Model Number: HVP11/12-#3329 Key Specifications/Special Features: Intelligent valve positionerHVP intelligent valve positioner is a necessary accessory for intelligent pneumatic actuatorIts operating principle is completely different from analog positionerHVP intelligent valve positioner and pneumatic actuator construct a feedback control loop, in this return circuit, the valve position feedback signal is regarded as a variable comparing with given signal in microprocessor and the D-value between them sends out different length of pulse through the outlet of the main control panel to control the output pressure of the I/P conversion unit, thereby the control valve is driven to actFeatures:1. High accuracy to class 0.52. Set and select output characteristics at will3. Low power and air consumption, high vibration resistance and it is suitable for bad environment4. It can match up with any actuators with different size automatically5. Remote configuration and monitoring can be available with superior computer or hand terminal end6. Self-diagnosis function for signals outrange, input signal interruption and valve position signal interruption7. Failure mode: full open, full close, holding and switch to hand movement
8. Communication with HART and PROFIBUS-PA protocol
9. Current feedback function: output 4～20mA valve position signal