What is a thermal mass flow meter?
The rotameter emerson product is able to guarantee constant productivity. It can be frequently upgraded, which can offer the desired functionality during operation.
Gas flow is almost exclusively measured with thermal mass flow meters. Using one or more temperature sensors, the meters measure the amount of heat dissipated by introducing heat into a flowing stream. This method works best when measuring the mass flow of gas.
In general, a thermal mass flow sensor/controller can be used for other fluids. However, it is important that the suitability of the sealing material used for the new gas or liquid is ensured beforehand.
The thermal meter is almost exclusively used for gas flow applications. This method works best when measuring gas mass flow, as it introduces heat into a flowing stream and measures how much heat is dissipated by using one or more temperature sensors.
Thermal mass flow meter emerson SPECIFICATIONS
Working Principle of Thermal Mass Flow Meter
Thermal mass flow sensors use the thermal dispersion principle which allows for the rate of heat absorbed by a gas to be directly proportional to its mass flow. In a typical thermal flow meter, flowing gas absorbs heat and cools the source. As flow increases, more heat is transferred to the gas, leading to an amount of heat dissipated from the source that is proportional to both the gas's mass flow and its thermal properties. Through measuring this heat transfer, it is possible to work out a mass flow rate. These meters are designed to accurately measure mass flow rather than volumetric flow, in clean gases that are not affected by temperature changes, pressure levels, viscosity or density. Therefore, corrections do not need to be made for these conditions.
Advantages of Thermal Mass Flow Meter
Directly measure the mass flow rate of gas
Thermal flow sensor accuracy of 1% FS are highly accurate and repeatable
Measures low gas flow rates or low gas velocity accurately
Suitable for applications with fluctuating temperatures and pressures
No moving parts
Want to know more about mass flow meter, contact us, Sincerity Group, thermal mass flow meter manufacturer & supplier in China with more than 35 years of experiences.
Thermal mass flow meter applications
Some common gas-flow applications for thermal mass flow meters include combustion air measurement in large boilers, semiconductor process gas measurement, air sampling in nuclear power plants, process gas measurements in the chemical and petrochemical industries, research and development applications.
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