Overview
The Fisher 582i electro-pneumatic converter is a compact modular device engineered to bridge electrical control signals and pneumatic actuation. The 582i contains an I/P module which provides a pneumatic output proportional to a DC current input signal. The 582i electro-pneumatic converter is a modular unit that can be installed at the factory or in the field. This converter eliminates the need for remote-mounted transducers in valve positioner applications, making it a cost-effective solution for systems requiring proportional pneumatic control.
Key Features
- Force-balanced design: The DC current input operates coils in a force balanced beam system which in turn, control bleed air through an integral nozzle/flapper arrangement.
- Modular installation: Mounts directly to valve positioners at the factory or retrofitted in the field with proper application review.
- Proportional control: Delivers precise pneumatic output signal proportional to 4–20 mA DC input current.
- Hazardous area certified: The Type 582i converter is certified for use in hazardous areas, including classifications such as intrinsically safe, explosion-proof, type n, and dust-ignition proof.
- Industrial-grade reliability: Suitable for demanding environments in oil and gas, chemical processing, and power generation applications.
Technical Specifications
- Input Signal: 4–20 mA DC (max 20 mA)
- Supply Voltage: 30 Vdc maximum
- Operating Temperature Range: −40°C to +71°C
- Enclosure Rating: CSA Encl. 3 / NEMA 3 / IP54
- Hazardous Area Classifications: Class I Division 1, 2 Groups ABCD; Class II (dust)
- Temperature Class: T6 (at up to +47°C ambient); T5, T4 ratings available
- Output Type: Proportional pneumatic pressure
- Mounting: Direct to valve positioner or standalone
Typical Applications
The Fisher 582i is commonly deployed in process control systems requiring precise pneumatic actuator modulation. Ideal for industries requiring precise control of pneumatic actuators, the Fisher 582i Electro-Pneumatic Converter is commonly utilized in sectors such as oil and gas, chemical processing, and power generation. The converter integrates seamlessly with the Fisher 3582 and 3582i positioner families, reducing panel space and simplifying installation in retrofit or new builds.
Compatibility & Replacements
Compatible With
- Fisher 3582 Pneumatic Valve Positioner
- Fisher 3582i Electro-Pneumatic Valve Positioner
- Sliding-stem diaphragm control valve actuators
- Proportional pneumatic control systems
- Hazardous area-classified control loops
Replaces / Drop-In Replacement For
The 582i is a standalone or integrated component. Verify compatibility with your existing positioner before retrofit. Do not install on existing positioners without consulting with Emerson or your system integrator for application assistance.
Works With
- Fisher positioner product line (3582, 3582i)
- 4–20 mA DC control systems and PLC outputs
- Pneumatic supply systems (typical 20 bar / 3 psi minimum vent pressure)
- HART communication (on 3582i positioners when integrated)
- Intrinsically safe and explosion-proof wiring schemes
