Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
D-4
The pulsed dc field coil design has the following advantages:
• Automatic Zeroing — A new reference is established with each
sample of the flow signal, several times a second. This eliminates
the need to zero the system under a no-flow condition that
requires process shutdown.
• Low Power Consumption — The field coils are energized with a
controlled amplitude current; thereby, reducing the power
requirements of pulse dc systems.
• Simplified Installation – Fewer electrical connections and
conduit runs are required in comparison to most ac systems.
In addition, special power-shielded cables are eliminated because
the dc signal is immune to most of the noise sources that
affect ac systems.
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