Thermal Mass Flowmeter for Compressed Air with Pressure Measurement: Direct Mass Flow Without Compensation
The Thermal Mass Flowmeter has emerged as the preferred solution for compressed air monitoring in industrial facilities. Unlike volumetric devices that require separate pressure and temperature sensors to calculate mass flow, the thermal flowmeter measures mass flow directly—eliminating complexity while improving accuracy.
When integrated with an optional pressure sensor, the thermal flowmeter transforms from a flow-only device into a comprehensive diagnostic tool for compressed air system management.
Working Principle: Constant Temperature Anemometry
The thermal mass flowmeter operates on the principle of heat transfer. Two precision RTD sensors are inserted into the flow stream:
Reference Sensor: Measures the gas temperature
Heated Sensor: Maintained at a constant temperature above the gas temperature
