Operating Manual 6175.4760.02 – 01 3.121
M3SR Series 4100 Control Unit MTC 4/4 (4004)
When at low temperatures (below 10 °C) the display
background illumination is frequently switched on and
off, the durability of the illumination decreases consid-
erably. For operation at low temperatures we therefore
recommend 15 minutes as the shortest time for
screen saver activation.
At temperatures around or below the freezing point the
screen saver should not be used at all (setting OFF), so
that the control unit is constantly kept warm by the back-
ground illumination.
Open an editor to change
the current indicator bright-
ness.
Use the numeric editor or
the knob to change the val-
ue until the desired bright-
ness is reached.
Default: 100 0 to 100
Open an editor to change
the current keyboard bright-
ness.
Use the numeric editor or
the knob to change the val-
ue until the desired bright-
ness is reached.
Default: 100 0 to 100
Open an editor to change
the current display bright-
ness.
Use the numeric editor or
the knob to change the val-
ue until the desired bright-
ness is reached.
Default: 100 0 to 100
Open an editor to change
the current display contrast.
Use the numeric editor or
the knob to change the val-
ue until the desired contrast
is reached.
Default: 100 0 to 100
Softkey Description Possible Values
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