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FLOWSIC600-XT Gas Flow Meter
CSA 
Measurement Canada 
CRNs Available 
Hydrogen Compatible Description
Custody transfer natural gas measurement with intelligent diagnostic functions
As the follow-up to the successful FLOWSIC600, the FLOWSIC600-XT ultrasonic gas flow measuring device is setting new standards in its market segment.
The FLOWSIC600-XT is available in variants with 4, 4+1, 4+4, and 8 measurement paths to meet the requirements of every application, whether it is being used as a stand-alone or system solution. In addition to the OIML R 137 Class 1.0 requirements, the FLOWSIC600-XT meets the requirements of Class 0.5 and AGA9 in their entirety.
The FLOWSIC600-XT contains i-diagnostics™ – an intelligent application diagnostics function – and PowerIn Technology™, which enables continuous measurement operation for up to three weeks in the event of a mains voltage failure. These functions help ensure usability and unparalleled operational safety – and what''s more, the equipment offers the very best possible measurement accuracy and long-term stability.
Features
- Low measurement uncertainty in every application
- Excellent measurement data reliability and availability
- The right ultrasonic gas flow measuring device for every application – without compromise
- Simple device integration – even in compact systems
- Quick and easy commissioning and checks
At a glance
- User-friendly product family
- Automatic correction of pressure and temperature influences
- Available for all operating conditions
- PowerIn Technology™ for reliable backup operation
- Intelligent application diagnostics with i-diagnostics™
- Can be extended to include flow computers using connect-and-go technology
- Measuring capability up to 30% H2 in the natural gas
- Gas Quality Indicator for quantifying the H2 content
Specifications
Specifications
Brand
Certifications & Approvals
CSA Measurement Canada CRNs Available Hydrogen Compatibility %
Hydrogen Compatible up to 30% 
Hydrogen Compatible up to 20% Certifications & Approvals
- cCSAus
Enclosure Rating
- IP67
- IP66
Measured Value
- Uncorrected volume
- Corrected volume
- Sound velocity
- Gas velocity
- Electronic volume corrector (EVC)
Hazardous Area
- Class I, Div. 1
- Class I, Div. 2
Gas Temperature
- On Request: -194° to 280° C
- -40° to 180° C
Operating Pressure
- On Request: 0 to 450 bar(g)
- 0 to 160 bar(g)
Nominal Pipe Size
- 3" to 48"
Communication
- Ethernet
- ASCII RS-485 (3x)
- RTU RS-485 (3x)
- TCP
- HART
- RS-485
Why Choose Endress+Hauser FLOWSIC600-XT
Why Choose Endress+Hauser FLOWSIC600-XT
Value Elements
- Extreme Precision
- The FLOWSIC600-XT is certified to OIML R137 Class 0.5, ensuring extreme precision even in challenging or turbulent flow environments.
- Integrated pressure and temperature sensors correct volume calculations in real-time, accounting for expansion and contraction of the meter body.
- Its high-accuracy ultrasonic measurement makes it a strong fit for custody transfer and high-value natural gas measurement applications where small measurement errors can impact revenue.
- The Ultrasonic Advantage
- No moving parts eliminate mechanical wear, reducing downtime and maintenance costs.
- Maintenance-free design simplifies long-term operation.
- Low pressure loss helps support efficient gas movement through transmission pipelines, gate stations, and large industrial natural gas systems.
- Because there are no mechanical parts in the gas stream, the FLOWSIC600-XT maintains stable measurement performance over time without the same wear concerns as turbine or rotary meters.
Comparison vs. Next Best Alternative (NBA)
- Vast Configuration Options Tailored to Your Application
- Multiple path configurations available: 4-path direct or 8-path chordal options for greater accuracy and redundancy.
- Can be specified with two meters integrated into a single body for added measurement reliability.
- Flexible path configurations allow the meter to be matched to the needs of custody transfer, check metering, transmission, storage, and high-demand industrial applications.
- Engineered to Perform
- Industry-leading transducers fully encapsulated in titanium ensure durability and long service life.
- Onboard backup battery ensures continuous data logging and operation during power interruptions.
- Advanced i-diagnostics system leverages machine learning to provide deep insights into meter health and performance, enabling predictive maintenance and optimized operation.
- PowerIn Technology™ supports reliable operation and data availability, helping protect critical measurement records during unexpected power disruptions.
- FLOWSIC600-XT vs. Traditional Meters
- Unlike turbine or rotary meters, ultrasonic meters have no wear parts, eliminating performance degradation and reducing the risk of revenue loss.
- Certified for use with natural gas blends containing up to 30% hydrogen by volume.
- Compared to traditional mechanical meters, the FLOWSIC600-XT provides stronger long-term measurement stability, lower maintenance requirements, and advanced diagnostic visibility.
Where Do I Use This Product and Why?
- Designed for the Most Demanding Applications
- Ideal for power generation facilities requiring highly reliable and accurate flow measurement.
- Well-suited for transmission pipelines and midstream gas operations.
- Designed for large industrial applications with demanding flow conditions.
- Perfect for gate stations feeding into distribution networks where precision and reliability are paramount.
- A strong fit for Canadian natural gas infrastructure where custody transfer accuracy, measurement confidence, and dependable operation are critical.
- Use the FLOWSIC600-XT in applications where operators need accurate billing measurement, reduced maintenance, and better insight into meter health over the life of the asset.
Gas Academy Blog
Gas Academy Blog
Which Gas Meter Is Right for Your Application?
Explore the different types of gas meters used across Canadian natural gas distribution systems in this CR Wall Gas Academy blog. Learn how diaphragm, rotary, turbine, ultrasonic, and Coriolis technologies compare, including their advantages, typical applications, and key considerations when selecting the right metering solution.
