Introduction
This compact electromagnetic flowmeter (magmeter) integrates transmitter and sensor in one unit.It features a compact design, flexible installation, and infrared remote control for easy commissioning.It measures volumetric flow of conductive liquids above 2μS/cm and is widely used in various industries.
Standard: JB/T 9428-2015 Electromagnetic Flow Sensors.
Specification
Measuring principle
The electromagnetic flowmeter (also magmeter) adopts an advanced low-frequency square wave excitation design, and its working principle is based on Faraday’s law of electromagnetic induction. Two electromagnetic coils at the upper and lower ends generate a constant or alternating magnetic field. When the conductive medium flows through the magmeter, the induced electromotive force (E) can be detected between the left and right electrodes on the flowmeter tube wall.
The magnitude of induced electromotive force (voltage) is proportional to the velocity (V) of the conducive flow, the density of the magnetic field(B), and the electrode spacing(D).
E=K×B×V×D
Where: E－Induced electromotive force
K－Meter Tube Constant
B－Magnetic Flux Density
V－Average Flow Velocity
D－Electrode Spacing
