Rosemount 5408 Level Transmitter

About Rosemount™ 5408 Level Transmitter

Rosemount 5408 is the new generation of non-contacting radars using FMCW technology for the highest precision level measurement.

Rosemount 5408 Level Transmitter

Dependable level measurement made easy

You need to adapt in a world of constant change. As experienced personnel retire and processes are pushed to run at tighter margins, level measurement devices must be reliable, safe and easy to use.


Emerson’s fifty years of continuous development in the field of microwaves and FMCW technology has resulted in the best there is.


With the Rosemount 5408 Level Transmitter, simplification is key: One device is suitable for liquids and solids applications. From intuitive setup wizards and actionable alerts via powerful onboard diagnostics, to the unique PTFE seal without wetted o-rings, Rosemount 5408 is engineered for ease-of-use.


The Rosemount 5408 Level Transmitter offers unrivalled reliability and seamless operation in the most challenging level measurement applications. 

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How It Works

FMCW explanation
FMCW explanation
FMCW explanation

Measurement Technology

What measurement technology does the Rosemount 5408 Level Transmitter utilize?

The 2-wire Rosemount 5408 Level Transmitter employs FMCW (Frequency Modulated Continuous Wave) radar technology.

A continuous radar signal is transmitted with the frequency increasing over time, creating a “signal sweep”. This signal is reflected from the surface back to the antenna, and the level is calculated.

FMCW explanation
How does installing Rosemount 5408 Level Transmitter with FMCW radar technology benefit level measurement applications?

The Rosemount 5408 is optimized for best sensitivity in process applications. FMCW radar technology offers superior performance by continuously emitting and receiving radar signals, allowing for precise distance and level measurements that are unaffected by environmental conditions such as temperature, pressure, or dust.

FMCW explanation
What advantages does the Rosemount 5408 Level Transmitter with FMCW radar technology offer over traditional level measurement methods?

The Rosemount 5408 with FMCW radar technology provides non-contacting level measurement, with no direct contact with process media. It offers high accuracy, reliability, and versatility and is suited for a wide range of liquid and solid applications. The Rosemount 5408 has minimal maintenance requirements and reduces the risk of measurement errors often associated with legacy mechanical devices.

FMCW explanation
Rosemount 5408 offers new levels of ease of use
Rosemount 5408 offers new levels of ease of use
Rosemount 5408 offers new levels of ease of use
Rosemount 5408 offers new levels of ease of use
Rosemount 5408 offers new levels of ease of use
Rosemount 5408 offers new levels of ease of use

Ease of Use

What types of application is the Rosemount 5408 Level Transmitter suitable for?

Use one device-type for different applications! The Rosemount 5408 Level Transmitter works for both liquid and solids applications, providing convenience and flexibility when specifying.

Rosemount 5408 offers new levels of ease of use
Are there any limitations on the material's dielectric properties?

No, the Rosemount 5408 Level Transmitter has no minimum dielectric constraints, offering compatibility across a wide range of applications.

Rosemount 5408 offers new levels of ease of use
Can the Rosemount 5408 Level Transmitter accommodate different antenna types?

Yes, the modular housing of Rosemount 5408 is designed to work seamlessly with any antenna type (cone, process seal and parabolic). Users have flexibility to choose the most suitable option for their application.

Rosemount 5408 offers new levels of ease of use
How does the Rosemount 5408 simplify operator tasks?

The Rosemount 5408 is equipped with configuration and proof-test wizards to guide users. Automatically generated proof-test reports fulfill documentation requirements. The onboard Smart Diagnostics Suite continuously monitors device health and proactively alerts if there is an issue, simplifying troubleshooting.

Rosemount 5408 offers new levels of ease of use
What is the sealing solution used in the Rosemount 5408 Level Transmitter?

The Rosemount 5408 features an o-ring free PTFE seal solution, minimizing maintenance requirements and ensuring reliable performance in demanding environments.

Rosemount 5408 offers new levels of ease of use
How does the Rosemount 5408 Level Transmitter contribute to operational efficiency and reliability?

By offering ease-of-use, advanced diagnostics, and powerful data insights, the Rosemount 5408 Level Transmitter streamlines operations, minimizes downtime, and ensures reliable level measurement performance across many industrial applications.

Rosemount 5408 offers new levels of ease of use
5408 diagnostics
5408 diagnostics

Diagnostics and Data Storage

What historical data insights are available with the Rosemount 5408 Level Transmitter?

The Historian functionality of the Rosemount 5408 enables users to access comprehensive data from the last 7 days of measurements, alerts, and echo profiles, facilitating analysis and simplified troubleshooting.

5408 diagnostics
What advanced troubleshooting capabilities does the Rosemount 5408 Level Transmitter echo curve tool offer?

The echo curve tool functionality of the Rosemount 5408 provides intuitive advanced troubleshooting capabilities, helping users diagnose and resolve issues quickly and efficiently.

5408 diagnostics
What diagnostics does the Rosemount 5408 Level Transmitter offer?

The on-board Smart Diagnostics Suite comprises  of Signal Quality Metrics (SQM). SQM provides early alerts for issues such as antenna build-up, weak power supply, or abnormal surface conditions, enabling proactive maintenance and minimizing downtime.

Smart Meter Verification continuously monitors transmitter health without process interruption provides a documented health check without interrupting the process.

Rosemount 5408:SIS SIL 2 certified
Rosemount 5408:SIS SIL 2 certified
Rosemount 5408:SIS SIL 2 certified

Dedicated to Safety

What safety certification does the Rosemount 5408:SIS hold?

Rosemount 5408:SIS is safety certified for SIL 2 applications according to the IEC 61508 standard, making it an ideal choice for critical functional safety applications such as overfill prevention.

Rosemount 5408:SIS SIL 2 certified
How does the Rosemount 5408:SIS support safety and compliance?

Rosemount 5408:SIS supports long proof-test intervals to suit your schedule, ensuring minimal disruption to operations while maintaining safety standards. It can be proof-tested remotely, in-situ and without process interruption, enhancing worker safety and ensuring compliance.

Rosemount 5408:SIS SIL 2 certified
How does the Rosemount 5408:SIS Level Transmitter ensure easy identification for safety purposes?

The Rosemount 5408:SIS features a yellow waist for easy visual recognition, aiding quick identification of safety-critical equipment and enhancing overall safety awareness.

Rosemount 5408:SIS SIL 2 certified
Rosemount 5408 Level Transmitter
Rosemount 5408 Level Transmitter
Rosemount 5408 Level Transmitter
Rosemount 5408 Level Transmitter

Solids Measurement

Can the Rosemount 5408 Level Transmitter measure solids as well as liquids?

Yes, one device is suitable for both applications! The Rosemount 5408 Level Transmitter is designed to accurately measure both solids and liquids, offering versatility in various industrial applications.

Rosemount 5408 Level Transmitter
How does the Rosemount 5408 Level Transmitter ensure accurate solids measurement?

Rosemount 5408 utilizes advanced FMCW radar technology to provide precise and reliable measurements of solid materials, ensuring accuracy and consistency in solids level monitoring. The continuous echo to maximizes radar signal strength to produce a more robust and reliable measurement. Advanced surface tracking ensures the level reading is correct.

Rosemount 5408 Level Transmitter
What antenna options are available for solids level measurement with the Rosemount 5408 Level Transmitter?

Rosemount 5408 offers three antenna options: Cone, parabolic, or process seal, providing flexibility to operate reliably in various demanding applications, including those involving bulk solids.

Rosemount 5408 Level Transmitter
What antenna options are available for solids level measurement with the Rosemount 5408?

The Rosemount 5408 offers three antenna options: cone, parabolic, or process seal, providing flexibility to operate reliably in various demanding solids applications. The air purging system ensures that dust blockage of the antenna is avoided.

Rosemount 5408 Level Transmitter
Cone antenna, Process seal antenna, Parabolic antenna
Cone antenna, Process seal antenna, Parabolic antenna

Hygienic Measurement

Does the Rosemount 5408 Level Transmitter meet requirements for measurement in hygienic applications?

Yes, Rosemount 5408 is designed to meet hygienic requirements, making it suitable for applications where a sanitary design is necessary. It has 3-A Sanitary approval, confirming its compliance with stringent hygienic standards for use in sanitary applications.

Cone antenna, Process seal antenna, Parabolic antenna
What features make the Rosemount 5408 ideal for hygienic applications?

Rosemount 5408 features a Tri-Clamp process connection and a process seal antenna, ensuring a hygienic design that meets the specific requirements of sanitary applications.

Cone antenna, Process seal antenna, Parabolic antenna
Radar Wave

The impact of frequency in non-contacting radar level measurement

Understand how frequency affect measurement quality and which frequency to choose for your application.

Learn More
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