Endress+Hauser Proline t-mass thermal mass flowmeters

Endress+Hauser has launched the Proline t-mass F/I 300/500 thermal mass flowmeters, designed for measuring pure gases and gas mixtures, each with numerous alarm functions, as well as bidirectional measurement capability and reverse flow detection.

When process and ambient conditions significantly fluctuate, t-mass is said to provide high measurement accuracy (±1.0%) and repeatability (±0.25%). Gas flows with low pressure and a low flow velocity can also be measured due to a high turndown ratio. The t-mass F and I models can operate at process temperatures up to 180°C and pressures up to 580 psi.

The t-mass 300/500 measuring system is equipped as standard with ‘Gas Engine’ software to enable, among other things, calculation of the mass flow of a gas under current process conditions. The Gas Engine also calculates flow velocity, reference density, corrected volume, and energy flow for current operating conditions, and measurement of pure gases and gas mixtures by selecting from up to 22 standard gases, as well as gas mixtures created by combining up to 8 of these 22 gases (special gases on request).

The t-mass 300/500 measuring system has been developed in accordance with IEC 61508, SIL 2 and can serve safety-related applications. Any device or process errors that may occur are indicated to NAMUR NE107 standards. It is also equipped with alarm functions used for detecting unwanted condensate drops on the sensor or pulsating flow, and it can measure and account for gas flows in both flow directions and detect reverse gas flows.