Fisher DVC6200 HART Digital Valve Controller for Precise Flow and Pressure Control

Product Overview

The Fisher DVC6200 is a FIELDVUE digital valve controller that uses HART communication to interface a control system with a pneumatic actuator. It takes a two-wire 4-20 mA control signal and produces a proportional pneumatic output to position the valve. The unit is built to replace analog positioners on most pneumatic actuators without adapter parts. A magnetic, non-contacting position sensor eliminates linkage wear and extends cycle life. The encapsulated electronics module resists high vibration, temperature swings, and dirty plant air.

Technical Specifications

Application Industry

The DVC6200 has proven itself in refining, chemical, nuclear, oil and gas, power, pulp and paper, food and beverage, water and wastewater, pharmaceutical, and metals and mining industries. It handles process control for flow, pressure, temperature, and level applications.

Common Problems

• Instrument will not communicate: Check power supply, terminal voltage (should be 9–32 VDC), and wiring connectors on the printed wiring board.

• Valve does not stroke from 0 to 100%: Verify pneumatic connections and supply pressure; check that function block is in the correct mode.

• I/P converter output out of spec: May indicate a defective module base seal, defective relay, or a faulty 67CFR regulator.

Replacement Models

The DVC6200 is designed to retrofit existing analog positioner installations. It is a common upgrade from older DVC2000 units. For other brands, verify mounting, travel range, and communication protocol before ordering.