The Masoneilan SVI II AP Advanced Performance Digital Valve Positioner (HART) is a 32-bit microprocessor digital valve positioner with a local interface that controls a pneumatic actuator using a two-wire 4-20mA control signal. The Masoneilan SVI II AP Advanced Performance Digital Valve Positioner (HART) offers bi-directional communication using the HART® protocol. Its universal design offers ease of retrofit in place of existing analog positioners on Masoneilan* or non-Masoneilan pneumatic actuators, either single-acting or double-acting.
The Masoneilan SVI II AP Advanced Performance Digital Valve Positioner (HART) is a 32-bit microprocessor digital valve positioner with a local interface that controls a pneumatic actuator using a two-wire 4-20mA control signal. The Masoneilan SVI II AP Advanced Performance Digital Valve Positioner (HART) offers bi-directional communication using the HART® protocol. Its universal design offers ease of retrofit in place of existing analog positioners on Masoneilan* or non-Masoneilan pneumatic actuators, either single-acting or double-acting.
Masoneilan SVI II AP Advanced Performance Digital Valve Positioner have following features:
Non-Contact Position Sensing Technology for Masoneilan SVI II AP Advanced Performance Digital Valve Positioner (HART):
Sensing through the housing, no mechanical moving parts entering the main housing cavity, prolonging the life
Simple mounting procedure
Easy, Simple, Accurate:
LCD and pushbuttons operable in all certified hazardous environments
Quick and accurate commissioning with auto stops and auto tune methods
One design fits many applications
Rotary or Linear
Remote or Local
The SVI II AP (Smart Valve Interface) is the next generation of Masoneilan’s intelligent digital valve positioners. The SVI II AP is a high performance, digital valve positioner that combines a local display with remote communication and diagnostic capabilities. The SVI II AP offers a multitude of options that fulfills the broadest range of applications. It also communicates using the HART ® protocol. The High Flow version is capable of 2.2 C v air throughput.
An optional pushbutton and LCD display enables local operations of calibration and configuration functions. Remote operations can be performed with ValVue software or any HART ® Registered host interface that has been pre-loaded with the Device Description file (DD) for SVI II AP.
| Model | Masoneilan SVI II AP |
| Operating Temperature Limits | -58° F to 185° F (-50° C to 85° C) |
| Storage Temperature Limits | -58° F to 200° F (-50° C to 93° C) |
| Temperature Effect | < 0.005% /° F typical; -40° F to 180° F (< 0.01% /° C typical; -40° C to 82° C) |
| Supply Pressure Effect | 0.05% per psi unit (.73% per bar unit) |
| Relative Humidity | 10 to 90% non-condensing |
| Humidity Effect | Less than 0.2% after 2 days at 104° F (40° C), 95% relative humidity |
| Insulation Resistance | Greater than 10 G Ohms at 50% RH |
| Fast Transient Burst | No effect at 2 kV (Coupling clamp IEC 1000-4-4) |
| Accuracy | +/- 0.5% (typical +/-0. 10% or less) Full Span |
| Hysteresis and Deadband | +/- 0.3% Full Span |
| Repeatability | +/- 0.3% Full Span |
| Conformity | +/- 0.5% Full Span |
| Start-Up Drift | Less than 0.02% in first hour |
| Long Term Drift | Less than 0.003% per month |
| Position Travel Limits | Rotary: 18 – 140° |
| Reciprocating: 0.25” – 2.5“ (6 mm – 64 mm) | |
| Note: Above 2.5” (64 mm) consult factory for mounting instructions |
Applicable Industries of Masoneilan Type 51/52/53 Pneumatic Piston Actuators
Power Generation, Refining, Petrochemicals, Midstream Oil & Gas, Upstream Oil & Gas.
Key Applications: Steam Turbine Generator, Condenser, Cooling Tower, Reactor Building, Turbine Building, Reactor Facility Grounds & BOP, Steam Turbine, Gas Turbine, Heat Recovery Steam Generator, Balance Of Plant, Distillation, Hydroprocessing Reforming, Cracking, Secondary, Blending, Quenching & Fractioning, Charge Gas Compression, Seperation, Pipeline Integrity, Operations, Dehydration, Refrigeration, Liquifaction, Loading/Shipping, Regasification, Auxillary, Dehydration/Treating, Compression.
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