The Basic Principles Of electromagnetic flow meter

The Basic Principles Of electromagnetic flow meter

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With appropriate focus towards the materials of development, the flow of really corrosive liquids (for example acid and caustic) and abrasive slurries is usually measured.

In the case of slurries, flow must be decreased to less than 2 m/s. In mining functions, by way of example, pulverized rock is combined into h2o and transported through pipes. massive, abrasive particulates shifting quicker than two m/s can put on absent the liner swiftly.

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This method of measurement is highly correct at measuring h2o-centered fluids as they move via a pipe.

The transmitter can take the voltage created because of the sensor, converts the voltage right into a flow measurement and transmits that flow measurement to the Handle method.

currently, dc excitation is Utilized in about eighty five% of installations and ac magmeters claim one other 15% when justified by the subsequent conditions: When air is entrained in huge quantities in the procedure stream;

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These mag meters make use of a more info non-intrusive measurement element and so are excellent in harsh environments necessitating negligible servicing.

Scaling can Create up on somewhat rough liners or on electrodes which have been flush or slightly recessed in the flow tube wall.

Within the context in the principles listed previously mentioned, electromagnetic flow meters usually have the next features.

once the fluid flows throughout the meter's pipe, it generates a voltage proportional to the flow fee. The meter actions this induced voltage to determine the flow rate.

Because the electrodes tend not to penetrate the fluid flow along with the meter overall body is chosen to match the surrounding pipe Proportions, there is essentially no strain drop.

there's no solitary flow measurement Alternative for every conceivable application. Coriolis meters are precise but may be highly-priced; vortex meters are tough but wrestle at minimal flow prices; differential tension flow measurement is usually cost-productive but, by definition, demands major stress drop; and electromagnetic flowmeters stay clear of strain drop but can only measure conductive fluids. Some functions have to have very restricted flow level measurement for chemical dosing or custody transfer. Other operations just have to establish flow, so a pump isn't going to burn out.

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