10
Wheel constant menu
To modify the wheel constant, the user programming menu
must be accessed by pressing the
key until the screen
shown on the left (menu 1.0) appears.
Manual setting
The
key can be pressed to insert the value calculated for the
wheel constant directly: use the modification keys to change
and confirm the new value (the value set on the display is
25.40 cm/pulse).
Automatic setting
BRAVO30X is able to calculate the wheel constant automati-
cally, on the basis of the number of pulses received from the
speed sensor, when a distance of known length is travelled.
To carry out automatic the constant setting correctly, proceed
as follows:
1) Prepare the tractor with the tank 50% full
(the test can be carried out with just water ).
2) Drive the tractor to the start of the straight track of known
length and stop.
3) If the length of the track is different from that set, press
and use the modify keys to enter the new value.
4) Press the
key beside the word AUtO and drive along the
track.
5) At the end of the track, stop the tractor and press the
key:
BRAVO30X calculates the wheel constant automatically and
shows it on the display.
N.B.: The test should be carried out on ground of medium
hardness. If distribution is on very soft or very hard ground, the
difference in wheel diameter may lead to a difference in the
wheel speed reading, with a consequent error in calculation of
the distribution.
In this case, the wheel constant setting procedure should be
repeated.
Fig.6
Wheel constant display
Fig.7
Automatic setting of wheel
constant
