Advanced Performance Digital Valve Positioner
Masoneilan SVI II AP Advanced PerformanceDigital Valve Positioner
Non-Contact Position Sensing TechnologyBaker Hughes SVI II AP (Smart Valve Interface, Advanced Performance) is a 32 bit microprocessor digital valvepositioner with a local interface that controls a pneumatic actuator using a two-wire 4-20mA control signal. Theinstrument offers bi-directional communication using the HART protocol. Its universal design offers ease of retrofit inplace of existing analog positioners on Masoneilan or non-Masoneilan pneumatic actuators, either single-acting ordouble-acting.ControlDynamic PerformanceNon-Contact Position FeedbackAccuracyThe field-proven, non-contact sensor has nomechanical moving parts, resulting in a potentiallylong life-cycle and simplifying the mountingprocedure. The design is compliant up to SIL2per IEC61508.Designed to SurviveWith no moving parts, encapsulated electronics,stainless steel wetted components, positivelypressured compartments, and a metal housing,the field-proven Baker Hughes SVI II AP positioner iscapable of handling tough environments and resistingthe effects of vibration, temperature, and corrosion.2The high resolution non-contact sensor, capable ofmeasuring movements of 0.00015 percent, combinedwith the proven control algorithm, offers positioningperformance yielding extreme flow control.ResponsivenessThe two-stage pneumatic system has a largeflow capacity (Cv) for fast filling and purging ofthe actuator. This technology, combined with theadvanced positioning algorithm, offers fast andaccurate positioning to small or large setpointchanges in order to enhance process control.
Easy, Simple, AccurateUser FriendlinessVersatileSimplified MaintenanceOne Design Fits Many ApplicationsIncrease Safetyinventory cost to support the processing plant.Baker Hughes has configured the SVI II AP positionerwith modularity in mind to simplify the task of replacingcomponents. The circuit board, LCD, I/P, and pneumaticrelay can be replaced in minutes.The SVI II AP positioner is capable of remote access usingthe HART protocol or with the use of the MasoneilanVECTOR, a wireless HART adaptor. But in the case wherelocal intervention is necessary, the external explosionresistant display allows for calibration and diagnosingoperations without exposing wires to a potentiallyexplosive environment.Quick & Accurate CommissioningThe built-in auto-stop function accurately andrepetitively sets the zero and span of the control valvewhile the built-in auto-tuning function sets the valvepositioning parameters. The result is systematic andenhanced dynamic performance on any control valve.Local Display with PushbuttonsThe optional explosion-resistant display is a user friendlyinterface for SVI II AP positioner setup and calibrationand monitoring operations and alarms. The LCDassembly can be retrofitted in the field.The instrument is capable of handling linear and rotaryapplications, either valve mounted or remotely mounted.In addition, the product’s label encompasses explosionresistant and intrinsically safe applications with FM, CSA,ATEX, and IEC approvals. The net effect is a reduction inIntegratedBaker Hughes SVI II AP positioner supports eDDL, DTM,and system specific technology for integration with mostasset management software programs and controlsystems. Such integration offers ease of commissioningand equipment diagnosis before impacting processcontrol. As a result, the plant can be operational in lesstime with greater availability.Low VoltageThe patented loop-powered circuitry requires 9 Vdc at20 mA allowing compatibility with existing controllersand existing electrical barriers. Such low voltagerequirements allow the plant to improve its existinginfrastructure when migrating to digital valve positioners.Position TransmitterThe loop-powered position transmitter is built-in with theuse of solid state electronics without requiring externalaccessories or HART to analog converters.Discrete OutputsBaker Hughes SVI II AP positioner is equipped with twoconfigurable solid state switches capable of handling 24Vdc up to 1 A. These switches are low-maintenance andreduce the need for external accessories.3
Proven TechnologyHousingBaker Hughes SVI II AP positioner housing is offeredin aluminum or stainless steel. The aluminumversion is chromated and has less than 0.5 percentcopper content to resist harsh environments whilethe stainless steel version is made of solid 316Lmaterial for corrosive atmospheres. Furthermore,the electronic compartment is positivelypressured to reduce external moisture ingress andcondensation. The installation is accomplishedvia four external bolt holes. The design supportsmounting and dismantling without exposing thewiring compartment to the atmosphere.Magnetic Interference ProtectionThe housing has a built-in feature that protectsthe magnet array against debris. In addition, thisprotective feature shields the magnetic field fromelectromagnetic interferences.I/PLCD and PushbuttonsThe heavy-duty I/P with stainless steel wettedparts has a static coil surrounding the nozzle. Asit receives an electrical signal from the electroniccircuit, the static coil magnetizes the nozzleattracting the flapper towards the nozzle resulting ina pneumatic signal that actuates the relay. The I/P isbuilt with a flow regulator to sustain a steady outputagainst air supply disturbances.The optional cover with external LCD andpushbuttons is explosion resistant for accessibilityto the buttons in a hazardous area without the needfor a hot work permit. Sophisticated circuitry detectsthe mechanical activation of a button, providingprotection against false inputs.4
Pneumatic Volume Amplifieror RelayThe pneumatic relay consists of a floatingpoppet valve assembly that modulates using thepneumatic signal from the built-in I/P. The poppetvalve allows the incoming air supply to feed theactuator chamber or to vent the actuator chamberto the atmosphere. The large air flow passagesoffer fast response and operate against airbornecontaminants without possible Joules-Thomsoneffect (ice formation).Magnetic CouplingCircuit BoardThe position of the valve is sensed with the use oftwo rare earth (permanent) magnets diametricallyopposing each other. This type of magnet canmaintain its strength and keeps its magneticproperties for many decades. The orientation of thestrong magnetic field is detected through the wallof the housing by a Hall effect sensor located onthe circuit board. This technology combined witha protective feature for the magnetic field and themagnets on the housing offers accurate positioning.The electronic circuit of Baker Hughes SVI II APpositioner is encapsulated in a silicone-basedmaterial and covered with anti-fungal coatingto help survive in harsh environments. A series ofheavy-duty, spring-loaded connectors offer wiringtermination. Such military and aerospace connectortechnology resists the effects of cold flow (thermalcontraction and expansion of the wire), vibration,and corrosion, resulting in a sustainable electricalconnection.Pressure SensorsFive pressure sensors are built-in for online positioner and control valve diagnostics.These pressure sensors are factory calibrated and low-maintenance.5
VersatileThe SVI II AP positioner is versatile and easy to implement by virtue of its universal design, dual-stage amplificationsystem, and a sophisticated patented auto-tuning algorithm.SVI II AP positioner on 21000 Series control valveSVI II AP on severe service valve6SVI II AP on steam conditioning valve
Electrical ImplementationPosition Setpointwith HART Data4-20mA Position FeedbackDigitalfieldLow Position ConfirmationupgradingHigh Position ConfirmationpossibleEach discrete contact isconfigurable for normal openor closed action and withseveral possible triggers.HART Analog OutputAnalog InputDigital InputConventionalFeedbackDigital InputApplication BenefitsRemote Mount ApplicationControlSafety Extends duration of elastomers when installed intemperatures near or above product’s limit Allows the positioner to help create a safe workingzone for personnel where hazardous and unhealthysubstances or radiation may be present Increases robustness against harsh environments Improves physical accessibility to the positioner forvalves in hard-to-reach locations Remote Positioner can be up to 300 (90m) awayRemote SensorInput Built-In& StandardPositionerlocated in remoteand easilyaccessible areaActuator Signal(3/8" Tubing Required)Remote Position SensorRPS-67ºF to 257ºF(-55ºC to 125ºC)Position Feedback Signal(Shielded cable with three wires)4-20mA Control SignalControl System7
Integration FlexibilityControl SystemThird Party AssetManagementValVue SuiteOpen TechnologieseDDLDTMPlug-In ApplicationSnap-On ApplicationConventional I/OWirelessField Calibrators with HARTDruck DPI620HART Handheld CommunicatorMeriam MFCMasoneilan Valscope PROYokogawa HandheldYokogawa Fieldmate8
Open TechnologyThe SVI II AP can be integrated with a broad range of controllers, control systems, and software available in the industry.FeatureIntegration BenefitLow compliance voltage (9Vdc at 20mA)For legacy system, low impedance circuitry, and Masoneilan VECTOR(loop-powered wireless HART adaptor)Built-In Analog and discrete signalFor non-HART systems and to meet specific industry requirements wheredigital communications is not approvedHART, wired or wireless compliantIntegration flexibility of position feedback, valve diagnostics, and deviceconfigurationeDDL compliantInterface that Integrates with eDDL hosts, software, portable calibratorsDTM compliantIntegrates with FDT capable hostsSystem specific drivers and softwareValve diagnostic integration that eDDL or DTM technology cannot provideAsset management compliantIntegrates with plant management software9
DiagnosticsBaker Hughes SVI II AP positioner offers three types ofdiagnostics — continuous, offline, and online.The continuous diagnostics include self-monitoring ofSVI II AP positioner operation, number of valve cycles, anddistance traveled, hours of operation divided in threecategories (time closed, near closed, and open) and amultitude of valve performance-related alarms.The offline diagnostics allow for bench testing of thepositioner and the control valve using a variety of testsbuilt into the firmware and within ValVue software. Suchtests do override the incoming control signal and are tobe performed on the bench or with the valve bypassed.A useful test is the high resolution Extended ActuatorSignature because it quantifies the friction, the springinitial and final, and the seating profile.The online diagnostics are performed during normaloperation while the positioner is under control. Suchdiagnostics are non-intrusive for the operation of thecontrol valve and offer a wealth of information as to theperformance of the SVI II AP positioner and the controlvalve. The SVI II AP firmware continuously monitors keyperformance indicators and can provide alarms usingHART or the built-in solid-state switches. When combinedwith Valve Aware, the SVI II AP positioner offers a morecomprehensive set of key performance indicators (KPIs)during normal operation.Continuous Diagnostics Cycles (valve reversals) Positioner and valve alerts Travel (distance traveled) Hours of operation- Time closed- Time near closed- Time openOffline Diagnostics Single or multiple-step response (position vs. time) Positioner signature (position vs. command signal) Valve / Actuator signature (actuator pressure vs. travel)Online Diagnostics V alve position, input signal, supply pressure,actuator pressure, I/P pressure Pneumatic system performance Circuit board health Device temperature (actual, high, low) Valve performance—requires Valve Aware(online valve diagnostics) Friction (requires Valve Aware)Valve SignaturesONLINE Valve SignaturesWhen coupled with Valve Aware, valve performancemonitoring becomes possible while the process isrunning. Valve Aware is a software-based technologyfor monitoring and diagnosing the performance of anycontrol valve during normal process operations. Thissolution for final control elements assists in improvingplant integrity, plant efficiencies, and plant uptime,which may result in reduced operating expenditures andincreased plant profitability.Key Performance IndicatorRequires as little as 0.20 percent setpoint variation tomeasure the control valve KPI’s10SV II AP SDModel ADResponse TimeXXSetpoint OffsetXXSetpoint ErrorXXPostion OvershootXXOscillation FrequencyXXLagXXValve FrictionXSpring InitialXSpring FinalXSpring RateX
OFFLINE Valve SignaturesStandard DiagnosticsStep Test SignaturePositioner Signature Hysterisis Deadband Position Accuracy Response Speed Hysterisis Deadband Overshoot ResolutionAdvanced DiagnosticsFull Valve SignatureSeating Analysis Valve / Actuator Friction Spring Range and Calibration Actuator Pressure Seating Analysis High ResolutionValve Signature Valve / Actuator Friction Spring Range and Calibration Response Time Actuator Pressure Signature Stored In Memory Unseating and Seating Plug and Seat Contact Seat LoadSVI II AP positioner can be field upgraded from SD to ADModelSDADPositioner SignatureXXStep TestXXEmbedded SignatureXValve SignatureXSeating AnalysisX11
Features vs ModelSVI II AP VersionCATEGORYHousingSensorsInput / OutputsPositioningField UpgradeableDiagnostics&Valve SignaturesData HistorianAlertsActuator SupportFEATURESDADLow Copper Aluminum (ASTM 360, 0.5% Copper)44Stainless Steel (316L)m1m1Dual 1/2 NPT Electrical Port44Temperature: Circuit Board44Position: Non-Contact, Hall sensor44Pressure: Atmospheric44Pressure: Supply Pressure44Pressure: I/P Pressurem4Pressure: Actuator P1 (Direct Port)m4Pressure: Actuator P2 (Reverse Port, Double-Acting)m4Remote Position Sensor44Programmable Solid State Switchesmm4-20mA Position Retransmit FeedbackmmSplit Ranging (Minimum Span: 5mA)44Valve Characterization44Autostops (Zero & Span)44Live Tuning44Autotune44Positioner Signature (Travel vs Setpoint)44Multiple Step Test (Travel, Setpoint vs Time)442Embedded Standard Signature4High Resolution Extended Valve Signature4Plug & Seat Profile Analysis4Online Valve Diagnostics (with Valve Aware)44Cycle Counter44Travel Accumulator44Time Closed44Time Near Closed44Time Open44Position Deviation44Air Supply Low44Device Integrity44Calibration44S or DS or DSingle-Acting (S) Double-Acting (D)m Optional and field upgrade capable using HART1. Factory-ordered option only. Not field upgradeable.2. Requires ValVue Software12
Model BuilderSeries Identification SVI II AP – abcdefghaDiagnostic2. SD Version – Standard Diagnostics3. AD Version – Advanced DiagnosticsbPneumatics1. Single-Acting2. Double-ActingcVolume Capacity1. Standard Flow2. High Flow Cv 2.6 (pending)dLCD Interface / Housing Material1. No Display and Pushbuttons2. With Display and Pushbuttonse3. Offshore 316L, No Display and Pushbuttons4. Offshore 316L, With Display and PushbuttonsElectronics3. 4-20mA - Loop PoweredfCommunications1.4-20mA Loop Powered with - HART CommunicationsgOptions1. None2. Position Retransmit and Limit SwitcheshSVI II AP-2312112343112Hazardous Area Certification1. A TEX / FM / CSA / IEC IntrinsicSafety & Explosion Proof113
SpecificationsSafety Compliance: SIL2 Self Compliance Per IEC61508 section 2-3Diagnostics: Five Pressure Sensors Total Travel & Number of Cycles Valve Operations (time open/time closed/time near closed) Offline Control Valve Signatures with ValVue Suite orAdvanced DTM Online Friction with Valve Aware Field Upgradable Diagnostic LevelsAir Supply Pressure: Single-Acting: 20 to 100 psi max (1.4 to 6.9 bar) Double-Acting: 20 to 150 psi max (1.4 to 10.3 bar)Air Delivery and Air Consumption:Output DeliveryAir Supply90 psi (6.3 bar)23.3 scfm (660 nI/m)60 psi (4.2 bar)120 psi (8.4 bar) Required Terminal Voltage: 9 Vdc at 20 mA Minimum Current Signal: 3.2 mAOptional Output Signals: Position Transmitter: 4-20 mA - Two Wire Loop-Powered with10-24 Vdc Compliance Voltage Two Configurable Digital Contacts: 30 Vdc, 1AInput Signals: Valve Setpoint: 4-20 mA, 450 Ohms Input Resistance18.3 scfm (520 nI/m)23.8 scfm (675 nI/m)Air SupplySingle-ActingDouble-Acting60 psi (4.2 bar)0.282 scfm (8 l/m)0.565 scfm (16 l/m)30 psi (2.1 bar) Power Supply (taken from 4-20 mA)12.8 scfm (360 nI/m)34.6 scfm (980 nl/m) Paint : Grey Polyurethane (category C4 per ISO 12944-2)Input Power and Signal:7.2 scfm (200 nI/m)16.6 scfm (470 nI/m)Air Consumption1Double-Acting10.0 scfm (280 nl/m)Housing Material: Case / Cover: Aluminum ASTM 360 (std), 316L (optional)Single-Acting30 psi (2.1 bar)0.212 scfm (6 l/m)90 psi (6.3 bar)0.424 scfm (12 l/m)0.424 scfm (12 l/m)120 psi (8.4 bar)0.847 scfm (24 l/m)0.529 scfm (15 l/m)1.06 scfm (30 l/m)Materials: I /P Motor and Relay are constructed of compositepolymers and stainless steel (300 and 400 series)Control Valve Mounting System: aterial:M 300 Series SST StandardValve Type: Remote Position Sensor: 10 k Ohms Linear or Rotary Motion Control Valve Single- or Double-Acting Actuator2Communication:Optional Remote-Mount Position Sensor Kit: HART Revision 5 Protocol (HART 6 Pending)Ambient Temperature Limits: -58 to 185 F (-50 to 85 C)Ambient Humidity Limits: 0 to 95 percent RH Non-condensingEMC Conformity Standards: EN 61000-4-2, 3, 5, 6, 8 IEC 8014-2, -3, -4Actuator Travel Range: Linear Motion: 0.25" (6.4 mm) to 6" – standard mounting 6" (50 mm) – extended mounting Rotary Motion: 18 to 140 degrees Travel Sensor Resolution: 0.0015 percentPneumatics: Air or sweet natural gas – regulated and filtered1. The stainless steel housing is not painted.2. Requires double-acting relay model.3. For linear characteristic.14 Remote Position Sensor (RPS) Assembly Cabling For Up To 30 Meters (100 Feet) Two inch Pipe Mount BracketCertifications: FM, CSA, ATEX, JIS, INMETRO, KOSHA, GOST, IEC Explosion Proof, Intrinsically Safe, Flame Proof, nL Enclosure protection: NEMA 4X / IP66 CE MARKPerformance per ISA S75.13 / IEC615143Accuracy /- 0.5 percent Full SpanHysteresis DeadBand /- 0.3 percent Full SpanLinearityRepeatabilityPower-Up With Position Control /- 1 percent Full Scale /- 0.3 percent Full SpanPower Interruption Without Causing Reset 150 ms 100 ms
Control Performance IntelligenceBaker Hughes SVI II AP positioner with provenelectronic and pneumatic technologies,combined with multiple sensors and smartsoftware, offers high performance valve controlwith real-time diagnostics. The SVI II AP positioneris configured with a non-contact position sensor,a 32 bit ARM processor, a rugged I/P, and a poppetvalve volume amplifier.15
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performance of the SVI II AP positioner and the control valve. The SVI II AP firmware continuously monitors key performance indicators and can provide alarms using HART or the built-in solid-state switches. When combined with Valve Aware, the SVI II AP positioner offers a more comprehensive set of key performance indicators (KPIs)
Valtek XL Series Positioner Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611 Figure 2: XL Series Positioner Mounted on Valtek Linear Actuator Figure 3: XL Series Positioner Mounted on Fisher 657 Actuator Calibration is easy using the XL positioner due to minimal interaction between zero and span. Also, the
the flow rate and pressure. To select the correct valve to fulfill these functions properly, an outline of the different types of valves and their features is given below. Butterfly valve Butterfly valve and globe valve Butterfly valve and ball valve Butterfly valve and gate valve Check valve Gate valve Globe valve Ball valve Valve shaped like a
Masoneilan SVI II AP Digital Positioner Quick Start Guide 9 SVI II AP Product Safety The SVI II AP digital valve positioner is intended for use with industrial compressed air or, natural gas systems only. See Hazardous Location Installation on page 75 for natural gas safety
SVI II Digital Positioner and Controller 2 The Universal Control Solution Flexibility and versatility of the Masoneilan SVI II digital valve positioner and controller provides high performance solutions for any process control application. SVI II offers advanced features and functions using the HART Communications protocol.File Size: 2MBPage Count: 10
G- Autoflow Valve 2.0 GPM H- Autoflow Valve 2.5 GPM I- Autoflow Valve 2.8 GPM J- Autoflow Valve 3.0 GPM K- Autoflow Valve 3.3 GPM L- Autoflow Valve 3.5 GPM M- Autoflow Valve 4.0 GPM N- Autoflow Valve 4.5 GPM O- Autoflow Valve 5.0 GPM P- Autoflow Valve 5.5 GPM Q- Autoflow Valve 6.0 GPM R- Autoflow Valve
4, 5 port pilot operated valve 4TB 5 port pilot operated valve (pneumatic valve) 4L2-4/LMFO 3, 4, 5 port pilot operated valve (pneumatic valve) 4KA/4KB 5 port pilot operated valve (pneumatic valve) 4F 5 port pilot operated valve (ISO conformed valve) PV5G/PV5/CMF 3 port direct acting valve (small pneumatic valve) 3MA0/3MB0
Figure 1. Principle of Operation 5. Principle of operation The Logix 500si positioner is a digital positioner with various options. The positioner consists of three main modules: 1. The microprocessor-based electronic control module includes direct local user interface switches 2. The piezo valve-based electro-pneumatic converter module 3.
Korean as a second language (L2). This study quantifies such correspondence at the syllable level by calculating the degree of correspondence in Korean-Chinese syllables. The degree of correspondence between Korean and Chinese syllables was examined. Results show that among the 406 Chinese character families in Sino-Korean words, 22.7% have an average correspondent consistency lower than 0.5 .
