주요 이점 및 장점
Simplified Installation and Setup: The DVC2000 features a linkage-less feedback system that is remarkably easy to install. The integrated local user interface allows technicians to configure, calibrate, and tune the instrument directly at the valve without the immediate need for a handheld communicator or laptop.
Two-Stage Positioner Design: Unlike single-stage positioners, the DVC2000 utilizes a two-stage mechanical platform. This design provides high responsiveness to minute input changes, enabling tighter process control and reducing variability in the control loop.
Integrated Multilingual Display: The compact housing features a liquid crystal display (LCD) that supports multiple languages. This makes it easier for global maintenance teams to monitor valve status, view alerts, and navigate configuration menus in their preferred language.
Diagnostic Insights with ValveLink: Using ValveLink software, operators can perform comprehensive tests on the entire valve assembly. These diagnostics help pinpoint issues like friction changes or air leaks without disrupting the process, allowing for predictive maintenance before a failure occurs.
I/O Options Package: For enhanced functionality, the DVC2000 can be equipped with an I/O package that includes two integral limit switches and a stem position transmitter. This provides real-time position feedback to the control room and confirmation of fully open or closed states without extra external hardware.
Integral Mounting Solutions: The DVC2000 is designed for seamless integration with Fisher actuators, including the GX series and the 657/667 size i models. Integral mounting eliminates the need for external brackets and protects the feedback sensing components from environmental damage.
기술적 특성
Operation: Digital-to-pneumatic valve positioner with linkage-less feedback.
Display: Multilingual LCD with local push-button interface.
Input Signal: 4 to 20 mA DC (HART communicating).
Feedback System: Non-contacting, linkage-less magnetic sensing.
Pneumatic Design: Two-stage relay for high precision.
Optional I/O: Two discrete limit switches and 4-20 mA position transmitter.
Mounting: Standard and integral mounting (Fisher GX, 657, 667).
Diagnostics: Performance Diagnostics and ValveLink software compatibility.
적용 분야
The DVC2000 is an excellent choice for general-purpose and precision control applications where ease of use is a priority.
주요 산업 및 용도:
-
Chemical & Petrochemical: Reliable control for utility lines and non-critical process reactors.
-
Food and Beverage: Managing steam and water flow in automated processing skids.
-
Water and Wastewater: Localized control of flow and pressure in distribution networks.
-
Pharmaceutical: Precise temperature control for jackets and heating systems.
-
General Manufacturing: Integrated valve control for factory air, water, and gas utilities.
