Martel Electronics BetaGauge 3II - Manual (Page 59)

User Preferences 4-4
2. To disable the beep sound, press the function key
corresponding to the menu item Dis.
3. To enable the beep sound, press the function key
corresponding to the menu item Enab.
4. To clear the display and return to the Setup menu,
press the CLR key.
Setting LCD Preferences
The BetaGauge II allows you to set the following LCD
variables:
 Specify the length of time the LCD backlight will
remain illuminated
 Set the LCD contrast
 Perform a contrast recovery procedure to restore
the display.
Setting the Backlight Off Delay Time
The BetaGauge II has an integral backlight so that you
can read the display in poorly-lighted conditions.
However, in order to reduce power consumption, you
can configure the backlight to automatically turn off
after a specified time.
NOTE: Press the starburst symbol on the keypad to
turn the backlight on when ambient lighting is
insufficient.
Procedure
To specify the length of time the backlight will remain
illuminated, do the following:
1. Use the Menu key to locate the Setup menu item
LCD, then press the corresponding function key to
display the LCD menu.