Electromagnetic Water Meter

E-mag series electromagnetic flowmeter is used for measuring the volumetric flowrate of conductive liquid and serous fluid in the closed pipe, and is applicable to chemicals, power, mining and metallurgy, petroleum, water supply and drain, paper making, medicine, foods and so on. a) The measurement is not affected by the change in density, viscosity, temperature, pressure and conductivity of the fluid; b) There is no part which may obstruct the flow in the measuring tube. No pressure loss, low requirement for the straight pipe; c) Inside nominal diameter is DN3-DN3000. Multiple choices are available for the lining of sensor and electrode material; d) The converter adopts new excitation mode, low power consumption, stable zero point, high accuracy. Measurement range reaches 1500: 1; e) The converter could be integrated or separated from the sensor; f) The flowmeter has bidirectional measuring system and is installed with three integrators: forward total volume, reverse total volume and total difference; it can display forward flow and reverse flow volume in varied outputs: current, pulse, digital communication, HART; g) The converter has self-inspection and self-diagnosis function; h) Explosion-proof type can be used in explosion-proof sites. Technical Parameters Main Technical Parameters Inside Nominal Diameter:DN3~DN3000 Highest Flow Velocity:15m/s Precision DN15~ DN600: ±0.3% of the indicating value (flow velocity ≥1m/s); ±3mm/s (flow velocity <1m/s) DN3~DN10/DN700~DN3000 ±0.5% of the indicating value (flow velocity ≥0.8m/s);±4mm/s (flow velocity <0.8m/s) Liquid Conductivity: ≥5us/cm Nominal Pressure: 4.0MPa: DN3- DN700; 1.6MPa:DN15- DN1600; 1.0MPa :DN15- DN2200; 0.6MPa : DN700- DN3000; 6.3MPa: DN15- DN500 ; 10 MPa:For special orders Lining Material PTFE, Neoprene ,PFA,F46,PU Electrode Material: Stainless Steel 316L, Hastelloy C, Hastelloy B, Titanium, Tantalum, Platinum-iridium Alloy, Stainless Steel Coated with Tungsten Carbide Housing Protection: DN15- DN3000, Separated Type Sensor with Rubber or Polyurethane Lining IP65 or IP68; Other Sensor; Integrated Flowmeter and Separated Flowmeter IP65 Explosion Proof Levels: Normal,Flameproof(EIICT4-CT6)\Intrinsically Safety(ExiaII CT4) Power Supply: AC 85~265V,45~400Hz DC19- 40V; Lithium Battery Powered Operation Buttons: Push Button Type;Magnetic Button Type(Explosion-proof Sites) Output Signal: Current, Pulse, Alarm Digital Communication: RS232;RS485;HART;ProfibusDP Cable Interface: M20*1.5 Electrical Interface Sensor Connection: Flange; Flange Standard GB;HG;JB;ASME;BS;DIN;JIS Model Selection: Selection Of Lining:Polytetrafluoroethylene (F4):1. It is the plastic with most stable chemical properties, and is resistant to boiled hydrochloric acid, sulphuric acid, nitric acid and aqua regia, and also strong alkali and varied organic solvents. 2. Wear resistant performance is lower than polyurethane rubber. 3. Negative pressure resistance is lower than poly neoprene. Applicable Range: 1.Strong corrosive medium such as concentrated acid and alkali. 2.Sanitary medium. Fluorinated Ethylene Propylene (F46):Chemical performance is similar as F4, the negative pressure resistance is better than F4, the price is relatively high. Applicable range: same as F4 Additional Mesh PFA:Chemical performance is similar as F4, good negative pressure resistance, the price is high. Applicable range:Water, sewage, weak wearable mud ore pulp. Poly Neoprene :1. With very good elasticity, high breaking tenacity, good wear resistant performance. 2. Resistant to common low concentration acid and alkali and salt, not resistant to oxidizing medium. Applicable range:Water, sewage, weak wearable mud ore pulp. Polyurethane Rubber:1. Extremely strong wear resistant performance. 2. The corrosion resistant performance is relatively low. Applicable range: Neutral and strong wearable ore pulp, coal pulp and mud. Selection of electrode Material Of Electrode Corrosion and wear resistant performanceCorrosion and wear resistant performance Stainless Steel 316L It is used for weak corrosive medium such as industrial water, domestic water and sewage, applicable to petroleum, chemicals, iron and steel industries and municipal and environmental protection fields. Hastelloy B Resistant to non-chlorinated acid such as sulphuric acid, phosphoric acid, hydrofluoric acid, organic acid and alkali, non oxidizing salt solution. Hastelloy C Resistant to non-oxidizing acid and mixing medium such as nitric acid, mixing acid, or chromic acid and sulphuric acid, resistant to oxidizing salt such as Fe+++, Cu++ or other oxidizers such as hypochlorite solution and sea water higher than the normal temperature. Titanium Resistant to sea water, varied chloride and hypochlorite, oxidizing acid (includes fuming sulphuric acid), organic acid and alkali. Not resistant to relatively pure reducing acid (such as sulphuric acid, hydrochloric acid), but if the acid contains oxidizer (such as nitric acid, Fe+++, Cu++), the corrosion drops greatly. Tantalum With excellent corrosion resistance, similar as glass. Except hydrofluoric acid, fuming sulphuric acid and alkali, it is nearly resistant to all chemical medium (includes hydrochloric acid at boiling point, nitric acid and <150℃ sulphuric acid). It is not resistant to alkali. Platinum-iridium Alloy It is nearly resistant to all chemical medium, but it is not applicable to aqua regia and ammonium salt. Stainless Steel Is Coated With Tungsten Carbide It is used for without corrosivity and strong wearable medium.
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