Psion Teklogix user manual Important Operating Instructions, Switching The 8515 On And Off

Chapter 2: Basic Checkout

Important Operating Instructions

2.3Important Operating Instructions

Warning: IT IS CRITICAL that this information be reviewed and that any guidelines applicable to your vehicle-mount be strictly followed.

Backup Battery

The vehicle-mount backup battery provides one hour of memory backup. The capacity is reduced as the operating temperature cools. The table below provides a general outline of battery capacity based on the operating temperature. Charging of the backup battery will occur between 0° C and 40° C.

Note:	If the backup battery temperature is less than 10° C and a brown-out occurs,
	the display backlight will switch off in order to maintain vehicle-mount opera-
	tions. The backlight will switch back on when external power is restored or
	the battery temperature is above 10° C.
Table 2.1 Backup Battery Performance
Temperature		Backup Battery Capacity
-20°C (-4°F)		65%
-10°C (14° F)		80%
0° C (32° F)		close to 90%

Warning: Do not install the 8515 in such a way that the power cable is bent 90 degrees as this may damage the power cable and power cable strain relief.

2.4Switching The 8515 On And Off

•To switch on the 8515, press the [ENTER/ON] key.

Note:	If the 8515 is in suspend state, pressing [ENTER/ON] ‘wakes’ the unit from
	this state. The screen in which you were working before the computer entered
	suspend state is displayed.

To switch off the 8515:

•Press the [BLUE] key, and then press the [ENTER/ON] key.

Turning off the 8515 does not result in a complete reboot; rather, the unit enters a power- saving, “suspend” state. When the 8515 is turned on from suspend state, operation resumes within a few seconds.

8Psion Teklogix 8515 Vehicle-Mount Computer User Manual