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Emerson introduces Rosemount[R] transmitter with "Radar Echonomics[TM]" technology for unique level measurement reliability and user cost savings.

The Rosemount[R] 5400 introduced by Emerson Process Management is the first radar transmitter to offer peak performance in all three areas vital to radar level measurement:

Echosensitivity--the ability to detect weak radar echoes reliably; Echodynamics--the ability to handle weak and strong radar echoes simultaneously; and Echologics--the ability to ignore false echoes Naming the technology "Radar Echonomics[TM]," the company guided its innovative development to maximise operational benefits and user cost savings.

High Echosensitivity means increased measurement reliability even under changing process conditions such as turbulence, vapours, foam and condensation. Echosensitivity is achieved by combining a number of new technologies. One example is the transmitter's Condensation Resistant Antenna. It is based on a larger active seal surface towards the tank making the transmitter more tolerant to dirt and condensation. New signal processing features in the transmitter separate surface echoes from false echoes to increase measurement reliability and reduce commissioning time and cost. By using "Measure and Learn" technology, suggestions for threshold and disturbance echo settings are automatically generated. The setup software also includes a spectra plot with "movie mode."

In most process tanks, strong and weak radar echoes coexist. The echo from a turbulent fluid surface being agitated may be significantly weaker than the echo from the agitator. In order to take accurate readings, the radar sensor must be able to continuously track the weaker surface echo. This capacity, Echodynamics, means more reliable measurements and less process down-time during difficult measuring conditions.

Traditional 2-wire radar gives the benefits of having no moving parts and no contact with the liquid being measured. The measurement is unaffected by temperature, pressure and product density For a process plant, the additional Radar Echonomics qualities of the Rosemount 5400 enable higher productivity, reduced cost of ownership, and increased process availability. Engineering and installation expenditures, and operating and maintenance expenditures are reduced.

The Rosemount 5400 Series is available in two models to increase application range: the Rosemount 5401, Low Frequency Transmitter (~ 6 GHz), is used in applications with turbulence, heavy vapours, foam or where there is a risk for deposits on the antenna. The Rosemount 5402, High Frequency Transmitter (~ 26 GHz) utilizes a narrower radar beam for installations that have tall or narrow nozzles, where the nozzle is close to the tank wall, or to avoid disturbing objects the tank.

The Rosemount 5400 series is part of Emerson's broad range of intelligent, digital field devices that power the PlantWeb[R] digital plant architecture to improve plant efficiency by 2% and more through delivering asset optimisation, process automation, and management execution. Further cost savings, increased plant availability, and enhanced safety and environmental compliance are achieved when the level transmitters are integrated into the PlantWeb architecture.

Contact Emerson Process Management on tel: 0870 240 1978 or visit
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Title Annotation:PLANT & EQUIPMENT
Publication:Food Trade Review
Date:Jul 1, 2005
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