With the continuous improvement of industrial automation, the requirements of industrial automation manufacturers in all walks of life for instruments are also increasing. The most representative one is the electromagnetic flowmeter, and professional electromagnetic flowmeter manufacturers have become everyone's trusted choice. The electromagnetic flowmeters produced by different electromagnetic flowmeter manufacturers will have large or small differences, so how to judge whether an electromagnetic flowmeter is suitable for your required working conditions?

How does the electromagnetic flowmeter work?

To understand the electromagnetic flowmeter, you must first understand its measurement principle. The working principle of the electromagnetic flowmeter is based on the electromagnetic induction principle of the flange. A pair of detection electrodes is installed on the tube wall perpendicular to the axis of the measuring tube and the magnetic force line. When the conductive liquid moves along the axis of the measuring tube, the conductive liquid cuts the magnetic force line to generate Induction potential, the induction potential is detected by two detection electrodes, and the value is proportional to the flow velocity. The sensor transmits the induced electromotive force as a flow signal to the converter, and after signal processing such as amplification, transformation, and filtering, the instantaneous flow and cumulative flow are displayed with a dot matrix liquid crystal with backlight.

Conductivity

According to the working principle of the electromagnetic flowmeter, the fluid that can be used to measure the flow of the electromagnetic flowmeter must be conductive. Strictly speaking, except for high-temperature fluids, any fluid with a conductivity greater than 20 us/cm can use a corresponding electromagnetic flowmeter to measure the flow, because non-conductive gases, steam, oil, acetone, and other substances cannot use an electromagnetic flow meter to measure flow.

Caliber selection

In industrial processes, large-diameter meters are mostly used in water supply and drainage projects. Small and medium calibers are often used in solid-liquid double-phase difficult-to-measure fluids or places with high requirements, such as measuring paper pulp and black liquor in the paper industry, ore pulp in the non-ferrous metallurgy industry, coal slurry in coal preparation plants, strong corrosive liquid in the chemical industry, and blast furnace tuyere in the steel industry. Cooling water control and leakage monitoring, flow measurement, and control of hydraulic transportation of coal in long-distance pipelines. Small-caliber and micro-caliber are often used in places with hygienic requirements such as the pharmaceutical industry, food industry, and bioengineering. Electromagnetic flowmeters can be used for measurement in the above occasions.

Lining and motor selection

The lining material of the electromagnetic flowmeter is mainly made of rubber lining and PTFE lining. The rubber lining is mainly suitable for wear-resistant media. The rubber lining is mainly neoprene and polyurethane rubber. Polyurethane rubber is suitable for strong wear media. PTFE The lining is mainly suitable for corrosion-resistant media. The PTFE substrate is mainly polytetrafluoroethylene and polyperfluoroethylene propylene. The material of polytetrafluoroethylene propylene is suitable for strong abrasive media. Electrode materials are mainly divided into molybdenum-containing stainless steel, Hastelloy B, Hastelloy C, titanium tantalum, and stainless steel carbide.

When you have a certain understanding of the electromagnetic flowmeter, you can naturally choose the electromagnetic flowmeter that suits you through your own judgment. According to the measured flow range, pipe diameter, anti-corrosion materials are required, etc., select a professional electromagnetic flowmeter manufacturer purposefully. If you still have doubts about this, you may wish to go to the automation instrument manufacturer to try to consult. Hangzhou ARTang Automation Co., Ltd. is a professional manufacturer of electromagnetic flowmeters. There are professional technical engineers in-house to provide you with selection guidance. Their after-sales service also extends to many cities around the world, and they will help you as soon as possible if you have any after-sales problems. They are a veritable professional electromagnetic flowmeter manufacturer.

Choosing electromagnetic flowmeter manufacturer 

1. Product quality and accuracy 

Accuracy and stability: the core of flowmeter lies in its measurement accuracy and stability. Choose those products that use advanced technology, with high precision and good stability.

Material selection: focus on the choice of materials for the flowmeter, such as stainless steel, aluminum alloy, etc. These materials have an important impact on the durability of the product, corrosion resistance and cost.

2. Technical strength and R&D capability 

R&D team: examine whether the manufacturer has a professional R&D team, as well as the background and experience of the team members.

Technological innovation: to understand the manufacturer in the field of flowmeter technical innovation capabilities and achievements, such as whether the manufacturer has independent intellectual property rights of patented technologies.

3. Production capacity and scale 

Production scale: assess the manufacturer's production scale, including the number of production lines, the degree of equipment sophistication and annual production capacity.

Delivery capacity: Understand the delivery cycle and capacity of the manufacturer to ensure that it can meet your procurement needs and on-time delivery.

4. After-sales service and support 

Technical support: find out whether the manufacturer provides comprehensive technical support, including product selection, installation and commissioning, troubleshooting and so on. Good technical support can ensure that the problems you encounter in the process of use can be resolved in a timely manner.

After-sales service system: assess whether the manufacturer's after-sales service system is perfect, including after-sales service response time, maintenance service scope, spare parts supply. High-quality after-sales service can reduce your cost of use and enhance the service life of the equipment.

In summary, when choosing a manufacturer of electromagnetic flowmeter, you should consider product quality, technical strength, production capacity, market reputation and after-sales service and other aspects. By comparing the advantages and disadvantages of different manufacturers, choose the most suitable for your needs to ensure that the procurement of high-quality, high-performance electromagnetic flowmeter.