Patent ID: 11959783
Assignee: YOKOGAWA ELECTRIC CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 0:
1. A field device comprising:
a sensor configured to measure a physical quantity and output a measurement signal indicating a measured value;
a converter configured to perform a predetermined conversion process on the measurement signal; and
a processor configured to output an output signal corresponding to the measurement signal subjected to the conversion process, wherein
the processor
starts verifying operational soundness of the converter in a case in which a signal level of the measurement signal subjected to the conversion process continues to be below a predetermined threshold for a predetermined reference time, and
outputs, while the operational soundness of the converter is being verified, a signal corresponding to the measurement signal subjected to the conversion process and acquired immediately before the operational soundness of the converter is verified, or a signal corresponding to the measurement signal indicating a predetermined measured value of the sensor, as the output signal.