Emerson Automation Solutions
The FIELDVUE DVC6000 HW2 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.
HART Field Device
Built to Survive— The field proven DVC6000 HW2 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. Actuator Overpressure Prevention
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 DVC6000 HW2 can detect position feedback problems and automatically revert to pressure control mode to keep the valve operational. Ramped Cutoff provides smooth transition from throttling control to shutoff
Ease of Use
Enhanced Safety— The DVC6000 HW2 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. W8373
Easy Maintenance— The DVC6000 HW2 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 due to the integrated position transmitter or switch option.
Increased Uptime— The self‐diagnostic capability of the DVC6000 HW2 provides valve performance and health evaluation without shutting down the process or pulling the valve assembly from the line.