System and apparatus for sustaining process temperature measurement for rtd lead wire break
AssigneeHoneywell International Inc.
InventorsChaitanya Kumar Beeram, Sarabjit Singh, Sharath Babu Malve, Anthony F. Digiulian
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Abstract
Method and apparatus for sustaining process temperature measurement with respect to a lead wire break. A resistance temperature device can include a group of lead wire arms including lead wire arms of a first lead wire type and a second lead wire type. An operation can occur to automatically switch from a first lead wire type configuration to a second lead wire type configuration in the resistance temperature device having the plurality of lead wire arms including the first lead wire type and the second lead wire type, if one or more wire breaks occurs in one or more the lead wire arms.
Claims20
A method for sustaining process temperature measurement with respect to a lead wire break, said method comprising:
- configuring a resistance temperature device to comprise a plurality of lead wire arms including lead wire arms of a first lead wire type and a second lead wire type;
- and
- automatically switching from a first lead wire type configuration to a second lead wire type configuration in said resistance temperature device having said plurality of lead wire arms including said first lead wire type and said second lead wire type, if at least one wire break occurs in at least one arm of said plurality of lead wire arms of said resistance temperature device.
An apparatus for sustaining process temperature measurement with respect to a lead wire break, said apparatus comprising:
- a resistance temperature device comprising a plurality of lead wire arms including lead wire arms of a first lead wire type and a second lead wire type;
- and
- wherein a first lead wire type configuration automatically switches to a second lead wire type configuration in said resistance temperature device having said plurality of lead wire arms including said first lead wire type and said second lead wire type, if at least one wire break occurs in at least one arm of said plurality of lead wire arms of said resistance temperature device.
An apparatus for sustaining process temperature measurement with respect to a lead wire break, said apparatus comprising:
- a resistance temperature device configured to comprise a plurality of lead wire arms including lead wire arms of a first lead wire type and a second lead wire type, wherein a first lead wire type configuration automatically switches to a second lead wire type configuration in said resistance temperature device having said plurality of lead wire arms including said first lead wire type and said second lead wire type, if at least one wire break occurs in at least one arm of said plurality of lead wire arms of said resistance temperature device;
- and
- a controller that is electrically connected to said plurality of lead wire arms and to a current source via a first switch and to a current sink via a second switch, wherein said controller assists in automatically switching from said first lead wire type configuration to said second lead wire type configuration.
Dependencies are inferred from the claim text.