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LTC2983 grounded thermocouples - how to?

I am trying to understand how to use grounded thermocouples with the LTC2983.

When I say "grounded thermocouple" I mean a thermocouple where the TC ("hot") joint makes contact with its casing. In this particular case, the type J probe terminates on a ring that attaches to an engine cylinder head to measure its temperature. 

The data sheet does not mention this type of probe anywhere, but I understand it is possible to use them with the LTC2983.

I would like to know how to connect them in a single-ended as well as two wires (differential) configuration.