Chapter 4 – Sprayer Controller Setup
27
4.5.2. Proportional valve system
Proportional valve systems typically control a hydraulic valve that
adjusts the speed of the pump to control the flow that is being delivered
directly to the boom.
1.
Select Implement / Sprayer / Control Valve .
2. Select CONTROL VALVE and select Proportional.
l Flow meter sampling: Sets how frequently sampling is done.
Standard sampling is recommended. Reduced is recommended only
if flow may be highly irregular (for example, on worn equipment).
l Add dither: Dither makes the valve vibrate slightly to help prevent
sticking. Valve quality and brand will dictate whether this setting is
required.
l Minimum PWM: The time that the Pulse Width Modulation
(PWM) is active. Higher values set the pulse of power for longer
during a pulse cycle. Minimum PWM is used to locate at what
point a valve or motor will respond to the power provided.
Anything under this figure the implement (motor, valve actuator)
will not respond.
l Maximum PWM: The time that the Pulse Width Modulation
(PWM) is active. Higher values set the pulse of power for longer
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