Fisher Controls Electro-Pneumatic Converter Type 582i

Fisher Controls Electro-Pneumatic Converter Type 582i

The Fisher Controls Type 582i Electro-Pneumatic Converter is a modular device engineered to seamlessly convert a 4 to 20 mA DC electrical input signal into a proportional pneumatic output signal. This conversion facilitates precise control over pneumatic actuators, enhancing the performance and reliability of control valve assemblies.

Key Features

• Modular Design: The 582i converter can be installed either at the factory or in the field, offering flexibility to meet various operational requirements.
• Precise Signal Conversion: Utilizing a nozzle/flapper mechanism, the converter ensures accurate translation of electrical signals into pneumatic outputs, eliminating the need for remote-mounted transducers.
• Robust Construction: Designed to withstand harsh environments, the converter’s case, components, and gasket materials offer durability and resistance to corrosion and vibration.
• Flexible Mounting: Easily mounts to the Fisher 3582 positioner, providing stable operation and simplifying installation processes.
• Field-Reversible Action: Allows for straightforward switching between direct and reverse actions within the pneumatic valve positioner, accommodating diverse control scenarios.

Technical Specifications

• Input Signal: 4 to 20 mA DC constant current with a maximum compliance voltage of 30 VDC; capable of split-range operation.
• Output Signal: Pneumatic pressure as required by the actuator, up to 95% of the maximum supply.
• Supply Pressure: Recommended at 0.3 bar (5 psi) above actuator requirements; maximum of 3.4 bar (50 psig) or the actuator’s pressure rating, whichever is lower.
• Maximum Input Bellows Pressure Rating: 2.4 bar (35 psig).
• Air Consumption: Varies with supply pressure; for instance, at 1.4 bar (20 psig) supply, consumption is approximately 0.42 normal m³/hr (17.2 scfh).
• Pressure Connections: 1/4-inch NPT female.
• Electrical Connection: 1/2-14 NPT conduit connection.
• Maximum Valve Stem Travel: 105 mm (4-1/8 inches), adjustable for lesser travel with standard input signals.
• Approximate Weight: 2.5 kg (5-1/2 pounds).

Certifications and Compliance

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. It meets various international standards, ensuring safe and reliable operation in diverse industrial environments.

Applications

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. Its reliable performance and robust design make it a preferred choice for enhancing control valve assembly operations.