Remote Digital E-P positioner

• ALP Series Remote Smart Valve Positioner is an anti-vibration smart valve positioner, specially designed for valves and actuators in a vibrating working environment. The remote solution installs the valve position sensor unit of the positioner separately on the top of the valve, and then transmits the sensing valve position signal to the remote control unit of the positioner through the twisted pair cable. At working, the control unit of the positioner receives the 2 wire 4-20mA.DC input signal from DCS system, obtains the valve position control set value through A/D conversion, and the actual valve position signal obtained through the remote valve position sensor, both through the CPU calculating, controls the input and output pressure of the pneumatic actuator through pilot valve, and than drives the valve to the set position.