Beta RR4T USA 400 User Manual page 11

SLEEP MODE
One minute after the last pulse from the speed sensor has been received, or after the
button was last depressed, the microcontroller switches to a power-saving status named
Sleep Mode. In order to save power, all standard instrument activity is suspended, the
display and the backlighting are turned off (if the vehicle has no battery the backlighting
is automatically turned off as soon as the engine is switched off) and only the clock
remains in operation. The system can go into Sleep Mode regardless of the selected
function.
WAKE UP (from Sleep Mode)
The system wakes up from Sleep Mode whenever:
•The instrument receives a signal from the speed sensor.
•The button is depressed.
As soon as the microcontroller wakes up the following happens:
• The display and the warning lights are checked (all the warning lights come up provid-
ing that power is supplied by the vehicle) for about 2 seconds.
• The selected wheel circumference and number of wheel pulses are displayed for about
2 seconds.
• The last function in use when the system went into Sleep Mode is activated. If the
waking up takes place through the electronic transmission (i.e. without pressing the
button), the instruments immediately switch to the standard operating mode without
checking the display and the warning lights and without showing the selected wheel
circumference and number of wheel pulses.
CHANGING THE WHEEL CIRCUMFERENCE AND THE UNIT
This operation is to be performed by an authorized BETAMOTOR workshop.
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USA