VALSTEAM ADCA PE986 ELECTRO-PNEUMATIC POSITIONER POSITIONERS & CONVERTORS

The ADCATrol PE986 positioner requires an input signal of 4÷20 mA for the proportional control actuator. The positioner compares the output signal from a controller with the position feedback and varies a pneumatic output signal to the actuator accordingly. The actuator position is therefore guaranteed for any controller output signal and the effects of varying differential pressure.