Critical Technical Advantages
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Large Pipe and Duct Versatility: The insertion design is suitable for a massive range of dimensions, from DN 80 to 1500 (3 to 60 inches). It is equally effective in circular piping and rectangular ventilation ducts, providing a flexible solution for facility-wide gas monitoring.
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Direct Mass Flow Measurement: By measuring the heat loss from the sensor to the gas stream, the t-mass I 300 determines mass flow directly. This simplifies the measurement chain by eliminating the requirement for external flow computers and multivariable transmitters.
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Intelligent Gas Engine: The device features an integrated library of 21 standard gases and allows for the definition of custom gas mixtures. It compensates in real time for variations in gas type, pressure, and temperature, ensuring premium accuracy across diverse applications.
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Patented Drift-Free Sensor: The SIL 2-certified sensor is engineered for maximum stability. Its robust design minimizes long-term drift, which is a common challenge in thermal measurement, ensuring repeatable data and reducing the need for frequent recalibration.
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Bidirectional Measurement: This device can reliably detect and measure flow in both directions. This capability is essential for detecting process disturbances and managing reverse flow in complex piping networks or aeration systems.
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Advanced System Integration: The compact transmitter features a dual-compartment housing that separates the electronics from the wiring. With up to 3 freely configurable I/Os, WLAN access, and compatibility with numerous fieldbuses, it offers seamless integration into modern digital plants.
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Heartbeat Technology: Integrated verification allows for a traceable health check of the flowmeter while it remains in the pipe. This ensures measurement reliability and simplified compliance with quality and safety regulations.
Technical Performance Matrix
| Feature | Details |
| Measuring Principle | Thermal Dispersion (Direct Mass Flow) |
| Pipe/Duct Size | DN 80 to 1500 (3 to 60 inches) |
| Flow Direction | Bidirectional measurement |
| Gas Library | 21 standard gases + custom mixtures |
| Safety Rating | SIL 2 compliant sensor |
| Communication | HART, Modbus RS485, PROFIBUS DP, PROFINET, Ethernet/IP |
Primary Applications
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Main Gas Headers: Monitoring total plant consumption of natural gas or nitrogen in large-diameter pipelines.
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Aeration Air Control: Precise mass flow measurement for oxygen/air delivery in large wastewater treatment basins.
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Exhaust and Flue Gas: Measuring gas flow in large rectangular ducts for environmental monitoring or heat recovery.
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Compressed Air Auditing: Identifying leaks and balancing energy usage across large-scale industrial distribution networks.




