Symbol PDT 1100, Руководство по продукции

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2-3
Operating the Terminal
Note: M1 and SF are the default backlight function keys. You may use an
application program to assign the backlight function to different
keys, and to set the automatic shut-off time.
Checking the Battery Voltage Level
To check the battery voltage:
1. Hold down the SF key and press the ENT key. The battery voltage is displayed as
a bar in the LED window.
2. Release the keys to erase the indication.
You can reprogram a different key to display the battery voltage level (instead of SF and
ENT). The battery level shows the terminal voltage of the battery, not how much power is
left. The voltage level may vary 1 to 2 levels depending upon the operation of the PDT 1100.
Refer to
Chapter 5, Battery Charging and Terminal Maintenance for information on
charging batteries.
Scanning Bar Codes
To scan bar codes, power on the terminal, aim the scanning window at the bar code, and
press the
M1, M2, M3
or
M4
key. The LED illuminates green to indicate a successful
decode and the terminal may beep.
• The scan beam must cross every bar and space on the symbol (as in the left bar
code in
Figure 2-2 ).
• If the PDT 1100 fails to read, change the angle by tilting the terminal up or down
slightly, or change the distance of the terminal from the bar code. Hold the terminal
farther for large symbols, and closer for symbols with bars that are close together.
• Position the terminal so that the target bar code comes within 22 inches (56 cm)
from the scanning window. Refer to
Figure 2-2 .
• The scanning technique may differ depending upon the application used.
Battery Voltage