Electromagnetic Flow Meter

An electromagnetic flowmeter is a flowmeter that performs flow measurement
according to Faraday's law of electromagnetic induction. The advantage of the
electromagnetic flowmeter is that the pressure loss is tiny small, and the
measurable flow range is large.
The ratio of the maximum flow to the minimum flow is generally more than 20: 1,
the applicable industrial pipe diameter range is wide, up to 3m, the output
signal and the measured flow rate are linear, the accuracy is high, and the
conductivity can be measured ≥ 5μs / cm Fluid flow of acids, alkalis, salt
solutions, water, sewage, corrosive liquids and mud, ore pulp, paper pulp, etc.
But it cannot measure the flow of gas, steam and pure water.
Introduction to electromagnetic and ultrasonic flow meters
The display method of electromagnetic flowmeter is divided into split
electromagnetic flowmeter, integrated electromagnetic flowmeter. The nominal
diameter of the series is DN15 ～ DN3000.
The split electromagnetic flowmeter is an inductive instrument that measures
the volume flow rate of the conductive medium in the tube according to
Faraday's law of electromagnetic induction. It uses single-chip embedded
technology to achieve digital excitation. At the same time, the CAN field bus
is used on the electromagnetic flow meter. It is a domestic initiative. The
technology has reached the domestic leading level.
Features of Electromagnetic Flow Meter
The electromagnetic flowmeter has no moving parts and no flow blocking parts,
which will not cause pressure loss, and will not cause problems such as wear
and blockage.
Electromagnetic flowmeter is a volume flow measuring instrument, which is not
affected by the temperature, viscosity, density and conductivity (within a
certain range) of the measured medium during the measurement process.
The range of electromagnetic flowmeter is wide, up to 1: 100. In addition, the
electromagnetic flowmeter is only proportional to the average flow rate of the
measured medium, and has nothing to do with the axisymmetric flow state
(laminar flow or turbulent flow).
Electromagnetic flowmeters have no mechanical inertia, are sensitive to
reaction, can measure instantaneous pulsating flow, and have good linearity, so
the measurement signal can be directly converted into a standard signal output
by the converter. The LD-T type can be indicated locally, and the LD type can
be transmitted over a long distance.
Application of Electromagnetic Flow Meter
Electromagnetic flowmeters are widely used in sewage, fluorinated chemicals,
production water, tap water industry, medicine, steel, etc.
Because the principal determines that it can only measure conductive liquids.
Although it is much better than other types of flowmeters in terms of
reliability and stability, but customers will still have some problems during
actual use.

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