Instruction Manual
D103176X012
Introduction and Specifications
June 2017
4
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.
Local Interface— The DVC2000 comes standard with a Liquid Crystal Display (LCD) and four (4) pushbuttons. The local
interface provides the capability to setup and calibrate the positioner and view basic diagnostic messages.
Magnet Assembly—This is the feedback component that is mounted directly to the valve stem. It supplies a magnetic
field that is sensed by the digital valve controller.
Options Board—The DVC2000 digital valve controller is available with two (2) limit switches and a valve position
transmitter. The options board includes the additional circuitry and terminations that are required to support these
output signals.
Pole Piece—Inserted into the DVC2000 housing and protruding through the back of the instrument is a two-pronged
fork that houses the magnetic sensor for position feedback.
Specifications
Specifications for the DVC2000 digital valve controller are shown in table 1‐1. Specifications for the Field
Communicator can be found in the User's Manual
.
WARNING
This product is intended for a specific range of application specifications. Incorrect configuration of a positioning
instrument could result in the malfunction of the product, property damage, or personal injury.
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