Reasons for Accuracy Decrease in Turbine Flow Meters

Abstract: The information on the reasons for the decline of accuracy in the use of turbine flowmeters is provided by excellent flowmeter and flowmeter manufacturers. Turbine flowmeters are relatively widely used, cost-effective, and easy to maintain and use. As long as the factory calibration is done to ensure that the conditions of on-site use conditions are met, the use effect is quite good. The following is summarized by the technology of Heshunda flowmeter. 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 accuracy in the use of turbine flowmeters. Turbine flowmeters are relatively widely used, cost-effective, and easy to maintain and use. As long as the factory calibration is done to ensure that the conditions of on-site use conditions are met, the use effect is quite good. The following is a summary of the calibration of the turbine flowmeter and the analysis of the reasons for the decline in accuracy during use by the flowmeter technology, for your reference and sharing. Turbine flowmeters are sensitive to on-site conditions of use, and users should try their best to meet its requirements in order to maintain factory accuracy. When the temperature and pressure of the fluid medium are quite different from the reference conditions, the volume change of the sensor housing can be calculated according to the material and temperature and pressure of the sensor, and the meter reading can be corrected. When the viscosity of the fluid medium in the working state is quite different from the viscosity of the calibration fluid, it should be corrected according to the viscosity correction curve provided by our company. Turbine flowmeters have certain requirements on the length of their upstream and downstream straight pipe sections, which should be met, especially when users require high precision. The meter displays the volume flow under the working conditions of the medium. To know the standard volume flow or mass flow, density compensation is also required. The technology of the flowmeter summarizes that the accuracy of the turbine flowmeter decreases during use, which may be due to the following reasons: 1. There are generally some impurities in the medium, which will cause wear on the bearings and shafts, which will increase the gap between the two. The dynamic balance of the moving parts is destroyed, the speed drops, or the dirt enters the gap, which increases the movement resistance and reduces the speed. 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. 2. Changes in fluid temperature and pressure may cause the liquid in the pipeline to escape the air contained in the pipeline, or because the pressure in the pipeline is lower than the saturated vapor pressure of the fluid, part of the liquid will become steam, or the negative pressure of the medium may cause the external air. The gas is sucked into the pipeline, and these gases flow with the liquid to be measured, causing the indication value of the instrument to increase, resulting in a positive error, which is unfavorable to the demand side of the fluid. 3. The fibrous or viscous impurities in the fluid are attached to the rotating part of the flowmeter, which increases the rotating resistance, reduces the indication value of the meter, and causes negative errors, which is unfavorable to the fluid supplier. 4. The working environment is relatively bad, for example, electromagnetic field interference, dust, high temperature, vibration, humidity, etc., may cause the malfunction or failure of the turbine flow sensor, which directly causes the indication error of the turbine flowmeter. The error may be positive or negative. value, which may not be obvious, or it may be completely ineffective. 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. As a professional R&D flowmeter manufacturer, the flowmeter manufacturer has been adhering to the production concept of creating a brand with quality and seeking development with a brand for several years. We provide products with reliable quality and meet the needs. At the same time, we have established long-term cooperative relations with many production enterprises. All colleagues look forward to sailing with you. 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 Accuracy Deterioration in Turbine Flow Meters'

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