艾默生DVC6200

The FIELDVUE DVC6200 digital valve controller(figure 1) is a HARTr communicating instrument thatconverts a two−wire 4−20 mA control signal into apneumatic output to an actuator. It can easily beretrofitted in place of existing analog positioners onmost Fisher and non−Fisher pneumatic actuators.

Features

Reliability

DLinkage−Less Non−Contact Position

Feedback— The high performance, linkage−lessfeedback system eliminates physical contact

between the valve stem and the DVC6200. Thereare no wearing parts so cycle life is maximized.DBuilt to Survive—The field proven DVC6200instrument has fully encapsulated electronics thatresist the effects of vibration, temperature, andcorrosive atmospheres. A weather−tight wiringterminal box isolates field wiring connections fromother areas of the instrument.Performance

DAccurate and Responsive— The two−stagepositioner design provides quick responsiveness tolarge step changes and precise control for smallsetpoint changes.Ease of Use

DEnhanced Safety— The DVC6200 is a HARTcommunicating device, so information can beaccessed anywhere along the loop. This flexibilitycan reduce exposure to hazardous environmentsand make it easier to evaluate valves in hard toreach locations.

DFaster Commissioning— HART

communications allows you to quickly commissionloops with a variety of tools, either locally at thevalve assembly or remotely.

LINKAGE−LESSFEEDBACK SYSTEM

W9616

Figure 1. FIELDVUE DVC6200 Digital Valve Controller

DEasy Maintenance— The DVC6200 digitalvalve controller is modular in design. Critical workingcomponents can be replaced without removing fieldwiring or pneumatic tubing.Value

DHardware Savings— When installed in anintegrated control system, significant hardware andinstallation cost savings can be achieved. Valveaccessories such as limit switches and positiontransmitters can be eliminated because this

information is available via the HART communicationprotocol.

DIncreased Uptime— The self−diagnosticcapability of the DVC6200 digital valve controllerprovides valve performance and health evaluationwithout shutting down the process or pulling thevalve assembly from the line.

DImproved Maintenance Decisions— Digitalcommunication provides easy access to thecondition of the valve. Sound process and assetmanagement decisions can be made by analysis ofvalve information through Fisher ValveLinktsoftware.

www.Fisher.comProduct BulletinDVC6200 Digital Valve Controller62.1:DVC6200 HCNovember 2010ALERTINDICATEDBY RED BARRED INDICATESALERT IS ACTIVEGREEN INDICATESNO ALERT IS PRESENTALERTSSTATUS MONITOR

Figure 2. Alerts Status Screen

Valve Diagnostics

The DVC6200 digital valve controller provides acomprehensive library of valve diagnostic alerts, asshown in figure 2. These alerts are easily accessedwith the 475 Field Communicator. When installed aspart of a HART communicating system, the

DVC6200 delivers prompt notification of current orpotential equipment issues directly to the assetmanagement system.

Alerts assist in identification and notification of thefollowing situations:

DValve travel deviation due to excessive valvefriction or gallingDHigh cycle due to dither or improper tuning

DTotal travel movement accumulation beyond aspecified point resulting in packing wearDTravel sensor or linkage failure

DValve travel above or below a specified pointDVarious instrument mechanical and electricalissuesThese alerts are stored in memory on board theDVC6200.

For additional information on FIELDVUE diagnosticsand ValveLink software refer to Fisher bulletin62.1:ValveLink (D102227X012).

2

Product Bulletin62.1:DVC6200 HCNovember 2010DVC6200 Digital Valve ControllerAir: Supply pressure must be clean, dry air thatmeets the requirements of ISA Standard 7.0.01. Amaximum 40 micrometer particle size in the airsystem is acceptable. Further filtration down to 5micrometer particle size is recommended.Natural Gas: Natural gas must be clean, dry,oil-free, and noncorrosive. H2S content shouldnot exceed 20 ppm.Steady-State Air Consumption(2)(3)At 1.4 bar (20 psig) supply pressure: Less than0.38 normal m3/hr (14 scfh)At 5.5 bar (80 psig) supply pressure: Less than1.3 normal m3/hr (49 scfh)Maximum Output Capacity(2)(3)At 1.4 bar (20 psig) supply pressure: 10.0 normalm3/hr (375 scfh)At 5.5 bar (80 psig) supply pressure: 29.5 normalm3/hr (1100 scfh)Operating Ambient Temperature Limits(1)(4)−40 to 85_C (−40 to 185_F) −52 to 85_C (−62 to 185_F) for instrumentsutilizing the Extreme Temperature option(fluorosilicone elastomers)Independent LinearityTypical Value:±0.50% of output spanSpecificationsAvailable MountingJIntegral mounting to the Fisher GX Control Valve and Actuator System (see figure 1)JIntegral mounting to Fisher rotary actuatorsJSliding-stem linear applicationsJQuarter-turn rotary applicationsDVC6200 digital valve controllers can also bemounted on other actuators that comply with IEC 60534-6-1, IEC 60534-6-2, VDI/VDE 3845and NAMUR mounting standards.Input SignalPoint-to-Point.Analog Input Signal: 4−20 mA DC, nominal; splitranging availableMinimum Voltage Available at InstrumentTerminals must be 10.5 VDC for analog control,11 VDC for HART communicationMinimum Control Current: 4.0 mAMinimum Current w/o MicroprocessorRestart: 3.5 mAMaximum Voltage: 30 VDCOvercurrent protectedReverse Polarity protectedMulti-drop.Instrument Power: 11 to 30 VDC at 8 mAReverse Polarity protectedOutput SignalPneumatic signal, up to 95% of supply pressureMinimum Span: 0.4 bar (6 psig)Maximum Span: 9.5 bar (140 psig)Action: JDouble, JSingle Direct or JReverseSupply Pressure(1)Minimum Recommended: 0.3 bar (5 psig) higherthan maximum actuator requirementsMaximum: 10.0 bar (145 psig) or maximumpressure rating of the actuator, whichever is lowerSupply MediumAir or Natural Gas−continued−Electromagnetic CompatibilityMeets EN 61326-1 (First Edition)Immunity—Industrial locations per Table 2 ofthe EN 61326-1 standard.Emissions—Class AISM equipment rating: Group 1, Class AVibration Testing MethodTested per ANSI/ISA-S75.13.01 Section 5.3.5.Input ImpedanceAn equivalent impedance of 550 ohms may beused. This value corresponds to 11V @ 20 mA.Humidity Testing MethodTested per IEC 61514−2 3

Product BulletinDVC6200 Digital Valve ControllerSpecifications (continued)Electrical ClassificationHazardous Area ApprovalsCSA— Intrinsically Safe, Explosion−proof, Division 2, Dust Ignition−proofFM— Intrinsically Safe, Explosion−proof,Non−incendive, Dust Ignition−proofATEX— Intrinsically Safe and Dust, Flameproofand Dust, Type n and DustIECEx— Intrinsically Safe, Flameproof, Type nElectrical HousingCSA— Type 4X, IP66FM— NEMA 4XATEX— IP66IECEx— IP66The Gas Certified DVC6200 is FM, ATEX,IECEx, and CSA Single Seal approved for usewith natural gas as the supply mediumConnectionsSupply Pressure: 1/4 NPT internal and integralpad for mounting 67CFR regulatorOutput Pressure: 1/4 NPT internalTubing: 3/8-inch recommendedVent: 3/8 NPT internalElectrical: 1/2 NPT internal, M20 adapter optional62.1:DVC6200 HCNovember 2010Actuator CompatibilityStem Travel (Sliding−Stem Linear)Minimum: 11 mm (0.45 inch)(5)Maximum: 606 mm (23−7/8 inches)Shaft Rotation (Quarter−Turn Rotary)Minimum: 45_Maximum: 90_Weight3.5 kg (7.7 lbs)Construction MaterialsHousing, module base and terminal box:ASTM B85 A03600 low copper aluminum alloyCover: Thermoplastic polyesterElastomers: Nitrile (standard) OptionsJSupply and output pressure gauges or JTirevalves, JIntegral mounted filter regulator,JLow-Bleed Relay, JExtreme TemperatureJNatural Gas CertifiedAdditional InformationFor additional information go towww.FIELDVUE.com or contact your EmersonProcess Management sales office.NOTE: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 − Process Instrument Terminology.1. The pressure/temperature limits in this document and any other applicable code or standard should not be exceeded.

2. Normal m3/hour − Normal cubic meters per hour at 0_C and 1.01325 bar, absolute. Scfh − Standard cubic feet per hour at 60_F and 14.7 psia.3. Values at 1.4 bar (20 psig) based on a single-acting direct relay; values at 5.5 bar (80 psig) based on double-acting relay.4. Temperature limits vary based on hazardous area approval.

5. For travel less than 11 mm (0.45 inch) contact your Emerson Process Management sales office.

Fisher, FIELDVUE, and ValveLink are marks owned by one of the companies in the Emerson Process Management business division of EmersonElectric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. HART isa mark owned by the HART Communication Foundation. All other marks are the property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, theyare not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or

applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve thedesigns or specifications of such products at any time without notice. Neither Emerson, Emerson Process Management, nor any of their affiliatedentities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance ofany product remains solely with the purchaser and end user.

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