ARAG IBX100 4679004, Установка - Использование - Обслуживание

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JOB FUNCTIONS
15.3.3 Nozzles selection
Enables / disables automatic nozzle selection on all spraying points (DEFAULT: ON) .
AUTOMATIC NOZZLE SELECTION
Upon spraying starting (main control set to ON), the VT automatically
checks the flowrates: if the required conditions are not met, the VT
will signal it through the screen shown in
Fig. 102
.
MANUAL NOZZLE SELECTION
Allows to select manually nozzles in use on the spraying points.
The number of nozzles displayed will vary according to the spraying point setting
(
chap . 10 ).
Press the button next to the nozzle to enable or disable the corresponding nozzle.
"HOME" SCREEN
AUTOMATIC
selection
Fig. 100
"HOME" SCREEN
MANUAL
selection
Fig. 101
Fig. 102
Correct setting
Wrong setting
HOW THE AUTOMATIC NOZZLE SELECTION WORKS (SELETRON SYSTEM)
In a traditional system, the farming machine speed limits depend on the minimum and maximum pressure of the nozzle in use and on the desired spray rate.
For instance, if we were spraying 100 l/ha with a violet evenfan nozzle ISO110025, the minimum operating speed shall be 6.9 km/h (corresponding to a pressure of 1 bar)
while maximum speed shall be 13.9 Km/h (corresponding to a pressure of 4 bars).
This operation field can be restrictive for the features of both crop to be treated and machine.
Operation field of possible combinations of ISO11002 and ISO110025 nozzles
When automatic nozzle selection is enabled, the VT (using Seletron devices) will enable the nozzle, or combination of nozzles, according to the set spray rate and
driving speed. This system allows to widen the machine operating range, i.e. in the above instance, using ISO11002 yellow (
A
) and ISO110025 violet (
B
) nozzles, that
work correctly at a speed from 5.5 km/h to 24.9 km/h.
Nozzle A
Nozzle B
Fig. 103 Speed (km/h)
Fig. 104
According to the set data and those detected by the sensors, the monitor will select the suitable nozzle configuration, constantly checking that:
- spraying pressure remains within the range selected for each single nozzle at all times
- if more than one nozzle configuration is possible, the configuration where working pressure is as close as possible to the working range of the nozzle is selected
- nozzle replacement is significantly reduced
When setting a treatment, make sure to couple compatible nozzles.
For example:
• Compatible nozzles : the rate at 1 bar of the ISO025 nozzle is LOWER than the rate at 5 bars of the ISO02 nozzle (
Fig. 105
).
• NON compatible nozzles:
the rate at 1 bar of the ISO05 nozzle is HIGHER than the rate at 5 bars of the ISO02 nozzle (
Fig. 106
).
In the same way, the overall rate of both nozzles at MINIMUM pressure shall be LOWER than the rate of the high rate nozzle at MAXIMUM pressure.
OK
Fig. 105
NO
Fig. 106
Quits without confirming the
changes
Saves the changes
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Quit
Confirm
Goes back to previous menu,
or scrolls the pages of a menu
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Scrolls the pages of a menu
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