Apparatus for calibrating a set of valve, method for calibrating a position controller of the valve, article manufactured, and apparatus for calibrating a set including a state posicion u00e1 vel

摘要

An article of manufacture storing machine-readable instructions which, when executed, cause a machine to: receive a position signal representative of positions of a valve; receive a first value representative of an estimated current position of the valve; receive a second value representative of a sensitivity of a position sensor; compute a first estimated value of the position signal corresponding to an expected fully-open position of the valve based on the received position signal and the first and second received values; compute a second estimated value of the position signal corresponding to an expected fully-closed position of the valve based on the received position signal and the first and second values, wherein the first and second estimated values are computed while the current position of the valve is fixed; compute a third value representative of an actual position of the valve based on the position signal and the first and second estimated values; and transmit the third value to at least one of a process control device, a monitoring station, a monitoring device, an automatic shutdown system, or a process interlock.