Unitech PT-500 - Manual (Page 6)

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Chapter 2 Installation
2.1 Power On and Off the PT-500
Press the Power Key ? located near the bottom left corner
to turn the terminal on and off. As a safeguard, the unit can
only be turned off by pressing the power key
? for at least 3
seconds.
2.2 Batteries
Main Battery
The PT-500 operates with either a rechargeable nickel
metal-hydride (NiMH) battery pack or three standard AA size
alkaline batteries. When the main battery is running low, the
LCD display will start blinking. If the unit is switched off and
on again, a warning message stating “MAIN BATTERY
LOW” will appear on the LCD display.
NiMH Battery Pack
Battery Installation Procedure:
1.
Turn off the terminal and place it face down.
2. Move the battery compartment latch to the left to
open. Remove the battery cover.
3. Insert the main batteries:
? NiMH battery:
Place the battery with label facing up; firmly
push the whole pack inside the compartment.
? Alkaline batteries: