Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2011-08-02
2011-08-02
Wachsman, Hal D (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
C702S064000, C702S188000, C700S026000
Reexamination Certificate
active
07991582
ABSTRACT:
A process device for coupling to a two-wire process control loop—includes diagnostic circuitry configured to identify a failure or reduced level of performance or provide a prediction of a future failure or reduced level of performance. An output coupled to the two-wire process control loop is configured to provide an analog output on the loop related to an output from the diagnostic circuitry.
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Davis Dale
Longsdorf Randy
Rosemount Inc.
Wachsman Hal D
Westman Champlin & Kelly P.A.
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