OVERVIEW

An Electro-Pneumatic Positioner is a critical device used in process control systems to position a valve or actuator in response to an electrical control signal. It translates a 4-20 mA or 0-10 V DC signal from a control system into a corresponding pneumatic output to adjust the position of a control valve or actuator, ensuring precise control over process variables like flow, pressure, and temperature.

SPECIFICATION

• Input Signal: 4-20 mA or 0-10 V DC
• Output Pressure Range: 3-15 psi (0.2-1.0 bar) or customizable ranges
• Supply Pressure: 20-100 psi (1.4-7 bar), depending on model
• Stroke Length: Up to 100 mm (4 inches) or more, depending on the actuator
• Accuracy: Typically within ±0.5% of full scale
• Ambient Temperature: -40°C to +85°C (-40°F to +185°F)
• Housing: Explosion-proof or weather-proof enclosures available (IP65, IP66, NEMA 4X)
• Certification: ATEX, IECEx, FM, CSA for hazardous area applications

FEATURES

• High Precision: Ensures accurate valve positioning for optimal control of process variables.
• Fast Response Time: Rapid adjustment to changes in control signals for dynamic process environments.
• Durability: Robust construction to withstand harsh industrial environments, including extreme temperatures, dust, and moisture.
• Feedback Capability: Provides position feedback to the control system for closed-loop control.
• Fail-Safe Operation: Options available for fail-safe positions in case of signal loss or power failure.
• Easy Calibration: Simple calibration procedures for quick setup and maintenance.
• Compatibility: Suitable for use with a wide range of control valves and actuators.