1794-IRT8 Rockwell Automation 8-Port Thermocouple Input

Availability: 20 left in stock

Product Overview The Allen-Bradley 1794-IRT8 functions as a high-density, multifunctional analog input module within the FLEX I/O family. It provides eight highly...

SKU: 1794-IRT8

Manufacturer: Allen Bradley
Product No.: 1794-IRT8
Product Type: Analog Input Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 600g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Allen-Bradley 1794-IRT8 functions as a high-density, multifunctional analog input module within the FLEX I/O family. It provides eight highly isolated channels capable of processing Thermocouple, RTD, and millivolt (mV) signals simultaneously. This module eliminates the need for separate RTD and TC cards, offering a consolidated solution for complex thermal monitoring applications. We supply this unit as 100% Brand New and Original, ensuring your industrial process maintains the highest level of signal accuracy and system uptime.

Technical Specifications

The 1794-IRT8 utilizes a 16-bit Sigma-Delta converter to deliver superior noise rejection and measurement precision.

Attribute	Specification Details
Catalog Number	1794-IRT8
Number of Inputs	8 Isolated Channels
Resolution	16-bit (1 part in 65,536)
TC Types Supported	J, K, T, E, R, S, B, N, C, L
RTD Types Supported	Pt100, Pt200, Pt500, Pt1000, Ni, Cu
Voltage Range	-100 to +100 mV
Accuracy	+/- 0.1 Percent Full Scale
Isolation	Channel-to-Channel and Channel-to-Backplane
FlexBus Current	250 mA at 5V DC
Terminal Base	1794-TB3G, 1794-TB3GS, 1794-TBN

Engineering Advantages

Universal Input Flexibility: The 1794-IRT8 accepts a mix of RTDs and Thermocouples on a single module. This versatility reduces your spare parts inventory and simplifies the design of heterogeneous temperature control loops.
Superior Signal Isolation: Industrial environments suffer from significant electrical noise and ground loops. This module provides robust channel-to-channel isolation, which prevents a fault on one sensor from propagating to others or damaging the backplane electronics.
High-Resolution Digitization: The 16-bit resolution allows the PLC to detect minute temperature shifts. This precision proves critical in pharmaceutical, chemical, and food processing industries where narrow thermal windows determine product quality.
On-Machine Distributed I/O: As part of the FLEX I/O system, the 1794-IRT8 mounts close to the process sensors. This minimizes the length of expensive compensated thermocouple lead wires, significantly reducing installation costs and potential EMI pickup.

FAQs

Q: Does the 1794-IRT8 require a specific terminal base?

A: Yes. You must install the module onto a compatible FLEX I/O terminal base, such as the 1794-TB3G or 1794-TB3GS. These bases provide the necessary grounding and cold-junction compensation (CJC) required for accurate thermocouple readings.

Q: Can I mix different Thermocouple types (e.g., Type J and Type K) on the same module?

A: Yes. You configure each channel independently via the PLC software (RSLogix 5000/Studio 5000). This allows you to monitor diverse sensor types across the eight available ports without hardware modifications.

Q: What is the difference between the 1794-IRT8 and the older 1794-IR8?

A: The 1794-IRT8 is a "combined" module. While the 1794-IR8 only supports RTDs and the 1794-IT8 only supports Thermocouples, the 1794-IRT8 supports both, plus millivolt inputs, offering significantly more application flexibility.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.