OVERVIEW

Official designation: Allen-Bradley 1746-NT4 (SLC 500, Analog Input Module)

The 1746-NT4 is a single-slot Analog Input Module for the SLC 500 platform, providing four channels capable of reading thermocouple types J through N and millivolt signals.

KEY SPECS SUMMARY

Power: 5V DC, 120 mA (backplane)

Interfaces / Ports: One 36-pin connector

Indicators: No external indicators

Operating Temp: 0 to 60 degrees C

Platform / Compatibility: SLC 500 modular hardware

Limit: Four input channels

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: Which common thermocouple types are fully supported by the 1746-NT4 module?

A: The module supports standard J, K, T, E, R, S, B, and N type thermocouples.

Wiring & Installation:

Q: What input signal ranges, other than thermocouples, does this module support?

A: It supports millivolt ranges including +/- 50 mV and +/- 100 mV input signals.

Troubleshooting & Compatibility:

Q: How should unused thermocouple input channels be properly handled?

A: Unused channels should be disabled in the configuration to prevent system errors.

Replacement & Upgrades:

Q: What is the direct functional replacement module for temperature monitoring in the SLC 500 series?

A: The recommended direct SLC 500 replacement is the 1746-NT8 Thermocouple Module.