6BAB

According to the principle of thermal diffusion measurement, when a medium flows past a heated thermal resistor (Pt100), it directly carries away part of the heat. By monitoring the cooling effect, the mass flow rate can be determined. The flow meter is equipped with two Pt100 thermal resistors installed in the measurement zone. One Pt100 thermal resistor measures the actual fluid temperature, while the other Pt100 thermal resistor is heated. The temperature sensor monitors and records the actual process temperature; the heated thermal resistor adjusts the sensor temperature by controlling the current through the heating component to maintain a constant temperature difference relative to the current process temperature. The greater the mass flow of the measured medium, the stronger the cooling effect, thus requiring a higher current to maintain a constant temperature difference. Therefore, by monitoring the current through the heating component, the mass flow of the medium can be measured.

Economical, plug-in type

The T-mass B 150 flow meter is suitable for measurements in large pipelines or rectangular ventilation ducts and is intended for economical measurement of commonly used gases, with particular application for compressed air. It represents the trend in submetering applications, featuring a robust, integrated aluminum housing and utilizing four-wire technology. Versions with and without displays are available. User-specific settings can be saved on the display or transferred from one device to another via the display. • This measurement principle offers a wide operational measurement range and allows direct measurement of mass flow. • Suitable for measuring air, nitrogen, carbon dioxide, and argon in circular pipes and rectangular ducts.