Model 8712C/U/H Magnetic Flowmeter Transmitters
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SYSTEM DESCRIPTION
A Rosemount Series 8700 Magnetic Flowmeter System measures
volumetric flow rate by detecting the velocity of a conductive liquid that
passes through a magnetic field. The system consists of two major
assemblies: the Model 8705, the Model 8707 High-Signal, or
Model 8711 Magnetic Flowmeter Flowtube combined with a magnetic
flowmeter transmitter.
The flowtube is installed in-line with process piping, either vertically or
horizontally. Coils located on opposite sides of the flowtube create the
necessary magnetic field. A conductive liquid moving through the
magnetic field generates a voltage that is detected by two electrodes.
The transmitter drives the coils to generate the magnetic field and
electronically conditions the voltage detected by the electrodes. The
transmitter than produces analog and frequency output signals
proportional to the liquid velocity.
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