Omron Programmable Terminals NT31 NT31C - Manual (Page 203)

6-11 Section System Maintenance
193
Setting Using Brightness and Contrast Adjustment Screen
Display screen number 9030 using either a touch switch with switch screen func-
tion, or by specifying the display screen in the PT status control area.
Adjust the contrast with the touch switches in
the right half of the screen.
[ ]: Increase 10 steps
[ Y]: Increase 1 step
[ B]: Decrease 1 step
[ ]: Decrease 10 steps
Press Quit.
The contrast is set, and the NT31/NT31C
returns to the previous screen.
The NT31/NT31C allows the brightness of the backlight to be adjusted in 3
steps. The BRIGHTNESS ADJUST screen enables you to make the adjustment
while actually checking the brightness on the screen. The length of hours the
backlight lasts in a normal temperature are as follows.
High contrast: 10000 hours
Low, middle contrast: 25000 hours
Backlight Brightness
Adjustment