Details
Fisher™ 546NS Electro?Pneumatic Transducer
Fisher™ 546 Series Electro-Pneumatic Transducers
Fisher 546, 546S, and 546NS 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.
- Area Classification
- Explosion Proof, Non-incendive
- Certifications
- CSA, FM
- Communication Protocol
- 4-20mA Analog
- Data Interface
- Wired
- Diagnostics
- No
- Input Signal
- Electric
- Mounting Type
- Remote Mount, Actuator Mounted
- Operating Temperature
- Standard Temperature
- Position Control
- Modulating Control
- Process Control
- Pressure
- Supply Media
- Air
- Other Configurations
- Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.
Features
- 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.
