2.7 Setting the LCD backlight
Use the BACKL submenu to specify the number of
minutes the LCD display backlight remains on before it is
automatically turned off. Press the appropriate side of the
[SCREEN] key to activate the desired pane of the display
screen, then proceed as follows:
NOTE:
For this discussion, it is assumed that the left pane of the
display screen is active. If the right pane is active, replace
the [F1]-[F4] keys designations by the [F5]-[F8] keys.
1. To access the display menu, press the [DISP] key.
2. Press [] and [F2] = BACKL.
3. Use the numeric keys to enter a value from 1 to 60
minutes and press [ENT]. To keep the backlight on
constantly, enter a value of 0 and press [ENT].
The model GF868 will automatically return to the previous
data display screen and the programmed backlight
time-out interval will begin.
If no entries are made from the keypad before the backlight
time-out interval expires, the backlight will automatically
be turned off. At the next keypad entry, the backlight will
be turned on and the specified time-out interval will
begin again.
2.8 Activating sleep mode
During times when the display is not in use, use the SLEEP
submenu to temporarily suspend LCD display activity, which
allows the model GF868 to process data more quickly. Press
the appropriate side of the [SCREEN] key to activate the
desired pane of the display screen, then proceed as follows:
NOTE:
For this discussion, it is assumed that the left pane of the
display screen is active. If the right pane is active, replace
the [F1]-[F4] keys designations by the [F5]-[F8] keys.
1. To access the display menu, press the [DISP] key.
2. Press [] and [F3] = SLEEP. The message
“LCD SLEEP MODE -Press any key. . .” appears.
3. To reactivate the display and return to the previous
data screen, press any key on the keypad. The model
GF868 will automatically return to the previous data
display screen.
NOTE:
With BIG as the selected display format, exiting SLEEP
mode may not erase the sleep mode message and the
data screen will be superimposed on the message. If this
occurs, simply enter the DISP menu and reselect the BIG
format to refresh the screen. See the instructions earlier in
this chapter.
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