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Electromagnetic flowmeter


What is Magnetic Flow Meter?

Magnetic flow meter, also technically an electromagnetic flow meter or more commonly just called a mag meter, is one of most common flow meters which follows the Faraday law of electromagnetic induction. A magnetic field is applied to the metering tube, which results in a potential difference proportional to the flow velocity perpendicular to the flux lines. The physical principle at work is electromagnetic induction. The magnetic flow meter requires a conducting fluid, for example, water that contains ions, and an electrical insulating pipe surface, for example, a rubber-lined steel tube.

Magnetic flow meters are made up of sensor, transducer, LCD screen, current and pulse output, alarm signal etc. They are widely used to accurately measure the flow rate of liquids which are electrical conducting throughout industries of petroleum, chemical engineering, pharmacology, papermaking, electric power, environmental protection and so forth.


Features of Magnetic Flow Meter

·         The stability of flux measurement has been improved

·         Electrode structure with high reliability

·         Excellent choice for low pressure systems with minimal pressure losing

·         Corrosion protection, abrasion resistant

·         High accuracy, stable performance and wide measuring dimensions

·         High level of anti-vibration and anti-jamming

·         Virtually maintenance free as no moving parts or obstructions in the fluid stream

·         Lining and built-in grounding electrode are both applicable

·         EEPROM protects the set parameters and accumulated values in case of power failure

·         High-definition LCD Backlight Display


Technical Specifications of Magnetic Flow Meter

Measuring fluid

conductive fluid



Electrode materials

Mo2Ti  HC  HB  Pt  Ta  Ti

Lining Material

PTFE, PFA (resistance to negative pressure), chloroprene rubber, polyurethane, hard rubber (optional conductive ground rubber ≥ DN125)

Electrode Type

Standard type, scraper-type (DN ≥ 50)

Dielectric conductivity

> 5μs/cm (water> 20μs/cm)

Accuracy grade








It is a microprocessor-controlled transmitter. It displays measured values in both Chinese and English. There are two versions with remote and compact.



Process condition

Ambient temperature:                   –25~+60°C

Relative humidity:                       5%~90%

Power supply:                          85~265VAC,48~63Hz or DC 24V

Consumption:                          less than 20W


0.07%, 0.1%, 0.17% of the measured value.

Current output

Current output:                         0~10mA with electric isolation,

                                       4~20mA with electric isolation

Load resistance:                        0~1.5kΩ for  0~10mA

                                       0~750Ω for  4~20mA

Basic error:                             Basic error of the measured value plus ±10μA




Display with English and Chinese, five characters for flowrate and ten characters for volume.


Two alarms are the collector of transistor open output with galvanic isolation. External power supply should be less than 30V, and maximum current for the collector is 250mA when it works.

Alarm output for the following faults: Empty pipe direction, analog exceeds its range, frequency exceeds its range and the fault for magnetic field excitation.

Adds:Jinnan Industrial Park, Tianjin, China  Tel:+86 22 88971536  Fax:+86 22 88971536
Copyright level sensors and flow meters Tianjin U-ideal Instrument Co., Ltd ( Hebei Xukang Meter Manufacturing Co.,Ltd) all right reserved.

Tianjin U-ideal Instrument co., ltd is one of esteem company with collection of scientific research, development and sales. We have abundant technical capacity, special scientific research teams with advanced producing and checkout equipment.

Tianjin U-ideal Instrument Co., Ltd produce and sell Magnetic Level Indicator, bi-color quartz glass tubular level gauge, liquid level switch, float switch, level sensor, level transmitter, level switch, tank gauge, water gauge, liquid level instrument, ultrasonic level sensor, flow meter, PD flow meter, oval gear flow meter, dual-rotor turbine flowmeter, duplex rotor meter, vortex flow meter, turbine flowmeter, electromagnetic flowmeter, metal rotary flow meter and valves,oil/water industrial control systems.

We are TIANJIN U-IDEALINDUSTRIES COMPANY , have accumulated abundant experience especially in high temperature and high pressure liquid level meters ,and antiseptic liquid level gauge .we also made to orders of non-standard liquid level meters to satisfy different customers .those products has been used by many enterprises of all walks of chemical,industries, petroleum ,electricity, food, light, medicine, metallurgy, papermaking etc.. and our products have been certified by quality system ISO9001:2000.

Tianjin U-ideal Instrument Co. are also engaged in flowmeter trade. Such as gas flowmeter and liquid flowmeter with the type of explosion-proof and others.