Single & double-acting positioners require an input signal of 4÷20 mA for 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.
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Available on request safety version (94/9/EC "ATEX"): II 1 G Ex ia IIC T6, T5 Ga
Available on request safety version (94/9/EC "ATEX"): II 3 G Ex ia IIC T6, T5 Gc / II 3 D Ex tc IIIB Dc T85°C IP65
For linear valves: Model RE01
For rotary valves: Model R99E