Allen-Bradley 1794-CJC2 Flex Cold Junction Compensation CJC Sensor

Allen-Bradley 1794-CJC2 Flex Cold Junction Compensation Kit delivers accurate thermocouple readings in FLEX I/O by providing ambient-temperature data used for cold junction compensation at the thermocouple input. This two-piece kit includes two cold-junction compensators that work with FLEX I/O thermocouple input modules, such as the 1794-IT8 and 1794-IRT8, to reference the thermocouple's junction temperature and improve measurement accuracy across ambient conditions. By sourcing the reference temperature at the module, the CJC2 helps ensure thermocouple measurements reflect the true temperature at the sensing site, reducing drift and nonlinearity associated with the cold junction. This accessory is designed to integrate into the FLEX I/O ecosystem and is commonly used in factory automation, process control, and environmental monitoring applications where precise temperature data is required from thermocouples. The kit's two CJCs are packaged as a two-piece set for straightforward installation, aligning with Rockwell Automation's approach to scalable FLEX I/O thermocouple interfacing.