Method for determining faults during the operation of a pump unit
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United States of America Patent
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Dec 6, 2011
Grant Date -
Oct 2, 2008
app pub date -
Feb 5, 2005
filing date -
Feb 11, 2004
priority date (Note) -
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Abstract
A method is provided for determining faults during the operation of a pump unit. At least two electric variables that determine the electric output of the motor and at least one fluctuating hydraulic variable of the pump are detected. The detected values or values formed from these variables by algorithms are automatically compared to predefined stored values using electronic data processing and the results of this comparison are used to determine whether or not faults have occurred.
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