Allen-Bradley | 1746-NT8 | SLC 500

Product Description: Allen-Bradley 1746-NT8

The Allen-Bradley 1746-NT8 is an 8-channel thermocouple input module designed for use in SLC 500 systems. It provides high-accuracy temperature measurement using standard thermocouple types and includes cold junction compensation (CJC) and open-circuit detection. This module is ideal for process control applications requiring multiple temperature inputs and seamless integration into an SLC chassis.

Key Features

• 8 thermocouple input channels
• Supports thermocouple types J, K, T, E, R, S, B, and N
• Cold junction compensation via removable CJC sensor
• Open thermocouple detection
• High-resolution temperature readings
• Individual channel configuration
• Compatible with RSLogix 500 software
• Diagnostic and status indication
• No external power supply required for inputs

Technical Specifications

• Number of Channels: 8 differential inputs
• Supported Thermocouple Types: J, K, T, E, R, S, B, N
• Resolution: 14 bits
• Input Impedance: >10 MΩ
• Temperature Accuracy: ±0.5°C to ±2.0°C (sensor and range dependent)
• Conversion Rate: 440 ms for 8 channels
• Cold Junction Compensation: Removable sensor (included)
• Operating Temperature: 0°C to 60°C
• Storage Temperature: -40°C to 85°C
• Mounting: 1746 SLC chassis slot
• Certifications: UL, CE, CSA

Application Areas

• Industrial temperature monitoring
• Furnace and oven control
• Food and beverage processing
• Pharmaceutical and chemical production
• Batch processing systems
• Any application requiring multiple temperature sensor inputs

Advantages

• Integrates multiple thermocouple inputs into one module
• Simplifies wiring and reduces panel space requirements
• Offers high measurement accuracy and reliability
• Provides real-time diagnostics for faster maintenance
• Seamless integration with SLC 500 controllers and software