Supplier Fisher 846 Electro-Pneumatic Transducer
DISTRIBUTORALATINDUSTRI.COM | Supplier Fisher 846 Electro-Pneumatic Transducer | The Fisher 846 Electro-Pneumatic Transducer is a high-performance I/P (Current-to-Pressure) transducer designed to convert an electrical control signal into a proportional pneumatic output signal. It is commonly used in pneumatic control valve actuators, valve positioners, and other pneumatic control instruments.
Supplier Fisher 846 Electro-Pneumatic Transducer
Key Features
- Type: Electro-Pneumatic / I/P Transducer
- Input Signal: Typically 4–20 mA DC
- Pneumatic Output: Typically 3–15 psi (0.2–1.0 bar)
- Action: Direct or reverse action
- Range: Suitable for full-range and split-range applications
- Electronic Feedback: Provides stable and accurate output pressure while compensating for supply pressure variations and downstream leakage.
- Industrial Design: Rugged construction suitable for demanding industrial environments.
- Maintenance: Designed with replaceable modules to simplify field maintenance and troubleshooting.
- Applications: Control valves, pneumatic actuators, valve positioners, and pneumatic control systems.
Operating Principle
The Fisher 846 receives a 4–20 mA electrical signal from a control system and converts it into a proportional pneumatic pressure signal.
Typical relationship:
| Input | Output |
|---|---|
| 4 mA | 3 psi (0.2 bar) |
| 12 mA | 9 psi (0.6 bar) |
| 20 mA | 15 psi (1.0 bar) |
The resulting pneumatic output can then be used to control a pneumatic actuator or positioner, providing reliable modulation of industrial control valves.
Typical Applications
The Fisher 846 is widely suitable for:
- Control valve actuator applications
- Pneumatic valve positioners
- Process control systems
- Oil & gas facilities
- Petrochemical plants
- Power generation
- Chemical processing
- Industrial automation
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