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Allen-Bradley 1746-NR8 SLC 500 RTD Input Module

Allen-Bradley 1746-NR8 SLC 500 RTD Input Module

  • 16 Tersedia
  • Manufacturer: Allen-Bradley

  • Product No.: 1746-NR8

  • Condition: Tersedia

  • Product Type: SLC 500 RTD Input Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 340g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Deskripsi

Product Description

The Allen-Bradley 1746-NR8 is an eight-channel RTD and resistance analog input module developed for the SLC 500 programmable controller platform. This module is designed for high-accuracy temperature monitoring and resistance measurement applications in industrial automation systems.

The module accepts multiple RTD sensor types including platinum, copper, nickel, and nickel-iron elements, while also supporting direct resistance input devices. Its flexible input configuration allows integration into process temperature control, thermal monitoring, and machine protection systems.

The 1746-NR8 uses sigma-delta conversion technology to deliver stable analog signal processing with fine temperature resolution and reliable noise rejection. It is compatible with both fixed and modular SLC 500 hardware architectures.

Technical Specifications

Parameter Specification
Brand Allen-Bradley
Product Series SLC 500
Product Type RTD / Resistance Analog Input Module
Model Number 1746-NR8
Number of Input Channels 8 Channels
Input Type RTD and Resistance
Compatible PLC Platform SLC 500 Fixed and Modular Systems
Backplane Current @ 5V DC 100 mA
Backplane Current @ 24V DC 55 mA
Maximum Power Consumption 1.82 W
Power Dissipation 0.5 W at 5V DC, 1.32 W at 24V DC
A/D Conversion Method Sigma-Delta Modulation
Temperature Resolution 0.01°C
Update Time 6 ms to 2 s
Step Response 60 ms Input, 2.5 ms Output
Operating Temperature 0°C to 60°C
Storage Temperature -40°C to 85°C
Chassis Compatibility Any Slot Except Slot 0
Weight 0.75 lbs

Supported RTD Sensor Types

The 1746-NR8 supports the following RTD sensor standards:

  • Platinum 100 / 200 / 500 / 1000 Ohm (Alpha 0.00385)

  • Platinum 100 / 200 / 500 / 1000 Ohm (Alpha 0.003916)

  • Copper 10 Ohm

  • Nickel 120 Ohm (Alpha 0.00618)

  • Nickel 120 Ohm (Alpha 0.00672)

  • Nickel-Iron 604 Ohm

Supported Resistance Input Ranges

  • 0 to 150 Ohms

  • 0 to 300 Ohms

  • 0 to 500 Ohms

  • 0 to 1000 Ohms

Application Areas

The 1746-NR8 module is commonly installed in:

  • Industrial temperature monitoring systems

  • Furnace and oven controls

  • HVAC automation

  • Process manufacturing

  • Thermal process regulation

  • Water treatment facilities

  • Machine condition monitoring

FAQ

How many RTD channels are available on the 1746-NR8?

The module provides eight independently configurable analog input channels.

Can the module accept direct resistance measurements?

Yes. In addition to RTD sensors, the 1746-NR8 supports direct resistance input devices across multiple resistance ranges.

Which SLC 500 systems support this module?

The module is compatible with both fixed and modular SLC 500 platforms.

Can the module be installed in Slot 0?

No. The 1746-NR8 must be installed in any available chassis slot except Slot 0.

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