OPERATION
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2.8 Backlight
The LCD display is equipped with an LED backlight to assist in
reading the display under poor lighting conditions. In manual
mode, the backlight can be turned on by pressing and holding
the
[N/-]
key for one second in normal operation. The backlight
can be turned off by pressing
[N/-]
a second time. If the
[N/-]
key is not pressed, the backlight will be turned off automatically
after a pre-programmed time-out period to save power.
In automatic mode, the ambient light is sensed and the backlight
will be turned on automatically if the ambient light is below a
threshold level. The backlight will be turned off automatically
when the ambient light exceeds the threshold level.
(See Section 8.1 for instructions on how to set the threshold
level.)
Note:
The LED backlight consumes about 20-30% of the total
average current, when the instrument is idle or not taking a
measurement.
