The SAMSON TROVIS 3730-5 is a state-of-the-art, microprocessor-based electropneumatic valve positioner designed for seamless integration into modern digital process control systems. As part of the acclaimed 3730 series, this model features native FOUNDATION™ Fieldbus (FF) communication, enabling powerful, two-way data exchange within your fieldbus network.
Its core function is to receive a digital setpoint via the fieldbus, compare it with the actual valve position measured by its wear-free sensor, and output a precise pneumatic signal to achieve accurate positioning. Beyond simple positioning, the 3730-5 is an intelligent field device capable of hosting a complete PID control loop and acting as a Link Active Scheduler (LAS), allowing for distributed control directly at the valve site.
Equipped with the integrated EXPERTplus diagnostic suite, it transforms your valve into a predictive maintenance asset, offering functions like Partial Stroke Test (PST) and Full Stroke Test (FST) to ensure reliability, especially in Safety Instrumented Systems (SIS).
True Fieldbus Integration: Full FOUNDATION Fieldbus compliance allows for advanced digital communication, remote configuration, and access to rich device and process data directly from your control system.
Distributed Control Capability: The integrated PID function block and Link Master capability enable the creation of autonomous control loops in the field, reducing load on higher-level control systems and enhancing system responsiveness.
Comprehensive Predictive Diagnostics: The EXPERTplus software provides extensive monitoring and diagnostic functions, including data logging, hysteresis tests, and critical PST/FST for valve health assessment and preventive maintenance.
Universal Application & Easy Setup: Can be mounted in any orientation on virtually all linear (IEC 60534-6) and rotary (VDI/VDE 3845) actuators. Four automatic initialization modes ensure quick, optimal adaptation to any valve/actuator combination.
Robust and User-Friendly Design: Features a simple one-knob interface with an LCD readable from any angle. Its calibrated, non-contact position sensor is immune to mechanical wear, ensuring long-term accuracy and reliability.
The table below summarizes the core technical specifications of the SAMSON TROVIS 3730-5 Smart Valve Positioner.
| Attribute | Specification |
|---|---|
| Model | TROVIS 3730-5 |
| Communication | FOUNDATION™ Fieldbus (FF) |
| Input Signal / Power | Digital via FF bus; Bus-powered (9-32 VDC) |
| Travel Range | Linear: 3.6 to 200 mm (up to 300 mm with accessory) Rotary: 24° to 100° opening angle |
| Supply Air Pressure | 1.4 to 7.0 bar (20 to 105 psi) |
| Air Consumption | Low steady-state consumption (approx. 110 ln/h) |
| Key Features | Integrated PID controller & Link Master (LAS), EXPERTplus diagnostics with PST/FST, Tight-closing function |
| Integrated Function Blocks | 1 PID, 1 AO, 2 DO, 2 DI, 1 IS, 1 MAI, 1 MAO (as per registration) |
| Housing / Protection | Die-cast aluminum or optional stainless steel / IP66 or IP67 |
| Safety Certification | Suitable for use in SIS; complies with IEC 61508 (supports up to SIL 3) |
| Configuration | Via fieldbus, TROVIS-VIEW software (SSP interface), or local push-button |
The SAMSON 3730-5 is engineered for critical control and high-data applications across a wide spectrum of industries, including:
Oil & Gas (upstream, midstream, refining)
Chemical & Petrochemical Processing
Power Generation
Pharmaceutical & Biotechnology
Water & Wastewater Treatment
For detailed technical datasheets, configuration support, or specific pricing information for the SAMSON TROVIS 3730-5 FOUNDATION Fieldbus Positioner, please do not hesitate to contact our sales team.
If you have any questions about the specifications or the suitability of this positioner for your application, please contact the Kateteco sales team for expert support.
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KateTeco (Tianjin) Technology Co., Ltd. serves as an outstanding partner in the field of industrial fluid automation, specializing in the introduction and integration of high-end valves and instruments. We are committed to providing customers with safe, reliable, and intelligent system solutions. By leveraging global leading product resources and supported by systematic professional training and on-site technical assistance from Emerson’s experienced engineers, we ensure that customers can respond promptly and accurately to technical challenges.
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