Mass Flow Meter
To measure the flow of the gas, the gas is sent through the tube that is inside of the mass flow meter. Mass Flow meters are devices that are used to measure the flow rate of a certain liquid or gas. They can measure these substances in terms of the volumetric flow rate or the mass flow rate. The mass flow rate is given in kg/second. Flow meters have many applications. For individuals, a peak flow meter can measure the lung capacity. For instance, mass flow meters measure the flow rate of a medium in terms of it's mass.
A more traditional type of flow meter is the variable area mass flow meter that uses a float in a calibrated tube. From the measurements of volume flow rate and temperature measurement it is possible to attain an indicated mass flow rate. Replacing orifice meters with the immersible thermal mass flow meter technology was key to the success of the plant improvements.
Here's what makes the immersible thermal mass flow meter technology an ideal choice:
Measures mass flow directly with one meter
In my experience it is mostly because the companies who sell thermal mass flow meters and thermal mass flow controllers love to sell the expensive units!