The post-management of the stable operation of the intelligent electromagnetic flow meter

Abstract: The management information in the later stage of stable operation of the intelligent electromagnetic flow meter is provided by the excellent manufacturers of flow meters and flow meters. After years of practical application, we have realized that in order to make the intelligent electromagnetic flowmeter operate safely and stably, better site conditions should be created, and correct installation and debugging should be carried out in strict accordance with its technical requirements, and centralized management can be implemented to ensure the intelligent electric flow. . For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following are the details of the post-management article for the stable operation of the intelligent electromagnetic flowmeter. After years of practical application, we have realized that in order to make the intelligent electromagnetic flowmeter operate safely and stably, better site conditions should be created, and the correct installation and debugging should be carried out in strict accordance with its technical requirements, and centralized management can be implemented to ensure the intelligent electromagnetic flowmeter. The flowmeter works normally to achieve continuous and accurate measurement. The following is the specific practice of Jinhu Zhongding Instrument Company in the application of intelligent electromagnetic flowmeter for discussion. 1. Selection of the installation position of the intelligent electromagnetic flowmeter Greater than 2D to ensure the axisymmetric distribution of the flow velocity and eliminate the measurement error caused by it. The installation location of the intelligent electromagnetic flowmeter should avoid strong vibration and strong interference sources, and the pipeline should be filled with water. Second, the correct installation of the intelligent electromagnetic flowmeter 1. The installation of the sensor The installation of the intelligent electromagnetic flowmeter is divided into the installation of the sensor and the installation of the converter, especially the installation of the sensor, which requires water interruption, pipe cutting, pumping, welding or punching, etc. The process makes the installation more difficult, and requires a long time to stop the water, resulting in certain economic losses. In response to this situation, when we installed the flowmeter on the cast iron pipe, we adopted a new process method, replacing the traditional short pipes A and B with two single-disc compensators, and canceled the punching process and the maintenance time for the nozzle. , especially when the valve is not closed too tightly, it can be operated with water. After the water is cut off, it only takes half a day to install a sensor to restore the water supply, which shortens the installation time, reduces the economic losses caused by the water cut, and receives certain social benefits. 2. Grounding the sensor shell separately is a necessary condition to ensure the normal and stable measurement of the flowmeter. It is generally believed that the sensor is installed on a metal pipeline, and the pipeline is buried underground and the pipeline is very long, which itself is a large grounding electrode, and the instrument does not need to be grounded. However, two problems have been ignored. One is that the pipelines are generally treated with anti-corrosion, and the other is that the connecting flange and the pipeline are separated by punching or rubber pads, which greatly increases the grounding resistance of the sensor. normal operation is affected. In our practical application, an intelligent electromagnetic flowmeter did not work properly after being put into use, and the flow rate display was sometimes absent, and even an empty pipe alarm prompt appeared. At that time, according to the fault phenomenon, the cause was found without results. Later, a grounding electrode was made for the sensor alone, and the fault phenomenon disappeared immediately, and it has been running normally so far. Therefore, after the intelligent electromagnetic flowmeter is installed, the grounding resistance should be measured. If the resistance is too large, it is better to make a grounding electrode to reduce the interference potential caused by stray current. 3. Usage After several years of actual operation and observation, we believe that the operation of the intelligent electromagnetic flowmeter in our company's production is better than that of other instruments used before. 1. The intelligent electromagnetic flowmeter has high precision, good linearity and stable operation, which improves the accuracy of measurement and the reliability of data, and overcomes the problem of unreliable measurement data caused by unstable operation of some instruments. After many on-site comparisons, the errors are all within the control range, which enhances the confidence in the instrument, and ends the unscientific measurement method of calculating the water volume according to the performance curve of the pump. Human Factors. 2. The intelligent electromagnetic flowmeter has a simple structure, the sensor has no moving parts, and there is no measurement error or instrument failure caused by mechanical movement wear or impurity entanglement, so the failure rate is very low, and the maintenance amount is greatly reduced, thus saving a lot of manpower and material resources. . 3. The intelligent electromagnetic flowmeter has a variety of interface circuits, which can be easily connected with the data acquisition terminal or computer to realize the automation of data acquisition, analysis and management. Management of intelligent electromagnetic flowmeter 1. Establish the operation file of intelligent electromagnetic flowmeter, including the manufacturer, model, production date, installation location, pipe diameter, calibration time, etc. of the flowmeter, so as to facilitate the maintenance and management of the instrument.
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