INDUSTRIAL PROCESS TEMPERATURE TRANSMITTER WITH SENSOR STRESS DIAGNOSTICS
First Claim
1. A temperature transmitter for sensing a temperature of an industrial process, comprising:
- a temperature sensor arranged to provide a sensor output related to the temperature of the industrial process;
measurement circuitry coupled to the temperature sensor configured to measure the temperature of the industrial process based upon the sensor output;
output circuitry configured to provide an output related to the measured temperature;
a memory configured to store temperature information related to excessive temperature events experienced by the temperature sensor; and
diagnostic circuitry configured to diagnose a condition of the temperature sensor based upon the stored excessive temperature information.
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Accused Products
Abstract
A temperature transmitter for sensing a temperature of an industrial process includes a temperature sensor arranged to provide a sensor output related to the temperature of the industrial process. Measurement circuitry is coupled to the temperature sensor and configured to determine the temperature of the industrial process based upon the sensor output. Output circuitry provides an output related to the measured temperature. A memory is configured to store temperature information related to excessive temperature events experienced by the temperature sensor. Diagnostic circuitry diagnoses a condition of the temperature sensor or other components based upon the stored temperature information.
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Citations
20 Claims
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1. A temperature transmitter for sensing a temperature of an industrial process, comprising:
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a temperature sensor arranged to provide a sensor output related to the temperature of the industrial process; measurement circuitry coupled to the temperature sensor configured to measure the temperature of the industrial process based upon the sensor output; output circuitry configured to provide an output related to the measured temperature; a memory configured to store temperature information related to excessive temperature events experienced by the temperature sensor; and diagnostic circuitry configured to diagnose a condition of the temperature sensor based upon the stored excessive temperature information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of performing diagnostics on a temperature transmitter of the type used to sense a temperature of an industrial process, comprising:
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sensing the temperature of the industrial process using a temperature sensor and providing a sensor output related to the sensed temperature; measuring the temperature of the industrial process based upon the sensor output using measurement circuitry; providing an output related to the measured temperature; storing excessive temperature information in a memory, the excessive temperature information related to excessive temperature events experienced by the temperature sensor; and diagnosing a condition of the temperature sensor based upon the stored excessive temperature information. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification