Technical Specifications 4-20mA signal input, HART communication, pneumatic output, local display and button operation.
Functional Features Valve position closed-loop control, HART digital communication, automatic calibration, fault diagnosis, valve performance monitoring.
Application Scenarios Petrochemical, oil and gas, chemical, power plant pneumatic regulating valves.
Performance Parameters High positioning precision, fast response, strong anti-vibration performance, stable operation in harsh field environment.
Material Composition Aluminum alloy housing, plastic display window, internal piezoelectric valve, circuit board and position feedback sensor.
Structural Characteristics Compact field mounting housing, local operation buttons, LCD display, air pipe and signal wiring ports.
Working Principle Receive 4-20mA control signal from controller, compare signal with actual valve position, adjust pneumatic output pressure to drive valve to target position.
Installation Requirements Mount on pneumatic actuator, connect instrument air pipeline, wire 4-20mA control signal, complete automatic calibration.
Usage Notes Keep instrument air clean and dry. Regularly check air pipeline for leakage and position feedback status.
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