Technical Specifications Device Type: Current‑to‑Pneumatic Signal Converter Input Signal: 4‑20 mA DC, input impedance 170Ω Output Signal: 20‑100 kPa (3‑15 psi) pneumatic pressure output Action Mode: Direct or reverse action configurable Air Supply Source: Clean compressed air source Operating Temperature: ‑40 °C to +80 °C Storage Temperature: ‑40 °C to +85 °C Housing Type: Threaded‑cover explosion‑proof enclosure Certifications: CE explosion‑proof and industrial signal converter complianceNEX Instru…
Functional Features Converts DC current control signal into proportional pneumatic pressure output. Supports direct‑acting and reverse‑acting mode switching to adapt different control loops. Integrated air filter regulator for input air source processing. Explosion‑proof housing adapts to hazardous industrial field installation environment. Compact field‑mount structure, convenient for installation near pneumatic valve position.
Application Scenarios Widely used in petrochemical, chemical industry and oil‑gas processing plant. It matches electric DCS control system and pneumatic regulating valve, completes process flow, pressure and liquid level regulation control loop.
Structural Characteristics Cast‑aluminum explosion‑proof housing with threaded sealing cover. Internal equipped with galvanometer‑type mechanical conversion mechanism. Integrated air filter and pressure regulating assembly. Internal wiring terminal block for 4‑20mA electric signal connection. Air source inlet and pneumatic output port for pipeline connection.
Working Principle 4‑20mA DC control current passes through internal galvanometer coil to generate electromagnetic force. The mechanical balance mechanism converts electromagnetic force into corresponding pneumatic output pressure. Input compressed air passes through filter regulator, and outputs stable proportional pneumatic pressure signal to pneumatic actuator according to input current magnitude.
Installation Requirements Mount converter on stable support near pneumatic regulating valve. Connect clean and dry compressed air source to air‑supply inlet port. Complete 4‑20mA DC control signal wiring inside explosion‑proof housing. Set direct‑acting or reverse‑acting mode according to control loop requirement.
Usage Notes Input compressed air must keep clean, dry and oil‑free to prevent internal mechanism damage.
There are no reviews yet.