1756-IRT8I I/O Modules Allen-Bradley

Allen-Bradley 1756-IRT8I: Advanced Temperature Input Module

Core Specifications

Input Channels: 8 isolated channels
Resolution: 24-bit precision
Power Requirements: 200mA @ 5.1V, 150mA @ 24V
Isolation Rating: 250V continuous
Scan Time: 1ms module update rate
Thermal Dissipation: 15.7 BTU per hour

Comprehensive Sensor Support

RTD Compatibility

• Platinum: 100-1000Ω (alpha=385, 3916)
• Nickel: 100-500Ω (alpha=618, 672)
• Copper: 10Ω (alpha=427)

Thermocouple Types

• Standard Types: B, C, E, J, K, N, R, S, T
• Special Types: D, TXK/XK (L)
• Linearization: ITS-90 standard

Input Ranges

• Resistance: 1-500Ω to 8-4000Ω
• Voltage: -100 to +100 mV
• Millivolt: High precision measurement

Technical Excellence

Measurement Performance

• Accuracy: ±0.3°C for cold junction compensation
• Excitation: 600μA RTD current source
• Resolution: 0.01μV to 0.50mΩ per count
• Data Format: IEEE 32-bit floating point

Advanced Features

• Sigma-Delta conversion technology
• Dual integrated CJC sensors
• Synchronized sampling capability
• Wire-off detection (2-5 second response)
• Noise rejection: 75dB normal mode

Quality Assurance & Support

Our Commitment

• 100% genuine Allen-Bradley products
• Immediate shipment from stock
• 5-day delivery guarantee
• 30-day return policy
• Expert technical support
• FedEx, UPS, DHL shipping

Common Applications

• Process temperature monitoring
• Industrial oven control
• HVAC system management
• Chemical process control
• Food processing systems
• Pharmaceutical manufacturing

Frequently Asked Questions

What terminal blocks are required for installation?
The module requires 1756-TBCH or 1756-TBS6H 36-pin removable terminal blocks.

How many cold junction sensors are included?
The module includes two integrated CJC sensors with ±0.3°C accuracy.

What is the module's response time for wire break detection?
Open circuit detection times are 2 seconds for thermocouples and 3-wire RTDs, 5 seconds for 4-wire RTDs.

Is the module compatible with existing ControlLogix systems?
Yes, it integrates seamlessly with all ControlLogix chassis and controllers.

What is your shipping time for this product?
We ship within 5 business days via FedEx, UPS, or DHL.

Contact our :sales@nex-auto.com