FLOW-38 magnetic flow meter is used to measure any conductive liquid (20 μS/cm or more) for industrial applications.
Electromagnetic flow meter, also known as magnetic flow meter or mag meter does not have any moving parts. Magnetic flow meters do not create any pressure drops in the system and are suitable for all conductive or water-based liquids. Mag meters are cost-effective, reliable, bi-directional, and deliver highly accurate volumetric flow measurement.
Magnetic flowmeters operate based on Faraday’s Law of Electromagnetic Induction. This principle states that a voltage is induced when a conductor moves through a magnetic field. In the case of a magnetic flowmeter, the flowing liquid acts as the conductor. Magnetic flowmeters work by creating a magnetic field across the flow tube using magnetic coils. As conductive liquid flows through this magnetic field, it cuts across the magnetic lines of force, which induces a voltage across the electrodes. The induced voltage is directly proportional to the fluid’s velocity, meaning the faster the flow, the higher the voltage generated. This voltage is then captured by the electrodes and sent to a transmitter, where it is processed into a flow rate reading, which can be displayed in units such as liters per second or gallons per minute. Learn more here.
› Magnetic Field Coils: These coils generate a magnetic field perpendicular to the direction of flow.
› Electrodes: Located on the walls of the flow tube, these electrodes measure the voltage generated by the liquid as it flows through the magnetic field.
› Flow Tube: The non-magnetic, non-conductive tube through which the liquid flows.
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The FLOW-38 electromagnetic flow meter is designed for a wide range of fluid measurements in various industries such as water and wastewater, agriculture or irrigation systems, food processing (dairies, breweries, etc.), the paper industry, power engineering, and mining. Because the electromagnetic flow meter design does not leave any protruding wetted parts or obstructions in the pipe, it can be used for an array of applications, from clean and sanitary liquids to slurries and highly abrasive or corrosive fluids.
The meter’s transmitter is offered in three versions. The first is the standard design (field display head), the advantage of which is primarily its high IP rating (IP67) or rotatability of up to 350° that offers maximum convenience while taking reading off the screen in the field. The standard design can be made either in compact (meter-mounted) or separated versions (remote or wall mounted). The second type of design is the DIN rail design that offers the possibility of mounting the display on all standard DIN rails in the market. Lastly, the panel design allows the users to mount the display remotely in an electrical panel inside a control room.
The flow meter offers a wide range of outputs and communications for connecting to a SCADA or various other control systems. There are two pulse outputs for the customer (400 Hz max.) with the optional setting to flow switch/state/direction, 4÷20 mA current output or RS485 communication (M-BUS/Mod-Bus protocols). Data can be stored in micro SD card also in datalogger mode.
Users have the flexibility to choose from a wide range of liner materials to match their applications. These options include hard and soft rubber, rubber with certificate for drinking water, PTFE, PFA or E-CTFE. Users can also choose various types of process connections to match their process requirements, such as flange, sandwich, (inter-flange), threaded and dairy screwed (DIN 11851) or clamp types.
› Reliable and Repeatable Measurements
The FLOW-38 flow meter features complex, processor-based signal processing with accuracy up to ±0.5%, and repeatability of up to ±0.2 % with sufficient straight run.
› Application Versatility.
Measures all conductive liquids such as water or wastewater, and other water-based liquids that have a minimum electrical conductivity, making it a versatile solution for a plethora of applications.
› Virtually No Maintenance
The flow meter does not have any moving parts in the flow tube, hence minimizing periodic maintenance requirements thus increasing plant availability and profitability.
› Multiple Design Configurations
The transmitter is offered in three designs to meet any site requirement: meter mounted, wall mounted, and panel mounted.
| Power | 230 VAC (50/60 Hz), 24 VDC |
| Diameter nominal | DN6-DN400 |
| Lining material | Rubber, PTFE, Ceramics, PEEK |
| Process Connecrions | Sandwich, Flange, Thread, Food Grade Clamp |
| Flow meter accuracy | Accuracy up to 0.5 %, repeatability up to 0.2 % |
| Pressure loss | Negligible |
| Special Features | Empty Pipe Detection |
| Electrode Material | CrNi steel DIN 1.4571, Hastelloy C4, Titanium, Tantalum, Platinum |
| Electronics Protection Class | IP67 |
| Flow Sensor Protection Class | IP65, IP67, IP68 |
› Variety of process connections available
› Custom lengths made to customer needs
› Possibility of full stainless steel design on request
› Large dynamic measuring range
› High measurement accuracy and repeatability
› Wide choice of materials for liners and electrodes
› Very simple and intuitive operation
› Flow monitoring and flow switching functions
› 350° swivel display for comfortable reading