Factors Affecting Mass Flow Meter Measurement and Solutions

Abstract: The factors and solutions that affect the measurement of mass flow meters are provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. The mass flowmeter directly measures the mass flow of the medium passing through the flowmeter, and can also measure the density of the medium and indirectly measure the temperature of the medium. To accurately measure data, there must be no influencing factors, but some factors cannot be avoided when using a flowmeter. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the factors affecting the measurement of mass flow meters and the details of the solutions. The mass flowmeter directly measures the mass flow of the medium passing through the flowmeter, and can also measure the density of the medium and indirectly measure the temperature of the medium. To accurately measure the data, there must be no influencing factors, but the influence of some factors cannot be avoided when using the flowmeter. In short, some factors affect the measurement and solution of the mass flowmeter. 1. The influence of vibration on the accuracy of the mass flowmeter. Treatment method: Avoid vibration interference. If it is unavoidable, isolation measures should be taken to isolate the flowmeter from the vibration interference source. 2. The influence of electromagnetic interference on the accuracy of mass flowmeter. Treatment method: The mass flow meter should be installed away from equipment that generates large magnetic fields such as large transformers and motors. 3. The influence of installation stress on the accuracy of mass flowmeter. Treatment method: a. The installation specification should be strictly followed when the flowmeter is installed. b. After the flowmeter is installed, call it out with the hand-held communicator or on the transmitter interface.“Zero menu”And record the factory zero preset value, and then observe the zero value after zero adjustment. The two values ​​before and after should be guaranteed to be in the same order of magnitude. If the difference between the two values ​​is large, it means that the installation stress is too large and should be reinstalled. 4. The influence of the gas contained in the oil on the accuracy of the mass flowmeter. Treatment methods: a. Improve the working conditions of the oil, so that the bubbles contained in it are distributed as evenly as possible to meet the requirements of the normal measurement of the flowmeter; b. Install an air eliminator upstream of the mass flowmeter to minimize the phenomenon of gas-liquid mixing; c. Install in strict accordance with the installation specifications of the mass flowmeter: measure the oil medium flow tube and install it downwards 5. The influence of temperature changes on the accuracy of the mass flowmeter. Treatment method: a. The influence of temperature on the metal elasticity of the flowmeter measuring tube can be solved by setting the temperature correction coefficient; b. The influence of temperature on the zero point stability, in practical applications, it is necessary to adjust the mass flowmeter under the operating temperature condition. Perform field zeroing to minimize impact. 6. The influence of pressure change on the accuracy of mass flowmeter. Treatment method: For oil products with large changes in transmission pressure and custody transfer, it is necessary to install a pressure transmitter downstream of the flowmeter to perform pressure compensation in real time in the form of software. 7. The influence of oil density and viscosity on the accuracy of mass flowmeter. Treatment method: The flowmeter should be used to measure a single oil product or oil with little difference in density. The mass flowmeter used for the transfer of bulk oil products must be calibrated on-line and equipped with an on-line density meter. 8. The influence of damage or corrosion of the measuring tube on the accuracy of the mass flowmeter. Treatment method: a. Install a corresponding filter at the front end of the flow meter to prevent foreign matter from entering; b. Use a flow meter of special material. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Factors and Solutions Affecting Mass Flow Meter Measurement'

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