Coriolis Flow Meter Mass Flow, FCS330

The flow measuring principle is based on the Coriolis Effect. The
FCS300 sensor’s measuring tubes are energized by an electromechanical
driver circuit which oscillates them at their resonance
Two pick-ups are placed symmetrically upstream and downstream
of the central driver. When a process fluid passes
through the sensor, the Coriolis Effect will act on the vibrating
tubes and cause deflection which can be measured as a phase
shift between pick-ups 1 and 2. The phase shift is proportional
to the mass flow rate.
The amplitude of the driver is automatically regulated to ensure
a stable output from both of the pickups.
The temperatures of the sensor tubes are measured with high
precision to provide compensation for changes with temperature
in the measuring properties.
The sensor signals are analyzed for flow, density and fluid temperature
in the sensor front end. The digital signal is controlled
to conform to high Safety Integrated Level (SIL) and sent digitally
to the transmitter via standard cable. The FCT030 further calculates
total mass and volume, fraction, dosing control and many
other functions.
The front-end module has a process noise filter, which can be
used to improve the meter’s performance when installation and
application conditions are not ideal. Typical interferences from
process conditions such as pump pulsations, mechanical vibrations,
oscillating valves can be reduced considerably.
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