Hydraulic Proportional – Amplifier Adjustments

– Changes input vs. output ratio
– Limits maximum output

Zero (Null)
– Offsets spool into a “0” hydraulic condition due to manufacturing tolerances

Ramp Time
– Single ramp controls acceleration and deceleration
– Dual ramps control acceleration (ramp up) separate from deceleration (ramp down)
– Quadrant ramps change all 4 quadrants independently


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