The Rosemount 3051S is part of Emerson's scalable pressure instrumentation platform for industrial pressure, flow, and level measurement. It can be configured for differential, gauge, or absolute pressure applications and integrated with compatible manifolds, primary flow elements, and diaphragm seal systems.

Its modular architecture allows users to select the measurement performance, process connections, communication protocol, and additional functions suited to their application. Advanced diagnostics can help identify electrical-loop problems, plugged impulse lines, and abnormal process conditions, supporting more proactive maintenance.

Key Features

• Differential, gauge, and absolute pressure measurement for diverse industrial applications
• SuperModule™ technology designed to resist overpressure and line-pressure effects
• Patented Coplanar™ platform optimized for pressure, differential pressure flow, and differential pressure level applications
• Up to 0.025% reference accuracy in specified configurations
• 15-year stability and 15-year limited warranty for Ultra and Ultra for Flow performance classes
• Up to 200:1 rangedown, depending on configuration
• Advanced diagnostics for process conditions, plugged impulse lines, and electrical-loop integrity
• Wired and wireless communication options, including 4–20 mA HART®, WirelessHART®, and FOUNDATION™ Fieldbus
• Optional Bluetooth® connectivity for convenient configuration and maintenance
• Optional local or remote display for improved access to measurement readings
• Integrated flow calculations for fully compensated mass flow in supported configurations
• SIL 2/3 certification options for specified safety-related installations

Suitable Applications

• Industrial pressure monitoring
• Differential pressure measurement
• Gauge and absolute pressure measurement
• Differential pressure flow measurement
• Tank and vessel level measurement
• Oil and gas production
• Chemical and petrochemical processing
• Refining operations
• Power generation
• Water and wastewater treatment
• Process control and automation
• Safety-related measurement applications with suitable certified configurations

Technical Highlights & Selection Considerations

• Measurement type: Choose differential, gauge, or absolute pressure measurement according to the process requirements.
• Performance class: Classic, Ultra, and Ultra for Flow options provide different performance capabilities. Confirm the accuracy and stability required for the application.
• Reference accuracy: Up to 0.025% is available for specified configurations. Actual performance depends on the selected model and operating conditions.
• Rangedown: Up to 200:1, depending on the transmitter configuration and calibrated range.
• Process connections: Coplanar and in-line designs can be combined with compatible manifolds, primary elements, and remote seal systems. Confirm connection dimensions and wetted materials.
• Output and communication: Available protocols include 4–20 mA HART®, WirelessHART®, and FOUNDATION™ Fieldbus, depending on configuration.
• Diagnostics: Advanced functions can monitor process abnormalities, plugged impulse lines, and electrical-loop issues. Confirm which diagnostic options are included in the selected model.
• Flow measurement: Supported configurations can calculate fully compensated mass flow when correctly configured with the required process inputs and flow element.
• Display and setup: Bluetooth® configuration and local or remote display options are available on supported versions.
• Safety certification: SIL 2/3 certification under IEC 61508 applies to specified configurations. Check the exact approvals and documentation required for the intended safety function.
• Installation environment: Verify process pressure, temperature, wetted materials, hazardous-area requirements, and environmental protection before ordering.

Frequently Asked Questions

Q1: What is the Rosemount 3051S Pressure Transmitter used for?

It is used for industrial pressure, flow, and level measurement, with configurations available for differential, gauge, and absolute pressure applications.

Q2: What is the advantage of the SuperModule™ platform?

Its all-welded construction is designed to resist overpressure and line-pressure effects, helping maintain measurement performance in demanding process environments.

Q3: What accuracy can the Rosemount 3051S achieve?

Specified configurations offer reference accuracy as high as 0.025%. The applicable accuracy depends on the selected performance class and operating conditions.

Q4: Does the Rosemount 3051S support wireless communication?

Yes. WirelessHART® is available on supported configurations. Wired options include 4–20 mA HART® and FOUNDATION™ Fieldbus, depending on the selected model.

Q5: Can it be used for flow and level measurement?

Yes. When configured with compatible primary elements, manifolds, or seal systems, it can support differential pressure flow and level applications. Certain configurations also provide built-in compensated flow calculations.

Q6: What should I confirm before purchasing?

Confirm the measurement type, pressure range, performance class, process connection, wetted materials, communication protocol, display options, diagnostic requirements, and any safety or hazardous-area certifications.