Automatic Brightness Control - Honeywell Thor VM1 Reference Manual

Automatic Brightness Control

When the Thor VM1 is equipped with the 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.
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When the ambient light exceeds the threshold specified in Low to medium light level (%), the display backlight is
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automatically increased to a medium level.
When the ambient light exceeds the threshold specified in Medium to high light level (%), the display backlight is
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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
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appropriate lower display backlight level.
By default, the keypad backlight follows the display backlight. When the display backlight is on, the keypad backlight is on.
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