Allen-Bradley 1771-IR/D RTD Input Module
The Allen-Bradley 1771-IR/D is a Resistance Temperature Detector (RTD) input module designed for the PLC-5 series, providing precise temperature measurements across various industrial applications.
Key Features
- Input Channels: Six three-wire RTD inputs, accommodating multiple temperature sensors.
- Data Formats: Supports Natural Binary, BCD Actual Temperature, or Ohm Readings, offering flexibility in data representation.
- Resolution: 16-bit resolution with a sensitivity of 1.0°C or 1.0°F per bit, ensuring accurate temperature readings.
- Update Time: Channel update time of 50 milliseconds for all six channels, facilitating timely data acquisition.
- Sensor Compatibility: Compatible with 100 Ohm platinum and 10 Ohm copper RTDs, as well as other sensors reporting in ohms.
Technical Specifications
- Backplane Current: 800 milliamperes, eliminating the need for an external power supply.
- Signal Delays: DC On-state signal delay of 10 milliseconds; DC Off-state signal delay of 50 milliseconds; AC Off-state signal delay of 45 milliseconds (±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.
