Logix 3800 Digital Positioner
Overview
The Logix 3800 digital positioner brings reliable, high-performance control to both linear and rotary valves. It supports both single-acting and double-acting actuators in one versatile platform, cutting complexity and inventory needs. With quick one-button calibration, technicians can install and start up faster in any environment, helping plant owners and operators maximize production while minimizing operating costs.
As an authorized supplier of Flowserve valve solutions, Seven Star LLC proudly offers the Logix 3800 to oil and gas, chemical, power generation, and general industrial applications across the Sultanate of Oman, Muscat, and the wider GCC. It is the choice for applications that require a balance of technological sophistication and long-lasting reliability in tough environments.
Measurement Principle
The Logix 3800 uses a shielded, dual-element, non-contact magneto-resistive position sensor combined with a temperature-compensated single-acting and dual-acting pneumatic design to ensure stable performance. The dual-element feedback sensor is contactless, limiting the number of moving parts and enhancing long-term reliability.
Advanced predictive diagnostics include five intelligent onboard pressure sensors, powered by ValveSight DTM, that identify developing problems in valves and actuators before they become critical failures. This enables operators to better assess and prioritize corrective actions, supporting proactive management of downtime and throughput, and can be extended further via connection to the RedRaven platform for asset health monitoring.
Engineering Design of the Logix 3800
The Logix 3800 features a rugged, modular design constructed from copper-free aluminum and stainless steel, with IP66 protection against dirt, water, impact, and vibration. In single-acting configuration, it delivers 20.4 Nm3/h (12 SCFM) air capacity at 4.1 bar (60 psi) with less than 0.25 Nm3/h air consumption, operating from -40°C to +85°C; in double-acting configuration, it delivers 30.6 Nm3/h (18 SCFM) air capacity with 0.082 to 0.637 Nm3/h consumption, operating from -52°C to +85°C.
One-button quick calibration automatically sets zero, span, and gain, simplifying commissioning to under 60 seconds. The positioner offers broad application versatility supporting analog, HART, Foundation Fieldbus, 4-20mA, and discrete I/O signals, with an optional remote-mount module for locating the positioner away from the valve. It carries SIL 3 capable certification (double-acting) with ATEX/IECEx and China CCC hazardous area approvals, including Ex db and Ex ia protection methods.
Key Features
The Logix 3800 combines proven pneumatic control with intelligent diagnostics in a single unit. Core capabilities include:
- Supports both linear and rotary valves, single- and double-acting actuators.
- Non-contact magneto-resistive position sensor for long-term reliability.
- One-button quick calibration—commissioning in under 60 seconds.
- Five onboard pressure sensors with ValveSight DTM predictive diagnostics.
- SIL 3 capable (double-acting); ATEX/IECEx, China CCC approvals.
- IP66 rugged construction resistant to dirt, water, impact, and vibration.
- Analog, HART, Foundation Fieldbus, 4-20mA, and discrete I/O compatibility.
- Optional Zero-Bleed automation package for near-zero fugitive emissions.
Industrial Applications
The Logix 3800 is well suited to oil and gas, chemical, and power generation facilities across Oman requiring reliable, high-precision valve control with advanced diagnostic capability. Its compatibility with Valtek Mark One, Automax rack and pinion actuators, and other OEM valve/actuator combinations makes it a versatile choice for process automation throughout the region.
Technical Specifications
Full technical parameters for the Logix 3800 digital positioner:
| Parameter | Specification |
|---|---|
| Model | Logix 3800 |
| Valve Type | Linear and Rotary |
| Actuator Type | Single-Acting and Double-Acting |
| Air Capacity (Single-Acting) | 20.4 Nm3/h @ 4.1 bar (12 SCFM @ 60 psi) |
| Air Capacity (Double-Acting) | 30.6 Nm3/h @ 4.1 bar (18 SCFM @ 60 psi) |
| Operating Temperature | -52°C to +85°C |
| Materials | Copper-Free Aluminum, Stainless Steel |
| Communication | Analog, HART, Foundation Fieldbus, 4-20mA, Discrete I/O |
| Ingress Protection | IP66 |
| Safety Rating | SIL 3 Capable (Double-Acting) |
| Hazardous Area Approvals | ATEX, IECEx, China CCC, Ex db, Ex ia |
Call To Action
To submit a formal Request for Quote (RFQ), check regional stock availability, or arrange technical consultation for the Logix 3800 Digital Positioner, please contact the official instrumentation division at Seven Star LLC today. As an authorized supplier of Flowserve valve solutions in Oman and the GCC, our engineers are ready to assist with rapid sourcing for your valve automation and positioning projects.
Flowserve is a recognized global leader in supplying fluid motion and control products, specializing in the manufacturing of engineered industrial pumps, precision valves, automation systems, and mechanical seals. At Seven Star LLC, we provide Flowserve’s highly advanced fluid handling technologies, designed to master the most challenging flow control applications. Operating under strict international certifications (such as API, ISO, and ASME), Flowserve products are critical for optimizing fluid transport, minimizing emissions, and ensuring maximum safety in hazardous locations. By supplying authentic Flowserve flow control systems, Seven Star LLC ensures that oil and gas, petrochemical, power generation, and water management sectors across Oman and the GCC maintain seamless infrastructure operations and high thermal efficiency.
Reviews
There are no reviews yet.