1771-NT2 | Allen-Bradley High-Resolution Thermocouple Analog Input Module

Allen-Bradley · PLCs & Industrial Controllers

Description  The Allen-Bradley 1771-NT2 is a high-resolution, isolated analog input module designed for the PLC-5 / 1771 I/O platform. It enables precise acquisition of thermocouple and low-level millivolt signals for temperature measurement and process monitoring. The Allen-Bradley 1771-NT2 is well suited for industrial automation systems requiring accurate, noise-immune analog input performance.     Technical Specifications  Condition New/Never Used Surplus Brand Allen-Bradley Category PLCs/Machine Control Part Number 1771-NT2 Subcategory PLC Module/Rack Module Type N-Series Analog Input Module Number of Inputs 8 Input Types Thermocouple, Millivolt Supported Thermocouples B, C, E, J, K, N, R, S, T Input Resolution High-resolution millivolt and thermocouple measurement Data Format BCD or Natural Binary Backplane Current 1.5 A Typical AC Signal Delay (Off) 45 ±15 ms Typical DC Signal Delay (Off) 50 ms Wiring Arm 1771-WH Mounting Rack-mountable (1771 I/O chassis) Weight 1.70 lbs     Information About 1771-NT2 The 1771-NT2 is an N-Series analog input module from Allen-Bradley, engineered for integration into PLC-5 control systems using 1771 I/O chassis. It supports a wide range of thermocouple types as well as millivolt inputs, allowing flexible use across temperature-sensing and low-signal applications. Each channel features isolation from the backplane, improving measurement accuracy in electrically noisy industrial environments. This module communicates with the PLC-5 processor via block transfer, ensuring reliable data exchange for critical process control tasks. Key Features: Eight Differential Input Channels: Supports simultaneous acquisition of up to eight thermocouple or millivolt signals. Wide Thermocouple Compatibility: Accepts Types B, C, E, J, K, N, R, S, and T thermocouples. Millivolt Signal Support: Measures low-level signals from approximately –5 mV to +55 mV. High Input Resolution: Provides high-resolution measurement down to microvolt-level sensitivity for precise temperature control. Channel-to-Backplane Isolation: Reduces electrical noise and protects system integrity in harsh environments. Flexible Data Formatting: Supports BCD or natural binary data formats for PLC-5 integration. Fast Signal Response: Typical signal delay supports timely updates for process monitoring. Rack-Mount Design: Installs directly into standard 1771 I/O chassis using compatible wiring arms. Industrial-Grade Construction: Built to meet demanding PLC-5 system reliability requirements. The 1771-NT2 delivers the reliability and precision required for accurate temperature and low-level analog signal measurement in PLC-based process control systems.

Brand: Allen-Bradley · Category: PLCs & Industrial Controllers

Key features

• Eight Differential Input Channels: Supports simultaneous acquisition of up to eight thermocouple or millivolt signals.
• Wide Thermocouple Compatibility: Accepts Types B, C, E, J, K, N, R, S, and T thermocouples.
• Millivolt Signal Support: Measures low-level signals from approximately –5 mV to +55 mV.
• High Input Resolution: Provides high-resolution measurement down to microvolt-level sensitivity for precise temperature control.
• Channel-to-Backplane Isolation: Reduces electrical noise and protects system integrity in harsh environments.
• Flexible Data Formatting: Supports BCD or natural binary data formats for PLC-5 integration.
• Fast Signal Response: Typical signal delay supports timely updates for process monitoring.
• Rack-Mount Design: Installs directly into standard 1771 I/O chassis using compatible wiring arms.
• Industrial-Grade Construction: Built to meet demanding PLC-5 system reliability requirements.

Specifications

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