Thermocouple Connections

Thermocouple wires can be connected directly to the terminal blocks. The thermocouple junctions should not be grounded. If they do touch a ground reference, all thermocouples on a board must have a common ground reference. If multiple thermocouples are connected to different ground reference points, the accuracy of all thermocouples on the board cannot be guaranteed to be accurate.  When setting up a voltage input signal, such as a thermocouple input or any voltage input signal up to 1.28 volts, the jumper must be placed on the pins in the 1:1 setup (left diagram).