Operation Quantron E
47
4
4.5.1
Speed calibration
The speed calibration is the basic requirement for an exact spreading result. Fac-
tors such as tyre size, a different tractor, all-wheel drive ON or OFF, slippage be-
tween tyres and ground, ground characteristics and tyre pressure influence the
speed measurement and therefore the spreading result.
Preparing for speed calibration:
The exact calculation of the number of speed impulses over 100 m is very impor-
tant for precise discharge of the weight of fertiliser.
Run the calibration in the field. This reduces the influence of the ground cha-
racteristics on the calibration result.
Measure a
100 m
reference distance as accurately as possible.
Engage four-wheel drive.
No more than half fill the fertiliser spreader.
Opening speed settings:
In the control unit Quantron E, up to
4 different profiles
for type and number of
impulses can be saved. You give the profiles names (e. g. tractor name).
Before spreading, check that the correct profile is open in the control unit.
Figure 4.21:
Tractor (km/h) menu
[1] Tractor type
[2] Transducer display for the speed signal
[3] Display of number of impulses over 100 m
[4] Calibrate tractor submenu
[5] Icons for memory locations of profiles 1 to 4
1.
Switch from the
Hopper configuration
menu to the
Tractor (km/h)
menu.
The display values for name, origin and number of impulses refers to the
profile highlighted in black.
2.
Push the function button (F1-F4) under the saving location symbol to switch
the tractor profile.
Summary of Contents for quantron e
Page 8: ...User instructions 1 6...
