Level Measurement for IMO Type C Tank Single Shell for LPG
Marine level measurement using modern radar technology increases safety and efficiency
Solutions to address customer challenges with marine level measurement
The use of LPG in the marine industry has been topical for a few years and is most used on LPG carriers. With changing trends, the new fuel applications are more demanding when it comes to level measurement compared to conventional fuel tanks. For new applications, there is no solution to fit them all; instead, a variety of solutions is needed.
Single shell type C tanks with a tank volume of less than 1000 m³, and operational temperature and pressure at -48°C to 20°C and up to 20 bar and less than 15 m in height, are feasible to be used for LPG. Radar technology is ideal for this application since it has a vertical cold box with process connections on top of the tank. Solutions used for this application must be IGF code compliant and approved by marine class societies.
Click to continue reading Solutions to address customer challenges with marine level measurement
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 5300 Level Transmitter is ideal for challenging measurements on liquids, slurries, and solids, offering state of the art reliability and safety features in level and interface applications. Rosemount 5300 offers several advantages such as easy installation, no need for calibration, and is unaffected by process conditions. Also, it is SIL 2 certified making it your first choice for safety applications. It has a robust construction and features powerful built-in diagnostics allowing you to focus on the essential part - your plant.
- Direct Switch Technology gives increased sensitivity, high reliability, and long measurement ranges
- Signal Quality Metrics gives you the ability to work proactively with your level instrumentation
- Probe End Projection offers greater level measurement reliability
Accuracy
± 0.12 in. (3 mm)
Repeatability
± 0.04 in. (1 mm)
Measurement Range
Up to 164 ft (50 m)
Your profitability and reputation as an LNG operator demands buyer-seller agreement accuracy. The Rosemount TGU 53 Tank Radar Gauge is built for the task. The radar transmission is guided through a full length still pipe measuring the surface of the product and the patented array attenuator ensures accurate readings from the very bottom of the tank. Using the accurate and reliable TGU 53 you can perform your cargo transfer with complete trust. With dual channel technology primary and secondary level measurements are enabled by two independent radars, yet in one housing and a single still pipe installation. Single tank penetration makes for affordable new and retrofit installation.
- 5th generation of proven, industry-leading marine radar performance
- Minimized footprint and efficient installation with all CTMS functions in a single housing
- Safe operating redundancy with dual radar channel technology
Reference Accuracy
± 3mm
Weight
33 kg
Enclosure Rating
IP66
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
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
