WEED-IT: Full coverage spraying and stepless nozzle control
WEED-IT introduces a new set of features that enables WEED-IT Quadro users to use their system for full coverage spraying. Another feature is stepless nozzle control technology to continuously apply the optimal application rate.
With the latest software release available as of now, the system is also able to spray in crop as a regular sprayer, utilising its Pulse Width Modulation (PWM) features.
Spot spraying and full coverage spraying
This means that users now have the ability to use WEED-IT Quadro (see video below) for both spot spraying – targeting all weeds on fallow ground – and for in crop – full coverage – spraying. This allows the operator to accurately apply post-emergent crop protection chemicals on a per-nozzle basis with speed and turn compensation.
Another advantage is that the PWM nozzle control allows precise application of any application rate without having to swap/turn nozzle bodies manually any longer. Thus, saving time and increasing both the sprayer and treatment efficiency, says WEED-IT.
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When decreasing the driving speed, the flow regulator has to decrease the flow in steps...
... but WEED-IT has managed to have the PWM nozzle control correct stepless for the time the flow regulator requires to regulate. - Photos: WEED-IT
Stepless nozzle control
WEED-IT states it is the first in the world to introduce continuous variable transmission (cvt) technology for continuous variation of PWM nozzle control. “Every sprayer operator knows that when accelerating from the headland, the application rate is suboptimal (too low) because the flow regulator is increasing the flow in steps. When decreasing the driving speed, the flow regulator has to decrease the flow in steps. We have now managed, partly thanks to the standard 50 Hz high frequency, to have the PWM nozzle control correct stepless for the time the flow regulator requires to regulate,” says the Dutch company.
“The result: with WEED-IT stepless nozzle control technology, the application rate is always optimal and on target regardless of acceleration and deceleration from and towards headlands.”
Compatible with older systems
This software release, version V4.12 for terminals and version V3.42 for sensors, is standard on new WEED-IT Quadro systems with immediate effect and can be retrofitted to terminals with version V4.10 and higher and Quadro sensors with software version V3.40 and higher.
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