VALVE MONITORING

摘要

A valve controller (10) for controlling a valve (12) and a valve (12) comprising the valve controller are disclosed. The valve comprises an actuator (14) and a flow controlling unit (16). The valve controller (10) comprises equipment for controlling the function of at least one of the actuator (14) and the flow controlling unit (16). The valve controller (10) is further configured to obtain (100) one or more first parameter values indicative of a functionality of the equipment at startup of the valve controller (10). The valve controller (10) is configured to monitor (200) the equipment during operation of the valve controller for determining one or more second parameter values indicative of the functionality of the equipment and determining (210) if a change in functionality of the equipment has occurred based on a comparison of the one or more second parameter values with the one or more first parameter values.