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DN2000 Remote Type Flanged End Electromagnetic Flowmeter

Specifications

Model Number :

MLF

Place of Origin :

China

MOQ :

1pc

Price :

Negotiation

Payment Terms :

T/T

Supply Ability :

500pcs per month

Delivery Time :

7-10 working days

Packaging Details :

In Carton or Wooden Box

Product Name :

Electro Magnetic Flow Meter

Pipeline Diameter :

DN15-DN2000

Accuracy :

0.5% or 0.2%

Flange :

GB/ANSI/JIS/BS/Others

Velocity :

0.3~10m/s

Liner Material :

Rubber/PTFE/PU/Hard Rubber/PFA/FEP(F46)

Description

Flanged End Electromagnetic Flow Meter Remote Type

1. Introduction

MLF electromagnetic flowmeter 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. Generally, its conductivity should be greater than 5μS/cm (the conductivity of tap water, raw water is about 100~500μS/cm). it can also be used to measure various media such as acid, alkali, brine, pulp or pulp and other medium. But these medium can not contain a large number of magnetic substances and bubbles.

MLF electromagnetic flowmeter is an instrument to measure liquid fluidity. Widely used in metallurgy, chemical, paper, environmental protection, petroleum, textile, food, urban management, water plants and other industries of flow measurement.

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. Quick Details

MLF electromagnetic flowmeter is explosion-proof design.

Function of low conductivity measurement.

There are nine language options to meet the needs of different customers.

It has the function of self-regulation and self-examination.

Different outputs are optional: Hart,RS485 Profibus,4-20mA, frequency, pulse.

4. Specification

MLF Type	Divided Type	Integrated Type	Explosive Proof Integrated Type	Battery Powered Type	Heat Energy Type
Accuracy	±0.2% or ±0.5%
Pipeline Diameter	DN10-DN2000		DN10-DN600		DN25-DN2000
Flange	GB, ANSI, JIS, BS, Others
Pressure	DN10-DN600 1.0 1.6 2.5 4.0MPa
	DN700-DN2000 0.6 1.0 1.6MPa
Liner Material	CR, PTFE, PU, Hard Rubber, PFA, FEP(F46)
Conductivity	≥5µs/cm(Please contact us if it is less than 5µs/cm)
Electrode	316L SS, Hb, Ta, Ti, Hc, Tungsten Carbide, Others
Protection Class	IP65, IP66, IP67, IP68
Medium Temperature	-25~180℃ (Please refer to liner material)	-25~80℃(Please refer to liner material)			-25~180℃ (Please refer to liner material)
Ambient Temperature for Accuracy Influence	<±0.1%/10℃ or <±0.25%/10℃ at the ambient temperature of -25~60℃
Repetability	≤±0.1% or ±0.25%
Analog Output Error	≤±0.02mA
Velocity	0.3~10m/s
Electrical connection	M20x1.5 Seal Cartridge, GB1/2, NPT1/2
Output	4-20mA, Pulse, RS485, Hart, Profibus

5. Selection of Liner Material

Liner Material

Main Performance

Application

PTFE

1 It has the most stable chemical properties in plastics, resistant to boiling hydrogen chloride and sulfuric acid, nitric acid, aqua regia, strong alkali and various organic solvents, but not resistant to chlorine trifluoride, high temperature nitrogen trifluoride, liquid fluorine, and liquid oxygen And ozone corrosion.

2 Low wear resistance.

3 Low negative pressure resistance.

1. -25~140℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare medium

Oil proof, solvent resistance, oxidatite resistance and the resistance to the erosion of common medium like acid, alkali, salt, etc.

1. ＜80℃

2. Be able to measure sewage and mud

1. Very good abrasive resistance, flexibility.

2. Low acid and alkali resistance.

1. ＜65℃

2. Neutral strong abrasion resistance medium

Hard Rubber

1. Good resistance to room temperature, hydrochloric acid, acetic acid, oxalic acid, ammonia, phosphoric acid and 50% sulfuric acid, sodium hydroxide, potassium hydroxide

2. Avoid strong oxidants

1. ＜80℃

2. General acid, alkali, salt solution

PFA

1. Can be used for most corrosive medium like acides, alkalis, and strong oxidant.

2. High material strength, resistance to aging, better than PTFE, EFP in high temperature

3. Injection molding for higher negative pressure

1. 40~180℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare mdium

FEP(F46)

1. Hydrophobicity and non-viscous

2. Corrosion resistance is inferior to PFA

3. Negative pressure

1. 40~180℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare mdium

6. Dimensional Sketches

a. Dimension of Converter