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Product Description

The 1769-IT6 is a 6-channel thermocouple/millivolt input module for Allen-Bradley CompactLogix and MicroLogix 1500 systems. It provides high-precision temperature measurement with integrated Cold Junction Compensation (CJC), onboard filtering, and lead-wire compensation. Ideal for plastic injection molding, furnace control, and chemical processing, it supports multiple thermocouple types simultaneously while maintaining stability across industrial temperature fluctuations.


Technical Specifications

Item Specification
Catalog Number 1769-IT6
Inputs 6 Thermocouple or Millivolt channels
Supported Thermocouples J, K, T, E, R, S, B, N, C
Millivolt Input Range ±50 mV, ±100 mV
Resolution 14-bit (or 16-bit depending on configuration)
Backplane Current 100 mA @ 5.1 V DC, 45 mA @ 24 V DC
ADC Type Sigma-Delta
Input Impedance >10 MΩ
Common Mode Rejection >115 dB @ 50/60 Hz
Normal Mode Rejection >85 dB @ 50/60 Hz
Cold Junction Compensation Integrated thermistors
Open-Circuit Detection Upscale or Downscale, user-configurable
Isolation Voltage 30 V AC/DC continuous; tested 500 V DC / 1 s
Power Supply Distance Rating 8 modules (within 8 slots of power supply)
Operating Temperature 0–60 °C 

Key Notes

  • Per-channel configuration allows different thermocouple types on a single module

  • Open-circuit detection triggers Upscale or Downscale reporting

  • No external power required for thermocouples; draws power from backplane

  • For 3-wire RTDs, use the 1769-IR6 module instead

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