Level Measurement Solutions for Sulfur Pits
Continuous level measurement solutions for the refining industry
Accurate Level Measurement in Heavy Vapors
Elemental molten sulfur is removed as a by-product of desulfurization process in refineries. The collection tanks must be kept hot in order the keep the sulfur fluid. Semi-molten solid is kept hot and well insulated. The sulfur vapors can be heavy and will condense in cooler areas, so the challenge is to minimize the condensation. Use Rosemount 5408 with cone antenna or process seal antenna. If mounted on a nozzle, the nozzle should be well insulated, and heat traced to reduce sulfur condensation. Insulate and heat-trace the nozzle to reduce the amount of build-up. If possible tall nozzles should be avoided. A Rosemount 5408 with parabolic antenna may also be used. The antenna should be inside the vessel. This will minimize potential crystallization or build-up. Signal quality metrics may be used to monitor signal strength to determine if cleaning of antenna or probe is needed.
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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 technology 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.
- Low 12V dc lift-off voltage
- Immune to intermittent power loss
- Unique PTFE seal design eliminates the need for o-rings
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 3408 Non-Contacting Radar Level Transmitter is a versatile FMCW radar suitable for level measurement and overfill prevention in many industries, including chemical. Smart features save time and maximize efficiency for trouble-free operations, simplifying commissioning, operation and testing. Smart diagnostics help you proactively plan maintenance and optional Bluetooth® connectivity allows convenient configuration and maintenance. Manual or automatic verification at scheduled intervals can be conducted from the control room at any time without process interruptions. Perform proof-testing remotely and in-situ with onboard functionality. NAMUR type tested and third party certified to IEC61508 for use in safety critical applications.
- Lens antenna available for very small process fittings (3/4") and with optional bracket mount
- All PTFE wetted parts allow for use in harsh conditions, such as corrosive medias
- Convenient configuration and maintenance using optional Bluetooth technology
Accuracy
Standard: ± 0.08 in. (± 2 mm)
Ultra accuracy: ± 0.04 in. (± 1mm)
Ultra accuracy: ± 0.04 in. (± 1mm)
Measurement Range
98 ft. (30 m), 49 ft. (15 m) for the IEC 61508 certified version
Operating Pressure
-15 to 363 psig (-1 to 25 bar)
