The ROTAMASS TI Supreme combines Yokogawa’s advanced Coriolis technology with Insatech Marine’s field expertise. Engineered for demanding medium-flow environments, it delivers unmatched precision and reliability in the toughest engine rooms.
Key Advantages:
Superior Aeration Handling
Field-Proven Reliability
DNV-GL Approved.
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The Yokogawa ROTAMASS TI Supreme is engineered for versatility. While it excels in any medium-flow environment, its design is specifically optimized for high-stakes maritime and process engineering tasks where precision directly impacts the bottom line.
Advanced Fuel & Energy Management
In the marine industry, fuel is the largest operating expense. The ROTAMASS TI Supreme provides the accuracy required for:
Fuel Consumption Measurement: Real-time monitoring of HFO, MDO, and LNG to optimize engine performance.
Bunker Operations: High-precision mass flow measurement during fuel transfer to ensure you receive exactly what you pay for.
Burner Control: Maintaining the exact air-to-fuel ratio for optimal combustion and reduced emissions.
For industrial chemical and pharmaceutical applications, the meter’s ability to handle demanding conditions ensures consistency:
Batching & Dosing: High-speed response times for precise filling of chemicals or solvents.
Feed and Product Control: Maintaining steady-state flow in continuous production lines.
Loss Control: Identifying leaks or inefficiencies in material and mass balances across complex systems.
In-Line Fluid Analytics (Concentration & Density)
The ROTAMASS TI Supreme is more than a flow meter; it is a real-line analyzer.
Net Oil Computing: Integrated API standards to calculate the volume of clean oil in a water/oil mixture.
Water Cut Monitoring:Crucial for upstream and midstream oil & gas applications.
Gas Void Fraction (GVF): The "Supreme" diagnostics manage entrained gas (bubbles) in the liquid, providing reliable density readings where other meters fail.
Concentration Measurement: Monitoring Brix, Plato, or acid/base concentrations in real-time.
Optimized Marine Fuel Management with Coriolis Technology
Fuel is the single largest operating cost for any vessel. The Yokogawa ROTAMASS TI Supreme is the core component ofInsatech Marine’s performance systems, engineered to deliver precision in the most volatile engine room environments.
Engineered for the Marine Environment
Ships are high-vibration environments. Standard Coriolis meters often struggle with "noise" and mechanical stress, leading to measurement drift. The ROTAMASS TI Supreme addresses this with its Patented Box-in-Box Design.
Vibration Immunity: The dual-case design isolates the measuring tubes from ship-born vibrations and piping stress.
Space-Saving Installation: Unlike volumetric or ultrasonic meters, the ROTAMASS requires zero straight pipe runs, allowing for easy retrofitting in cramped engine rooms.
DNV Certified: Fully Type Approved by DNV (formerly DNV-GL), ensuring the meter meets the rigorous safety and quality standards required for global maritime operations.
Eliminating Calculation Errors
Traditional fuel measurement relies on volume, which fluctuates with temperature and density. By utilizing theCoriolis Principle, the ROTAMASS TI Supreme provides direct mass measurement:
No Compensation Needed: Eliminates the need for external temperature sensors or density manual entries, removing the risk of "human error" in fuel reporting.
High Turndown Ratio: Maintains precision from high-flow bunkering down to low-flow idling, outperforming traditional mechanical meters across the entire engine load range.
Total Health Check: Features built-in self-diagnostics that monitor the meter’s internal integrity, ensuring your data is "audit-ready" for MRV and IMO DCS compliance.
Decouples measurement from hull vibration and pipe stress.
Field-Proven
Validated by over 1,000 vessel installations worldwide.
Maintenance-Free
No moving parts to wear out or clog from heavy fuel oil (HFO).
Multi-Variable Output
Simultaneous real-time measurement of mass, density, and temperature.
Fast Commissioning
Pre-configured for marine applications to ensure a "plug-and-play" experience.
Precision Without Complexity: Direct Measurement
Traditional flow systems often require a "chain" of components - temperature sensors, pressure transmitters, and flow computers - to calculate mass flow. Every link in that chain is a potential point of failure or miscalculation.
Eliminate Calculation Drift:The Yokogawa ROTAMASS provides direct mass and density signals. By removing the need for external compensation, you eliminate the mathematical "offsets" that occur as fuel temperature or viscosity fluctuates.
Tamper-Proof Data: Direct signals from the meter to your monitoring system (like a Fuel Management System) reduce the risk of manual data manipulation, ensuring your MRV and IMO DCS reporting is audit-ready and accurate.
Advanced Diagnostics: Integrated self-monitoring provides real-time health checks, alerting the crew to sensor issues before they impact performance data.
Resilience in Marine Environments
While many Coriolis meters are sensitive to the physical stresses of a vessel - such as thermal expansion of piping, hull torque, and engine vibration - the ROTAMASS TI Supreme is purpose-built for these conditions.
The Box-in-Box Advantage: Our patented dual-case design acts as a mechanical "decoupler." The outer casing absorbs the external stresses of the engine room, allowing the inner measuring tubes to oscillate freely and accurately.
Reduced Installation Costs: Because the meter is immune to most piping stresses, it does not require the expensive, space-consuming "support frames" or specialized alignment often needed by inferior meters.
Mechanical (Positive Displacement) meters are prone to wear and clogging, especially when handling Heavy Fuel Oil (HFO) with highsulfur or catalytic fines. The ROTAMASS TI Supreme changes the maintenance paradigm:
No Moving Parts: With no rotors, gears, or bearings to wear out, the internal risk of breakdown is virtually zero.
Filter-Free Installation: Unlike volumetric meters that require fine-mesh strainers (which frequently clog and cause pressure drops), the ROTAMASS sensor is insensitive to particles in the fuel stream.
Crew Efficiency: By eliminating filter cleanings and periodic recalibrations, your crew can focus on mission-critical performance tasks rather than routine instrument maintenance.
The Strategic Investment: TCO vs. Purchase Price
In maritime instrumentation, the "cheapest" option often becomes the most expensive over a 5-year lifecycle. When evaluating the ROTAMASS TI Supreme, we encourage owners to look at theTotal Cost of Ownership (TCO):
Cost Factor
Traditional Volumetric Meter
Yokogawa ROTAMASS Supreme
Initial Investment
Lower
Higher
Installation
Requires straight runs/filters
Flexible / No filters
Maintenance
High (Parts + Crew Time)
Zero
Pressure Drop
Significant (Higher Pump Load)
Minimal
Accuracy Drift
Increases with mechanical wear
Stable over lifetime
Conclusion: Cutting costs on the initial purchase often leads to higher fuel slippage, increased maintenance man-hours, and unreliable data. Selecting the ROTAMASS TI Supreme is an investment in long-term vessel efficiency and regulatory compliance.
Future-Proofing Your Vessel: Strategic Instrument Selection
Selecting a flow meter is a decision that impacts a vessel's operational expenses (OPEX) for a decade or more. AtInsatech Marine, we guide owners to choose instruments that don't just meet today’s requirements but are scalable for future environmental regulations and digital transformation.
Integral vs. Remote Mounting: TheInsatech Standard
For most onboard engine room installations,Insatech Marine recommends a remote-mounted transmitter setup (where the converter is separated from the flow tube).
Vibration Decoupling: By separating the sensitive electronics (transmitter) from the fuel line (sensor), we significantly increase the lifespan of the instrument. This protects the converter from the constant high-frequency vibrations and thermal stress of the engine room piping.
Ease of Access: Remote mounting allows the display and controls to be placed at eye level for the crew, rather than tucked away in hard-to-reach piping runs.
Maintenance & Service: If the electronics ever require service, they can be accessed without disturbing the pressurized fuel line or the sensor itself.
Scalability and "Features on Demand"
The maritime industry is shifting toward data-driven reporting (CII, EEXI, and EEOI). Choosing the ROTAMASS TI Supreme ensures your vessel is ready for these changes:
Software-Ready Upgrades: Through "Features on Demand," you can unlock advanced functions like Viscosity or Batching via a software key, without the need to replace physical hardware.
Avoid "Early-Stage" Obsolescence: While a low-cost, basic meter may work for simple flow indications today, it often lacks the digital output and diagnostic depth required for future performance monitoring systems, leading to expensive retrofitting costs later.
The Financial Logic of Quality
In a "low-cost" setup, the initial savings are often eclipsed by the cost of time spent on troubleshooting, frequent zero-point adjustments, or premature failure due to vibration fatigue. A future-proven instrument ensures:
Lower Retrofitting Costs: One installation that lasts the lifetime of the vessel.
High Data Integrity: Reliable data for fuel audits and bunkering claims.
Crew Confidence: Minimal interaction required with the device once commissioned.
The Science of Precision: How Coriolis Technology Works
The Coriolis effect is a universal physical phenomenon that occurs when a mass moves within a rotating or oscillating frame of reference. In the Yokogawa ROTAMASS, this principle is harnessed to provide the most accurate flow data available to the maritime industry.
Controlled Oscillation
Inside the meter, a set of dual U-shaped sensor pipes is vibrated by an electromagnetic drive coil at their natural resonant frequency.
Measuring Mass Flow: The Phase Shift
At Zero Flow: When the fuel is stationary, the upstream and downstream sections of the pipes oscillate in perfect synchronization.
During Active Flow: As fuel moves through the vibrating tubes, the Coriolis force is generated. This force acts in opposite directions on the inlet and outlet legs of the tubes, causing them to "twist."
The Result: Highly sensitive pick-up coils detect a time delay—or Phase Shift—between the two ends of the pipe. This shift is directly proportional to the mass flow rate. Because it measures mass (inertia) rather than volume, the reading remains accurate regardless of changes in temperature, pressure, or viscosity.
Measuring Density: Resonant Frequency
Simultaneously, the meter monitors the frequency at which the tubes vibrate.
The mass of the tubes plus the mass of the fluid inside them determines the vibration frequency.
A heavier fluid (higher density) causes the tubes to vibrate more slowly, while a lighter fluid allows for a higher frequency.
By measuring this frequency, the ROTAMASS provides a continuous, high-precision density measurement in real-time.
Advanced Diagnostics: Drive Gain
The amount of energy (current) required to keep the tubes oscillating at their resonant frequency provides further insight into the process. Sudden increases in "Drive Gain" can indicate the presence of entrained air or gas (slug flow), allowing the ROTAMASS to alert the crew to aeration issues that would compromise standard volumetric meters.
As a universal solution for liquid and gas flow, the Yokogawa ROTAMASS TI Supreme is engineered to handle the full spectrum of marine fluids, ranging from heated Heavy Fuel Oil (HFO) to cryogenic Liquid Natural Gas (LNG). This versatility makes it the cornerstone of comprehensive fuel management, providing high-precision measurement for bunkering, fuel transfer, and consumption monitoring across all fuel grades, while simultaneously offering the precise tracking required for lube oil monitoring and optimized vessel maintenance.
For vessels operating in volatile environments, the system ensures complete safety with ATEX, IECEx, and FM certifications for hazardous area compliance. The engineering of the ROTAMASS TI Supreme also prioritizes seamless retrofitting and installation; its compact footprint requires no straight piping runs (0 x D), allowing it to be integrated into the tightest engine room configurations. Operators benefit from flexible orientation options, supporting both horizontal and upwards-vertical flow to ensure the measuring tubes remain full, while advanced aeration handling allows the meter to maintain accuracy even in real-world conditions where air-free liquids cannot be guaranteed.
Uni-Tankers Documents the Impact of Optimization Initiatives
In 2011 Insatech Marine initiated a collaboration with Uni-Tankers as their advisor and component supplier. Uni-Tankers is known for their innovative approach to ship operations and their constant pursuit of optimizations, like using special paint on the hull and many other optimization projects – and the only way to get insights into the effect of these initiatives is to measure fuel consumption.
Insatech Marine Solution Helps Shipping Line Reduce Fuel Consumption
Since 2014 Insatech Marine has installed more than 1,500 mass flow meters and data collection on 200+ vessels for an international shipping line to give a more detailed insight into the vessels fuel consumption to save cost and reduce their CO2-emission.
Optimization of Fuel Measurement at Christiania Shipping
Christiania Shipping improved fuel transparency and operational efficiency by upgrading to high-accuracy Coriolis mass flow measurement on both supply and return lines. The solution eliminated uncertainty caused by density and temperature variations, enabling precise net fuel consumption calculation. The result was reliable performance monitoring, stronger fuel cost control, and a scalable solution for fleet-wide optimization.
The ROTAMASS TI Supreme features a unique, patented "Box-in-Box" design that sets it apart from standard Coriolis meters. In the volatile environment of a vessel's engine room, this construction is essential for maintaining metrological integrity.
How it protects your data:
Structural Isolation: The outer casing handles all process connections and absorbs external stresses from pipe misalignment, thermal expansion, and hull torque.
Mechanical Decoupling: The inner casing houses the sensitive measuring tubes, completely isolating them from the "noise" of the piping system.
Stable Zero-Point: By diverting external forces around the sensor piping, the meter maintains an exceptionally stable zero-point, significantly reducing the frequency of recalibrations compared to single-case meters.
Technical Stewardship: From Installation to Lifecycle Support
AtInsatech Marine, our expertise extends far beyond the hardware. We ensure that your instrumentation delivers maximum value through every stage of its operational life.
1. Precision Installation & Commissioning
While the Box-in-Box design offers greater tolerance for pipe stress, maritime installations still require precision. We offer flexible support levels to match your fleet's needs:
Technical Guidance: Remote or on-site supervision to ensure your crew installs the meter for optimal performance.
Turnkey Implementation: Our specialized technicians can handle the entire mechanical and electrical installation process.
Certified Commissioning: We finalize the setup and verify all signals, ensuring the meter is perfectly integrated into your vessel's fuel management or automation systems.
2. Global After-Sales Support
Our commitment to your vessel doesn't end at the shipyard. We provide a comprehensive service ecosystem to ensure long-term ROI:
Expert Troubleshooting: Rapid response for fault-finding and signal diagnostics.
Performance Audits: Periodic health checks to ensure your fuel data remains audit-ready for regulatory compliance.
Extended Reliability: By choosingInsatech, you benefit from decades of maritime experience, ensuring your Coriolis setup remains a high-performing asset for the life of the vessel.
The ROTAMASS TI product family uses a common transmitter platform with two options that give you the highest flexibility.
The Essential transmitter is the cost effective solution for general applications. The Ultimate transmitter provides various additional features to give you the best possible measurement, and is used for demanding & critical applications.
Essential Transmitter
Multilingual wizard for easy setup and guidance through the main configuration
“Event Management” as unique and useful support to run the process effectively and safely
Data mobility provided by microSD card for easy transfer to other devices for fast setup or to pc for in-dept process analysis or remote service
Widest range of I/O combinations in the market for most flexible adjustment to the existing system periphery
Universal power supply to install the device anywhere in the world
Hart, Modbus communiction
NAMUR NE95 compliance, SIL 2 and SIL 3 compliance
Ultimate Transmitter
Patented “Tube Integrity” function and “Total Health Check” for inline meter verification without disturbing running measurements
“Features on demand” for easy expansion of special functions via software activation key
Batching function and Viscosity function
“Dynamic Pressure Compensation” for consistently accurate and stable measurement even with significant fluctuations in operating pressures
Inline concentration measurement
Integrated net oil computing acc. API standard
Hart, Modbus, Foundation Fieldbus, Profibus PA communication
Consult with Our Marine Instrumentation Experts
Optimizing fuel consumption and ensuring regulatory compliance requires more than just a meter - it requires a partner with deep maritime experience. Whether you need a technical consultation for a complex retrofit, a quote for a newbuilding project, or global service support, our specialists are ready to assist.
What is the Yokogawa ROTAMASS TI Coriolis flow meter?
The ROTAMASS TI is a high-performance Coriolis mass flow meter designed for direct mass, density, and temperature measurement. It is widely used in demanding industrial and marine applications where accuracy, reliability, and robustness are critical. The series features Yokogawa's patented box-in-box construction, advanced diagnostics, and DNV-GL approval.
How does a Coriolis mass flow meter measure flow?
A Coriolis meter measures mass flow based on the Coriolis effect. The sensor tubes are oscillated, and when fluid passes through them, a measurable phase shift occurs. This shift is directly proportional to the mass flow. The meter also determines density by measuring the energy required to maintain oscillation, providing both mass and volumetric flow without external compensation.
What are the main advantages of the ROTAMASS TI series?
Key advantages include direct mass measurement, high accuracy across the entire flow range, vibration resistance due to the box-in-box system, no need for straight pipe runs, maintenance-free operation, and comprehensive self-diagnostics. The instrument is designed for long-term stability in harsh environments such as marine engine rooms.
Why is the box-in-box design important?
The patented box-in-box construction isolates the sensor tubes from external stresses, pipeline misalignment, and vibration. This design reduces measurement drift, minimizes the need for zero-point adjustments, and ensures stable, accurate performance even in harsh marine and industrial environments.
Is the ROTAMASS TI suitable for marine applications?
Yes. The ROTAMASS TI is DNV-GL approved and extensively used in marine fuel consumption monitoring, bunker operations, transfer systems, and performance optimization solutions. Thousands of onboard installations validate its robustness and accuracy under shipboard conditions.
What types of media can the ROTAMASS measure?
The Coriolis principle allows measurement of almost any liquid or gas. The ROTAMASS TI handles heavy fuel oils, MGO, MDO, LNG, solvents, process fluids, and lube oils. It operates effectively across broad temperature ranges and in applications requiring density or concentration measurement.
Do I need straight pipe runs before and after the ROTAMASS?
No. The ROTAMASS TI does not require straight inlet or outlet piping, making it ideal for retrofits and confined installations. The only installation requirements are correct orientation (horizontal or upward flow) and ensuring air-free media.
How reliable is the ROTAMASS TI in environments with vibration?
Extremely reliable. The box-in-box design and optional separate converter dramatically reduce the influence of vibration from engines, pumps, and piping. This makes the ROTAMASS TI one of the most dependable measurement solutions for ship engine rooms and other high-vibration settings.
What maintenance is required?
The ROTAMASS TI has no moving parts, no filters, and no internal components subject to wear. Routine maintenance is negligible, and operational costs are significantly lower than volumetric meters that require filtration or frequent servicing.
What diagnostic features are available?
Advanced diagnostics include self-monitoring of the sensor, tube integrity verification, total health check, event management, and comprehensive error signaling. These features help ensure measurement reliability and reduce the risk of undetected faults.
What is the difference between the Essential and Ultimate transmitters?
The Essential transmitter is designed for general applications, offering multilingual wizards, event management, data mobility via microSD, and broad I/O compatibility. The Ultimate transmitter adds advanced features such as Tube Integrity verification, Total Health Check, Dynamic Pressure Compensation, inline concentration measurement, batching, viscosity functions, and API-compliant net oil computing.
How accurate is the ROTAMASS TI for marine fuel consumption measurement?
The direct mass measurement eliminates temperature and density compensation errors, providing highly accurate, stable fuel flow data. This is essential for engine optimization, performance systems, and cost-efficient vessel operation.
Can the ROTAMASS be installed in hazardous areas?
Yes. The ROTAMASS TI is available in versions certified for safe and hazardous areas, making it suitable for a wide range of marine and industrial environments.
How does the ROTAMASS help reduce operational costs?
Key cost-saving contributors include low maintenance, elimination of pre-filters, reduced risk of measurement errors, simplified installation, and long instrument lifespan. The accurate data supports fuel optimization and operational efficiency programs.
Can the ROTAMASS be used for density, concentration, or net oil computation?
Yes. The meter provides direct density measurement and supports inline concentration measurement. With the Ultimate transmitter, integrated net oil computation according to API standards is available.
What applications is the ROTAMASS TI best suited for?
Typical applications include fuel consumption measurement, bunker operations, fuel transfer, batching, product control, filling and dosing, gas void fraction detection, solvent measurement, mass balancing, and water cut measurement.
Does Insatech Marine support installation and commissioning?
Yes. Insatech Marine offers complete installation, commissioning, troubleshooting, and service support. The team ensures correct setup and long-term reliable performance of the ROTAMASS TI on board your vessel.
We Deliver Directly to End Customers, Resellers, and Agents – Globally
At Insatech, we are proud to offer our high-quality products to all customers worldwide. Whether you’re an end customer, a reseller, or an agent, you can purchase directly from us.
By choosing us, you gain direct access to all our products, eliminating the need for intermediaries. Our global distribution possibilities ensure fast and reliable delivery to your doorstep, wherever you are.
We strive to make it easy for you as an end consumer to find the products you are looking for while supporting agents and resellers looking to grow their business. Whether you’re buying for your use or resale, we’re here to meet your needs.
Discover how simple it is to work directly with a trusted global distributor – shop with confidence at Insatech today!
100 bar or 250 bar on demand / 1450 psi or 3626 psi on demand
Line sizes
DN15, DN25, DN40, DN50, DN65, DN80, DN100, DN125
⅜", ½", ¾", 1", 1½", 2", 2½", 3", 4", 5"
Yokogawa FlowConfigurator
With Yokogawa's FlowConfigurator you can find and select the flow meter that best meets your specific needs and requirements. The FlowConfigurator allows you to generate your datasheet and save your sizing projects for later use.
The tool is free, but requires you to create an account.