Method for ascertaining at least one malfunction of a conductive conductivity sensor
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United States of America Patent
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May 3, 2016
Grant Date -
Jan 16, 2014
app pub date -
Jul 12, 2013
filing date -
Jul 16, 2012
priority date (Note) -
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Abstract
A method and a sensor for ascertaining at least one malfunction of a conductive conductivity sensor having at least two electrodes applying a first electrical variable to the electrodes measuring at least a second electrical variable on the electrodes and deciding whether a malfunction is present based on measuring the second electrical variable. The second electrical variable is located in a first range when measuring the medium when no malfunction is present, and the second electrical variable is located in a second range in the case of a first malfunction, especially when the conductivity sensor is located at least partially outside of the medium, and the second electrical variable is located in a third range when a second malfunction is present, especially an electrode break or a break in a line to the electrodes.
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