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8-21
A2677 Rev 1.5
X20 Sprayer Reference Manual
Proportional Valve Settings
Spraying systems that use a proportional valve are controlling a
hydraulic valve, which in turn drives a hydraulic motor which
drives a pump. Spray regulation is controlled by changing the
pump speed. The settings will need to be tuned for the Sprayer.
Valve Options
• Add Dither—Select this when using Proportional Valves
• High Minimum PWM Range—Deselecting the High
Minimum PWM Range option (default) displays Min
PWM range values between 5% and 40%.
Selecting the High Minimum PWM Range option
displays the Min PWM range from 42.5% to 60%
• Enable Soft Start—should be left deselected
• Close Valve When Off—should be left deselected.
Figure 8-6. Proportional Valve Settings