Pepperl+Fuchs KCD2-UT2-1 Manual page 24

Functional Safety KCD2-UT2-(Ex)1, HiC2081
Operation
9. Apply a short circuit between terminal 1 and 4. Check if a short circuit of the cold junction
compensation is detected.
The red LED is flashing. The output behavior in the event of a fault depends on the
device configuration.
10. Set the device back to the original settings after the test.
Proof Test for external Cold Junction Compensation
You can also use this proof test if you are using an external cold junction compensation. In this
case set the preset compensation/reference temperature on the TC simulator, see step 3.
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