Fisher FIELDVUE DVC2000 Digital Valve Controller

Fischer DVC2000 series Valve positioner Product introduction:

DVC2000 series digital valve controller adopts two-stage positioner design. The preamplifier provides a high static gain in order to respond to small changes (0.125% or less) in the input signal. The power amplifier delivers enough air to the actuator to achieve optimal dynamic performance with minimal steady-state air consumption.

DVC2000 series digital valve controller is simple to use, compact and easy to install. The meter is set up via a button and liquid crystal display (LCD) interface. The LCD interface supports several languages, including German, French, Italian, Spanish, Chinese, Japanese and English.

DVC2000 series digital valve controller adopts two-stage positioner design. The preamplifier provides a high static gain in order to respond to small changes (0.125% or less) in the input signal. The power amplifier delivers enough air to the actuator to achieve optimal dynamic performance with minimal steady-state air consumption. The high performance non-contact valve position feedback system avoids direct contact between the stem and the positioner. In this way, there will be no wear and tear of the parts, so that the operating life is maximum. In addition, the absence of connecting rods and fittings reduces the number of mounting parts and the complexity of the installation. Since the feedback component is retained on the actuator push rod, the replacement and repair of the positioner is greatly simplified.

The instrument is designed to meet the requirements of intrinsic safety and no spark, small size, excellent performance, and upgradable function.

Benefits:

Simple, easy to use, digital valve controller. Non-contact, linkage-less valve position feedback system. With no touching parts, the feedback system capitalises on magnetic technology while improving instrument reliability on linear or rotary valves.

Simple to configure: with the full text, multilingual local user interface. English, German, Italian, Spanish, French, Chinese and Japanese languages are supported in every device.

Supports the unique Performance Diagnostics (PD) capability of FIELDVUE instruments. While the control valve is operating, critical valve performance information is available to evaluate and make decisions regarding the health of the entire control valve assembly. Information is communicated to the appropriate personnel via a red-yellow-green snapshot and is further supported with recommendations on how to correct any identified problems.

Simplicity:

The DVC2000 is easy to use. If you are mounting the instrument for the first time, the linkage-less feedback system is easy to install. Once a magnet array is assembled to the valve stem, positioner replacement is simple since there are no physically connected parts.

At its very basic functionality, the DVC2000 digital valve controller has a local user interface that will allow you to configure, calibrate, and tune the instrument. If the I/O Options Package is installed, you can calibrate the 4-20 mA transmitter and configure the limit switch action. Running the Quick Setup routine calibrates and tunes the instrument specifically for that actuator.

The full text display in the local interface is easy to navigate, in part due to the selection of languages. Each unit can be configured to display multiple languages.

Reliability—The DVC2000 is based on the field-proven FIELDVUE technology. Years of control experience has brought this product line to a high level of reliability and dependability.

Performance—The two-stage positioner design provides a mechanical platform that enables responsiveness to small input changes and tighter process control. The digital tuning algorithm allows optimal response to get the valve to its desired position quickly.

Diagnostics—Local User Interface: DVC2000 instruments come standard with a liquid crystal display. Predefined instrument and valve diagnostics are built into the firmware to alert you if there are any problems with the mounting, electronics, hardware, or valve performance.

Handheld Field Communicator: DVC2000 instruments are packed with user-configurable alerts and alarms. These flags provide notification of current status and potential valve and instrument problems through alerts such as travel deviation, travel limit, cycle count, and travel accumulation.

AMS ® ValveLink ® Software: With ValveLink Software, tests can be performed to identify problems with the entire control valve assembly. Using the valve stem travel feedback, actuator pressure sensor,and other sensors on the instrument, the health of the control valve can be evaluated while the valve is still in service and fully operational. This helps to pinpoint problems without disrupting the process – before the equipment fails.

• I/O Options Package— The DVC2000 is available with an I/O Options Package which includes two (2) integral limit switches and a stem position transmitter. The limit switches are configurable for open and closed valve indication at any point throughout the calibrated travel range. The position transmitter provides a 4-20 mA signal for valve position feedback verification. As an integral component to the instrument, this option module avoids the need for difficult-to-mount external switches and transmitters