Pneumatic valve positioner AVP700

rotarysmart

The Smart Valve Positioner 700 Series not only inherits the reliability of the core technology established by the 300 Series but has advanced control valve diagnostic techniques and the latest system integration technology. The Smart Valve Positioner 700 Series provides numerous benefits for various stages in the life cycle of users' plants and contributes to the improvement of plant productivity. Features Excellent environmental resistance and robustness Azbil's unique isolating structure separates the electrical / electronic parts, air circuits, and terminal box from each other, achieving high environment resistance. These features provide what is most important for field equipment: long-term high reliability. Comprehensive control valve diagnosis With newly added pressure sensors in the positioner, it is possible to measure the supply air pressure, nozzle back pressure, and output air pressure. The control valve diagnostic algorithms, which determines the soundness of the control valve based on the measured values of those pressures, have been enhanced. The measured pressures are used for both offline commands in which the soundness of the control valve is determined based on its response to commands sent from the host device when the plant is shut down, and online diagnosis, in which the soundness of the control valve is determined based on the information collected during the operation of the plant. This supports the implementation of status-based maintenance and predictive maintenance.