Allen-Bradley 1794-CJC2 Cold Junction Compensation Module for FLEX I/O

🔧 Allen-Bradley 1794-CJC2 Cold Junction Compensation Kit Overview

The Allen-Bradley 1794-CJC2 is a precision-engineered Cold Junction Compensation (CJC) module designed specifically for FLEX I/O thermocouple input systems. This essential component ensures accurate temperature measurement by compensating for ambient temperature variations at terminal connection points, delivering reliable data integrity in demanding industrial environments.

⚙️ Technical Specifications

• Catalog Number: 1794-CJC2
• Compatibility: FLEX I/O thermocouple input modules (1794-IT8, 1794-IE8, etc.)
• Compensation Method: Automatic cold junction reference
• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Mounting: DIN rail compatible with FLEX I/O chassis
• Certification: UL, CE, CSA approved for industrial use

🏭 Application Scenarios

Process Control Systems: Ideal for petrochemical refineries, pharmaceutical manufacturing, and food processing plants where precise temperature monitoring is critical for product quality and safety compliance.

Power Generation: Monitors turbine exhaust temperatures, boiler feed systems, and generator bearing temperatures in coal, gas, and nuclear power facilities.

HVAC & Building Automation: Ensures accurate climate control in commercial buildings, data centers, and cleanroom environments requiring tight temperature regulation.

✅ Key Benefits & Solutions

✓ Enhanced Accuracy: Eliminates measurement errors caused by ambient temperature fluctuations at terminal blocks
✓ Simplified Installation: Plug-and-play design integrates seamlessly with existing FLEX I/O architectures
✓ Cost-Effective Reliability: Reduces calibration frequency and maintenance downtime
✓ Industrial-Grade Durability: Rugged construction withstands harsh factory floor conditions
✓ System Scalability: Supports multi-channel thermocouple configurations for complex monitoring networks

🔌 Integration & Compatibility

The 1794-CJC2 mounts directly onto FLEX I/O chassis alongside thermocouple input modules, automatically providing cold junction compensation without additional wiring or configuration. Compatible with ControlLogix, CompactLogix, and SLC 500 controllers via FLEX I/O communication adapters (1794-AENT, 1794-ACN15, etc.).

📦 Package Contents

Each kit includes the CJC module, installation guide, and mounting hardware for immediate deployment in your automation system.

Upgrade your temperature measurement accuracy with genuine Allen-Bradley precision engineering—trusted by industry leaders worldwide for over 100 years.