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BACKLIGHT
To turn the Backlight On, press and release the L button (lower/right) button
momentarily (< 2 seconds). The Backlight will remain On for the Duration time set
(a Set U selection) unless you turn it Off during that time.
• The Backlight will come On (even if set OFF) when Alarms strike and remain
On until turned Off or automatically after 10 seconds .
• Pressing and releasing the L button momentarily (< 2 seconds) while the
Backlight is On will turn it Off.
• Depressing the L button for 2 seconds while the Backlight is On, will reset the
timer and extend the On time to the full Duration time set.
• If the L button is depressed for > 60 seconds, the Backlight will be disabled
and not turn On until the button is released then pressed/released again.
• The Backlight will be disabled when there is a Low Battery condition, and be
re enabled once the battery is replaced.
• Extensive use of the Backlight reduces Battery use life.
• Turning the Backlight Off when it is not being used will help extend Battery
use life.
• The Backlight does not operate when the unit is connected to a PC.
