Installation and Maintenance of Thermal Gas Mass Flow Meters

Abstract: The installation and maintenance information of thermal gas mass flow meter is provided by excellent flow meter and flow meter manufacturers. Thermal gas mass flow meters are instruments that measure fluid flow using the principle of heat conduction. The instrument uses the constant temperature difference method to accurately measure the gas flow. It has the advantages of small size, high degree of digitization, convenient installation and accurate measurement. Among them the sensor part. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the installation and maintenance of thermal gas mass flowmeters. Thermal gas mass flow meters are instruments that measure fluid flow using the principle of heat conduction. The instrument uses the constant temperature difference method to accurately measure the gas flow. It has the advantages of small size, high degree of digitization, convenient installation and accurate measurement. The sensor part consists of two reference-grade platinum resistance temperature sensors. With a bridge loop, one sensor measures the fluid temperature and the other sensor maintains a constant temperature differential above the fluid temperature, allowing flow measurement under high temperature and high pressure conditions. Installation and connection of thermal gas mass flowmeter 1. Integrated installation and connection requirements (1) If the converter is installed outdoors, an instrument box should be installed to avoid rain and sunlight. (2) It is forbidden to install it in the occasion of strong vibration, and it is forbidden to install it in the environment with a large amount of corrosive gas. (3) Do not share an AC power supply with equipment that pollutes the power supply such as frequency converters and electric welding machines. If necessary, install a purified power supply for the converter. ⑷ The integrated plug-in type should be inserted into the axis of the pipeline to be measured. Therefore, the length of the measuring rod depends on the diameter of the pipeline to be measured, which should be specified when ordering. If it cannot be inserted into the axis of the pipe, the manufacturer will provide the calibration factor to complete the accurate measurement. ⑸ The integrated pipe section type adopts flange connection, which conforms to the national standard GB/T9119-2000. 2. Installation of thermal gas mass flowmeter ⑴Integrated plug-in installation The factory provides pipe connections and valves. For non-weldable pipes, pipe clamps are provided by the factory. For example, pipes can be welded. Weld the connector and the pipeline first, then install the valve, drill holes with special tools, and finally install the instrument. When maintaining the instrument, remove the instrument and close the valve, which will not affect the normal production. (2) For the pipe segment installation, the corresponding standard flange should be selected for connection with it. (3) When installing, pay attention to the markings on the instrument.“Media flow direction marking"To be in the same direction as the actual flow of the gas. 3. When the thermal gas mass flowmeter is commissioned and operated, the potential on the instrument will enter the measurement state. At this time, the data must be input according to the actual working conditions. 4. Maintenance of thermal gas mass flowmeter (1) When opening the casing, be sure to cut off the power first. (2) When removing the sensor, pay attention to whether the pipeline pressure, temperature or gas is toxic. (3) The sensor is not sensitive to a small amount of dirt, but it should be cleaned regularly when used in a dirty environment. Otherwise, the measurement accuracy will be affected. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Installation and Maintenance of Thermal Gas Mass Flow Meters'

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