Pneumatic positioner is a useful interlinking device controlling cylinder/valve movement in proportion to pneumatic signal ranging between 0.2 to 1 bar (3 to 15 psi) or split ranges. The salient features of Schrader Pneumatic Positioner are:
It is compact.
Works effectively under adverse environmental conditions
It is economical due to minimal air consumption.
Provision of orifice-disc to prevent hunting in small size actuators.
Convenient changeover from single acting to double acting and vice versa.
Electo Pneumatic positioner is a useful interlinking device controlling cylinder/valve movement by means of electric controller or control system with an analog output signal of DC 4 to 20 mA or split range. The salient features of Schrader Electro Pneumatic Positioner are:
There is no resonance between 5-200 Hz.
Works effectively under adverse environmental conditions.
It is economical due to minimal air consumption.
Provision of orifice-disc to prevent hunting in small size actuators.
The convenient changeover from single acting to double acting and vice versa.
Smart Positioner controls the stroke of the actuator in proportion to the input signal between 4-20mA. Besides, an efficient built-in microprocessor performs functions like auto calibration, PID control, Alarm and Hart protocol etc. In addition,
LCD display unit communicates the status of the actuator unit.
Hart communicator processes the variety of information related to actuator & positioner.
PID parameters can be easily adjusted in the field without using communicator.
Positioner transmitter is also offered as an optional accessory.