Product Description
The Allen-Bradley 1746-NR8 is an 8-channel RTD/resistance input module for the SLC 500 programmable logic controller (PLC). It is an open-style module that accepts a variety of RTD and resistance sensors, making it ideal for a wide range of applications. The 1746-NR8 is also compatible with the 1746-A2 fixed I/O expansion chassis, allowing users to add additional I/O points to their SLC 500 system.
Product Parameters
- Number of channels: 8
- Input type: RTD/resistance
- Input range: -200 to 800 degrees Celsius (-328 to 1472 degrees Fahrenheit)
- Accuracy: +/-0.25% of full range
- Resolution: 0.1 degrees Celsius (0.18 degrees Fahrenheit)
- Power consumption: 55 mA @ 24 VDC, 100 mA @ 5 VDC
Usage Methods
The 1746-NR8 is typically used to measure temperature, but it can also be used to measure other resistance-based parameters, such as pressure, level, and flow. To use the 1746-NR8, simply connect the RTD or resistance sensor to the appropriate terminals on the module. The module will then convert the resistance signal to a digital signal that can be read by the SLC 500 PLC.
Product Advantages
The 1746-NR8 offers a number of advantages over other RTD/resistance input modules, including:
- High accuracy and resolution
- Wide input range
- Compatibility with a variety of RTD and resistance sensors
- Easy to use
- Affordable
Applications
The 1746-NR8 is used in a wide range of applications, including:
- Industrial automation
- Process control
- Food and beverage processing
- Pharmaceutical manufacturing
- HVAC systems
- Environmental monitoring
Discontinuation
Please note that the Allen-Bradley 1746-NR8 is scheduled to be discontinued on September 30, 2024. Rockwell Automation recommends that customers migrate to the 1746-IN007C-EN-P RTD/resistance input module, which is a newer and more advanced module.
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