Psion Teklogix 8515 User Manual

Chapter 2: Basic Checkout
Important Operating Instructions

Psion Teklogix 8515 Vehicle-Mount Computer User Manual

2.3

Important Operating Instructions

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.

2.4

Switching The 8515 On And Off

•

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

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.

Warning: IT IS CRITICAL that this information be reviewed and that any guidelines

applicable to your vehicle-mount be strictly followed.

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

65%

-10

C (14

80%

C (32

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.

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.