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Is the gas mass flowmeter easy to use, what are its advantages and precautions??
Gas mass flow meters (MFMs) or gas mass flow controllers (MFCs) are used for measuring/controlling gas mass flow rates. They have the characteristics of high accuracy, good repeatability, wide range, stability and reliability. They are widely used in semiconductor and integrated circuit industries, special materials industries, petrochemicals, pharmaceuticals, vacuum and other fields, such as coating equipment, fiber melting, microreactors, mixed gas distribution systems, gas sampling, capillary measurement, gas chromatography and other analytical instruments.. MFM/MFC has the characteristics of high accuracy, good repeatability, fast response speed, soft start, stability and reliability, wide working pressure range, and easy operation. It can be installed at any position and can be matched with the D088 series flow integrator to provide power to MFM/MFC for display or control; It can also be connected to computers and other devices to achieve automatic control. The gas mass flow meter measures the mass flow rate of gas. In the case of changes in gas pressure, the mass flow controller can accurately control the flow rate of gas because it measures the mass flow rate of gas, not the volumetric flow rate. Gas mass flow rate is usually expressed in terms of volumetric flow rate under standard conditions, with the unit of mass flow rate being SCCM - standard milliliters per minute SLM - standard liters per minute. The standard state of gas is 0 ℃, 101.325KPa, because in standard conditions, the density of gas is a constant, and the density multiplied by the volumetric flow rate is the mass flow rate. Therefore, the volumetric fl
3, BBr3, etc.), special instructions should be made when ordering to facilitate the replacement of sealing materials. Valve sealing issue: The solenoid valve of MFC is a regulating valve, not a globe valve, and cannot be used as a globe valve. Users should provide a separate globe valve. Especially when using corrosive gases, it is usually necessary to add a shut-off valve at each inlet and outlet of the MFC to ensure safety. After long-term work, if the leakage rate of MFC valve port is within 2% FS, it is considered normal. If the leakage exceeds 2% of the full range, it should be repaired. The problem with valve control operation is that after cleaning the valve, it cannot be directly turned to the "valve control" position for operation. It is necessary to first place the valve in the "closed" position and then turn it to the "valve control" position for operation. When installing gas quality flow meters/co
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