Allen-Bradley 1746-INT4 SLC 500 Isolated Thermocouple Input Module

Product Overview

The Allen-Bradley 1746-INT4 is a high-performance isolated thermocouple/mV analog input module. It belongs to the SLC 500 series. This module provides four isolated input channels. It supports a wide range of thermocouple sensors. These include types C, D, J, K, T, E, R, S, B, and N. The device also handles mV signal inputs. It offers 16-bit resolution for precise measurements. The 1746-INT4 uses IPTS-68 linearization standards. Cold junction compensation ensures accurate readings. This module is ideal for industrial automation tasks. It delivers reliable performance in harsh environments.

Application Scenarios

This module is perfect for temperature monitoring applications. Use it in manufacturing plants and process control systems. It works well in chemical and petrochemical industries. The 1746-INT4 is suitable for food processing equipment. It also supports power generation and energy management. Engineers use it for oven and furnace control. It is common in HVAC systems and environmental chambers. The isolated inputs protect against ground loops. This makes it safe for sensitive measurement tasks. Use it for data acquisition in research labs. It is a versatile choice for many industrial settings.

Technical Specifications

The 1746-INT4 draws 110 mA at 5 Volts DC. It also consumes 85 mA at 24 Volts DC. The module has a bandwidth of 8 Hertz. It features a step response of 100 milliseconds in. The output step response is 2.5 milliseconds. Update time is 500 milliseconds. Open-circuit detection time is 5 seconds typical. Accuracy is ±1.5 °C from 0 to 70 °C. The module supports upscale, downscale, or zero detection. It has four isolated inputs. The resolution is 16 bits. This ensures high data integrity.

Installation & Maintenance Guide

Install the 1746-INT4 into any SLC 500 chassis. Ensure the backplane power is off before installation. Align the module with the card guides. Push it firmly into place. Secure it with the locking screws. Connect thermocouple wires to the terminal block. Use proper wiring practices for best results. Avoid running signal wires near high-voltage lines. Perform regular calibration checks. Clean the module with a dry cloth. Do not use solvents. Check for loose connections during maintenance. Replace the module if it shows damage.

Packing List

Each package includes one Allen-Bradley 1746-INT4 module. A user manual is provided for reference. The package also contains a terminal block. Mounting hardware is included for installation. No additional cables are included. Contact your supplier for accessories. The module is shipped in anti-static packaging.