Rockwell Automation 1790P-T4T0 CompactBlock LDX I/O Thermocouple Modules - Manual (Page 30)

Publication 1790-UM003A-EN-P - May 2002
2-16 Installation and Wiring
Cold Junction
Compensation To obtain accurate readings from each of the channels, the cold
junction temperature (temperature at the module’s terminal junction
between the thermocouple wire and the input channel) must be
compensated for. Cold junction compensating thermistors have been
integrated in the module.
Chapter Summary In this chapter, you learned how to install and wire your modules. See
Chapter 3 to learn about module data, status, and channel
configuration with DeviceNet.