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What are the advantages of a plug-in ultrasonic flowmeter? Ultrasonic flow meters can be divided into external clamp type (non-contact with the medium), insertion type, and pipe section type. Advantages of plug-in ultrasonic flowmeter: 1. It can be installed under pressure online, and the production pipeline does not need to be stopped during construction. There is no need to disconnect the pipeline and weld the flange, which saves unit time and expenses; 2. The product has low power consumption, with a power supply of DC24V and a power of 5W, making it safer for measuring tap water, river water bridges, seawater, and other situations; 3. The protection level of the converter is IP65, the surface is designed without screws, the appearance is high-end and atmospheric, and the service life of the button panel is over 200000 times; 4. The sensor has a protection level of IP68 and can be immersed in water for operation; 5.4~20mA current output, RS485 communication, standard MODBUS protocol, can be networked or connected to GPRS module to achieve remote transmission of data or data; 6. Independent menu operation, LCD backlight display, clear data reading at a glance; 7. Daily, monthly, and annual flow accumulation functions...2. What are the commonly used flow meters for sewage flow monitoring?
3. What are the application scenarios of electromagnetic flow meters?
1、 The universal type of electromagnetic flowmeter is commonly used in industries such as metallurgy, petrochemicals, papermaking, textiles, water supply and drainage, sewage treatment, as well as pharmaceuticals, food, biology, and fine chemicals. It is the main type of electromagnetic flowmeter. There is a range requirement for t
2、 Electromagnetic flowmeter explosion-proof type is used in places with explosive atmospheres. Due to the large energy of excitation current, explosion-proof type is still the main type at present. In recent years, foreign countries have introduced the essential safety type, namely the safety spark type electromagnetic flowmeter, which greatly reduces the excitation power and can be made into an integrated unit that can be installed in hazardous areas for operation.
3、 Electromagnetic flow meters are used in industries such as medicine, food, and biochemistry. They must meet relevant hygiene requirements in terms of timed sterilization and easy disassembly and cleaning.
4、 Electromagnetic flowmeter anti immersion type is used for sensors installed underground and can withstand short-term water immersion.
5、 The submersible electromagnetic flowmeter is used to measure the flow rate of open or non full pipe culverts when free surface flow occurs. The sensor is located under the open channel interception baffle and works underwater for a long time. The structure and usage are different from general electromagnetic flow meters.
6、 Electromagnetic flowmeter plug-in type is used for electromagnetic flow sensors with large pipe diameters. Sensors are inserted radially from pipeline openings to measure local flow velocity and calculate flow rate, with low accuracy but low cost, suitable for control systems.
4. Types and principles of flow meters
1. Mechanical principles: Instruments belonging to this type of principle include differential pressure type and rotor type using Be