Menu 3.4 Regulation Constant; Regulation Constant - Hardi HC6500 Instruction Book

7 - Menu 3 Calibration

Menu 3.4 Regulation constant

Regulation constant

The sensitivity of the pressure regulation valve can be adjusted. The goal is to find a value where the regulation does not
overshoot the set point, but slows down and stops right before the set point.
Increasing the regulation constant will give a faster response on the pressure regulation valve. If the constant is too high,
the valve will become unstable. There will also be excessive wear on the valve.
The range is in percent and is typically set between 30% to 50%. Begin with regulation constant set at 50%.
Monitor the regulation valve, does it overshoot? Then adjust until the valve slows down and stops right before the set point:
If it overshoots, then reduce the regulation constant in steps of 5%.
If it does not overshoot and the valve stops far away from the set point, then increase constant in steps of 5%.
μ
ATTENTION! For sprayers with regulation feedback the value can be reduced to 30 %.
7.7