Instruction Manual

Instruction Manual
D103176X012
Introduction and Specifications
April 2014
3
Section 1 Introduction and Specifications1‐1‐
Scope of Manual
This instruction manual is a supplement to the DVC2000 Quick Start Guide (D103203X012) that ships with every
instrument. This instruction manual includes specifications, installation, initial setup, configuration, operation,
troubleshooting, maintenance information and replacement part details.
This manual describes using the 475 or 375 Field Communicator to setup and calibrate the instrument. To accomplish
these functions, as well as diagnostic and performance tests with ValveLink software, refer to the ValveLink software
help.
Do not install, operate, or maintain a DVC2000 digital valve controller without being fully trained and qualified in
valve, actuator, and accessory installation, operation, and maintenance. To avoid personal injury or property damage,
it is important to carefully read, understand, and follow all of the contents of this manual, including all safety cautions
and warnings. If you have any questions regarding these instructions, contact your Emerson Process Management
sales office before proceeding.
Instrument Description
The DVC2000 digital valve controller is a communicating, microprocessor-based current-to-pneumatic valve
positioner. It is designed to replace standard pneumatic and electro-pneumatic valve positioners.
In addition to the traditional function of converting an input current signal (4-20 mA) to a pneumatic output pressure,
the DVC2000 digital valve controller communicates via a local display panel and/or via the HARTr protocol. An option
is available which provides isolated circuitry for two (2) integrated limit switches (for open/close valve indication) and a
valve position transmitter (for separate valve position feedback).
Terminology
Instrument Level— There are four (4) levels of functionality available: AC, HC, AD and PD.
AC—This level provides the capability to setup and calibrate the positioner through the LCD or the Field
Communicator.
HC—This level provides additional capability for advanced configuration of the positioner (such as travel limits/cutoffs,
custom characterization, and minimum open/closing time). Also, information is available through the HART protocol
for diagnostic alerts such as travel deviation, cycle count, and travel accumulation.
AD—This level provides advanced diagnostic capabilities for performance testing. When used with ValveLink software,
instrument health can be evaluated with tests such as Valve Signature, step response and dynamic error band. The
software program provides detailed analysis with graphics.
PD—This level provides automated, non-intrusive testing of the operating performance of the control valve assembly.
When used with ValveLink
software, tests to isolate component degradation can be run on the valve assembly without
affecting the process.