Section 13 — General Setup Options
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Switch Backlight On/Off
The backlight consumes a relatively high level of power and will
automatically switch off after a timeout period.
To switch the backlight on or off:
1. Press Options on the main menu.
2. Press LCD Contrast / Backlight / Sound.
3. Press and to adjust the backlight brightness or switch it
off > Press .
If the backlight level is set to High, the LCD backlight level will be reduced
automatically to the Low setting ten seconds before it times out (as
configured in Setting Backlight Timeout). This advance notice enables
you to press any key (e.g. ALT) to return the backlight to its previous
level.
Estimate Remaining Operating Time
Your instrument can estimate its operating time based on the amount of
current remaining in the battery and the average current usage. The
true operating time before the battery runs flat will depend on how you
use the instrument. To check the estimated operating time remaining:
1. Press Options on the main menu.
2. Press Battery Pwr Mngmnt.
NOTE: The battery State percentage value and Time Left figure on
the Battery and Power Management screen will NOT attain
maximum accuracy until the battery has completed at least one
learn cycle. This consists of using your instrument until the battery
discharges to a near empty state (below 7 V, when a battery
warning icon displays in the middle of the LCD screen, then
performing a complete charge cycle (a full three hour charge
without interruption). Until this sequence is complete, the 0% and
100% indications may be inaccurate by +/-10%.
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