Pneumatic positioners PP981
The ADCATrol PP981 is a pneumatic positioner used for direct operation of pneumatic linear or rotary actuators by means of pneumatic controllers with a 0,2 to 1 bar proportional control signal. 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.
The positioner features a compact design and a modular construction which allows easy attachment of options such as limit switches, analog feedback modules, manifolds, volume boosters, amongst others.
- Compact and flexible design.
- Mounting onto any linear or rotary actuator.
- Single or double acting.
- Supply pressure up to 6 bar.
- Adjustable amplification and damping.
- Independent adjustment of stroke range and zero position.
- Resistant to vibration effect in all directions.
- ATEX approvals.
- Module for analog position feedback.
- Digital position feedback with inductive switches (two or three-wire system).
- Digital position feedback with microswitches.
- Attachment kit for linear actuators acc. to IEC 534/NAMUR.
- Attachment kit with rotary adaptor for rotary actuators acc. to VID/ VDE 3845.
- Connection manifold with gauges.
- Volume boosters.