Allen Bradley 1771-IR/D RTD Input Power Module

Allen-Bradley 1771-IR/D RTD Input Module

The Allen-Bradley 1771-IR/D is a high-precision Resistance Temperature Detector (RTD) input module designed for integration with PLC-5 systems. It facilitates accurate temperature monitoring by converting RTD resistance into a 16-bit binary value, ensuring reliable data acquisition for industrial automation processes.

Key Features

• Six RTD Input Channels: Supports six three-wire RTD inputs, accommodating both platinum and copper RTDs for versatile temperature measurement applications.
• High Resolution: Offers a resolution of 0.1°C (0.2°F), enabling precise temperature readings essential for critical process control.
• Rapid Update Rate: Achieves a channel update time of 50 milliseconds for all six channels, ensuring timely data acquisition and system responsiveness.
• Flexible Data Formats: Provides multiple data formats, including Natural Binary, BCD Actual Temperature, and Ohm Readings, to suit various application requirements.
• Wide Temperature Range: Capable of measuring temperatures from -200°C to +870°C (-328°F to +1598°F) for platinum RTDs, and -200°C to +260°C (-328°F to +500°F) for copper RTDs, covering a broad spectrum of industrial needs.

Technical Specifications

• Voltage Range: 100 Ohms for platinum RTDs; 10 Ohms for other types.
• Backplane Current: 800 mA, eliminating the need for an external power supply.
• Signal Delays: DC On-state delay of 10 ms; DC Off-state delay of 50 ms; AC Off-state delay of 45 ms (±15 ms).
• Power Dissipation: Maximum of 4.75 W, with thermal dissipation of 16.2 BTU/hr.
• Operating Temperature: 0°C to 60°C (32°F to 140°F), suitable for various industrial environments.
• Storage Temperature: -40°C to 85°C (-40°F to 185°F).
• Humidity: 5% to 95% non-condensing.

Installation and Compatibility

• Mounting: Rack-mountable design compatible with 1771 I/O chassis.
• Wiring Arm: Utilizes the 1771-WH wiring arm for secure connections.
• Certifications: UL Listed, CSA certified, and CE compliant, ensuring adherence to industry standards.

The 1771-IR/D RTD Input Module is engineered to deliver reliable and accurate temperature monitoring, making it an essential component for industrial automation systems requiring precise thermal data.