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Rosemount 4051S Pressure Transmitter: Features, Specs & Applications

Rosemount 4051S Pressure transmitter | Nuicon

The Rosemount 4051S Pressure Transmitter is designed for industrial processes where accurate and consistent pressure measurement is essential. Depending on the configuration, it can measure differential, gauge and absolute pressure, with options for flow and level applications.

It combines measurement accuracy with wide rangedown, extended stability, intelligent diagnostics and digital connectivity. These capabilities make it suitable for process environments where reliable measurement and useful device information are important for operation, control and maintenance.

What Is the Rosemount 4051S?

A pressure transmitter measures process pressure and converts it into a signal that can be used by industrial control and monitoring systems.

The Rosemount 4051S adds configurable measurement options, diagnostic functions and field connectivity to support modern process instrumentation requirements.

How Does a Pressure Transmitter Work?

Pressure Sensing

The sensing element detects changes in pressure from the connected process.

Signal Processing

Internal electronics process the sensor signal and prepare it for industrial transmission.

System Integration

The measured value can be communicated to control, monitoring and asset-management systems.

Diagnostic Monitoring

Diagnostic functions provide additional information about selected process and device conditions.

Key Features

Up to 0.025% Accuracy

Selected configurations provide up to 0.025% reference accuracy for demanding measurement applications.

Up to 800:1 Rangedown

Wide rangedown provides greater flexibility when measurement requirements change across the process.

Up to 20-Year Stability

Selected configurations are designed for extended measurement stability over long operating periods.

Bluetooth® Connectivity

Wireless connectivity provides convenient access for configuration and field device interaction.

Graphical Backlit Display

The local display makes process values and device information easier to view.

4–20 mA HART® Communication

Provides a familiar communication interface for industrial control and instrumentation systems.

Integral Relay Options

Selected configurations can combine pressure measurement with relay-based switching functionality.

Advanced Diagnostic Capabilities

Process Intelligence

Provides additional process information to help users understand changing operating conditions.

Plugged Impulse Line Detection

Helps identify potential impulse-line blockage that could affect pressure measurement.

Loop Integrity

Provides information about electrical loop conditions that may influence signal performance.

Process Alerts

Highlights selected process or device conditions that may require operator attention.

Proof-Test Support

Available proof-testing functions can assist with instrument verification and maintenance activities.

Measurement Capabilities

Differential Pressure

Measures the pressure difference between two process points for applications such as flow and level measurement.

Gauge Pressure

Measures process pressure in relation to atmospheric pressure.

Absolute Pressure

Measures pressure against an absolute vacuum reference.

Flow Measurement

Specific configurations can support differential-pressure-based flow measurement.

Level Measurement

Suitable configurations can support pressure-based level measurement in process vessels and systems.

Connectivity and Field Configuration

4–20 mA HART®

Supports integration with established industrial measurement and control systems.

Bluetooth®

Provides wireless access to device information and configuration functions where supported.

Local Display

The graphical backlit display provides convenient access to process and device information.

Design for Industrial Applications

Hermetically Welded Sensor Platform

The welded sensor construction is designed to support operation in demanding industrial environments.

Pressure Protection

The sensor architecture is designed to help manage the effects of pressure-related stresses on measurement performance.

Flexible Configurations

Multiple configurations allow the transmitter to be selected according to measurement type, range and application.

Safety Options

Selected configurations are available with SIL 2/3 certification options for applicable safety-related applications.

Technical Specifications

Specification

Details

Product Type

Pressure Transmitter

Measurement Types

Differential, Gauge & Absolute

Reference Accuracy

Up to 0.025%

Rangedown

Up to 800:1

Stability

Up to 20 years

Communication

4–20 mA HART®

Wireless Connectivity

Bluetooth®

Display

Graphical Backlit Display

Diagnostics

Process Intelligence, Loop Integrity, Plugged Impulse Line & Process Alerts

Relay Function

Available on selected configurations

Applications

Pressure, Flow & Level

Proof Testing

Available

Safety Options

SIL 2/3 configurations

Pressure Range

Configuration dependent

Specifications may vary according to the selected model and configuration.

Pressure Range and Configuration

Selecting the appropriate pressure range is important for achieving the required measurement performance.

Differential and Gauge Pressure

Selected Coplanar configurations support differential and gauge pressure measurement up to 2,000 psi (137.9 bar).

Absolute Pressure

Selected Coplanar configurations support absolute pressure measurement up to 4,000 psia (275.8 bar).

Higher-Pressure Measurement

Selected In-Line configurations can support gauge and absolute pressure measurement up to 10,000 psi.

The appropriate range and configuration should be selected according to the actual process conditions.

Industrial Applications

Oil & Gas

Supports pressure monitoring across production, processing and pipeline systems.

Chemical Processing

Suitable for pressure measurement across demanding chemical process operations.

Power Generation

Supports pressure, flow and level measurement across power-related processes.

Water & Wastewater

Helps monitor pressure and process conditions across treatment and distribution systems.

Pharmaceutical Processing

Suitable for selected process and utility measurement requirements.

Process Manufacturing

Supports pressure monitoring across automated production and processing operations.

Pump and Pipeline Systems

Helps track pressure conditions across pumping systems and connected pipelines.

Flow Measurement

Selected configurations can support differential-pressure-based flow measurement systems.

Benefits of the 4051S

Measurement Flexibility

Wide rangedown and multiple measurement options help accommodate different process requirements.

Additional Process Information

Diagnostic functions provide useful information beyond the primary pressure reading.

Convenient Field Access

Bluetooth® connectivity can simplify device access during configuration and maintenance.

Long-Term Measurement Capability

Extended stability specifications support applications requiring sustained measurement performance.

Flexible System Integration

Communication and configuration options allow the transmitter to fit different instrumentation architectures.

How to Select the Right Configuration

Identify the Measurement Type

Determine whether the application requires differential, gauge or absolute pressure measurement.

Define the Pressure Range

Consider normal, minimum and maximum process pressures before selecting the appropriate range.

Check Process Conditions

Review process temperature, media compatibility, vibration and environmental conditions.

Select Communication

Choose the communication method required by the control and monitoring system.

Consider Diagnostic Requirements

Identify the diagnostic functions that are relevant to the process and maintenance strategy.

Review the Process Connection

Confirm the required connection, materials and installation arrangement before ordering.

Installation Considerations

Choose the Installation Location

Select a location appropriate for the process, environmental and operating conditions.

Plan Impulse Lines Properly

Good impulse-line routing can help minimise measurement issues and maintenance requirements.

Consider Temperature and Vibration

Evaluate temperature variation and vibration when determining the installation position.

Allow Maintenance Access

Position the transmitter so technicians can inspect, configure and maintain the instrument when required.

Follow Installation Requirements

Installation and commissioning should follow the applicable product documentation and site procedures.

Maintenance and Troubleshooting

Review Diagnostic Information

Check available diagnostic information when unexpected measurements or alerts occur.

Inspect Impulse Lines

Examine impulse lines when blockage or unusual pressure readings are suspected.

Verify Device Configuration

Review range, output settings and relevant parameters during troubleshooting.

Check Electrical Connections

Inspect wiring and loop conditions when signal-related issues are identified.

Perform Required Verification

Follow appropriate testing and calibration procedures according to the application and maintenance plan.

When Should You Choose the 4051S?

The Rosemount 4051S is a suitable option when an application requires a combination of accurate measurement, broad rangedown, diagnostic visibility and digital connectivity.

It can be considered for new instrumentation projects, process upgrades and suitable transmitter replacement applications where the selected configuration matches the process requirements.

Before selecting a specific model, evaluate the measurement type, pressure range, process conditions, process connection, communication requirements and diagnostic needs.

Frequently Asked Questions

What is the Rosemount 4051S Pressure Transmitter?

It is an industrial pressure transmitter platform designed for pressure, flow and level measurement applications.

What accuracy does the Rosemount 4051S offer?

Selected configurations provide up to 0.025% reference accuracy.

What is the rangedown of the 4051S?

Selected configurations offer up to 800:1 rangedown.

Does the 4051S support Bluetooth?

Yes, selected configurations provide Bluetooth® connectivity for device access and configuration.

What communication does the 4051S use?

It supports 4–20 mA HART® communication.

Can the 4051S measure differential pressure?

Yes, suitable configurations are available for differential pressure measurement.

Can the 4051S measure flow?

Yes, specific configurations can support differential-pressure-based flow measurement.

Can the 4051S measure level?

Yes, suitable configurations can support pressure-based level measurement.

What diagnostics are available?

Available capabilities include Process Intelligence, Loop Integrity, Plugged Impulse Line detection and process alerts.

Does the 4051S have a local display?

Yes, selected configurations include a graphical backlit display.

What industries use the 4051S?

It is suitable for applications across oil & gas, chemical processing, power, water, pharmaceutical and process manufacturing.

Need Better Visibility Into Your Process Pressure?

Choose the Rosemount 4051S for advanced measurement, diagnostics and connectivity across demanding industrial applications.

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