You can not change how the modules behave through FieldPoint Explorer. Due to the differences in circuitry in the FP-TC-120 and FP-TC-J/K modules, they report the Open Thermocouple error with different values (max scale and min scale respectively). However, both types of modules will report an Open Thermocouple warning (33489) through your interface program (e.g. LabVIEW). Tracking the error code will allow you to qualify the data and change it yourself in your code if you need to.
Regards,
Aaron
LabVIEW Champion, CLA, CPI