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of the high axle pulses per mile or kilometer
that the speedometer will use to position the
pointer and record the correct mileage.
This is accomplished by indicating to the
speedometer microprocessor, the beginning
and end of a measured mile or kilometer. The
microprocessor will actually count the pulses
that occurred during that mile or kilometer
and compute the required parameters. When
this mode is activated the speedometer will
display “PEndInG “.
This means that the microprocessor is
waiting for the push-button to be pressed
indicating the beginning of the measured
mile or kilometer.
When the push-button is pressed and
released the display will change to “SELF
HI” indicating that the microprocessor is
now counting pulses.
The speed at this point is not important. The
operator may even stop and wait, as long as
power is not turned off and the measured
mile or kilometer is followed as straight as
possible, the operator may not turn around
and go in the opposite direction.
Also for the maximum accuracy, the operator
should not enter any off road parking as
this would deviate from a straight mile or
kilometer measurement.
At the end of the measured mile or kilometer
the operator must press and release the push-
button one more time,
the display will show “CALCInG”
(Calculating)
while the microprocessor calculates the
numbers it needs and will restart. The new
pulses per mile or kilometer will now be in
effect. This feature may be abandoned at
anytime by pressing and holding the push-
button for two seconds. The microprocessor
will reset itself and continue normal
operations. This menu item may also
be stopped by turning off power to the
speedometer.
4. The forth menu item “SELF L ” (Self
calibrate low axle) is used to automatically
calculate the pulses per mile or kilometer for
the low ratio axle.
Not installed in this application.
The implementation and setting are the same
as number 3 “SELF HI” above.
5. The last feature “donE” is used to exit
from this menu. If this display is left on for
four (4) seconds and the push-button is not
pressed, the microprocessor will return to
normal operation with nothing changed.
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