1746-INT4 | Thermocouple Input Module

The 1746-INT4 is a SLC 500 Isolated Thermocouple/mV Analog Input Module. This Isolated Thermocouple/mV Analog Input Module has Four (4) Inputs compatible with Thermocouple Type C, Type D, Type J, Type K, Type T, Type E, Type R, Type S, Type B, Type N and –100…100 mV dc signals.The 1746-INT4 SLC 500 Thermocouple/mV Isolated Input Module by is an SLC 500 module which stores digitally-converted thermocouple and analog millivolt (mV) data for future retrieval by any SLC 500 processor. It has Four (4) input channels for Thermocouple and mV sensors. It has a backplane current of 110 mA at 5V DC and 85mA at 24V DC and an overall backplane power rating of 0.6W. It has Four (4) individually isolated input channels that are also isolated from the backplane and it uses a Sigma-Delta ADC modulation conversion method. It uses an analog filter with a low pass digital filter and has a normal rejection mode greater than 60 dB at 60 Hz between terminals. It also has a common rejection mode greater than 120dB between the inputs and chassis ground with 1kΩ imbalance and has an 8Hz channel bandwidth. The 1746-INT4 requires field calibration and must be calibrated at least once every year.