Stainless steel electromagnetic flowmeter

产品描述：The working principle of electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. When a conductor moves in the magnetic field, the induced electromotive force (E) will be generated at both ends of the conductor perpendicular to the direction of the magnetic field and the direction of motion. This induced electromotive force is detected by two measuring electrodes. The value is proportional to the velocity of flow and the magnetic field magnetic induction intensity, and its value is :E=B.V.D.K....

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详细介绍

Stainless steel electromagnetic flowmeter measurement accuracy is not affected by fluid density, viscosity, temperature, pressure and conductivity changes, sensor induced voltage signal and average flow rate is linear, so the measurement accuracy is high. Stainless steel electromagnetic flowmeter measures open flow parts in the pipe, so there is no additional pressure loss; The sensor has a long life because there are no moving parts in the pipeline. Stainless steel electromagnetic flowmeter because the induced voltage signal is formed in the entire space filled with magnetic field, is the average of the pipe load surface, so the sensor required a shorter straight pipe section, the length of 5 times the pipe diameter. Stainless steel electromagnetic flowmeter sensor part only the lining and electrode contact with the measured liquid, as long as the reasonable choice of electrode and lining material, can be resistant to corrosion and wear.

product features

■ the measurement is not affected by fluid density, viscosity, temperature, pressure and conductivity changes;

■ No pressure loss, low requirement for straight pipe section, unique adaptability for slurry measurement.

■ nominal diameter DN6-DN3000 wide coverage, lining and electrode have a variety of choices, can be applied to a variety of measuring media, with good corrosion resistance and wear resistance;

■ the converter uses programmable frequency low frequency rectangular wave excitation, improve the stability of flow measurement, small power loss;

■ converter uses 32-bit embedded microprocessor, full digital processing, fast operation speed, strong anti-interference ability, reliable measurement, high accuracy, flow measurement range up to 1500:1, according to the actual needs of users to modify the range online;

■ high definition backlight LCD display, Chinese and English menu operation is optional, easy to use, simple operation, easy to learn and understand;

■ with RS485-MODBUS, RS232, Hart and Profibus digital communication signal output (optional);

■ with conductivity measurement function, can distinguish whether the sensor is air pipe, with self-test and self-diagnosis function;

■ SMD device and SMT technology, high circuit reliability;

■ infrared operator operation, 115KHZ communication rate, remote non-contact operation converter all functions (optional);

■ there are three internal gauges can display the positive cumulative amount of reverse cumulative amount and difference cumulative amount respectively, the internal is equipped with power off clock, can record power off time (optional);

■ can be used for the corresponding explosion-proof occasions.

Product parameters

Measuring medium

ewage, tap water, strong acid and alkali, mud, pulp and other conductive liquid

Range

0.1-15m/s

Output signal

4~20mA, pulse/frequency

Accuracy grade

0.5, 1.0

medium temperature

-20～+160℃

Explosion-proof grade

ExdiaⅡ CT6 Gb

Protection grade

IP65, IP67, specially made up to IP68

Standard nominal pass (mm)(special specifications can be customized)

electromagnetic flowmeter (JB/T9248-2015)

Pipeline type four gas lining: DN15-DN2000

Pipe type rubber lining: DN65-DN3000

Pipe type F46 lining: DN4-DN600

Flow direction

positive, negative, net flow

Range ratio

150:1

Repeatability error

+0.2% of the measured value

Lining temperature

conventional rubber :-20~+60C

High temperature silicon gas lining :-20~+150°C

Ptfe lining :-20~+120°C

The lining F46 / PFA: - 20 ~ + 180

Rated working pressure (high pressure can be customized)

DN6～DN50≤4.0MPa

DN65～DN300≤1.6MPa

DN350～DN1000≤1.0MPa

DN1200～DN3000≤0.6MPa

Flow rate range

0.1-15m/s

Conductivity range

≥20μs/cm

Signal output

4～20mA，pulse/frequency

Communication output

RS485-MODBUS、RS232、Hart、Profibus，GPRS

Power supply

220VAC or 24VDC

Length of straight pipe

upstream & GT; 5 dn, downstream & gt; 3DN

Connection mode (other specific)

flange connection is used between flowmeter and piping

Protection grade

IP65, IP67, specially made up to IP68

Ambient temperature

-25～+60℃

Relative humidity

5%～95%

Total power consumption

less than 15W

product application

Widely used in petroleum, chemical, metallurgy, light textile, paper making, environmental protection, food and other industrial departments and municipal management, water conservancy construction, river dredging and other fields of flow measurement

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