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Operation of electromagnetic flowmeters
Electromagnetic flow meters are based on Faraday's law. Professor Faraday showed that a response voltage is generated in the conductor when it is moved in a magnetic field. The flow meter consists of an open tube with an electrically insulating material inside. At the top and bottom side there are coils that create a magnetic field. Then there are 2 electrodes arranged perpendicular to the magnetic field lines. When a conductive medium flows through the tube, a voltage is measured on the electrodes that is proportional to the velocity of the liquid.
De formula is U = v . B . D
U = the measured voltage through the electrodes
v = the speed of the medium
B = the magnetic field strength
D = the distance between the electrodes, in this case the diameter of the measuring tube
ADVANTAGES OF ELECTROMAGNETIC FLOWMETERS:
- From DN2 to DN3000
- No obstruction in the flowmeter
- No moving parts
- Maximum pressure up to 1000 bar
- Maximum temperature up to 180 °C
- Accuracy of 0.5% of the measured value
- Liquids that are electrically conductive
Electromagnetic flowmeter documentatie
- Mecon - mag-flux A Manual - Electromagnetic flow sensors
- Mecon - mag-flux F5 Manual - Electromagnetic flow sensors
- Mecon - mag-flux M1 Manual - Electromagnetic flow sensors
- Mecon - mag-flux M1 Specifications - Electromagnetic flow sensors
- Mecon - mag-flux T4 Manual - Electromagnetic flow sensors
- Sika - VMI induQ - Electromagnetic flow sensors
- Sika - VMZ induQ - Electromagnetic flow sensors"