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The Allen-Bradley 1746-INT4 is a sophisticated thermocouple/mV isolated input module designed for the SLC 500 PLC platform, offering four individually isolated input channels. This module supports a wide range of thermocouple types, including B, C, D, E, J, K, N, R, S, and T, as well as analog input ranges from -100 to 100 mV DC, facilitating precise and reliable temperature and signal measurements. With its Sigma-Delta ADC modulation, low pass digital filter, and high noise rejection capabilities, the 1746-INT4 ensures accurate data acquisition and integrity, while offering cold junction compensation and selectable temperature and millivolt scales, making it ideal for diverse industrial applications.