User's Manual

Table Of Contents
Quick Reference Guide 17
Operating the VC6000 series
System Indication LED
The system indication LED is located inside the Reset Button.
The System Indication LED indicates the following states:
Controlling Screen Brightness
There are five levels of screen brightness (including turning off).
To adjust the brightness of the screen, press the Brightness down button
to decrease the brightness or the Brightness up button to increase the
brightness. The VC6000 series automatically returns to normal operation
after six seconds if the Brightness up/down key is not pressed.
Controlling Keypad Illumination
There are five levels of Keypad Illumination. To adjust the Keypad
Illumination:
1. Press the Ctrl key to lock in down position.
2. Press the Brightness up/down key to increase/decrease the keypad
illumination. The VC6000 series automatically returns to normal
operation after six seconds if the up/down key is not pressed.
3. Press the Ctrl key to unlock in up position.
LED State Indication
Off Normal operation
Fast flashing amber • Critical power event. Input power is out of
operating range. The VC6000 series may turn
off - save your entries.
• Vehicle engine start - no action is required.
• Cold reset is active - no action is required.
Slowly flashing amber Critical temperature event. Ambient temperature
is out of operating range -4 °F to 140 °F (-20 °C
to 60 °C). The VC6000 series may turn off.