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electromagnetic flow meter advantages and disadvantages

  • Liner Material:PTFE,PFA,FEP,F46,neoprene,rubber
  • Size:DN3-3000
  • Medium Temperature:-10℃~160℃
  • Measuring Tube material:SS 304
  • Accuracy:0.5% or 0.2% of the reading value +0.3 m/s
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Principle

Mag meter works based on Faraday's law, and measure conductive medium with conductivity more than 5 μs/cm and flow range from 0.2 to 15 m/s.


Application

According customers requirements,we can provide various electromagnetic flowmeters widely used following industries,

      • Chemical
      • Medicine
      • Beverage
      • Iron and steel
      • Water supply
      • Electricpower
      • Water treatment

electromagnetic flow meter Advantages:
 
      • No moving partes,no pressure loss
      • Accuracy:±0.2% of the measured value + 0.3m/s
      • High accuracy for low flor rate and can measure duplex flow
      • Double frequency excitation,stable zero point 
      • Built-in ground electrode,no need grounding ring

 

          Installation Notice

Installed at the lowest point and vertical upward direction              Install exhaust valve at the downstreat of flow meter

Don’t install at the highest point and vertical downward diection          when drop is more than 5m



           
Installed at the lowest point when used in open drain pipe        Need 10D of upstreat and 5D of downstreat



     


Dont’ install it at the entrance of pump, install it at the           Installed at the rising direction
exit of pump



 


 
certificate






 
Sanitary Magnetic Flow Meter Specification

Size

DN3~DN200mm

Accuracy

±0.5% of reading,velocity >0.3 m/s  

Conductivity

Normal liquid >5 μS/cm,DI water >20 μS/cm      

Velocity

0.1 ~ 15 m/s

Structure type

Integrated, Seperated

Liner Material

PFA    DN3-DN800   (standard)    -20℃ ~ +120 ℃     （-68℉~ 248℉）
PTFE   DN15-DN1600    -20℃ ~ +120 ℃     （-68℉~ 248℉）
F46     DN25-DN1800     -20℃ ~ +120 ℃    （-68℉~ 248℉）

Electrode Material

SS 316L (standard),Hastelloy C,Hastelloy B

Body Material

Stainless Steel 304 (standard),stainless steel 316L

Process Pressure

0.6 MPa, 1.6 MPa

Frequency Output     

1~5000 Hz

Signal Output

4~20 mA,pulse

Communication

RS485/Modbus,Hart over 4~20 mA, Hart,Profitbus

Power Supply

AC85~250V, DC20V~36V       

Ambient Temperature

-25 ~ +60℃  /-77 ~ 140℉ Sensor      -10~ +60℃ /-50~140℉ Convertor

Liquid Temperature

Integrated: 70℃/ 158℉ max    Seperated: 120℃/ 248℉max

Protection Grade

IP65 Integrated,  IP68 Seperated

Connection

Thread,Tri-clamp

Exciting Current    

125mA, 187mA, 250mA, 500mA

Exciting Frequency   

25Hz, 3.125Hz, 2.5Hz, 2Hz

Straight Pipe     

Inlet Path ≥ 10D,  Outlet Path ≥ 5D

Certificates        

CE 6022120716, ISO9001:2008, CQC1500155689521



Magnetic Flow Meter Selection Table



Performance of Electrodes

Electrode Material

Applications

Stainless Steel 316L

Applicable in water,sewage and corrosive mediums.Widely used in industries of petrol,chemistry,carbamide,etc

Hastelloy B (HB)

Having strong resistance to hydrochloric acid of any consistance which  is below bioling piont.
Also resistable against vitriol,phosphate,hydrofluoricacid,organic acid etc which are oxidable acid,alkali and non-oxidable salt.

Hastelloy C (HC)

Be resistant to oxidable acid such as nitric acid,mixed acid,as well as oxidable salt such as Fe+++,Cu++aStnd sea water

Titanium

Applicable in seawater,and kinds of chloride,hypochlorite salt,oxidable acid (including fuming nitric acid),organic acid,alkali etc.
Not resistant to a pure reducing acid(such as sulphuric acid,hydrochloric acid  corrosion.
But if acid contains antioxidant is greatly reduce corrosion.

Tantalum

Having strong resistance to corrosive mediums that is similar with glass
Almost is applicable to all chemical mediums.
Except for hydrofluoric acid,oleum and alkali.

Platinum-iridium

Almost be applicable in all chemical mediums except for ammonium salt.

Stainless Steel Covered
Tungsten Carbide

Applicable in mediums of no corrosive and low abrasion.

 

 

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