E+H Proline t-mass I 500 Insertion Thermal Mass Flowmeter

Direct Gas Mass Measurement for Large Pipes and Ducts

Accurate gas volume tracking and compressed air monitoring in large-diameter pipelines and industrial ventilation ducts are crucial for energy optimization and plant safety. The Endress+Hauser Proline t-mass I 500 Insertion Thermal Mass Flowmeter provides an economical, high-precision measurement solution specifically engineered for large pipe sizes where inline flowmeters become cost-prohibitive. Utilizing thermal dispersion technology, the t-mass I 500 measures gas mass flow directly without requiring separate pressure or temperature compensation transmitters.

Remote Transmitter Architecture for Severe Field Conditions

A primary design advantage of the Proline t-mass I 500 is its split transmitter architecture. The transmitter electronics can be mounted up to 300 meters (1,000 feet) away from the insertion sensor probe. This remote setup isolates sensitive transmitter electronics from pipe vibration, high process temperatures, or hazardous classified zones, ensuring easy operator display access and safe field operation.

The transmitter enclosure is available in corrosion-resistant aluminum or hygienic stainless steel with IP66/67 (NEMA 4X) protection, offering outstanding durability in harsh outdoor and industrial atmospheres.

Dynamic Gas Engine Software for Changing Gas Compositions

The E+H t-mass I 500 features integrated Gas Engine software that allows field selection from a wide variety of standard pure gases or dynamic custom gas mixtures.

When gas compositions vary—such as shifting natural gas compositions, fluctuating biogas streams, or variable nitrogen blanketing flows—the device automatically recalculates thermal compensation algorithms in real time. This dynamic flexibility guarantees continuous, uncompromised measurement accuracy without requiring line shutdowns or factory recalibration.

Hot-Tap Installation & Zero Head Loss

Unlike traditional differential pressure orifice plates or mechanical meters that cause head loss and require line shutdowns during installation, the t-mass I 500 insertion probe can be installed using hot-tap retractor assemblies under line pressure. The thin insertion probe introduces virtually zero pressure drop into the pipeline, significantly lowering fan and compressor operating costs.

Integrated Heartbeat Technology provides continuous internal diagnostic self-checks, monitoring, and traceable field verification without interrupting process flow. Audit-ready diagnostic reports can be generated directly on-site to satisfy quality and environmental audits.

Digital communication options include 4 to 20 mA HART, Modbus RS485, PROFINET, EtherNet/IP, PROFIBUS PA, and Foundation Fieldbus for seamless PLC, SCADA, or DCS network integration.

Applications

• Compressed Air Monitoring: Mass flow measurement and leak detection in large main header pipes in manufacturing plants.

• Flue Gas & Stack Monitoring: Flow monitoring of combustion air, exhaust gas, and flue gas in industrial boilers and power plants.

• Natural Gas & Fuel Lines: Precision mass measurement of natural gas, propane, and fuel gas in large supply headers.

• Inert Gas Lines: Accurate flow tracking of nitrogen (N2), carbon dioxide (CO2), argon (Ar), and oxygen (O2) in chemical reactors and storage tanks.

• Biogas & Flare Gas Systems: Mass flow measurement in large-diameter biogas digester pipes and landfill gas collection headers.

 Technical Specifications

• Manufacturer / Brand: Endress+Hauser (E+H)

• Measurement Principle: Thermal mass flow measurement.

• Measured Variables: Direct mass flow, calculated volumetric flow, gas temperature.

• Measuring Media: Utility gases, compressed air, natural gas, inert gases, biogas, custom gas mixtures.

• Nominal Pipe Sizes: DN 80 to 1500 (3” to 60”) and rectangular ducts.

• Measurement Accuracy: Gas: ±1.5% of reading (for 10% to 100% of full scale value).

• Turndown Ratio: Up to 1:100.

• Transmitter Configuration: Remote transmitter (up to 300 m / 1,000 ft cable distance from sensor).

• Sensor Probe Materials: Stainless steel 1.4404 (316/316L), Alloy C22.

• Process Temperature Range: -40 °C to +180 °C (-40 °F to +356 °F).

• Operating Pressure Range: Up to 20 bar(g) (290 psi(g)).

• Digital Communication: HART, Modbus RS485, PROFINET, EtherNet/IP, PROFIBUS PA, Foundation Fieldbus.

• Diagnostic Function: Integrated Heartbeat Technology for continuous self-monitoring and verification.

• Protection Class: IP66/67 (NEMA 4X / Type 4X enclosure).

FAQ

Q1: Is the Endress+Hauser t-mass I 500 supplied as an authentic original unit? A: Yes. We supply 100% genuine, brand-new Endress+Hauser instruments complete with original factory serial numbers, calibration reports, and official documentation.

Q2: What is the main advantage of the insertion t-mass I 500 compared to inline flowmeters? A: The insertion sensor design allows cost-effective flow measurement in large pipes (up to DN 1500 / 60”) and ducts where inline flowmeters would be cost-prohibitive or physically too large to install.

Q3: Can the t-mass I 500 be installed without shutting down the pipeline? A: Yes, when specified with an optional hot-tap retractor assembly and ball valve mounting, the insertion sensor probe can be installed or removed under process operating pressure without interrupting pipeline flow.

Q4: How can I request distributor quotes and confirm lead times? A: Simply submit your required E+H model ordering code, pipe diameter, process gas composition, and operating pressure through our inquiry form. Our sales team will provide a prompt, competitive quotation and export delivery timeline.

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