Process transmitter with a plurality of operating modes
AssigneeRosemount Inc.
InventorsTheodore Schnaare, Amanda Richardson
Life of this patent
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Abstract
A transmitter for measuring a process variable of an industrial process includes a sensor adapted to measure the process variable and to generate a sensor output. A mode selector is adapted to select between operational modes. At least one operational mode is related to an operational range of the sensor. Circuitry is adapted to compensate the sensor output according to the at least one operational mode and to generate a transmitter output representative of the measured process variable.
Claims34
A transmitter for measuring a process variable of an industrial process, the transmitter comprising:
- a housing configured to mount to the industrial process;
- a sensor adapted to measure the process variable and to generate a sensor output;
- a mode selector adapted to select between operational modest at least one operational mode related to operation of the industrial process and an operational range of the sensor;
- and
- circuitry in the housing adapted to compensate the sensor output according to the at least one operational mode and to generate a transmitter output representative of the measured process variable.
A transmitter for measuring a process variable associated with an industrial process, the transmitter comprising:
- a housing configured to mount to the industrial process;
- a sensor adapted to measure the process variable and to generate a sensor output;
- and
- circuitry in the housing adapted to select between sets of characterization information, each set of characterization information relating transmitter output to a range of operating conditions related to operation of the industrial process, the circuitry adapted to compensate the sensor output according to the selected set of characterization information and to generate the transmitter output compensated for the operating condition.
A process sensor for measuring a process variable of an industrial process and characterized for compensation of the measured process variable for two or more operating modes, the process sensor comprising:
- a housing configured to mount to the industrial process;
- a sensing element adapted to measure the process variable and to generate a sensor output;
- and
- a microprocessor in the housing adapted to process the sensor output into a transmitter output according to one of the two or more operating modes related to operation of the industrial process;
- and
- a transceiver in the housing adapted to transmit the transmitter output to a control center.
A transmitter for measuring a process variable of an industrial process, the transmitter comprising:
- a housing configured to mount to the industrial process;
- a sensor adapted to measure the process variable and to generate a sensor output;
- a first characterization relating transmitter output to a first range of operating conditions of the industrial process;
- a second characterization relating the transmitter output to a second range of operating conditions of the industrial process;
- and
- circuitry in the housing adapted to select between the first and the second characterizations and to compensate the sensor output according to the selected characterization in order to generate the transmitter output compensated for the operating condition.
Dependencies are inferred from the claim text.