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Fisher FIELDVUE DVC6200 Digital Valve - Pacific …

FIELDVUEt DVC6200 Digital ValveControllerThe 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 Less Non Contact PositionFeedback The high performance, linkage lessfeedback system eliminates physical contactbetween the Valve stem and the DVC6200 . Thereare no wearing parts so cycle life is to Survive The field proven DVC6200instrument has fully encapsulated electronics thatresist the effects of vibration, temperature, andcorrosive atmospheres.

www.Fisher.com Fisher FIELDVUE DVC6200 Digital Valve Controller The FIELDVUE DVC6200 digital valve controller (figure 1) is a HART communicating instrument that

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Transcription of Fisher FIELDVUE DVC6200 Digital Valve - Pacific …

1 FIELDVUEt DVC6200 Digital ValveControllerThe 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 Less Non Contact PositionFeedback The high performance, linkage lessfeedback system eliminates physical contactbetween the Valve stem and the DVC6200 . Thereare no wearing parts so cycle life is to Survive The field proven DVC6200instrument has fully encapsulated electronics thatresist the effects of vibration, temperature, andcorrosive atmospheres.

2 A weather tight wiringterminal box isolates field wiring connections fromother areas of the and Responsive The two stagepositioner design provides quick responsiveness tolarge step changes and precise control for smallsetpoint Control/Pressure Fallback Valveposition feedback is critical to the operation of adigital Valve controller. The DVC6200 can detectposition feedback problems and automatically revertto I/P transducer mode to keep the of UseDEnhanced Safety The DVC6200 is a HART communicating 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 LESSFEEDBACK SYSTEMW9616 Figure 1.

3 FIELDVUE DVC6200 Digital Valve ControllerDFaster Commissioning HART communications allows you to quickly commissionloops with a variety of tools, either locally at thevalve assembly or Maintenance The DVC6200 digitalvalve controller is modular in design. Critical workingcomponents can be replaced without removing fieldwiring or pneumatic 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 thisinformation is available via the HART 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 Maintenance Decisions Digitalcommunication provides easy access to thecondition of the Valve .

4 Sound process and assetmanagement decisions can be made by analysis ofvalve information through Fisher :DVC6200D103415X012 November 2010 DVC6200 Digital Valve ControllerDVC6200 Digital Valve ControllerProduct : DVC6200 November 2010 2 ERROR(RED CONDITION INDICATOR)WARNING(YELLOW CONDITION INDICATOR)E1208E1209 EVENT LOG PROVIDES POSSIBLECAUSES AND RECOMMENDEDCORRECTIVE ACTIONSE1210 Figure 2. Condition IndicatorsValve DiagnosticsThe DVC6200 Digital Valve controller provides abroad and deep portfolio of Valve diagnosticcapabilities. Whether the 475 Field Communicator isused to check for Valve alerts and operational status,or ValveLink software is used for comprehensivediagnostic test and analysis, the tools are easy touse.

5 When installed as part of a HART communicating system, the DVC6200 deliversprompt notification of current or potential Diagnostics enables condition andperformance monitoring of the entire Valve assembly(not just the Digital Valve controller) while the Valve isactively controlling the process. When conductingPerformance Diagnostics tests, the Valve does NOTmove beyond the normal setpoint changes driven bythe process controller. The DVC6200 uses statisticalalgorithms to determine condition and performancerelated issues based on live readings from the manyon board sensors. Results are then displayedgraphically, with severity indicated by ared/yellow/green indicator (figure 2).

6 A detaileddescription of the identified issue as well assuggestions for recommended actions are of identifiable issues are:DLow air supply or pressure droopDIncorrect regulator settingDDirty air supplyDExternal air leak (actuator diaphragm or tubing)DCalibration shiftDValve stuckDPiston actuator O ring failureDExcessive Valve assembly frictionDExcessive Valve assembly deadbandDElastomer failure in the DVC6200 DBroken actuator springPerformance Diagnostics also provides access tofull stroke dynamic testing of the Valve assemblyincluding; Valve signature, dynamic error band, stepresponse, and stroke check. These tests change theinstrument setpoint at a controlled rate and areperformed while the Valve assembly is isolated fromthe additional information on FIELDVUE diagnosticsand ValveLink software refer to Fisher :ValveLink (D102227X012).

7 DVC6200 Digital Valve ControllerProduct : DVC6200 November 2010 3 SpecificationsAvailable 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 Input Signal: 4 20 mA DC, nominal; splitranging availableMinimum Voltage Available at InstrumentTerminals must be VDC for analog control,11 VDC for HART communicationMinimum Control Current: mAMinimum Current w/o Microprocessor Restart: mAMaximum Voltage: 30 VDCO vercurrent protectedReverse Polarity Power: 11 to 30 VDC at 8 mAReverse Polarity protectedOutput SignalPneumatic signal, up to 95% of supply pressureMinimum Span: bar (6 psig)Maximum Span: bar (140 psig)Action: JDouble, JSingle Direct or JReverseSupply Pressure(1)Minimum Recommended: bar (5 psig) higherthan maximum actuator requirementsMaximum.

8 Bar (145 psig) or maximumpressure rating of the actuator, whichever is lowerSupply MediumAir or Natural GasAir: Supply pressure must be clean, dry air thatmeets the requirements of ISA Standard Amaximum 40 micrometer particle size in the airsystem is acceptable. Further filtration down to 5micrometer particle size is Gas: Natural gas must be clean, dry,oil free, and noncorrosive. H2S content shouldnot exceed 20 Air Consumption(2)(3)At bar (20 psig) supply pressure: Less normal m3/hr (14 scfh)At bar (80 psig) supply pressure: Less normal m3/hr (49 scfh)Maximum Output Capacity(2)(3)At bar (20 psig) supply pressure: normalm3/hr (375 scfh)At bar (80 psig) supply pressure: 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.

9 Of output spanElectromagnetic CompatibilityMeets EN 61326-1 (First Edition)Immunity Industrial locations per Table 2 ofthe EN 61326-1 Class AISM equipment rating: Group 1, Class AVibration Testing MethodTested per Section ImpedanceAn equivalent impedance of 550 ohms may beused. This value corresponds to 11V @ 20 Testing MethodTested per IEC 61514 2 continued DVC6200 Digital Valve ControllerProduct : DVC6200 November 2010 4 Specifications (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 4 XATEX IP66 IECEx IP66 The 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 67 CFR regulatorOutput Pressure.

10 1/4 NPT internalTubing: 3/8 inch recommendedVent: 3/8 NPT internalElectrical: 1/2 NPT internal, M20 adapter optionalActuator CompatibilityStem Travel (Sliding Stem Linear)Minimum: 11 mm ( inch)(5)Maximum: 606 mm (23 7/8 inches)Shaft Rotation (Quarter Turn Rotary)Minimum: 45_Maximum: kg ( 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 Temperature JNatural Gas CertifiedAdditional InformationFor additional information go or contact your EmersonProcess Management sales : Specialized instrument terms are defined in ANSI/ISA Standard Process Instrument The pressure/temperature limits in this document and any other applicable code or standard should not be Normal m3/hour Normal cubic meters per hour at 0_C and bar, absolute.


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