JY-LDE intelligent electromagnetic flowmeter JY-LDE intelligent electromagnetic flowmeter measurements in closed conduits for conducting liquid and slurry volume flow, such as clean water, sewage, various chemical salt solution, slurry, pulp, pulp and food products The liquids. The measuring principle JY-LDE intelligent measuring principle of electromagnetic flowmeter is based on Faraday's law of induction conductive liquid cutting magnetic field lines, generating EMF conductor in a magnetic field, the EMF E is: E = KBVD formula: K- ---- instrument constant when the magnetic flux density B ----- V ----- measuring the inner diameter D ----- measuring flow average velocity measurement pipe section of the duct cross section within the conductive liquid flows at a speed V magnetic field perpendicular to the flow direction, the flow of conductive liquid induces a voltage proportional to the average velocity, the induced voltage signal detection electrode by two or more direct contact with the liquid, and sent through the cable converter Through intelligent processing, and then converted into a standard LCD display or 4 ~ 20mA signal and 01kHz output. Selection of the proper selection of the instrument is very important instrumentation work, the data indicate that the instrument has practical applications in two-thirds of the fault is wrong or incorrect selection of instruments caused by the installation, please pay special attention. ★ collect data ① ② maximum flow measured fluid composition, the maximum working pressure minimum flow ③ ④ maximum temperature, minimum temperature range Q electromagnetic flowmeter flow should be greater than the maximum expected value, and the normal flow value slightly larger than the full scale flow meter 50% of the scale is appropriate. ★ maximum flow and minimum flow must comply with the following table the number of inner diameter mm 10 15 20 25 32 40 50 65 Qmin (m3 / h) 0.0283 0.0636 0.12 0.176 0.29 0.452 0.7 1.19 Qmax (m3 / h) 4.24 9.54 16.96 26.5 43.42 67.85 106.0 the inner diameter of 179.0 mm 80 100 125 150 200 250 300 350 Qmin (m3 / h) 1.8 2.82 4.41 6.36 11.3 17.6 25.4 34.6 Qmax (m3 / h) 271.0 424.0 662.0 954.0 1690 2650 3810 5190 inside diameter mm 400 450 500 550 600 700 800 900 Qmin (m3 / h) 45.2 57.2 77.6 85.5 101.0 138.0 180.0 229.0 Qmax (m3 / h) 6780 8570 10600 12800 15200 20700 27100 34300 inner diameter mm 1000 1100 1200 1400 1600 1800 2000 2200 Qmin (m3 / h) 282.0 342.0 407.0 554.1 732.7 916.0 1131.0 1368.4 Qmax (m3 / h 42400 51300 61000 86121 108566 137404 169635 205258