Siemens UL 1066 Operating Instructions Manual page 107

"Contrast setting" mode
In this mode, the contrast of the display can be adjusted.
To access "Contrast setting" mode, press the following 
button(s):
In "Autoscroll" mode
Screens displayed in "Contrast setting" mode
Screen 1
Contrast Adjust
0 50 100 %
+ - Enter
Button functions in "Contrast setting" mode
+
"Tripping info" screen
This mode will automatically be activated as soon as a trip occurs, provided an external 24 V DC voltage supply has been connected.
Screens displayed in "Tripping info" mode
1)
Measurement function
Button functions in "Tripping info" mode
or
+


Contrast setting
The longer the bar, the higher
the contrast
Increases the contrast
Reduces the contrast
Accept the contrast,
switch to the "Autoscroll" mode
Tripping type
Phase affected
XX may be:
1)
L, S, I, G, N, M
YY may be:
L1, L2, L3,
Display of maintenance
instructions
If pressed again:
Switches back to "Tripping info"
mode
Press CLEAR button
Switches to "Autoscroll" mode
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