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1. What are the classifications of electromagnetic flow meters? According to the measurement principle and structural characteristics of electromagnetic flow meters, different classifications can be made, including: Xiangdan 1 Electromagnetic induction electromagnetic flowmeter and liquid capacitive electromagnetic flowmeter: These are two common measurement principles of electromagnetic flowmeters. The working principle of an electromagnetic induction flowmeter is based on Faradays law of electromagnetic induction, which measures the flow rate by inducing the magnitude of the electromotive force in the measured medium through a magnetic field. The measurement principle of capacitive electromagnetic flowmeter is to use the capacitance change of the measured liquid between the electrodes to measure the liquid flow rate. 2. Insertion electromagnetic flowmeter and diameter electromagnetic flowmeter: Insertion electromagnetic flowmeter is easy to install and suitable for large-diameter flow measurement. The installation of diameter electromagnetic flow meters is relatively complicated, but the accuracy is relatively high. Full tube electromagnetic flow meters and split type electromagnetic flow meters: Full tube electromagnetic flow meters refer to flow meters that integrate sensors and converters, while split type electromagnetic flow meters separate sensors and converters for installation. Water supply and drainage electromagnetic flow meters and industrial electromagnetic flow meters: Water supply and drainage electromagnetic flow meters are suitable for the water supply and drainage industry, water treatment industry, and other fields, while industrial electromagnetic flow meters are suitable for industrial productio
2. Two wire electromagnetic flowmeter specifications
The two wire electromagnetic flowmeter with integrated structure adopts dual frequency excitation method and is suitable for pipelines of different specifications.
. The nominal pipe size range is wide, generally ranging from 25mm (1.0 inch) to 100mm (4.0 inches), and explosion-proof types also cover this range. Its working voltage is between 14.7 and 35V DC, using a two-wire system to provide current output, including digital output options, supporting pulse, alarm, or status output. The electrode material is made of high-quality stainless steel JIS SUS316L (AISI 316L SS/EN 1.4404), or Hastelloy C276, tantalum, platinum iridium and other materials, which have good corrosion resistance. The fluid temperature adaptation range is -40 to 130 ℃ (-40 to 266 ℉), depending on the model. The ambient temperature is limited to -40 to 55 ℃ (-40 to 131 ℉). For conductivity, flow meters require a fluid conductivity of at least 10 µ S/cm, which is also influenced by nominal pipeline size and fluid conditions. The lining is made of PTFE PFA material, and the surface has been treated with a mirror mesh. The laying length is divided into two types according to the flange size: flange size 80mm (3.0 inches) to 100mm (4.0 inches) and flange size 25mm (1.0 inches) to 100mm (4.0 inches). The flowmeter is equipped with a full dot matrix LCD display, which is easy to operate and comes with 4 electromagnetic switches, including a button switch. Equipped with self diagnosis and excavation functions, it can detect electrode contamination, coil breakage, and other issues, and display alarm information and correspon
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