains power and the room brightness is low, the background
screen in the display becomes dark.
• Touch the
key to reach the submenu.
• Now select the field "Brightness". The field is marked in dark
blue and the
and
side.
• Now set the desired value with the
• To save the settings touch the
keys are shown on the right hand
and
keys.
key.
21
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