Quantrax COMPUTHERM Q20, Руководство по эксплуатации

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9. OPERATION OF BACKLIGHT
By factory default the backlight of the thermostat automatically switches on for
15 seconds after touching any button. Regardless of the automatic backlight,
touching the button you can switch on/off the backlight. If you touch any
button while the backlight is active, the backlight will go out only 10 seconds
after the last button has been touched.
You can modify the automatic backlight of the thermostat, the backlight of the
keys and the backlight brightness as described in Chapter 7 .
10. LOCKING THE CONTROL BUTTONS
You can switch off the control buttons of the thermostat to prevent the settings
from accidental or unauthorized modifications. Touching the button for 2
seconds you can lock and unlock the control buttons. The icon appearing/
disappearing in the right bottom corner of the display indicates the locked/
unlocked state of the control buttons.