Float diagnostics for level measurement
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United States of America Patent
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Issued Date -
Feb 5, 2009
app pub date -
Jul 31, 2007
filing date -
Jul 31, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A float level sensing system comprises a float and an elongated probe for sensing position of the float. The float is mounted proximate the probe so that the float floats atop the process material. The float drops outside a sensing range of the probe responsive to a failure of the float. A sensing circuit is operatively associated with the probe for measuring a characteristic of the probe representing position of the float and is operative to indicate a fault condition if the float is outside of the sensing range of the probe.
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