Product Details
Product Overview
The Allen-Bradley 1797-IRT8 is a high-performance, 8-channel temperature input module designed for the FLEX Ex I/O platform. This module provides a specialized interface for connecting Resistance Temperature Detectors (RTDs) and thermocouples in hazardous area applications. It is engineered to reside on the internal bus and offers configurable signal conditioning for precise thermal monitoring.
The 1797-IRT8 is primarily utilized in intrinsically safe environments where explosive atmospheres are a concern. By integrating high-density analog inputs into a compact form factor, it allows for efficient data acquisition from sensors such as Pt100, Ni, and various thermocouple types (J, K, T, E, R, S, B, N, C, and L).
Technical Specifications
| Feature | Specification |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Series | FLEX Ex 1797 |
| Module Type | Temperature Input (RTD / Thermocouple) |
| Number of Inputs | 8 Isolated Channels |
| Input Signal Range | -40 to 100 mV |
| Resolution | 16-bit |
| Settling Time | 8 milliseconds |
| Power Supply | 9.5V DC |
| Field-side Power Consumption | 1.6 Watts |
| Power Dissipation | 1.6 Watts maximum |
| Thermal Dissipation | 5.46 BTU/hr |
| Weight | 0.31 kg (0.69 lbs) |
Functional Characteristics
The 1797-IRT8 features advanced internal bus configuration, allowing engineers to define input types per channel. The module includes integrated lead resistance compensation to maintain signal integrity over long cable runs, ensuring that resistance variations do not skew temperature readings.
Designed for reliability in demanding industrial sectors—including oil and gas, chemical processing, and pharmaceutical manufacturing—the module supports the intrinsically safe standards required for Zone 1 and Zone 2 deployments when used with appropriate FLEX Ex backplanes and barriers.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Main Components of a SCADA System in Industrial Automation
Discover the key components of a SCADA system and how sensors, RTUs, master units, and communication networks integrate to monitor and control industrial processes in real time.
Key Functions of a SCADA System in Industrial Automation
Explore the four core functions of SCADA—data acquisition, communication, visualization, and control—and understand how this system powers industrial automation, process optimization, and remote supervision.
Instrumentation Earthing in Industrial Automation Systems
In industrial automation, earthing provides a safe, low-resistance path for electrical fault currents. It protects both equipment and personnel by diverting excessive current directly into the ground. Proper earthing is fundamental to PLC, DCS, and control system reliability, ensuring stable operation even under fault conditions.