horsch DrillManager - Page 37

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Conguration 3
Seed calibration
This menu can be used to run a seed calibration
(see seed calibration).
Prime rotor time
The rotor rotates as long as
speci󰘰ed under prime rotor time.
A setting of 5 seconds is enough to e.g. place
seed in 󰘰eld corners.
If the computer receives a speed signal during
this period, the computer will take over the
control.
Calibration factor
The calibration factor value for seed and fertiliser
is used to save weight determined in the seed
calibration in gram per revolution.
The calibration factor can also be directly entered
as calibration value - see "Seed calibration direct
input".
Calibration direct input
If a seed, fertiliser or liquid fertiliser is repetitively
used, only the 󰘰rst calibration must be performed,
whereby the calibration factor and the associated
rotor should be recorded.
When using the same seed, fertiliser or liquid
fertiliser again, the value can be entered directly..
Direct entry of the calibration value
should only be used for absolutely
identical seeds or fertilisers. The same
rotor should also be installed, as
otherwise a wrong quantity will be
placed.
If the machine is equipped with a liquid fertiliser
system, the calibration factor of approx.
600 pulses per litre must be entered here.
Due to the consistency di󰘯erences in liquid
fertilisers the value needs to be matched to the
actual placement quantity.
For this purpose use the first measurable
placement deviations from the nominal quantity
to calculate the percentage and change the
calibration factor by the same percentage.
The deviation is displayed in the menu bar
"performance data" (second work page with
key "i") in the calculated amount in litres to the
actually metered quantity.
If the displayed quantity is lower than that of the
actually metered quantity the calibration value
must be reduced and vice versa.