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SVI-III The Third Generation Digital Valve Positioner

Published on May 5th 2020

Accurate, Responsive and Reliable

The third generation Baker Hughes Masoneilan™ SVI™ is a user friendly digital valve positioner for pneumatic control valves. Utilizing advanced control and diagnostic algorithms, along with field-proven noncontact position sensing technology, the SVI delivers accurate, responsive, and reliable positioning performance


Reliable and Accurate:
•Built on 20+ years of field proven valve position sensing technology, control algorithms, and advanced performance pneumatic design

Increase Plant Efficiency:
•Intelligent troubleshooting using embedded Key Performance Indicators (KPIs) •Cloning capability for on-demand hot swapping •One device for all environments and applications enabling reduction of spares inventory •Low bleed pneumatics

Simple and Easy to use:
•Automated, single button commissioning
•Local user interface providing full configuration capabilities - no additional tools/handheld required
•Integrates with all leading control systems and asset management software systems
•Easy field upgrades enabled by new modular architecture and digital upgrades
•Integrated Input/Output – no additional bolt on accessories required


•Smart Cal - One button setup & calibration
•User Interface with high contrast graphical display and pushbuttons, rated for operation in Hazardous Areas
•NAMUR NE 107 alerts
•Universal design for linear and rotary valve applications
•Robust, non-contact, shielded magnetic-type travel sensor
•Industrial metal housing
•Encapsulated and coated electronics
•Integrated diagnostics: Cycle counts, Step Tests, Ramp Tests, Signatures, as well as system health indicators
•On board valve position feedback and limit switches
•Stainless steel mounting brackets for any valve actuator combination, fully backwards compatible to SVI II AP / SVi1000 brackets
•Explosionproof AND Intrinsically Safe Universal label with ETL (US/CA), ATEX, IEC approval (regional approvals pending)
•HART® 7 communication compliant


•Case/Cover: Chromated Copper Free(1) aluminum, ASTM A360
•Paint: Grey polyurethane with epoxy primer
•Protection: IP66 and NEMA 4X
Note: (1) Per API RP 14F
•3.3kg (6lb)
•I/P Motor and Relay - composite polymers and stainless steel (300 & 400 series)
•Mounting Kit - stainless steel (300 series)
Input Power and Signal:
•Min/Max current: 3.2mA / 22mA
•Required Compliance voltage: 9Vdc at 20mA, 11Vdc at 4mA
•Termination: Screw-type terminals
•Electrical Entries: Two 1/2NPT female
Optional Input/Output Signals:
•Two Configurable solid state switches:
- 1A – 30Vdc, self protected
- Normally Open or Normally Closed (when powered)
•One 4 to 20 mA Output - Position Retransmit
•One Configurable Digital Input
•One Analog Remote Position Sensor Input : 1k Ohm
Communication, Setup and Calibration:
•HART® Protocol, Rev 7
•Integrates with leading DCSs with full DTM and EDD support, including, but not limited to:
•Emerson DeltaV / AMS
•Honeywell / FDM
•Yokogawa / PRM
•GE MarkVle ControlST
•Optional local user interface with graphical LCD and keypad, approved for use in hazardous areas
•Smart Cal one button calibration including Stops, Air-action, Autotuning and Pre-determined Tuning sets
Ambient Temperature and Humidity Limits:
•Standard Temperature, -40°C to 85°C
(-40°F to 185°F), Nitrile Diaphragms
•Optional Extreme Temperature, -55°C to 85°C
(-67°F to 185°F), Flourosilicone Diaphragms
• 100% RH non-condensing
Tropical environmental compatibility
•Fungus resistance per ASTM-G21
•Exposed circuits covered with anti-fungal coating
•Positively pressured housing with insect-resistant vents
EMC Conformity Standards:
•Meets IEC/EN61326-1 Edition 2
•Emission: CISPR11 Class A
•Immunity: IEC/EN61000-4-2, 3, 4, 5, 6, 8
•EMC 2014/30/EU Directive
Performance (2)per ISA S75.13:
•Accuracy +/- 0.5 percent Full span
•Hysteresis + DeadBand +/- 0.3 percent Full span
•Repeatability +/- 0.3 percent Full span
•Power-Up with position control <150ms
•Power Interruption without reset <100ms
Note: (2) For linear characteristic
Actuator capabilities:
Non-contact shielded magnetic travel sensor capable of:
•Linear Motion: 0.25” to 8” (6.4 to 200 mm)
•Rotary Motion: 18° to 140°
•Travel Sensor Resolution: 0.0125% (Typical - Rotary)
Pneumatics (Single-acting only)
•Dry, oil-free air or sweet natural gas - regulated and filtered
•Air supply pressure: 1.4 to 8.3 bar max (20 to 120 psi max)
Air delivery:
•410 SLPM (14.5 SCFM) @ 30psi
Air capacity:
•Loading Cv = 0.66
•Venting Cv - 0.51
Steady State Air Consumption:
•2.8 SLPM (5.9 SCFH) @ 30psi
•3.4 SLPM (7.2 SCFH) @ 45psi
Advanced Diagnostics:
•Travel odometer, Cycles, Time Closed/Open, Time Near Closed, Alarms
•Ramp Test: Hysteresis, Deadband, Accuracy, Linearity
•Step Test: Overshoot, Response resolution, Deadtime
•Valve Signature: Spring Range, Friction, Seat Profile
Online Valve Diagnostics:
•Friction, Stick Slip, Spring Range, Error Offset, RMS Error, Obstruction Detection, Calibration Error, and Setpoint cycling tests
Hazardous Area Certifications:
ATEX, IECEx, ETL (US, CA) approvals for:
•Flameproof / Explosion-proof
•Intrinsic Safety
•Dust Ignition Proof
•Increased Safety (e)

Note: See manual for a complete listing of all available certifications and marking codes