Smart Electromagnetic Flow MeterDelivery term:The date of payment from buyers deliver within days
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The electromagnetic flowmeter is composed of two parts by electromagnetic flow sensor and electromagnetic flow converter.The operation of an electromagnetic flowmeter is based on Faraday law of electromagnetic induction.The mainly parts of the sensor are: measuring tube,electrode poles,excitation coil,iron core,yoke and housing. The measuring tube of the sensor is a short alloy tube whose diameter is D, the inner surface of it has an insulating liner.Two electrodes are fixed in the measuring tube along with the diameter direction of it and they usually flush with the inner surface liner.When excitation coil pulsed by two-way square wave,there generates a working magnetic field with a flux density B in the vertical direction of the measurement axis.In the meantime,if some electrical conductivity liquid flows at an average velocity V through the measuring tube ,cuts lines of the magnetic field,there generates induced electromotive force E.Electromotive force E is directly proportional to the product of flux density B、measuring tube diameter D and average velocity V,that's: E BVD. Electromotive force E(flow signal) is measured by the electrodes and transmitted to transducer through cable.After the transducer handles the flow signal by magnifying it, the flow and total amount can be displayed,also will output pulse and analog current etc.
Nominal Pressure: 0.6~4.0MPa
Accuracy: ±0.5% of the value displayed, ±0.3% or ±0.2% are optional
Liner material:Teflon, PFA, F46, Neoprene, Polyurethane.
Electrode Type: General type, scraper type and replaceable type.
Electrode material:SS316, Hastelloy B, Hastelloy C, Titanium, Tantalum, Platinum-iridium, Stainless steel covered with tungsten.
Technical Performance Parameters Diameter Nominal DN10 ~ DN1000 Nominal Pressure 0.6~4.0MPa(special pressure can be made to) Accuracy ±0.5 %, ±2mm/s (flowrate < 1m/s) Liner material PFA,F46,Neoprene,PTFE, FEP Electrode material Stainless steel SUS316, Hastelloy C, Titanium, Tantalum Platinum-iridium Medium Temperature Integral type -10°C~+80°C Split type -25 – 180℃ Ambient Temperature -10℃~60℃ Medium Electrical conductivity water 20μS/cm other medium 5μS/cm Structure type Integral type, split type Protection Class IP65,IP68(optional) Product Standard JB/T 9248-1999 Electormagnetic Flowmeter Lining material Main Performance Applications Teflon 1.The most steady material in plastics which is resistibal to boiling hydrochloric
acid,vitriolandqua fortis as well as strong alkali and organic impregnates.
2.Not be perfect in abrasion resistance.
Strong corrosive mediums such
as strong acid and alkali
PFA Having the same abrasion resistance with PTFE.
Having strong ability of load pressure resistance.
Applicable in state of load pressure F46 1.Have the same abrasion resistance with PTFE.
2.Resistable for low abrasion.
3.Having strong resistance to load pressure.
1.The same as PTFE.2.Applicable
in mediums of low abrasion.
Neoprene 1.Be of good elasticity,retractility and abrasion resistance.
2.Be resistant to low aicd,alkali and salt but not for oxidation mediums.