It is more convenient to understand the use of gas mass flowmeters. As staff, we should learn more about gas mass flowmeters, so that we will be more comfortable when using products and reduce unnecessary losses and problems. The thermal gas mass flowmeter adopts the principle of thermal diffusion, and thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions. Its typical sensing elements include two thermal resistances (platinum RTDs), one is a speed sensor and the other is a temperature sensor that automatically compensates for changes in gas temperature. When two RTDs are placed in a medium, where the speed sensor is heated to a constant temperature above ambient temperature, the other temperature sensor is used to sense the medium temperature. The gas mass flow through the velocity sensor is calculated from the amount of heat transfer through the sensing element. As the gas flow rate increases, the heat taken away by the medium increases. The temperature of the sensor is lowered accordingly. In order to keep the temperature constant, it is necessary to increase the operating current through the sensor, and the increased part of the current is proportional to the flow rate of the medium. , Gas mass flowmeter installation knowledge Installation does not require special fixing brackets, and the container-type structure of the instrument can overcome the influence of external forces. The high vibration frequency of the measuring tube ensures that the measuring system is not affected by the vibration of the tube. As long as cavitation does not occur, the measurement will not be affected by valves, bends, tees and other pipe fittings, but the flowmeter is recommended to stay away from large sources of interference, such as pumps and other large equipment. When there is air or entrained gas in the measuring tube, measurement errors will occur, and the following installation positions should be avoided: a. The flowmeter is installed at the high point of the pipeline; b. The flowmeter is directly installed upstream of the downward vent pipe; the gas mass flowmeter is installed Direction: vertical installation, the better installation method is vertical installation and the fluid flows through the instrument from bottom to top, so that the entrained solid particles can sink, the gas rises through the measuring tube, and the fluid in the measuring tube can be completely emptied, so that It is not affected by solid fouling. For horizontal installation, the two measuring tubes of the mass flowmeter must be horizontal. The correct installation should make the transmitter housing vertically upward or downward, and avoid the transmitter housing and the pipe being on the same level. a Not suitable for fluids containing solid particles, in order to avoid the accumulation of solid particles. b Not suitable for fluids containing air bubbles to avoid accumulation of air bubbles. The medium temperature and installation direction are to ensure that the ambient temperature where the transmitter is installed is within the range of -20 ~ +60°C. Gas mass flowmeter cleaning method As a precision instrument, the gas mass flowmeter cannot be flushed against running water. The correct way is to wipe off the surface stains with a soft cotton cloth. During the wiping process, be careful not to use too much force. In order to prevent the instrument from breaking, the second is its surface maintenance. Sometimes we need to disinfect it, but the chemical properties of general disinfection reagents are too strong to be used, so alcohol is usually used for disinfection, and alcohol can also remove surface stains to a certain extent. dust.
However, mass flow meter isn't the only producer in domestic, and many people feel that Beijing Sincerity Automatic Equipment Co., Ltd's service leaves much to be desired in terms of functionality and design.
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Beijing Sincerity Automatic Equipment Co., Ltd has developed a unique technology with many applications including fork density meter manufacturer.
[拓展名称] include a great variety of devices with a wide range of complexity: from simple endress hauser ultrasonic flow meter used since prehistoric times to the complex of modern mechanized endress hauser coriolis mass flow meter.
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