Nanchang flowmeter| arduino flow meter

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How is the accuracy level of a flowmeter classified?

1、 The accuracy of the first level standard instrument is: 0.00

5, 0.0

2, 0.05.

2、 The accuracy of secondary standard instruments is: 0.

1. 0.

2. 0.3

5. 0.5.

3、 The accuracy of general industrial instruments is:

5. 2.

5. 4.0.

4、 The precision level of instruments used in scientific experiments is above 0.05.

5、 Electrical instruments are divided into seven levels: 0.1, 0.2, 0.5, 1.0, 1.5, 2.5, and 5.0. The accuracy level of a flowmeter is the maximum allowable error expressed as a percentage of the instrument, minus the percentage sign. The higher the accuracy, the lower the level, and the smaller the error. Calculation method: Relative percentage error=(measured value of northern parameter - standard value of northern parameter)/(upper limit value of ruler - lower limit value of ruler) * 100%. Extended data flow measurement is widely used in various fields such as industrial and agricultural production, national defense construction, scientific research, foreign trade, and peoples daily lives. In the production of the petroleum industry, flow measurement runs through the entire process from oil extraction, transportation, refining and processing to trade and sales. Any link cannot be separated from flow measurement, otherwise the normal production and trade exchanges of the petroleum industry cannot be guaranteed. In the chemical industry, inaccurate flow measurement can cause an imbalance in the distribution ratio of chemical components, which cannot guarantee product quality and can even lead to production safety accidents. In the production of the power industry, th

e measurement and regulation of the flow rate of liquids, gases, steam and other media play an important role. The accuracy of flow measurement not only has great economic significance for ensuring the operation of power plants under optimal parameters, but also has become an important link in ensuring the safe operation of power plants with the development of high temperature, high pressure, and large capacity units. If the instantaneous feedwater flow of a large capacity boiler is interrupted or reduced, it may cause serious dry boiler or pipe burst accidents. This requires flow measurement devices to not only accurately measure, but also to promptly issue alarm signals. In the production of steel industry, measuring the flow rate of circulating water and oxygen (or air) during the refining process is one of the important parameters to ensure product quality. In industries such as light industry, food, and textiles, flow measurement is also indispensable. The commonly used transducers are external clip on and plug-in. The structure of monaural ultrasonic flowmeter is simple and easy to use, but this flowmeter has poor adaptability to changes in flow distribution. The rapid development of microelectronics and computer technology has greatly promoted the upgrading of instruments, and new types of flowmeters have emerged like mushrooms after rain. Reference source: Baidu Baike - Flow Meter

2. How to adjust flow meter parameters

Flow meter parameter adjustment operation process: Equipment: Flow Meter

1. In the initial interface, you can right-click to enter the system settings menu, enter the password, and press the left button to confirm and enter the settings system.

2、 After entering the syste

Nanchang flowmeter

How is the accuracy level of a flowmeter classified?

2. How to adjust flow meter parameters

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