Designs And Applications

Magnetic flowmeters are available in conventional (see Figure 7.6.2), ceramic (see Figure 7.6.3), and probe (see Figure 7.6.4) constructions.

Most liquids or slurries are adequate electrical conductors to be measured by electromagnetic flowmeters. If the liquid conductivity is equal to 20 ¡S per cm or greater, most conventional magnetic flowmeters can be used. Special designs are available to measure the flow of liquids with threshold conductivities as low as 0.1 ¡S.

POTTING COMPOUND MAGNET COILS

FIG. 7.6.2 The short-form magnetic flowmeter.

POTTING COMPOUND MAGNET COILS

FIG. 7.6.2 The short-form magnetic flowmeter.

METERING ELECTRODES (SINTERED)

FIG. 7.6.3 The ceramic insert-type magnetic flowmeter.

METERING ELECTRODES (SINTERED)

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