Emerson DVC2000 Digital Valve Controller

Product Description

Emerson Fisher FIELDVUE DVC2000 is an economical digital valve controller (smart positioner). It adopts non-contact magnetic feedback without linkage, single-acting pneumatic output, 4–20mA + HART communication. Configuration can be done via local LCD keypad, handheld communicator or ValveLink diagnostic software. Optional limit switches and valve position transmitter are available. It matches Fisher 657/667/GX linear and part-rotary actuators, providing precise modulation and on-line valve diagnostics. It is widely used for control valves in petrochemical, power and oil & gas industries.

Technical Parameters

• Brand: Emerson Fisher
• Model: DVC2000 (FIELDVUE series)
• Product Type: Digital Valve Controller / Smart Valve Positioner
• Input Signal: 4–20mA DC, split range available, HART 5/7
• Supply Medium: Clean dry compressed air or non-corrosive gas
• Supply Pressure: Max 7 bar (101 psig), recommended 0.5 bar above actuator requirement
• Output: Single-acting pneumatic
• Feedback: Non-contact magnetic feedback, linkage-free
• Accuracy: ±0.5% FS; Repeatability ±0.1% FS
• Local Interface: Multilingual LCD + push buttons for calibration and setup
• Options: 2 isolated limit switches, 4–20mA valve position transmitter
• Mounting: IEC 60534-6, NAMUR, VDI/VDE 3845, direct mount for Fisher actuators
• Approvals: Intrinsically safe, flameproof; ATEX / IECEx / FM / NEPSI
• Operating Temperature: -40℃ ~ +85℃ (standard)
• Protection Class: IP66
• Diagnostics: Travel deviation, cycle counter, valve signature, step response via ValveLink
• Function Levels: AC / HC / AD / PD
• Lifecycle: Active mainstream product, readily available spare

Application

1. Flow, pressure and level control valves for refinery, chemical and natural gas processes;
2. Boiler feedwater, desuperheating, FGD and SCR control valves in power plants;
3. Control loops on offshore platforms and gas pipelines;
4. Sanitary and water treatment control valves for food, pharma and wastewater;
5. Retrofit replacement of old electro-pneumatic positioners for linear/rotary valves;
6. On-line valve health monitoring to detect packing, plug and spring degradation.

Similar Series Models

DVC6200, DVC2000HC, DVC2000AD, DVC6010, DVC6020