XFE series of electromagnetic flowmeter principle Profile 

 The XFE intelligent electromagnetic flowmeter measurement principle is based on Faraday's law of electromagnetic induction: conductive liquid in a magnetic field cutting the magnetic lines of force movement, the EMF generated in the conductor, the EMF E is: E = KBVD type: 
 K = -------- instrument constant 
 B = -------- magnetic induction 
 V = -------- measuring the average velocity within the pipe cross-section 
 D = -------- measure the inside diameter of the pipe cross-section 
 Thus the above equation, when the structure of the measuring tube, the magnetic flux density is constant, the volume flow rate is proportional to the EMF. Measure the induced voltage can flow into the pipe volume flow. The induced voltage signal of one or more direct contact with the electromagnetic and liquid detection, and sent through the cable converter through intelligent processing, and then the LCD display or converted into standard signals 4-20mA output of frequency signal Hartx of protocol communication . 
 Measuring the flow of conductive liquid velocity V flows through the magnetic field perpendicular to the flow direction of the flow of conductive liquid in the measuring electrode induces a voltage proportional to the average velocity, which can be drawn to the volume flow through the pipeline 


















 As: Q = 03785DE/KB 

 Where 
 Q -------- volume flow 
 E -------- induced voltage 

 Nominal diameter 
 Rated pressure level 

 DN25-DN150 
 4.0MPa 

 Of DN200-of DN1000 
 1.0MPa 

 DN1100-DN2000 
 0.6MPa 

 DN2200-DN3200 
 0.25Mpa 


 The XFE Series electromagnetic flowmeter technology parameters 


 ◆ Measurement of fluid: ± 0.5% 
 ◆ the level of accuracy: 0.25% 
 ◆ repeatability: 0.15%, 0.25% 
 ◆ fluid temperature: -25 ℃ ~ 180 ℃ 
 ◆ Pressure Rating: (see right) 
 ◆ medium velocity range: 0.3 ~ 12m / s, 
 ◆ Conductivity: ≧ 5uS/cm 
 ◆ electrode materials: 316 stainless steel, Hastelloy B, Hastelloy C, tantalum, titanium, platinum, tungsten carbide, nickel, etc. 
 ◆ Number of electrodes: 4 electrodes the (≦ DN500), six electrodes (≦ DN600) 
 ◆ lining materials: the fluorine small rubber the CR PTFE F4 (PTFE), FEP propylene with F46 (FEP), polyurethane rubber, PU and other 
 Table body flange material: 304 stainless steel, 20 # carbon steel, other materials (special order) 
 ◆ Installation form: (≦ DN300), clip-on flange connection type (DN3200) 
 ◆ Protection grade: IP65, IP68 
 ◆ converter power supply: 220 ± 20%, 50HZ and 24VDC power supply for selection 
 ◆ Signal output: standard output signal pulse output, choice of output 4-20mA, HART Communication protocol, MODERBUS agreement 
 ◆ structural forms: one body and sub-size (with standard 5m cable) 
 ◆ power: 065W 

 ◆ working environment: environmental