Fisher® FIELDVUE™ DVC6200 digital valve controllers are HART® communicating, microprocessor-based current-to-pneumatic instruments with linkage-less, non-contact travel feedback. This instrument provides one platform for any pneumatic actuator application. The DVC6200 can be installed on sliding-stem, rotary, single- or double-acting actuators.
Fisher® FIELDVUE™ DVC6200 digital valve controllers
The FIELDVUE DVC6200 digital valve controller is a HART communicating instrument that converts a two‐wire 4‐20 mA control signal into a pneumatic output to an actuator. It can easily be retrofitted in place of existing analog positioners on most Fisher and non‐Fisher pneumatic actuators.
Linkage‐Less Non‐Contact Position Feedback— The high performance, linkage‐less feedback system eliminates physical contact between the valve stem and the DVC6200. There are no wearing parts so cycle life is maximized.
Built to Survive—The field proven DVC6200 instrument has fully encapsulated electronics that resist the effects of vibration, temperature, and corrosive atmospheres. A weather‐tight wiring terminal box isolates field wiring connections from other areas of the instrument.
Accurate and Responsive— The two‐stage positioner design provides quick response to large step changes
and precise control for small setpoint changes.
Travel Control/Pressure Fallback— Valve position feedback is critical to the operation of a digital valve controller. The DVC6200 can detect position feedback problems and automatically revert to I/P transducer mode to keep the valve operational.
Ease of Use
Enhanced Safety— The DVC6200 is a HART communicating device, so information can be accessed anywhere along the loop. This flexibility can reduce exposure to hazardous environments and make it easier to evaluate valves in hard to reach locations.
Faster Commissioning— HART communications allows you to quickly commission loops with a variety of tools, either locally at the valve assembly or remotely.
Easy Maintenance— The DVC6200 digital valve controller is modular in design. Critical working components can be replaced without removing field wiring or pneumatic tubing.
Hardware Savings— When installed in an integrated control system, significant hardware and installation cost savings can be achieved. Valve accessories such as limit switches and position transmitters can be eliminated because this information is available via the HART communication protocol.
Increased Uptime— The self‐diagnostic capability of the DVC6200 digital valve controller provides valve performance and health evaluation without shutting down the process or pulling the valve assembly from the line.
Improved Maintenance Decisions— Digital communication provides easy access to the condition of the valve. Sound process and asset management decisions can be made by analysis of valve information through Fisher ValveLink software.