Chapter 4: Configuration
Settings
Psion VH10 Vehicle-Mount Computer User Manual
80
as a trigger to enable the display panel and keyboard heaters to turn on to prevent condensation build up
on those modules.
The Defog Profile lasts approximately 15 minutes. The other heaters (Main Interface Board, External Con-
nector) are powered OFF. When the Defog Profile completes, the heaters switch to
Sustaining Profile
.
Sustaining Profile
In Sustaining Profile all heaters are powered ON or OFF based on the ambient temperature sensed. There
are two temperature settings used to decide whether each individual module heater turns on or off. These
settings are not user-configurable.
• Turn ON temperature: If the module’s temperature sensor registers below or equal to the “Turn ON”
temperature measured, the heater is turned ON.
• Turn OFF temperature: If the module’s temperature sensor registers above or equal to the “Turn
OFF” temperature, the heater is turned OFF.
Sustaining Profile will be active only once the Defog Profile is completed or if the computer moved into a
stable temperature environment.
The display panel heater is turned OFF only when its sensor reaches 45° C.
Quick Defrost Settings
The individual heaters for the computer modules can be monitored, and the duration of time for them to
remain on during Suspend mode can be configured.
•
In the
Control Panel
, choose the
Quick Defrost
icon.
4.18.1
Settings
•
The Quick Defrost application opens in the
Settings
tab. This option allows you to maintain heat for a
limited time when the computer enters Suspend mode. Once the timeout expires, the heater will stay
off while the computer is in suspend.
4.18.2
Heater Info
•
In the
Quick Defrost
dialog box, open the
Heater Info
tab. This dialog box allows you to monitor the
status of each heater and test the entire system.
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