Electromagnetic Flow Meter

An electromagnetic flow meter is a device used to measure the flow rate of a conductive fluid in a pipe or conduit. The basic principle behind this technology is Faraday's law of electromagnetic induction, which states that a voltage will be induced in a conductor moving through a magnetic field.

In an electromagnetic flow meter, a magnetic field is created by energizing the coils in the meter's housing. As the conductive fluid flows through the meter, it generates a voltage proportional to its velocity. This voltage is detected by electrodes in contact with the fluid and is used to calculate the flow rate.

One advantage of electromagnetic flow meters is that they can be used to measure the flow of almost any conductive fluid, including corrosive and abrasive fluids, as long as the fluids conductivity is high enough. They are also highly accurate and can measure flow rates over a wide range of velocities. However, they require a conductive fluid and may not work well with non-conductive fluids such as oils or gases.

Electromagnetic flow meters are commonly used in industrial and municipal applications, including water treatment plants, chemical processing plants, and oil and gas pipelines. They are also used in various industries to measure the flow rate of liquids in a closed system, providing accurate and reliable flow measurement data for process control and optimization.

Ans: An electromagnetic flow meter works based on Faraday's law of electromagnetic induction. When a conductive fluid flows through a magnetic field created by coils in the meter's housing, it generates a voltage proportional to its velocity. This voltage is detected by electrodes in contact with the fluid and is used to calculate the flow rate.

Ans: One of the main advantages of electromagnetic flow meters is that they can measure the flow of almost any conductive fluid, including corrosive and abrasive fluids. They are also highly accurate and can measure flow rates over a wide range of velocities. They have no moving parts, so they are low-maintenance and can last a long time.

Ans: Electromagnetic flow meters require a conductive fluid and may not work well with non-conductive fluids such as oils or gases. They also require a straight pipe run upstream and downstream of the meter to ensure accurate measurement. They are typically more expensive than other types of flow meters.

Application

• Water Supply Networks, Chemical, Petrochemical and Process Industries (Only Conductive Liquids)
• Pharmaceutical Industries / Paper and pulp Industries / Fertilizer Industries / Beverage Industries
• Waste - Water management , Sugar, Food, Drug and Beverages Industries
• Effluent Treatment Plants, Aluminum, Steel, Mining and Dredging Industries

Specification

• Suitable For Pipe Sizes : Dn 10 To Dn 2000
• Media Conductivity (Min) : 10 Us / Cm (Consult Factory For 5 Us/Cm)
• Media Pressure : Pn 40 Up To Dn 80, Pn 16 Upto Dn 200 & Pn 10 Up To Dn 600
• Media Temperature (Ptfe) : 0"-180c With Remote Transmitter 0"-120c With Integral Transmitter 0"-90c Max For Other Liners
• Material : Ss 316 (Non - Magnetic)
• Liner : Ptfe / Neoprene / Polyurethane
• Electrode : Ss / Hostelloy C / Ta / Ti / Pl
• End Connection / Flanges : Carbon Steel / Ss 304 / Ss 316 / Ss 316l
• Coil Housing : Carbon Steel / Ss, Epoxy Painted
• Transmitter : Cast Aluminum (Lm6), Epoxy Painted
• Power Supply : 110 / 240 V Ac + 15 % 50 Hz
• Power Consumption : 20 Va
• Analog Output : 4-20 Ma / Dc / 0-20 Ma Dc
• Communication Port (Optional) : Rs -23 / Rs - 485 Modbus Rtu Protocol
• Response Time : 5 Second
• Flow Velocity Range : 0.3 To 10 M/S
• Ingresss Protection : Ip - 65 (Ip 68 On Request)
• Led Display : 4 Digit Indication For Flow Rate And 8 Digit Indication For Totaliser Programming From Keyboard For Engineering Unit
• Accuracy : 0.5 % Of Measured Value (Calibrated) A Eference Conditions
• Accuracy : 2 % Of Span
• For Flow Between 0 To 100 % : Refer Error Diagram
• Reference Conditions
• Power Supply : Nominal
• Ambient Temperature : 25 + 2c
• Load Resistance : 500
• Repeatability : + 0.2% Of Span
• Effect Of Ambient Temperature : Less Then 0.2% Per 10c
• Effect Of Power Supply : Less Then 0.1% Per
• 10% Voltage Variation
• Effect Of Load Resistance Less Than 0.1% Of Span