The Allen-Bradley 1746-NT4 is a thermocouple/mV analog input module for the SLC 500 series with four channels, supporting various thermocouple types. It boasts a 16-bit resolution, swift update times (26 ms to 1.2 s), and sigma-delta A/D conversion. Operating temperatures range from 0 to 60°C. Manufacturer Industrial Automation Brand Allen-Bradley Part Number/Catalog No. 1746-NT4 Series SLC 500 Inputs 4 Module Type Thermocouple/mV Analog Input Module Backplane Current (5 Volts) 60 milliamps No. of Inputs Four (4) Backplane Current (24 Volts) 55 milliamps Compatible Thermocouple Sensors J, K, T, E, S, R, B and N Update Time 26 milliseconds-1.2 seconds Compatible miliVolt signal +/- 50 mV and +/- 100 mV Resolution 16 bits in, 14 bits out Backplane Current 0.06 mA @ 5VDC; 0.04 mA @ 24VDC Step Response 60 milliseconds in, 2.5 milliseconds out Backplane Power Consumption 0.8W maximum (0.3W @ 5V dc, 0.5W @ 24V dc) Channels 4 backplane isolated Open Circuit Detection Zero; Upscale; Downscale UPC 10662468165911 I/O Chassis location Any slot except Slot 0 Operating Temperature 0 to 60 degrees Celsius Storage Temperature -40 to 85 degrees Celsius A/D Conversion method Sigma-delta modulation