Brief Product Description

Emerson Fisher FIELDVUE DVC2000 is a smart digital valve controller (intelligent valve positioner) for pneumatic control valves. It converts 4-20mA analog control signal into pneumatic output to drive valve actuators, supporting HART digital communication. Adopting patented non-contact valve position feedback without mechanical connecting rods, it reduces wear and simplifies installation and maintenance. Equipped with local LCD display and operation buttons, it supports on-site calibration and parameter setup. It has ATEX, IECEx, FM and CSA explosion-proof certifications, IP66 / NEMA 4X enclosure. Cooperated with ValveLink software, it realizes online valve health diagnosis and performance monitoring. As a widely used smart valve instrument, it is available as fully-tested surplus and refurbished units for maintenance and retrofit of existing control valve loops.

Core Product Functions

• Convert 4-20mA control signal to pneumatic pressure output to adjust valve stem position accurately
• Non-contact position feedback design, no linkage wear for long service life and easy replacement
• HART protocol communication, supporting hand-held communicator and DCS remote parameter configuration
• Local LCD panel with multi-language menu for on-site auto-calibration, tuning and fault viewing
• Built-in comprehensive valve diagnostics: travel deviation, cycle counter, valve signature test via ValveLink software
• Optional integrated valve position transmitter and limit switch output for valve position feedback to DCS
• Support split range control, custom valve characterization for optimized loop control performance
• ATEX / IECEx intrinsically safe and non-incendive certifications for hazardous process areas

• IP66 rugged housing, suitable for outdoor and harsh industrial plant environments

Application Scenarios

• Chemical, petrochemical and refinery process control valves for flow, pressure and level regulation
• Power plant boiler auxiliary control loops, steam and water system regulating valves
• Oil & gas on-site and offshore platform fluid control and emergency shutdown valve assemblies
• Pulp & paper, pharmaceutical, food & beverage continuous production control valves
• Legacy pneumatic positioner upgrade and intelligent valve retrofit projects
• Spare replacement digital valve controller for maintenance of existing Fisher control valve installations

FAQ (Frequently Asked Questions)

• Q: DVC2000 cannot stroke valve normally after installation?
  A: Check instrument air supply pressure, 4-20mA loop wiring, valve actuator condition, complete auto-calibration and check feedback sensor status.
• Q: Does DVC2000 support hot swap replacement while the process is running?
  A: Process isolation is required. Isolate valve by bypass or block valves, follow lockout-tagout procedures before removing the positioner.
• Q: What is the difference between DVC2000 and DVC6200?
  A: DVC2000 is cost-effective basic intelligent positioner; DVC6200 has advanced diagnostic functions and remote mount options for more demanding applications.
• Q: What communication protocol does DVC2000 use?
  A: 4-20mA analog plus HART digital protocol, compatible with 375/475 HART hand communicator and Emerson ValveLink software.
• Q: Is Emerson DVC2000 available for brand-new process control projects?
  A: This digital valve controller has reached end-of-life. Only fully-tested surplus and refurbished units are offered for existing-site maintenance and retrofit tasks.