Data processing: measuring – calibrating – or testing – Testing system – Of sensing device
Reexamination Certificate
2005-02-15
2005-02-15
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Testing system
Of sensing device
C205S789000
Reexamination Certificate
active
06856930
ABSTRACT:
A potentiometric measuring probe contains an electrolyte (110) as well as a primary reference element (106) and a secondary reference element (108) that are arranged so that the front (148) of an electrolyte deficiency advancing from an opening (112) of the measuring probe arrives at the secondary reference element before it arrives at the primary reference element. The potential difference existing between the primary reference element and the secondary reference element is monitored, and when a predefined tolerance criterion is found to be violated, the elapsed operating time from the point when the measuring probe was put into operation is determined and used as a basis for calculating the remaining operating time of the measuring probe.
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Barlow John
Friedrich Kueffner
Le Toan M.
Mettler-Toledo GmbH
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