1746-INT4 Allen Bradley

1746-INT4 Allen Bradley

Thermocouple/mV Isolated Input module which stores digitally-converted thermocouple and analog millivolt (mV) data for future retrieval by any SLC 500 processor.

Features:

• 4 input channels for Thermocouple and mV sensors.
• 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 120 dB between the inputs and chassis ground with 1kΩ imbalance and has an 8Hz channel bandwidth.
• Requires field calibration and must be calibrated at least once every year.
• It provides isolation tested at 1000V transient or 150V AC between channel-to-channel and channel-to-backplane. It has 5 LED indicators with 4 indicating each channel status and one indicating the module’s status.
• This module is compatible with Thermocouple sensors Type C, D, J, K, T, E, R, S, B, and N. It may also be used with mV signal with range of -100 to 100 mV DC.

Specifications:

• Manufacturer Rockwell Automation
• Brand Allen-Bradley
• Part Number/Catalog No. 1746-INT4
• Series SLC 500
• Module Type Isolated Thermalcouple/mV Analog Input Module
• Backplane Current (5 Volts) 110 milliamps
• Inputs Four (4); Isolated
• Backplane Current (24 Volts) 85 milliamps
• Thermocouple sensors Type C, D, J, K, T, E, R, S, B, and N
• mV signal inputs –50…50 mV dc –100…100 mV dc
• Bandwidth 8 Hertz
• Thermocouple Linearization IPTS–68 standard, NBS MN–125, NBS MN–161
• Cold junction compensation Accuracy ±1.5 °C (34.7 °F), 0 … 70 °C (32…158 °F)
• Open-circuit detection Upscale, downscale, or zero
• Backplane Current 110 mA @ 5VDC; 85 mA @ 24VDC
• Step Response 100 milliseconds in, 2.5 milliseconds out
• Step Response 100 milliseconds in, 2.5 milliseconds out
• Open circuit detection time 5 s, typical
• UPC 10612598169693
• Update Time 500 milliseconds
• Resolution 16 Bits