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To be done before spreading
70
Dosing setting
The dosing setting to be set can be:
•
Read from the relevant spreading chart if a lower application rate
is to be used whereby the fine application kit is used and
Fine
application kit
is indicated under the heading in the spreading
chart:
yes
.
Determine an application rate not given as described in para-
graph »Discharge point«from page 67.
•
Calculate using the relevant spreading chart if a lower application
rate is to be used whereby the fine application kit is indeed used
and
Fine application kit
is indicated under the heading in the
spreading chart:
no
.
Calculation
As 2 of the 3 dosing openings are closed the flowrate of the remaining
dosing opening should be three times as much in order to obtain an
even application rate.
Read the
Dosing Setting, Discharge Point and Flowrate
from the
spreading chart. Calculate the flowrate with the formula given
below as required.
If the selected application rate or driving speed is not indicated in the
spreading chart the required flowrate can also be calculated as
follows:
Use the letter given for setting the discharge point in the line of the
spreading chart that most closely resembling the calculated flowrate.
Multiply the flowrate (given in the
lbs/min
column or calculated)
with a factor of 3.
Select the closest flowrate for the whole spreader in the
lbs/min
column.
Read off the relevant dosing setting or estimate it as closely as
possible.
N
OTE
Do not use the discharge point indicated
there
.
Setting the spreader
Set the given discharge point as described
in paragraph »Discharge point« on page 67.
Enter the dosing setting in the control system and determine the
relevant flowrate by means of a manual calibration test, as
described in the following paragraph.
See also the example in paragraph »Constant application rate« on
page 68.
500
flowrate required (lbs/min) =
Working width (ft) x Driving speed (mph) x Application rate (lbs/acre)
Summary of Contents for Exacta-TL-GEOSPREAD GS3
Page 6: ...Preface 6 ...
Page 166: ...Notes 166 Notes ...