System Maintenance - Omron NT31 Operation Manuals

System Maintenance

6-11 System Maintenance
Item
I/O Settings
Calendar Check
PT Settings
Display history record
Alarm history record
Screen data check
Device check Checking of the I/O functions of the NT31/NT31C.
I/O I/O
check
I/F check
6-11-1 I/O Settings
Contrast Adjustment
212
The NT31/NT31C has the following maintenance and check functions.
Adjustment of display panel contrast and brightness of the backlight.
Display and setting of the time data of the NT31/NT31C clock function.
Direct connection setting of the screen data in the NT31/NT31C and display of the
setting statuses of the serial ports.
Display and printing of display history record data.
Display and printing of alarm history record data.
Display of each screen stored in the NT31/NT31C.
Checking of the communication functions of the NT31/NT31C.
This section describes how to use these functions.
This function is used to adjust the contrast of the display panel and the brightness
of the backlight.
The NT31/NT31C allows the contrast to be adjusted in 100 steps. The "CON-
TRAST ADJUST" screen enables you to make the adjustment while actually
checking the contrast on the screen. Once the contrast has been set, it remains in
effect even if the power is turned OFF or the NT31/NT31C is reset (and even if the
voltage of the built-in battery becomes low).
Adjust the contrast of the display panel by following the menu operation from the
System Menu shown below.
Function
Select "Maintenance Mode".
Select "I/O Settings".
Section 6-11
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