What common problems may intelligent electromagnetic flowmeters encounter?

One of the significant advantages of electromagnetic flowmeters is their high level of accuracy and reliability. With no moving parts in direct contact with the fluid, these devices experience minimal wear and tear, resulting in low maintenance requirements and increased longevity. Their versatility allows them to handle a broad spectrum of conductive liquids, from water and chemicals to slurries, making them suitable for a wide range of applications. Moreover, electromagnetic flowmeters are insensitive to changes in fluid properties, such as density, viscosity, and temperature, ensuring consistent and precise measurements across varying operating conditions.

Power Supply: AC220V (can be used for AC85-250V)
DC24V (can be used for DC20-36V)
DC12V (optional), Battery Powered 3.6V (optional)
Power Consumption: <20W Alarm: Upper Limit Alarm / Lower Limit Alarm Self-diagnosis: Empty Pipe Alarm, Exciting Alarm Explosion Proof: ATEX

During the operation of the intelligent electromagnetic flowmeter, the empty pipe alarm situation is often encountered. The so-called empty pipe alarm of the electromagnetic flowmeter refers to checking whether the measured liquid fills the controller’s measuring tube and detecting the cause of the empty pipe alarm.

In industry, a flowmeter is a type of flow measurement instrument, and an electromagnetic flowmeter is also a kind of flow instrument. Generally speaking, the types of electromagnetic flowmeters used in different occasions are also different. The classification of electromagnetic flowmeters varies depending on the method. Generally, they are conventionally classified into three types: integrated electromagnetic flowmeters, split electromagnetic flowmeters, insertable electromagnetic flowmeters, and so on. For different occasions, different types of flowmeters are required. The correct selection of electromagnetic flowmeters is a powerful boost in work efficiency.

Electromagnetic flow meters, also known as magmeters, are advanced devices used for measuring the flow rate of conductive fluids such as water and slurries. These meters operate based on the principles of electromagnetic induction. A magnetic field is generated by the meter’s coils, and as the conductive fluid flows through the meter’s pipe, it generates a voltage proportional to the flow rate. The strength of this induced voltage is directly correlated with the speed of the fluid, allowing for accurate and reliable flow measurements.

Electromagnetic flowmeter is a widely used flow meter, in the process of use will inevitably appear some failures, then how to check the cause of the failure and eliminate it, the next Aister to teach you several simple troubleshooting methods.

1. The role of the electromagnetic flowmeter grounding ring: the grounding ring is directly in contact with the medium through the grounding electrode, and then grounded with the flange of the electromagnetic flowmeter through the grounding ring to achieve equal potential with the ground to eliminate interference.

In the metering industry, electromagnetic flowmeter is a basic metering tool, and its range of use is very wide. The emergence of electromagnetic flowmeters has made great contributions to many industries, and it occupies a very important position in these industries. Pay more attention when using the electromagnetic flowmeter, check it before use to see how accurate its measurement is. The calibration of electromagnetic flowmeter is mainly considered from the following aspects:

Usually there is more or less a mixture in the fluid in the measurement of some occasions. In general, in the presence of a small bubbling flow of oil and gas bubbles, it is still able to work normally, but the measurement is a fusion of the volume of oil bubbles, if the proportion of oil and gas rises to have caused a projectile flow, then the electrode may be covered by gas, resulting in the circuit is disconnected, the output shake is more likely to be directly damaged.

There are two ways to produce bubble-like gas in liquid, which are inhaled gas from the outside or dissolved gas in the medium is transformed into a free bubble.

Intelligent electromagnetic flowmeter has a pivotal position in liquid measurement with high measurement accuracy and stable performance. It can be seen everywhere, today we mainly talk about the intelligent electromagnetic flowmeter in daily use, which parts – electrode related maintenance points:

Electromagnetic flow meter is one of the most popular flow meters. Flange type electromagnetic flow meter has been used for more than 50 years worldwide. It is widely used for all conductive liquids in every industry, such as water, acid, alkali, milk, slurry etc.

Installing electromagnetic flowmeters correctly is essential for ensuring accurate and reliable flow measurement. Here are some precautions to consider when installing electromagnetic flowmeters:

The electrode is the main part of the electromagnetic flowmeter used to measure the liquid flow, therefore, the choice of normal electrode material is directly related to the accuracy of the measurement and the price of the electromagnetic flowmeter.

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.

Intelligent electromagnetic flowmeter measurement accuracy is high, stable performance, is a very common product in the flow meter, widely used in petroleum, chemical, food and other industries, especially water resources system, almost everywhere can see the figure of intelligent electromagnetic flowmeter, but the measured medium in these occasions is a single liquid, then with intelligent electromagnetic flowmeter can measure the mixture, Aister meter is your answer.

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.

The plug-in electromagnetic flowmeter is an instrument for measuring conductive liquids, which is made based on Faraday’s law of electromagnetic induction. This type of instrument, due to its simple structure, light weight, easy installation and low maintenance, is used to measure the volume flow of non-corrosive (water supply and drainage) conductive liquids in closed pipelines.

The measurement principle of the electromagnetic flowmeter is Faraday’s law of electromagnetic induction. It is an instrument that measures the flow of conductive fluids based on the induced electromotive force when the conductive fluid passes through an external magnetic field.

Notes in the use of electromagnetic flow:

1, because the induction signal voltage of the electromagnetic flowmeter is very small, it is easy to be affected by noise. The reference potential must be the same as the liquid being measured. The correct grounding of electromagnetic flowmeter is directly related to the accuracy and stability of measurement.

The converter direction of an electromagnetic flowmeter refers to the orientation or alignment of the flowmeter’s electronic converter unit concerning the flow direction within the pipe. Electromagnetic flowmeters typically have a preferred or specified direction for the converter to achieve optimal performance. The converter contains the electronics and signal processing components essential for accurate flow measurement.

With the speeding up of urbanization process in our country, environmental pollution is increasingly serious. Because in sewage treatment, it is necessary to analyze and control the discharged sewage, additives, sludge, etc., so the flow measurement is very important. Among the many flowmeter products used for sewage measurement, electromagnetic flowmeter measurement accuracy is higher.

Precision and flow rate of electromagnetic flow meter

Advantages and disadvantages of electromagnetic flowmeter

Electromagnetic flow meters offer several advantages, making them a popular choice in various industrial applications. Here are some of the key advantages of electromagnetic flow meters:

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.

Size: DN3-DN3000mm
Nominal Pressure: 0.6-1.6Mpa(2.5Mpa/4.0Mpa/6.4Mpa…Max 42Mpa)
Accuracy: +/-0.5%(Standard), 0.3% or 0.2% (Optional)
Liner: PTFE, Neoprene, Hard Rubber, EPDM, FEP, Polyurethane, PFA
Output Signal: 4-20mA/Pulse

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?

When using electromagnetic flowmeters in the field, it’s important to perform regular checks and maintenance to ensure accurate and reliable flow measurements. Here are some key parameters to check and consider in the field for electromagnetic flowmeter use:

The requirements of the straight tube section of the electromagnetic flowmeter are very important to ensure the accuracy and stability of the measurement results. The following is a detailed analysis of the requirements of the straight pipe section before and after the electromagnetic flowmeter:

Electromagnetic flowmeter in the industry has achieved good results, then as the core accessories of electromagnetic flowmeter – electrode, electrode is contact with the measured medium more accessories, then the cleaning details of the electrode is a crucial point, of course, also pay attention to a certain method.