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1、 General De scriptionZJK series magneto-electric intelligent flow-meter (abbreviated for a flow-meter) is a new generation of vortex-shedding flow-meter developed with the technique of magneto-electric digital signal testing, it has the advantages of high vibration resistance、high sensitivity and low power. It can be widely used for vortex-shedding flow measurement in oil、chemical、metallurgy、brewing、printing and dyeing、medical、food environment protection and water supply and drainage industries.The flow-meter is designed and manufactured according to the technical China national standard of anti-explosion electrical products GB3836.1~3836.2. safe application is guaranteed in hazardous locations of explosive gases. The anti-explosion grade is Exd II BT4.2、 Fundamental Characteristicsa) Its designed with dual power supply, it is internally equipped with a 3.6V lithium battery and externally equipped with DC24V power supply, the power of these two kinds can be supplied at the same time.b) It is designed with intelligent integration with a powerful, function, field display and convenient for users′ reading and for easy modification of parameters.c) It is for overall signal output with standard two-wire system of 4~20mA output current and for impulse output and RS-485conmmunication (added based on actual needs).d) It has a good ability of anti-libration and anti-interference.e) The transducer is made with stainless steel for anticorrosion and it is long usage life without internal movable parts.f) It is low lower-limit flow, with wide measurement range and high measuring precision.3、 Main Performance Indexes Precision Grades: 1.5 grades Ratio of Measuring Range : 25:1；20:1 Nominal Pressure Grades : 4、16 、25、32( MPa) Operating Voltage: (inside）DC3.0V～3.6V (outside) DC+18V~+24V Signal Output : signal is delivered when outside power supply is neededA、Output of Standard Two-wire Current Signal ：4～20mA, the maximum load is 550Ω±0.5% for DC+24V power supplyB、Pulse Signal Output :Range of Flow (see table one)Table One ： Nominal Size （mm) 15 25 50 Lower Limit Flow Rate (m3/h) 0.25 0.48 1.2 Upper Limit Flow Rate (m3/h) 5 12 30
