User's Manual

Table Of Contents
Chapter 5: Getting To Know The Warrington
Warrington Hand-Held Indicators
66 Warrington Hand-Held Computer User Manual
Figure 5.4 Calibration Screen
Follow the directions on the calibration screen to calibrate the screen.
5.6 Warrington Hand-Held Indicators
The Warrington uses an LED (Light Emitting Diode), onscreen messages and audio tones to
indicate the various conditions of the hand-held, the batteries, the scans and so on.
5.6.1 LEDs
A tri-coloured LED is located on the upper-left side of the unit, above the screen. The green
LED is the battery charge indicator; the yellow LED indicates an application; the blue LED
indicates whether the radio is on or off. When you press [ENTER], the LED flashes green to
indicate that the unit has been powered up. The LED table following outlines the behaviour
of the LED while the unit is docked in a charger.
Keep in mind that the application running on the Warrington can dictate how the LED oper-
ates. Review the documentation provided with your application to determine
LED behaviour.
If the unit is attached to an external power supply, the hand-held’s LED reflects the battery
charge status.
Preliminary Draft