Screen Blanking

Screen blanking allows the Thor VM1 display to automatically be turned off whenever the vehicle is in motion.

Use the Screen on delay to specify the period of time in ms (milliseconds) between when the vehicle stops and the Thor VM1 screen turns on. For example, use the delay if the switch end of the cable is attached to the vehicle’s accelerator pedal. Release of the accelerator may mean the truck is coasting to a stop rather than stationary. Configure the delay to allow time for the vehicle to coast to a stop. The default value is 1000 ms.

Specify the COM Port to which the screen blanking cable is attached. If a COM port is in use by another application, that COM port is grayed out and cannot be selected for screen blanking.

!Do not enable Screen Blanking until the cable is properly connected to the specified COM port.

To disable screen blanking, uncheck the Enable screen blanking checkbox.

See Screen Blanking (page 4-44)for hardware requirements.

Refer to the wiring instructions, including appropriate cautions and warnings, in the Connect Power (page 4-28)sec- tion.

Automatic Brightness Control

When the Thor VM1 is equipped with an outdoor display, automatic brightness control can be enabled. When enabled, display brightness is based on ambient light detected by the ambient light sensor, located near the top right of the display. The default is disabled. To enable, check the Enable automatic brightness control checkbox and specify the thresholds for display backlight transition.

When enabled, the thresholds can be entered for display brightness transitions.

•When a low level of ambient light is detected, the display backlight is set to low level.

•When the ambient light exceeds the threshold specified in Low to medium light level (%), the display backlight is automatically increased to a medium level.

•When the ambient light exceeds the threshold specified in Medium to high light level (%), the display backlight is automatically increased to a high level.

•Likewise if the Thor VM1 is returned to a lower ambient light area, the display backlight automatically transitions to the appropriate lower display backlight level.

Current Level

Current levels of LCD brightness and ambient light are displayed as a percentage. Ambient light level is detected by the light sensor, located near the top right of the display.

Defroster Control

Enable the touch screen defroster, if installed, and set the trip point. Settings are ignored if the defroster is not installed.

If a defroster is installed, the defroster can be switched between the Enabled and Disabled states using the check box. The default is Disabled (unchecked).

Specify the Defroster trip point. The default trip point is 40ºC/104ºF.

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