Electromagnetic Flow Meter

Intelligent electromagnetic flowmeter is an intelligent electromagnetic flowmeter developed by our company with the most advanced technology at home and abroad.The electromagnetic converter core USES high speed CPU.The calculation speed is very fast, the precision is high, the measurement performance is reliable.The input impedance is up to 1015 ohms, the common mode rejection ratio is better than 100db, and the interference rejection capacity of 60Hz/50Hz is better than 90db, which can measure the flow rate of fluid medium with lower conductivity.The sensor adopts the non-uniform magnetic field technology and the special magnetic circuit structure, the magnetic field is stable and reliable, and greatly reduces the volume, reduces the repetition, makes the flowmeter small flow quantization characteristic.

Characteristics

● Acid, alkali, salt liquid measurement
● Lining material, electrode material optional
● Multiple calibers (DN10-DN1200)
● Pulse, 4-20mA, RS 485 output
● Integrated, plug-in, split type optional
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    The measurement principle of electromagnetic flowmeter is based on Faraday's electromagnetic induction law.The measuring tube of the flowmeter is a short non-magnetic alloy tube lined with insulating material.Three electrodes are fixed on the measuring tube through the pipe wall along the diameter direction.The electrode head is basically flush with the inner surface of the lining.When the excitation coil is excited by two wave pulses, a working magnetic field with a magnetic flux density of B will be generated in the direction perpendicular to the measuring tube axis.At this point, if the conductivity of the fluid flow through the measuring tube.The electromotive force E is induced by cutting the field lines.electromotive force E is proportional to the magnetic flux density B and measures the product of tube diameter d and average velocity v.The E (flow signal) is detected by the electrode and sent through the cable to the converter.After the converter amplifies the flow signal, it can display the flow rate, and output pulse, analog current and other signals for flow control and regulation.

    Nominal diameter（mm）

    Pipe PTFE  lining：DN10~DN600

    Pipeline rubber lining：DN40~DN2000

    Flow direction

    Forward and reverse flow

    Repeatability error

    Measured value ±0.1%

    Precision grade

    ±0.5%，±1.0%

    Temperature of the measured medium

    Conventional rubber lining：-20℃~+60℃

    High temperature rubber lining：-20℃~+90℃

    PTFE  lining：-30℃~+120℃

    High PTFE  lining：-20℃~+160℃

    Rated working pressure (high pressure can be customized)

    DN10~DN25 ≤4.0MPa

    DN32~DN150 ≤1.6MPa

    DN200~DN600 ≤1.0MPa

    DN700~DN2000 ≤0.6MPa

    Signal output

    4 ~ 20 mA, pulse, RS485

    Power supply

    AC220V;DC24V; Battery

    The length of the straight pipe is required

    Upstream ≥5DN, downstream ≥2DN

    Connection  mode

    Flange connection, threaded connection ,sanitary grade clamp connection

    Protection grade

    IP65 ,can be customized IP68







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