Allen-Bradley 1746-NR4 SLC 500 RTD/Resistance Input Module
The Allen-Bradley 1746-NR4 provides four high-accuracy RTD and resistance input channels. This module ensures precise temperature and resistance measurement for industrial applications.
Technical Specifications
- Brand: Allen-Bradley | Rockwell Automation
- Model: 1746-NR4
- Input Channels: 4 RTD/resistance inputs
- RTD Types: Platinum, Copper, Nickel, Nickel Iron
- Resistance Ranges: 0-150Ω, 0-300Ω, 0-500Ω, 0-1000Ω
- Temperature Range: -200°C to 850°C
- Resolution: 0.01°C (temperature), 0.1Ω (resistance)
- Update Time: 17ms to 1.2 seconds
- Accuracy: ±0.1°C typical
- Isolation: 500V AC for 1 minute
- Backplane Current: 50mA @ 5V DC, 50mA @ 24V DC
- Power Consumption: 1.5W maximum
- Operating Temperature: 0°C to 60°C
- Filter Frequencies: 2.62Hz to 65.5Hz programmable
Installation & Wiring
- Install in any slot except slot 0
- Use 3-wire or 4-wire RTD connections
- Shielded cable recommended for noise immunity
- Maximum wire length: 100 meters
- Ensure proper grounding practices
- Follow sensor manufacturer guidelines
Package Contents
- One 1746-NR4 RTD input module
- Installation and configuration guide
- Compatibility documentation
Shipping Information
- Worldwide shipping available
- Carriers: FedEx, UPS, DHL
- Secure protective packaging
- Tracking provided for all orders
Module Comparison
- Different function than 1746-FIO4I Fast Analog I/O
- Different function than 1746-NT8 Thermocouple Input
- The 1746-NR4 specializes in RTD and resistance inputs
Expert FAQ
- What RTD types does it support? Platinum, Copper, Nickel, and Nickel Iron
- What is the temperature measurement range? -200°C to 850°C
- Does it support 3-wire and 4-wire connections? Yes, both connection types
- What is the resolution for temperature readings? 0.01°C for high precision
- Can it detect sensor failures? Yes, open and short circuit detection
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