DN25 4.0MPa RS485 Electromagnetic Flow Transmitter

Model Number:MLF
Minimum Order Quantity:1pc
Delivery Time:7-10 working days
Payment Terms:T/T
Place of Origin:China
Price:Negotiation
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Location: Shanghai Shanghai China
Address: No.21, Lane 697, Guangfulin Road, Songjiang District, Shanghai, China
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Product Details

Electromagnetic Flow Meter Used for DM Water Plant with Low Cost​


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. Features
The MLF electromagnetic flow meter is for explosive proof design.
It has the function of low conductivity measurement.
It has Chinese, English, Korean, Polish, Turkish, French and Portuguese languages languages for option to satisfy different customers’ requirements.
It has the function of self-adjustment and self-checking.
A variety of outputs are optional:Hart, RS485, Profibus, 4-20mA, Frequency, Pulse.


3. Application:

MLF electromagnetic flow meter is a kind of instrument,used for measuring the flow conductivity liquid, which is widely used in flow measuring of Metallurgy, Chemical industry, Paper industry, Environmental protection, Oil industry, Textile industry, Food industry and City administration,Water works,etc.


4. Specification

MLF TypeDivided TypeIntegrated TypeExplosive Proof Integrated TypeBattery Powered TypeHeat Energy Type
Accuracy±0.2% or ±0.5%
Pipeline DiameterDN10-DN2000DN10-DN600DN25-DN2000
FlangeGB, ANSI, JIS, BS, Others
PressureDN10-DN600 1.0 1.6 2.5 4.0MPa
DN700-DN2000 0.6 1.0 1.6MPa
Liner MaterialCR, PTFE, PU, Hard Rubber, PFA, FEP(F46)
Conductivity≥5µs/cm(Please contact us if it is less than 5µs/cm)
Electrode316L SS, Hb, Ta, Ti, Hc, Tungsten Carbide, Others
Protection ClassIP65, 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
Velocity0.3~10m/s
Electrical connectionM20x1.5 Seal Cartridge, GB1/2, NPT1/2
Output4-20mA, Pulse, RS485, Hart, Profibus

5. Selection of Liner Material

Liner MaterialMain PerformanceApplication
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

CROil 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

PU

1. Very good abrasive resistance, flexibility.

2. Low acid and alkali resistance.

1. <65℃

2. Neutral strong abrasion resistance medium

Hard Rubber

1 Resistance to room temperature, hydrochloric acid, acetic acid, oxalic acid, ammonia, phosphoric acid and 50% sulfuric acid, sodium hydroxide and 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

Divided Type



Integrated Type


Battery Powered Type


b. Dimension of Sensor



Pipeline DiameterDimension
LWH
1516095130
20160105137
25160115150
32160135160
40200145175
50200160185
65200180205
80200195215
100250215235
125250245275
150300280300
200350335355
250400400405
300500455460
350500515520
400600575580
450600635630
500600710685
600600835795
700700905910
80080010201030
90090011201120
1000100012451250
1200120014651470

7. Configuration

MLF Series Electromagnetic Flow Meter Configuration
ModelMLF
Sensor InstallationSFlange Type Sensor
CInsertion Type Sensor
OOthers
Pipeline Diameter1010mm
1515mm
2020mm
......
20002000mm
Electrode InstallationFStandard Fixed Type
Electrode MaterialA316L SS
BHb
CTa
DTi
EHc
FTungsten Carbide
GOthers
Liner MaterialRRubber
PPTFE
OOthers
Pipe MaterialB304 SS (Standard)
C316 SS
Flange TypeGGB (Standard)
AANSI
JJIS
BBS
OOthers
Flange MaterialA304 SS
B316 SS
C#20 Carbon Steel (Standard)
Cover MaterialD304 SS
E316 SS
FCarbon Steel+ Epoxy Metallic Paint (Standard)
Matching Flange0Without Matching Flange (Standard)
1With Matching Flange
Ground Ring0Without Ground Ring (Standard)
1With Ground Ring
Rated Pressure101.0MPa
161.6MPa
252.5MPa
404.0MPa
Working TemperatureE≤60℃
H≤180℃(Divided Type)
TypeIIntegrated Type
DDivided Type
OutputPPulse
A4-20mA
GRS485
HHart
QOthers
Power Supply0220VAC
124VDC
2Battery-powered
Protection Class0IP65 (Integrated/Divided Type)
1IP67 (Divided Type)
2IP68 (Divided Type)
Other FeaturesRHeat Energy Function
PWith PT1000
BWithout PT1000
Explosion Proof0None
EXExplosive Proof

7. Instrument Testing & 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.


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DN25 4.0MPa RS485 Electromagnetic Flow Transmitter

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