Description
Allen-Bradley 1762-IR4: 4-Channel RTD/Resistance Input Module
The Allen-Bradley 1762-IR4 from Rockwell Automation is a precision analog input module for MicroLogix control systems. It offers four channels for accurate temperature and resistance measurement in industrial applications. For complete wiring diagrams and configuration details, download the product manual here.
Technical Specifications
- Brand & Manufacturer: Allen-Bradley / Rockwell Automation
- Model: 1762-IR4
- Series: MicroLogix
- Module Type: RTD / Resistance Input
- Number of Channels: 4 configurable inputs
- Supported RTD Types: Platinum (385/3916), Copper, Nickel, Nickel-Iron
- Resistance Ranges: 0-150Ω, 0-500Ω, 0-1000Ω, 0-3000Ω
- Wiring Options: 2-wire, 3-wire, 4-wire RTD connections
- Conversion Method: Delta-Sigma
- Data Formats: Raw, Engineering Units, Scaled-for-PID, Percent
- Filter Settings: 10 Hz to 1 kHz (6 selectable frequencies)
- Resolution: Filter and configuration dependent (up to 16-bit effective)
- Heat Dissipation: 1.5 Watts maximum
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Dimensions: 90 x 87 x 40 mm (3.54 x 3.43 x 1.57 in)
- Update Rate: 5-1000 ms (depending on filter setting)
Packaging Contents
- One 1762-IR4 RTD/resistance input module
- Comprehensive installation and configuration documentation
- Express shipping via FedEx, UPS, or DHL available
- All products include 12-month performance warranty
Frequently Asked Questions
- What is the difference between 2-wire and 4-wire RTD connections?
4-wire connections provide better accuracy by eliminating lead resistance errors. - How often should I perform calibration?
The module can auto-calibrate every 5 minutes or on channel enable. - Can I mix different RTD types on the same module?
Yes, each channel can independently configure for different sensor types. - What is the typical accuracy of temperature measurements?
Accuracy depends on RTD type but typically reaches ±0.1°C with proper configuration. - How does the input filter affect response time?
Higher filter frequencies (1 kHz) provide faster response but less noise rejection.
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