What are the technical requirements for electromagnetic flow meter selection?

Abstract: What are the technical requirements for electromagnetic flow meter selection? The information is provided to you by the excellent manufacturers of flowmeters and flowmeters. According to the main types and performance of typical mainstream products of electromagnetic flowmeters, the selection has the following requirements: (1) The medium to be measured, measuring fluids Electromagnetic flowmeters can only measure conductive liquids, but cannot measure gases, oils and organic chemicals, etc. Non-conductive fluid. Usually electric. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. What are the technical requirements for electromagnetic flowmeter selection? Article details. According to the main types and performance of typical mainstream products of electromagnetic flowmeters, the selection has the following requirements: (1) The medium to be measured, measuring fluids Electromagnetic flowmeters can only measure conductive liquids, but cannot measure gases, oils and organic chemicals, etc. Non-conductive fluid. Usually the conductivity is 5µFor fluids above S/cm, general instruments can be selected. For conductivity 0.01µFor liquids above S/cm, and for slurry fluids containing solid particles and fibers, capacitive electromagnetic flowmeters can be used. (2) Products with nominal diameter DN (3'''-'3OOO) mm are available. (3) Excitation modes include rectangular wave excitation (two-way pulse, ternary wave, dual frequency), power frequency sine wave, and high frequency excitation mode. (4) The measurement range is converted to flow velocity: 0'''-'0.3m/s to 0'''-'12m/s are available. (5) Measurement accuracy The measurement error is±(0.2'''-'1)%FS, optional. (6) Structure The combination of the sensor and the converter is optional. (7) Wetted material: ①The lining is made of PTFE, rubber, polyurethane rubber, high-purity alumina, and ceramics. ② Electrodes include 316L stainless steel containing symplectic mesh, Hastelloy B, Hamin alloy C, aluminum, iron, conductive ceramics, uranium alloy, etc. ③Wetted parts 1Crl8Ni9Ti, 316L stainless steel with symplectic mesh, Hastelloy B, Hastelloy C, indium, iron, conductive ceramics, lead-based alloys, etc. Aluminum-bulk sintered type. (9) Medium temperature Fluoroplastic: one 10'''-'120°C (integrated type, split type 190°C). Rubber and Polyaminase: A 10'''-'60°C. High Purity Alumina:-10'''-'160°ce is related to ambient temperature and working pressure). (10) Connection methods: Flange connection, clamping type, quick connector, clamp type. (11) Power supply: AC: 85-----265yea.c.); There are two frequencies: 50Hz and 60Hz. DC: 16-----36V(d.c.)(12) Output signal: DC: 4r-....-20mA; Frequency: 0r-....-5kHz. (13) There are three types of installation forms: DN50 pipe column installation, wall installation and panel installation. (14) Select the flowmeter according to the application: ①Continuous immersion protection grade IP68: Water supply and drainage, sewage treatment installations are mostly in the wells of underground pipelines, rainwater and underground seepage often make the flowmeter immersed in water, or dew in winter, reducing The dielectric strength of terminals and coils affects product performance and shortens the service life of the flowmeter. ②Submersible type: It is used for open channel flow measurement, replacing the traditional Kanban flowmeter. ③Explosion-proof type: used in the environment with explosive gas, such as chemical industry, coal mine, oil field. ④Hygienic type: It is easy to disassemble, rinse and sterilize, and can be installed quickly. It is suitable for use in food and medicine departments. ⑤High pressure type: for drilling circulating mud in petrochemical industry, cementing mud, high pressure water injection in oil production process, etc. ⑥ General type: suitable for general purposes other than those mentioned above. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'What are the technical requirements for electromagnetic flow meter selection? 》

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