Operating job computer sprayer on the
field
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990267EN ind. A
Button assignment in localized mode
Operating PWM regulation
There are field sprayers in which the spread rate is regulated via the speed of the spray liquid pump
instead of a regulation valve.
This type of control is described as "PWM control" for short.
PWM control is only possible with field sprayers whose spread rate is only controlled by the rotations
of the spray liquid pump. In this, the spray liquid pump will be controlled via a hydraulic proportional
valve.
The job computer can control the proportional valve and specify the desired speed to it.
The are two ways to use PWM regulation:
▪
Permanent PWM control
▪
Manual activation of the PWM control
Permanent PWM control
In this type of PWM control the PWM control is always active.
As soon as you start the job computer, the spray liquid pump will be automatically set to the speed at
which it was last used.
You do not need to set anything else then.
Manual activation of the PWM control
In this type of PWM regulation you can manually activate and deactivate the spray pump.
Function icon
Meaning
Activating and deactivating PWM regulation
Icon
Meaning
PWM regulation is activated
7.2.8
Mode of operation
Controls
Icons