PID parameter tuning
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How can the PID of the instrument be adjusted to achieve rapid tuning?
Adjusting PID parameters quickly relies on experience. The most commonly used method is also trial and error based on experience; it’s actually simple. The method that requires less testing time is likely the attenuation curve method; however, this method presents certain difficulties in reading curves for pressure and flow rates that change rapidly, as well as for liquid level systems with small capacities. Therefore, relying on pure ratios to observe the attenuation curves of 4:1 or 10:1 is also based on experience.
Use an approximate value based on experience; start with a general value and then adjust it according to the actual conditions of the valve. This should be relatively fast