Magnetic-inductive flow meters are based on the Faraday principle, by which a conductor which traverses a magnetic field generates a potential oriented perpendicular to that field.
The flow tube is enclosed by two flanges and also by two coils. The magnetic field which is generated by the electric current running through the coils induces a potential difference in the electrodes that is proportional to the flow being measured.
A WIKA signal converter, either attached directly to the instrument or separated from it (e.g. model FLC-608), generates the current to supply the magnetic coil, detects the potential difference between the electrodes, processes the signal to calculate the flow and manages communication with the external control systems.
Magnetic-inductive flow meters have no moving internal parts and thus have a very low pressure loss. OIML R-49 permits a maximum pressure loss of 630 mbar with a flow velocity of approx. 8 m/s.
The model FLC-2300 flow tube has a conical profile, through which the flow is accelerated and the signal to the electrodes is amplified. Due to this special feature, the model FLC-2300 flow meter has a pressure loss of less than 250 mbar at a velocity of 8 m/s.
For flow velocities of less than 1 m/s, the pressure loss is always less than 10 mbar.
The conical profile of the flow tube enables a flexible operation in numerous areas of application, since no upstream or downstream runs are required.
The maintenance-free measuring instrument is suitable for use in pits, for underground applications and also for permanent immersion under water.
Very small flow volumes can be measured precisely and repeatedly, even in difficult applications with solid components in the medium.
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