Level Measurement for Marine Fuel Methanol Tanks
Marine level measurement using modern radar technology increases safety and efficiency
Solutions to address customer challenges with marine level measurement
The use of methanol in the marine industry has been picking up in the last few years, and many companies are investing in methanol-propelled ships. When methanol is used for fuel, it needs to comply with the IGF code, IMO – MSC.1/Circ. 1621 Interim Guidelines for the safety of ships using methyl/ethyl alcohol as fuel and rules and regulations for the classification of ships using gases or other low-flashpoint fuels. Methanol is toxic and highly flammable and needs to be handled with care.
Radar-based solutions are the ideal technology. It is reliable and commonly used for large marine fuel tanks. Another strength is that only one level device is needed since the electronics can be replaced without compromising the tank integrity. In comparison, technologies that require tank entry in case of malfunction, more devices are needed.
Retrofitting machinery onboard to facilitate methanol is more and more common.
Click to continue reading Solutions to address customer challenges with marine level measurement
Product Solutions
With Rosemount TGU 68 Tank Radar Gauge you can trust to get accurate and reliable measurement that keeps you operating under the most difficult conditions in the tank and on the deck. This 26 GHz FMCW radar gauge is robust and prepared for optional redundant level or independent high level and/or overfill alarm measurements. Even in severe conditions, when you most depend on accuracy, you get the trusted performance and reliability that only 30 years of marine experience can bring.
- Accurate and reliable measurement that keeps you operating under adverse conditions in tank and on deck.
- 26 GHz FMCW tank radar, with advanced signal processing, high bandwidth and optimized parabolic antenna.
- For tankers and offshore installations with 35 m measurement range.
Operating Temperature
-40 to +100 C° (increased to +260 C° when mounted on TGS6810)
Reference Accuracy
± 2 mm
Weight
17 kg.
Gain vital operating information from your Rosemount CMS Tank Radar Gauges. The Rosemount Supply and Communications Unit (SCU) acts as a connection hub that collects and stores data from gauges and sensors, and serves clients with requested data. The unit is self-contained with provisions for intrinsically safe connection to external units. The unit stores configuration data of connected devices. Up to 68 tank channels can be connected.
- Engineered to supply intrinsically safe power to the Tank Radar Gauges and auxiliary equipment.
- Stores configuration data of the connected devices.
- Collects and stores data from gauges and sensors and serves clients with requested data.
Enclosure Rating
IP22
Operating Temperature
0 to 35 °C
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.
- 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 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.
- 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.
- 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
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)
Operational continuity is key for your ship’s long-term success. With Aperio Software you get a single point overview of your ship’s systems, which improves your ability to plan, control, monitor and react to alarms. It’s designed to manage a variety of stand-alone systems for tank monitoring, valve and pump control fuel management and alarm acquisition. The Aperio is highly scalable and flexible with customizing capabilities for most any combination of tasks, for most any size of vessel.
- Specifically designed as Integrated Control & Monitoring System for Ships and Offshore Units to optimize ship handling
- Focused on planning, control, monitoring and alarm functionality with unique icon to identify various functions
- Dual User interface color themes enhance usability and safety
Operating System
Windows 7 Embedded
CPU Specifications
CPU Requirements: Single or multicore, 1.9 GHz or higher
RAM requirements: 2 GByte or more
Hard Disk requirements: 8 GByte or more
RAM requirements: 2 GByte or more
Hard Disk requirements: 8 GByte or more
