Product Overview

The Fisher 3800SA is an intelligent digital valve positioner converting a 4-20 mA input into precise pneumatic output for single-acting actuators. It supports HART communication, linkage-less non-contact feedback, a push-button LCD and intrinsically safe NAMUR mounting.

Key Features

• Intelligent digital positioner with 4-20 mA input and HART communication

• Linkage-less non-contact position feedback for long service life

• Push-button calibration with LCD interface

• NAMUR / VDI-VDE 3845 and IEC 60534 mounting on single-acting actuators

• Intrinsically safe design with rugged aluminum enclosure

Typical Applications

Control valves for natural gas, petrochemical, refining and power generation service.

Selection Guide

Confirm actuator type, stroke or rotation range and instrument air supply before ordering; quote the valve serial number for configuration support.