Rosemount 3051S Coplanar Pressure Transmitter

Overview

The Rosemount 3051S pressure transmitter is Emerson’s scalable SuperModule™-based platform engineered to meet the full range of pressure, differential pressure flow, and level measurement requirements found across modern process plants. Built on patented Rosemount Coplanar technology, the 3051S delivers optimized performance whether configured as a straightforward pressure transmitter, a DP flow solution, or a DP level instrument, and is available with both wired 4…20 mA HART and WirelessHART® communication options for maximum installation flexibility.

For refineries, petrochemical plants, and process facilities across Oman and the wider GCC, the 3051S offers industry-leading long-term stability and accuracy that reduces recalibration frequency and lowers total cost of ownership across large transmitter populations. Seven Star LLC supplies the Rosemount 3051S pressure transmitter to customers in Muscat, Sohar, Salalah, and across the Sultanate of Oman as an authorized Emerson Rosemount distribution partner, ensuring genuine equipment, full documentation, and factory-backed technical support.

Measurement and Operating Principle

The 3051S SuperModule sensing platform uses a capacitance-based sensing cell to detect differential, gauge, or absolute pressure, converting the mechanical deflection of the sensing diaphragm into a proportional electrical signal. This design provides strong resistance to overpressure and line pressure effects, helping the 3051S maintain rated accuracy even under demanding process upset conditions that would degrade the performance of less robust sensor technologies. In its Ultra performance class, the 3051S achieves accuracy as tight as ±0.025% with rangedown capability up to 200:1, allowing a single transmitter to be specified across a wide span of process conditions.

Advanced Diagnostics built into the 3051S electronics provide three layers of insight: Process Intelligence for proactive monitoring of abnormal process and equipment conditions, Plugged Impulse Line diagnostics for detecting blocked or restricted process connections, and Loop Integrity diagnostics for continuous monitoring of the electrical loop from transmitter to control system. Together these diagnostics support predictive maintenance strategies and help reduce unplanned downtime across critical measurement points.

Engineering Design of the Rosemount 3051S

The 3051S is available in multiple communication protocol configurations including 4…20 mA HART, WirelessHART, and FOUNDATION Fieldbus, giving system integrators the flexibility to specify the same proven sensing platform across wired and wireless network architectures. Transmitters, flow meters, and seal systems built on the 3051S platform arrive fully assembled and leak tested from the factory, simplifying field installation and reducing commissioning time. An optional Bluetooth wireless interface allows technicians to configure and troubleshoot the transmitter from a mobile device without opening the electronics housing, improving safety and efficiency during maintenance in hazardous areas.

The 3051S Ultra and Ultra for Flow performance classes are backed by a 15-year stability specification and matching 15-year limited warranty, reflecting Emerson’s confidence in the platform’s long-term measurement integrity. Safety-instrumented system applications are supported through SIL 2/3 certification to IEC 61508 via independent third-party assessment, along with prior-use certification and FMEDA data for safety system design documentation. The platform supports direct mounting, remote mounting, and balanced and tuned multi-sensor systems to accommodate a wide variety of process and installation requirements.

Key Features

• Patented Coplanar SuperModule sensing platform for pressure, DP flow, and DP level
• Accuracy to ±0.025% with rangedown up to 200:1 (Ultra performance class)
• 15-year stability specification and matching limited warranty
• Advanced Diagnostics: Process Intelligence, Plugged Impulse Line, Loop Integrity
• Wired 4…20 mA HART, WirelessHART, and FOUNDATION Fieldbus options
• SIL 2/3 certified to IEC 61508 for safety-instrumented systems
• Optional Bluetooth configuration and diagnostics
• Factory-assembled and leak-tested transmitters, flow meters, and seal systems

Industrial Applications

The Rosemount 3051S is deployed extensively across refining, petrochemical, upstream oil and gas, and power generation facilities for differential pressure flow measurement across orifice plates and other primary flow elements, direct pressure measurement, and DP-based level measurement in vessels and tanks. Its advanced diagnostics and long-term stability make it especially valuable for safety-instrumented systems and custody transfer applications where measurement integrity directly affects plant safety and commercial outcomes.

Across Oman’s oil, gas, and process industries, including facilities supporting the Sohar and Salalah industrial zones, the 3051S gives instrumentation engineers a proven, scalable platform that standardizes pressure measurement across an entire facility while reducing spares and training complexity. As an authorized Emerson Rosemount partner, Seven Star LLC supports these projects across the Sultanate of Oman with genuine factory-sourced transmitters, application engineering, and after-sales support.

Technical Specifications

Order Your Rosemount 3051S Today

Contact Seven Star LLC to request a quotation, datasheet, or technical consultation for the Rosemount 3051S pressure transmitter. As an authorized Emerson Rosemount distribution partner serving Muscat, Sohar, Salalah, and the greater Sultanate of Oman, Seven Star LLC supplies genuine, factory-sourced instrumentation with full documentation and dedicated technical support for pressure, flow, and level measurement projects across the GCC.