1.Overview
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www.Ludwig-Schneider.com.cn
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Intelligent Electromagnetic Flowmeter
The design and manufacture of electromagnetic flowmeters conform to the standard JB / T9248-1999
"Electromagnetic Flowmeters". It is a speed-type instrument for measuring the volumetric flow of
conductive media. While performing on-site monitoring display, it can input standard current signals
for Record, adjust, control and use, realize automatic control of detection. It can realize long-distance
transmission of signals. It is widely used in environmental protection, steel, petroleum, chemical, coal,
metallurgy, minerals, papermaking, water supply and drainage, food, medicine and other industries
The structure of liquid flow measuring instruments are integrated and separated
2.Features
·The measurement accuracy is not affected by changes in the density, viscosity, temperature,
pressure, and conductivity of the fluid. The sensor voltage signal has a linear relationship with the
average flow rate, and the measurement accuracy is high;
·Can record forward total, reverse total, and difference total;
·Low-frequency rectangular wave excitation, not affected by power frequency and on-site
interference, stable and reliable operation;
·With empty tube measurement and glance function, and can adapt to different fluid media;
·It is not affected by the direction of the fluid and can be accurately measured in both forward and
reverse directions;
·LCD backlit display, parameters can be modified online, simple and convenient operation;
·The minimum electrical conductivity of the measured liquid is N20 uS / cm. With various lining
materials, it can be used to measure the flow of various acids, alkalis, salt solutions and mud, mineral
pulp, pulp and other media;
·Chinese and English display (optional);
·There are no moving parts in the measuring tube, which is convenient for maintenance and
management;
V
-
Average fluid velocity
(
m
/
s
)』
4
/
-
Meter factor
Flow Q is：
Where：Q=3600 X V X S
The electromagnetic flowmeter is based on the principle of Faraday's electromagnetic induction law,
that is, when a conductive object moves in the magnetic field to cut the magnetic field lines, an induced
electromotive force is generated in the conductor, and the induced electromotive force E is:
D—Electrode spacing
(
m
)
E
E=KBdV
B—Magnetic induction(T) N
S—Cross-sectional area(1")
Measurement schematic
3.Measurement principle