Reasons for Decreased Measurement Accuracy of High Temperature Liquid Flow Meters

Abstract: The information on the reasons for the decline of the measurement accuracy of the high temperature liquid flow meter is provided by the excellent flow meter and flow meter manufacturers. In the process of using the high temperature liquid flowmeter, it will be found that the accuracy will sometimes decrease. The reasons are summarized as follows: 1. The change of fluid temperature and pressure may cause the liquid in the pipeline to escape the air contained in the pipeline or due to the low pressure in the pipeline. Saturated steaming of fluids. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of the reasons for the decline of the measurement accuracy of high temperature liquid flowmeters. In the process of using the high temperature liquid flowmeter, it will be found that the accuracy will sometimes decrease. The reasons are summarized as follows: 1. The change of fluid temperature and pressure may cause the liquid in the pipeline to escape the air contained in the pipeline or due to the low pressure in the pipeline. Due to the saturated vapor pressure of the fluid, part of the liquid is turned into vapor, and the external gas may also be sucked into the pipeline due to the negative pressure of the medium. These gases flow with the measured liquid, causing the indicator value to increase and a positive error to occur. Not good for the demand side of the fluid. 2. The harsh working environment will also have a great impact on the measurement results of the high-temperature liquid flowmeter, such as electromagnetic field interference, dust, high temperature, vibration, humidity, etc., which may cause the malfunction or failure of the turbine flow sensor, which will directly cause the flowmeter to malfunction. Indication error, the error may be positive or negative, it may not be obvious, or it may be completely invalid. For the above phenomenon, when it is more serious, problems can be found from the comparison of the working status of the process, and it is easy to take corresponding measures. However, in the early stages of the problem, the problem cannot be detected without taking special measures. 3. There are generally some impurities in the medium, which will cause wear and tear on the bearings and shafts, which will increase the gap between the two, the dynamic balance of the moving parts will be destroyed, the speed will drop, or the dirt will enter the gap, which will increase the movement resistance. , the speed drops. All of these reasons cause the display value of the instrument to decrease and negative errors to appear, which is unfavorable to the fluid supplier. 4. The fibrous or viscous impurities in the fluid are attached to the rotating part of the liquid flow meter, which increases the rotating resistance, reduces the indication value of the meter, and causes negative errors, which is unfavorable to the fluid supplier. Therefore, the instrument needs regular maintenance to ensure the normal and long-term use of the flowmeter. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Causes of Decreased Measurement Accuracy of High Temperature Liquid Flow Meters'

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