The electromagnetic flowmeter is a meter for measuring conductive liquids made according to the law of Faraday's electromagnetic induction.
The electromagnetic flowmeter has a series of excellent characteristics, which can solve the problems that other flowmeters are not easy to apply, such as the measurement of dirty and corrosive flows.
In the 1970s and 1980s, the electromagnetic flowmeter had a major breakthrough in technology, making it a widely used type of flowmeter , and its percentage of use in flow meters has been rising.
(1) The measuring channel is a smooth straight tube, which will not block, and is suitable for measuring liquid-solid two-phase fluids containing solid particles , such as pulp , mud , sewage, etc .:
(2) No pressure loss caused by flow detection, good energy saving effect:
(3) The measured volume flow is actually not significantly affected by changes in fluid density, viscosity , temperature, pressure, and conductivity :
(4) Large flow range and wide caliber range:
(5) Corrosive fluids can be used.
(1) Cannot measure liquids with very low conductivity, such as petroleum products;
(2) Cannot measure gas, steam and liquid containing large bubbles;
(3) Cannot be used at higher temperatures.
The electromagnetic flowmeter has a wide range of applications, and large-caliber meters are mostly used in water supply and drainage projects; small- and medium-calibers are often used in high-demand or difficult-to-measure applications, such as cooling water control in the blast furnace tuyere of the steel industry, measuring pulp and black liquor in the paper industry, Strong corrosive solution, non-ferrous metallurgy industry slurry; small and small calibers are often used in places with health requirements such as the pharmaceutical industry, food industry, and biochemistry.
Instrument accuracy: pipeline 0.5, 1.0; plug-in 2.5
Measurement medium: Various liquid and liquid-solid two-phase fluids with conductivity greater than 5 μS / cm.
Velocity range: 0.2 ～ 8m / s
Working pressure: 1.6MPa
Ambient temperature: -40 ℃ ～ + 50 ℃
Medium temperature: Teflon lining≤180 ℃
Rubber lining≤65 ℃
Explosion-proof mark: ExmibdⅡBT4
Explosion-proof certificate number: GYB01349
External magnetic interference: ≤400A / m
Housing protection: integrated type: IP65;
Separate type: Sensor IP68 (5 meters underwater, rubber lining only)
Output signal: 4 ～ 20mA.DC, load resistance 0 ～ 750Ω
Communication output: RS485 or CAN bus
Electrical connection: M20 × 1.5 internal thread, φ10 cable hole
Power supply voltage: 90 ～ 220V. AC, 24 ± 10% V.DC
Maximum power consumption: ≤10VA
Jinhu Dongxiang Instrument Co., Ltd. electromagnetic flowmeter related products: split electromagnetic flowmeter , explosion-proof electromagnetic flowmeter , intelligent anticorrosive electromagnetic flowmeter , plug-in electromagnetic flowmeter