Critical Technical Advantages
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Unmatched Measurement Precision: Available in multiple path configurations (4, 4+1, 4+4, and 8 paths), the XT provides redundant and cross-checked data. This enables it to meet the elite Class 0.5 accuracy requirements, ensuring minimal uncertainty in high-value fiscal transactions.
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i-diagnostics™ Intelligent Monitoring: This internal diagnostic suite continuously monitors both the device health and the application conditions. It can detect changes in gas quality, profile disturbances, or transducer fouling, providing actionable insights through a simplified traffic light status indicator.
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PowerIn Technology™: In the event of a total mains power failure, the FLOWSIC600-XT continues to measure and log data for up to three weeks. This ensures that critical custody transfer data is never lost during site-wide outages or emergency shutdowns.
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Hydrogen-Ready Performance: As gas grids transition to cleaner fuels, the XT remains a viable asset. It is specifically designed to handle the acoustic and physical variations of natural gas containing up to 30% hydrogen, providing an economical way to quantify H2 content via speed-of-sound analysis.
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Dynamic Environmental Correction: The device automatically adjusts for the influences of pressure and temperature on the meter body. This real-time correction maintains the meter’s calibration geometry, ensuring long-term stability even in extreme onshore or offshore environments.
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Full Bore Flow Profile: The unobstructed design eliminates pressure drop, reducing overall system energy requirements and preventing the buildup of liquids or debris that often plagues turbine or orifice meters.
Detailed Technical Performance Matrix
| Specification | Technical Details and Ranges |
| Measured Medium | Natural gas, H2-blended natural gas (up to 30% H2) |
| Accuracy Class | OIML R 137 Class 0.5 & 1.0, AGA9 compliant |
| Path Configurations | 4, 4+1, 4+4, or 8 measurement paths |
| Diagnostics | i-diagnostics™ (Self-monitoring & application logic) |
| Backup Power | PowerIn Technology™ (Up to 3 weeks backup) |
| Design Pressure | Up to 450 bar (depending on flange and material) |
| Nominal Sizes | DN80 to DN1200 (3″ to 48″) |
| Turndown Ratio | Up to 1:120 |
| Communication | Modbus, Ethernet (HART/TCP), Pulse, Frequency |
Primary Applications
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Custody Transfer Stations: The primary choice for fiscal metering between gas producers and national grid operators.
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Hydrogen Blending Facilities: Monitoring and quantifying H2 injection into existing natural gas infrastructure.
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Offshore Production Platforms: Ruggedized measurement for high-pressure export lines in harsh marine environments.
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Gas Storage Facilities: Accurate tracking of bidirectional flow during injection and withdrawal cycles from salt caverns.
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City Gate Stations: Reliable distribution measurement where compact installation and long-term stability are required.
