NARDA 8718B, Руководство пользователя

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75 Chapter 12 Back Light and Battery Status
12
Back Light and Battery Status
Application for Back Light
The liquid crystal display (LCD) on the Model 8718B Meter
provides high contrast in bright outdoor lite. However, LCD’s do
not generate any light and can be difficult to read in low light
conditions. The LCD on the 8718B contains a high brightness
back light that can be turned on whenever it is needed.
The only disadvantage to using the back light is that it consumes
much more energy than the meter circuits and significantly
reduces operating time between battery charges.
Controlling the Back Light
To turn the back light on or off...
1. Access the menu system by pressing the function key
that corresponds to the legend below MENU on the
bottom line of the display.
2. Press 4 to select BAT/LITE from the First Menu Screen .
A new screen will appear that indicates both battery
status and back light status.
3. Press F3 ( ON ) or F4 ( OFF ) to turn the back light on or
off as required.
4. Press the ESC key to return to the First Menu Screen .
Press it again to return to the measurements screen.
B A T T E R Y G H T
L E V E L = 9 0 % l I S O F F
T I M E = 1 8 H R S l O N O F F
F1 F2 F3 F4
l L I