Patent ID: 9228905
Filing Date: 2016-01-05
CPC Classification: G01K

Claim Text:
1. A resistance temperature device (RTD) measurement device, comprising: an input including a plurality of terminals from an RTD sensor; a plurality of burnout switches, each burnout switch connected to a terminal of the RTD sensor, wherein each of the plurality of burnout switches can provide a first voltage and a second voltage to the RTD sensor; a plurality of resources including a first current source for providing a first current to the RTD sensor and a second current source for providing a second current to the RTD sensor; a switch block connecting the plurality of terminals and the plurality of resources to determine a measurement of the RTD sensor, wherein the switch block is configured to provide; a first output channel measuring the a first voltage of the RTD sensor and the first current of the RTD sensor based on the first current provided to the RTD sensor; a second output channel measuring the second voltage of the RTD sensor and the second current of the RTD sensor based on the second current provided to the RTD sensor; and a processor for determining whether the first voltage of the RTD sensor and first current of the RTD sensor are within a specified limit and if not, reporting a wiring fault and determining whether the second voltage of the RTD sensor and second current of the RTD sensor are within the specified limit and if not, reporting a wiring fault.