Transducers
High-performance Fisher electro-pneumatic transducers provide stable and accurate valve operation
High-performance Fisher electro-pneumatic transducers provide stable and accurate valve operation
Electro-pneumatic (I/P) transducers convert a 4-20mA current input to a proportional pressure output. I/P is shorthand for current-to-pressure (I-to-P). An integral pneumatic relay provides the high capacity necessary to drive pneumatic control valve assemblies without additional boosters or positioners. The transducer also provides stable, accurate, operation when its output is transmitted to small volume chambers, such as a pneumatic positioner or other pneumatic instrument.
The convertor module receives a standard DC current input signal from a control device to operate coils in a force balanced beam system, which in turn, controls bleed air through an integral nozzle/flapper arrangement. The nozzle pressure provides the input signal to operator the relay. Relay output pressure is applied, through tubing, directly to the valve/actuator assembly.
