Level Measurement of Raw Coal Piles at Coal-Fired Power Plants
Accurately measure pile levels of raw coal with non-contacting radar despite the challenge of irregular surfaces.
Level Monitoring with Non-contacting Radar and Point Level Technology
In raw coal yards or warehouses, raw coal is delivered in aggregate pieces of approximately 15 cm (6 in). Pieces are later reduced in size by a crusher to approximately 4 cm (1.5 in). The raw coal is stored in stock piles which have irregular surfaces and can cover large areas, making reliable level-measurement a challenge.
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Product Solutions
The Rosemount™ 5408 Non-Contacting Radar Level Transmitter uses enhanced technology and Human Centered Design to deliver accurate, reliable measurements on both liquid and solid materials. Using two-wire FMCW and Smart Echo Supervision technologies, the Rosemount 5408 deploys a continuous echo to maximize radar signal strength and produce a more robust and reliable measurement. Delivering ease-of-use at every touch point, the Rosemount 5408 uses an intuitive software interface to guide the operator through installation, commissioning, proof-testing and maintenance. Powerful onboard diagnostics suite proactively monitors transmitter health and alerts if there is an issue. Safety certified to IEC 61508 for SIL 2 applications, the Rosemount 5408:SIS reduces cost of risk, increases efficiency and protects people and the environment.
- With Smart Echo Supervision™ technology, Rosemount Non-Contacting Radars automatically track all echoes, including those from obstructions in the vessel, and distinguish them from the real product surface echo. This ensures the true product level is reliably and accurately reported.
- Low 12V dc lift-off voltage
- Immune to intermittent power loss
Accuracy
Standard: ± 0.08 in. (± 2 mm)
Ultra accuracy: ± 0.04in. (± 1mm)
Ultra accuracy: ± 0.04in. (± 1mm)
Measurement Range
492 ft (150m), 82 ft (25 m) for Rosemount 5408:SIS in Safety mode
Operating Pressure
-15 to 1450 psi (-1 to 100 bar)
The Rosemount 2501 Solids Level Switch withstands heavy loads and extreme temperatures, and is suitable for full, demand or empty detection for all bulk media in all types of vessel. It is a simple, robust and reliable technology that is insensitive to dust, electrical charge, adhesion, extreme temperature and pressure. It is simple to install and can be mounted in a vertical, horizontal or oblique position.
- Robust paddle design able to withstand heavy loads and extreme temperatures
- Mechanically stable shaft bearing design
- Unaffected by dust, electrostatic charging and caking
Operating Pressure
145 psi (10 bar)
Operating Temperature
-40 to 2012°F (-40 to 1100 °C)
Certifications/Approvals
CE, ATEX, IECEx, FM, CSA
The Rosemount 2555 Solids Level Switch is robust and suitable for all solids bulk media in all types of vessels. It can be used for full, demand or empty detection and is designed for low dielectric medias and extreme conditions such as high temperatures, high mechanical stress and high tensile forces.
- Suitable for most bulk materials in various applications even with high temperature and pressure
- "Active Shield Technology" protects against media build up or caking to ensure complete reliability
- Measurement of medias with dielectric constant down to 1.5
Operating Pressure
363 psi (25 bar)
Operating Temperature
-40 to 932°F (-40 to 500°C)
Certifications/Approvals
CE, ATEX, IECEx, FM, FMc, EHEDG
