Endress+Hauser’s Proline t-mass 150 thermal mass flowmeter is for measuring gases such as compressed air, nitrogen, carbon dioxide, and argon. The flowmeter measures mass flow, gas temperature, free air delivery, and corrected volume—all without the need for pressure or temperature compensation. With its high turndown of 100-to-1, the flowmeter can reliably measure small gas quantities at very low-operating pressures, making it suitable for applications such as leak detection, process control, cost allocation, analysis of flow profiles, and energy management. It has a 4-20 mA output with HART and a pulse/frequency switch output, allowing easy connection to control and energy management systems. The flowmeter operates in temperatures from -40 to 212 F (-40 to 100 C) and pressures up to 580 PSI (40 bar), and measures mass flow up to 2.4 million lb/hr with negligible pressure loss. The stainless steel flowmeter has CSAus and ex approvals for use in Class 1, Division 2 areas.