Miscellaneous Parts Fisher Controls Electro-Pneumatic Transducer p/n# Series 546 Fisher Controls Series 546 Electro-Pneumatic Transducer, 4-20 mA Analog, Wired, Remote Mount, Actuat.. Product #: 546 Regular price: $200.00 $200.00 In Stock

Fisher Controls Electro-Pneumatic Transducer p/n# Series 546


Product Code: 546
Availability: In Stock
- Manual

Fisher Controls 546, 546S, and 546NS Electro-Pneumatic Transducers receive a direct-current input signal and use a torque motor, nozzle-flapper, and pneumatic relay to convert the signal to a proportional pneumatic output signal. Nozzle pressure, which operates the relay, is also piped to the torque motor feedback bellows. This provides a comparison between input signal and nozzle pressure and corrects errors in nozzle pressure.


  • High natural frequency of torque motor moving parts results in negligible vibration influence. Meets typical seismic requirements for nuclear service.

  • Screw driver adjustments for span and zero are conveniently located and have arrows indicating rotation to increase settings.

  • No additional are parts required to reverse action.

  • Integrated pneumatic relay is mounted outside case and can be removed without disturbing electrical or pressure connections or impairing explosion safety.

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