What is the difference between a mass flow meter and a volume flow meter?

What is the difference between a mass flow meter and a volume flow meter? Mass flowmeters are expensive and more accurate in measurement, while volume flowmeters are much cheaper, but they can be switched between the two. If funds are limited, you can consider choosing volume flow, which can be converted to mass flow on the software. Volume flowmeters are direct measurement types, such as vortex flowmeters, target flowmeters, turbine flowmeters, oval gear flowmeters, etc., which generally measure the volume flow of media. There are two types of flowmeters that can measure mass flow, namely thermal Type gas mass flowmeter and Coriolis mass flowmeter, the former of these two mass flowmeters is only used to measure gas, and the latter can measure both gas and liquid. Volume flow refers to the volume flow of fluid flowing through the cross-section per unit time. The unit is commonly expressed in m3/h and Nm3/h. Mass flowmeter refers to the volume flow through the flow section in unit time. The common unit is kg/h, t/ h to represent. The gas measured by the mass flowmeter is not affected by temperature and pressure. The mass flowmeter detects the density value in real time, so it has nothing to do with the temperature and pressure of the material. It is precisely because quality has nothing to do with temperature and pressure. According to the principle of material conservation, the general process prefers to use mass flow to judge. Therefore, if the measuring points to be assessed need temperature and pressure compensation, liquid can be used appropriately. Therefore, the use of mass flow meters is better for instrumentation professionals, but the price must be much higher, and the requirements for installation are also relatively high. Mass flowmeters are mostly used for accurate measurement of reactor feed and other places. Often, mass flowmeters for materials with relatively large flow rates are not affected by temperature, while volume flowmeters are easily affected. If it is used for high measurement accuracy, it is recommended to choose a mass flowmeter. For process control, a volume flowmeter can meet the demand in terms of saving money. The mass flowmeter can directly measure the mass flow, density dynamic detection does not need compensation, and can also directly measure the volume flow, while the volume flowmeter can only directly measure the volume flow, if you want to measure the mass flow, if you give a fixed value during configuration Density value, so that the density cannot be detected dynamically, and the accuracy is poor. The mass flow meter is expensive, and the measurement is more accurate. The volume flow meter is cheap, but it can be converted between the two. If the unit has no money, try to choose volume flow, and convert it to mass flow on the software.

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