Level Measurement & Control

Bluetooth-enabled radar level transmitter

March 2023 Level Measurement & Control

Emerson has introduced the Rosemount 3408 Level Transmitter, a non-contacting radar device designed to optimise ease of use at every touchpoint, leading to increased site and worker safety and enhanced plant performance. The Rosemount 3408 is a versatile level measurement solution, suitable for use in a wide range of industries and applications, such as chemical storage, mixing tanks, and open air applications.

While the benefits of radar level measurement are widely acknowledged, leading to the technology’s fast-growing adoption across multiple industries, radar operated devices are still sometimes perceived as being complex to commission, operate and maintain. Addressing this concern, the device provides a range of functions that reduce complexity throughout its lifecycle, including a highly intuitive interface, Bluetooth wireless technology remote capabilities, predictive alerts, in-situ verification, data historian, and an upgradeable design.

The user interface provides clear pictorial instructions, allowing operators to be easily guided through installation, commissioning, proof-testing, operation and maintenance. This increased ease of use gives process and manufacturing organisations the confidence to replace time-consuming manual procedures, thereby helping to increase safety and maximise productivity.

The new device is based on frequency modulated continuous wave (FMCW) technology, which enables extremely accurate and reliable measurement, even in challenging process environments. It is also suitable for use in critical safety applications such as overfill prevention, as it is Safety Integrity Level (SIL) 2-certified and designed according to the International Electrotechnical Commission’s IEC 61508 standard relating to functional safety.

Emerson’s proprietary Smart Meter Verification software provides an easy means of verifying the health of the device, without interrupting the process. Official records of device verification are generated, simplifying compliance with regulatory requirements. In addition, an advanced diagnostics suite continuously monitors key device health and process parameters. This provides actionable information and predictive alerts that support preventive maintenance strategies, streamline troubleshooting, and help increase process availability. A built-in historian enables users to access stored process data and alerts to gain process insights and aid troubleshooting.

The transmitter can be proof-tested remotely and in-situ, which makes the procedure quick and easy, saving time and increasing plant and worker safety. In the event of device failure, its exchangeable design enables the simple replacement of a cassette within the transmitter housing, rather than replacing the entire transmitter head. This saves both time and materials, making the device extremely cost-effective.

“The new generation of engineers expects modern automation technology to be very easy to implement, operate and maintain,” said Thense Korsbo, director of product management for Emerson’s radar level measurement business. “The onus is therefore on us to provide solutions that simplify operator tasks as much as possible, especially in safety-critical applications such as overfill prevention, and this was Emerson’s focus when designing the Rosemount 3408. This optimised ease of use will help organisations improve plant efficiency, reach their production targets, and achieve the highest levels of safety.”


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