0.3m/s DN15 Inline Electromagnetic Flow Meter

Inline Electromagnetic Flow Meter with Good Price

1. Introduction

The MLF electromagnetic flow meter is based on Faraday's law of electromagnetic induction and consists of sensors and converters. Used to measure the conductivity of a liquid or solid. In general, its conductivity should be greater than 5μs/cm (tap water, raw water conductivity of about 100 to 500μs/cm), can also be used to measure acids, alkali, brine, pulp or pulp and other media. However, these media must not contain large amounts of magnetic substances and bubbles.

MLF electromagnetic flow meter is an instrument for measuring liquid flow. Widely used in metallurgy, chemical, paper, environmental protection, petroleum, textiles, food, urban management, water plants and other industries flow metering.

2.Working Principle

The principle of the sensor is based on Faraday’s law of electromagnetic induction.

It is installed a pair of detection electrodes on the pipe wall,where the measurement pipe axis and magnetic field lines are vertical. When the conductive liquid cuts magnetic field lines and produces induced electromagnetic force.Which can be measured by the two electrodes on the

meter pipe.The result can be calculated by formula: Induced electromotive force,(flow signal) E=KBDV

E——Induced electromotive force,V；

K——meter constant；

B——Magnetic flux density,T；

D——Internal diameter of measuring pipe,m；

V——Average velocity of pipe section,m/s.

MLF Series Electromagnetic Flow Meter

Assume the volume of liquid as qv(m3/s),qv=πD2V/4),so in the formula E=(4kB/πD)qv=kqv,

K is meter constant,K=4kB/πD.

Actually, the electromagnetic flow meter consists of two parts, transmitter and sensor, the measuring electrodes inspect the electromotive force, and transmit to the converter, the converter provides excitation current.

E is usually called a flow signal, after processing the flow signal by converter, output 4~20 mA/pulse(or frequency) signal which is proportional to the flow rate, then the flow rate recording,adjusting can be achieved.

3. Features

• MLF electromagnetic Flowmeter is explosion-proof design.
• Function of low conductivity measurement.
• There are 9 language options to meet the needs of different customers.
• Have self-regulation function and self-examination.
• Different outputs are optional: hart, RS485 Profibus ,4-20 mA, frequency, pulse.

4. Selection of Liner Material

5. Selection of Electrode Materials

6. Dimensional Sketches

a. Dimension of Converter

Divided Type

Integrated Type

Battery Powered Type

b. Dimension of Sensor

7. Configuration

8.Instrument Inspection and Maintenance

Electromagnetic flow meters have a self-diagnosis function. In addition to power and hardware circuit failures, the system also alerts to other faults in general use. This information is prompted in the lower right corner of the screen.

1 Maintenance and repair

a) The sensor installation site should comply with section IV requirements, please keep the housing clean;

b) The transmitter should be placed in a clean, ventilated and dry place;

c) The instrument needs to be checked every two years and for high-precision users, the instrument needs to be submitted for review.

2 Transport and storage

a) The instrument must be packed before transport and handled with care.

b) Storage sites must be dry and ventilated to avoid the erosion of corrosive gases, and the ambient temperature should not be too low or too high;

c) Storage time should preferably not exceed three years.

3 out-of-the-box inspection

a) The package cannot be opened with a heavy hammer and care should be taken not to damage the instrument

b) Check the contents carefully according to the packing slip.

Melan Measurement & Control Instruments is located in Shanghai City. It is a high-tech manufacturer specialized in the design, development, manufacturing and sale of measurement and control instruments.

Our products are widely used in various fields, including electricity, chemical industry, metallurgy, brewing, oil and gas, textile, water conservancy, environmential protection, etc.

We own independent-courtyard modemized manufacturing workshops and an open office building. Melan has accumlated production and management experience in instruments from European and American and domestic famous companies.

We own first-class talent team, and all the products have reached advanced level at home and abroad. We provide our customers with complete and professional test control solutions and high-tech and high-quality products.

Melan is your reliable friend and partner. We are willing to try our best as dedication and perfection as motivation.

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