HYDRA ELECTROMAGNETIC FLOWMETER

WORKING PRINCIPLE

The HYDRA Series electromagnetic flowmeter contains two coils. These coils, with the help of metal blocks placed on them, create a continuous magnetic field across the cross-sectional area of the measurement tube. Two electrodes that detect voltage are placed perpendicular to each other inside the measurement tube. The insulating material coated on the inner surface prevents the formation of short circuits between the conductive liquid and the metal measurement tube. When there is no flow, no electrical voltage is generated between the two electrodes. In the conductive liquid, negatively and positively charged ions are present in equal amounts. When flow starts, the magnetic field applies a force to the charged ion particles in the liquid.

As a result, the negatively and positively charged ions move apart and head toward opposite sides of the measurement tube. This leads to an electrical voltage detected by the electrodes. This voltage is directly proportional to the flow rate within the pipe. With the known volume and speed information of the measurement tube, the instanta-
neous flow rate can be calculated. As the flow rate increases, the separation of charged particles also increases, and thus, the voltage between the electrodes will rise. The measurement electrodes may sometimes detect magnetic noise present in the environment. It is essential to differentiate this noise signal from the actual measurement signal. To achieve this, the magnetic field must be generated with pulsed direct current. With pulsed direct current, the positions of the charged ions between the electrodes are continuously shifted, eliminating the effect of magnetic noise, allowing for precise and stable flow measurement.
HYDRA Series electromagnetic flowmeters can be easily used for volumetric flow measurements of
water and wastewater applications, as well as any water-based or conductive liquids.
In addition, with a wide range of internal coating and electrode material options, they offer relia-
ble solutions for volumetric flow measurement of acids, alkalis, and corrosive chemicals used in
the industry. Furthermore, electromagnetic flowmeters are widely used in the mining and paper
industries for volumetric flow measurements of special products like ores, sludges, slurries,
pastes, and pulps.
Since there are no moving parts in the HYDRA Series electromagnetic flowmeter, it does not cause any
changes in process pressure, and maintenance costs are very low. Additionally, thanks to this feature,
it provides "full passage" and has a very wide measurement range.HYDRA Series electromagnetic flowmeters can be easily used for volumetric flow measurements of
water and wastewater applications, as well as any water-based or conductive liquids.
In addition, with a wide range of internal coating and electrode material options, they offer relia-
ble solutions for volumetric flow measurement of acids, alkalis, and corrosive chemicals used in
the industry. Furthermore, electromagnetic flowmeters are widely used in the mining and paper
industries for volumetric flow measurements of special products like ores, sludges, slurries,
pastes, and pulps.
Since there are no moving parts in the HYDRA Series electromagnetic flowmeter, it does not cause any
changes in process pressure, and maintenance costs are very low. Additionally, thanks to this feature,
it provides "full passage" and has a very wide measurement range.

APPLICATION AREAS
HYDRA Series electromagnetic flowmeters can be easily used for volumetric flow measurements of water and wastewater applications, as well as any water-based or conductive liquids. In addition, with a wide range of internal coating and electrode material options, they offer relia- ble solutions for volumetric flow measurement of acids, alkalis, and corrosive chemicals used in the industry. Furthermore, electromagnetic flowmeters are widely used in the mining and paper industries for volumetric flow measurements of special products like ores, sludges, slurries, pastes, and pulps. Since there are no moving parts in the HYDRA Series electromagnetic flowmeter, it does not cause any changes in process pressure, and maintenance costs are very low. Additionally, thanks to this feature, it provides "full passage" and has a very wide measurement range.