Critical Technical Advantages
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Remote Installation for Demanding Environments: The 500-series transmitter is separated from the sensor, allowing it to be installed in a safe, easy-to-access location while the sensor operates in high-vibration, high-temperature, or hazardous areas. A standard cable connects the two, ensuring reliable data transmission over long distances.
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Massive Scalability: Designed for circular piping or rectangular ventilation ducts from DN 80 to 1500 (3 to 60 inches). This makes it a cost-effective alternative to inline meters for main plant headers and large-scale flue gas monitoring.
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High-End I/O Flexibility: The remote transmitter supports up to 4 freely configurable inputs and outputs. This allows for complex integration, enabling the device to communicate mass flow, temperature, and diagnostic status simultaneously via a wide array of fieldbus protocols.
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Intelligent Gas Engine: Programmed with a library of 21 standard gases and capable of handling freely definable gas mixtures, the device automatically compensates for changes in gas type and process pressure/temperature, ensuring premium repeatability.
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Bidirectional Flow Monitoring: Unlike standard thermal meters, the t-mass I 500 can detect and measure flow in both directions. This is critical for identifying process disturbances or managing complex utility balancing where reverse flow might occur.
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Heartbeat Technology: Provides integrated, traceable verification of the flowmeter’s performance without process interruption. This self-diagnostic capability ensures measurement reliability and simplified compliance with safety and quality audits.
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Patented SIL 2 Sensor: The drift-free sensor is designed for extreme long-term stability and is certified for use in safety-related systems (SIL 2), making it suitable for hazardous process gas applications.
Technical Performance Matrix
| Feature | Details |
| Measuring Principle | Thermal Dispersion (Direct Mass Flow) |
| Installation Style | Insertion (DN 80 to 1500 / 3 to 60″) |
| Transmitter Style | Remote (Up to 4 I/Os, WLAN, Touch Control) |
| Gas Library | 21 standard gases + custom mixtures |
| Flow Direction | Bidirectional measurement and detection |
| Communications | HART, Modbus RS485, PROFIBUS DP, PROFINET, Ethernet/IP |
Primary Applications
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Large-Scale Utilities: Monitoring natural gas, nitrogen, and compressed air in main facility distribution headers.
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Wastewater Aeration: Controlling the direct mass flow of oxygen/air in large-diameter aeration piping for biological treatment.
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Industrial HVAC & Exhaust: Precise flow measurement in large rectangular ducts for environmental monitoring and energy efficiency.
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Flare and Flue Gas: Measuring gas streams in large-diameter stacks where remote access to electronics is required for safety.
