Honeywell Thor VM3 User Manual page 183

Automatic Brightness Control
When the Thor VM3 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 dis-
abled. 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.
•
•
•
•
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 dis-
play.
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 Dis-
abled states using the check box. The default is Disabled (unchecked).
Specify the Defroster trip point. The default trip point is 40ºC/104ºF.
Thor VM3 with Microsoft Windows 7 or Windows Embedded Standard 7 User Guide
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 VM3 is returned to a lower ambient light area, the display
backlight automatically transitions to the appropriate lower display backlight level.
173