Today we bring you an introduction to the cleaning method of the plug-in electromagnetic flowmeter.
Electromagnetic flowmeter is composed of electromagnetic flow sensor and electromagnetic flow converter. The main components are measuring tube, electrode, excitation coil, iron core and yoke, housing. The measuring tube of the sensor is a short non-magnetic alloy tube lined with insulating material.
Electromagnetic flowmeter is a kind of induction instrument which measures the volume flow of conductive medium in tube according to Faraday’s law of electromagnetic induction. The electromagnetic flowmeter adds a magnetic field on both sides of the pipeline, and the measured medium flows through the pipeline to cut the magnetic force line, generating an induced potential on the two detection electrodes, and its size is proportional to the speed of fluid movement.
Electromagnetic flowmeter mainly has two kinds of pipe segment type and plug-in type, and is divided into two types of body type and sub-body type, of which the plug-in electromagnetic flowmeter is suitable for DN300 or more pipelines.
Electromagnetic flowmeter is composed of two parts: sensor and converter. It is based on Faraday’s law of electromagnetic induction work, used to measure the conductivity of more than 20μS/cm conductive liquid volume flow, electromagnetic flowmeter is a measurement of conductive medium volume flow induction instrument.
For the pipeline supporting the electromagnetic flowmeter, the factors affecting the accuracy of the plug-in electromagnetic flowmeter are mainly the length of the straight pipe section and the inner diameter of the pipeline:
Electromagnetic flowmeter in use, we need to pay attention to what? Today for you to do a simple description, I hope you pay attention to the following points about the maintenance of electromagnetic flowmeters:
Electromagnetic flowmeter is composed of two parts: sensor and converter. It is based on Faraday’s law of electromagnetic induction, used to measure the volume flow of conductive liquid with an electrical conductivity greater than 5μS/cm, is a kind of induction instrument to measure the volume flow of conductive medium.
With the continuous acceleration of industrialization, the problem of environmental pollution is becoming more and more serious, and the call of society for sustainable development is getting higher and higher, so the control of pollution is more urgent.
The shortage of water resources and the impact of sewage on the environment are the two major problems facing the solution of water resources. In the process of solving these problems, the flowmeter has a role that cannot be ignored. Choosing a good sewage flowmeter plays a crucial role in solving the problem.
The selection of flow meters should consider many factors, such as diameter size, medium flow, pressure, density, fluid flow state, installation environment, etc., so how to choose a large number of sewage flowmeters?
We have introduced a lot of relevant information about electromagnetic flowmeters before, and today we mainly introduce several typical installation errors to help you avoid these problems.
The insert type electromagnetic flowmeter is an instrument used to measure conductive liquids, especially for large diameter pipe measurements.
The thermal gas mass flowmeter is an instrument for measuring fluid flow by using the principle of heat conduction. The instrument uses constant temperature difference method to accurately measure the gas mass flow. The thermal gas mass flowmeter has the advantages of small size, high digitization, easy installation and accurate measurement.
Battery-powered electromagnetic flowmeter is a metering instrument designed for water supply enterprises, which can optimize water use and ensure accurate water measurement.
Reasonable selection and correct installation of the electromagnetic flowmeter is very important to ensure the measurement accuracy and extend the service life of the instrument. The following is a brief introduction to the selection of electromagnetic flowmeter principles, installation conditions and precautions for use.
The grounding of the electromagnetic flowmeter is equipped with a grounding ring, and then the grounding ring is connected to the pipeline. If it’s lined, you need a third electrode to ground it.
Electromagnetic flowmeter as a commonly used flow measurement instrument, the choice of its material is also an important factor. Because in the electromagnetic flowmeter, the part in contact with the medium is only the electrode and the inside of the measuring tube, it is necessary to select the correct electrode and lining material according to the characteristics of different media.
Electromagnetic flowmeter is a kind of high precision, high reliability and long service life flow surface, which is composed of two parts: the sensor that directly contacts the pipeline medium and the upper end signal converter.
The role of electromagnetic flow meter grounding in actual installation. Compared with other flowmeter products, electromagnetic flowmeter has high precision, reliable performance, stable work and excellent anti-interference ability. However, as a precision instrument, in order to meet these high requirements, it is necessary to have strict installation requirements, this article will introduce the electromagnetic flowmeter grounding wire that is often not paid attention to when installing.
What are the requirements for the installation environment of the electromagnetic flow meter?
Electromagnetic flowmeters are classified according to the assembly method of converters and sensors, with split type and one type. Split type electromagnetic flowmeter is relative to the integrated, its components are: measuring tube, electrode, excitation coil, iron core and yoke housing. Used to measure the volume flow of conductive liquid and slurry in closed pipes.
For the daily inspection of the electromagnetic flow meter, in addition to the inspection of the sensor we talked about last time, it is also necessary to check the sensor of the electromagnetic flow meter, connecting cables, etc., below we will understand how to operate.
According to the principle formula of the electromagnetic flowmeter, the induced signal potential is not affected by the change of conductivity and temperature, pressure, density and viscosity when the liquid conductivity is uniform. However, in the actual measurement, due to the following reasons, the electrical conductivity will also have some impact on the measurement.
