Allen-Bradley 1794-IRT8XT Thermocouple/RTD Analog Input Module – FLEX I/O Series
Imagine a continuous casting line running at full capacity when a thermocouple signal silently drifts out of range. Without a reliable, high-resolution temperature input module, the PLC receives no valid process value — alarms go undetected, melt temperatures exceed tolerance, and the result is scrapped product, unplanned downtime, and costly refractory damage. The Allen-Bradley 1794-IRT8XT is the precision front-end that prevents exactly this scenario, delivering accurate, noise-immune temperature data directly into your ControlLogix or CompactLogix control architecture.
Within Rockwell Automation’s FLEX I/O platform, the 1794-IRT8XT occupies a specialized niche: it is the extended-temperature-range variant of the 8-channel thermocouple and RTD input family, engineered for harsh industrial environments where standard modules cannot maintain calibration accuracy. Its combination of universal input capability, high common-mode rejection, and wide operating temperature tolerance has made it a benchmark reference in global process industries — from petrochemical plants in the Middle East to automotive paint shops in Central Europe.
Technical Specifications
- Catalog Number: 1794-IRT8XT
- Series: FLEX I/O (1794 Series)
- Manufacturer: Allen-Bradley / Rockwell Automation
- Module Type: Analog Input — Thermocouple / RTD
- Number of Channels: 8 (differential)
- Input Types Supported: Thermocouple types J, K, E, T, R, S, B, N; RTD types PT100, PT1000, NI120, Cu10
- Resolution: 16-bit
- Extended Temperature Rating: -25°C to +70°C operating (XT variant)
- Communication: Via FLEX I/O adapter (1794-AENT, 1794-ACN15, etc.)
- Backplane Current Draw: Refer to Rockwell publication 1794-TD002
- Agency Certifications: UL, CE, C-Tick (verify current listing with Rockwell)
- Weight: Approx. 320 g
Note: All specifications are sourced from Rockwell Automation published documentation. Konmask.com does not independently modify or fabricate technical data.
Key Features & Benefits
- Universal Thermocouple & RTD Input: A single module handles multiple sensor types, reducing spare-parts inventory and simplifying panel design.
- Extended Temperature Operation (XT): Maintains calibration accuracy in sub-zero ambient conditions — critical for outdoor installations, cold-storage facilities, and unheated enclosures.
- 16-Bit Resolution: Provides fine-grained process visibility, enabling tight PID loop control and early fault detection.
- Open-Wire & Over-Range Detection: Module reports channel faults to the controller, allowing the program to execute safe-state logic rather than acting on invalid data.
- High Common-Mode Rejection: Suppresses electrical noise from variable-frequency drives, welding equipment, and other industrial interference sources.
- FLEX I/O Form Factor: Compact DIN-rail mounting with hot-swap capability (adapter dependent), minimizing maintenance downtime.
- Seamless Studio 5000 Integration: Add-On Instructions and pre-built faceplates available through Rockwell’s ecosystem, accelerating commissioning.
Industry & Equipment Applications
- Metals & Mining: Furnace temperature profiling, ladle monitoring, continuous casting control
- Oil & Gas / Petrochemical: Reactor temperature measurement, pipeline heat-tracing verification
- Automotive Manufacturing: Paint oven zone control, body-in-white welding temperature monitoring
- Food & Beverage: Pasteurization, sterilization, and CIP temperature validation
- Pharmaceutical: Autoclave and clean-room HVAC temperature logging
- Power Generation: Turbine exhaust and bearing temperature supervision
- Cold-Chain & Refrigeration: Compressor suction/discharge temperature in sub-zero environments (leveraging XT rating)
System Integration & Compatible Parts
The 1794-IRT8XT is designed to operate within the broader FLEX I/O ecosystem. Common companion components include:
- Adapters: 1794-AENT (EtherNet/IP), 1794-ACN15 (ControlNet), 1794-ADN (DeviceNet)
- Terminal Bases: 1794-TB3, 1794-TB3S (spring-clamp), 1794-TB3T (extended)
- Power Supplies: 1794-PS13, 1794-PS3 for local bus power
- Controllers: ControlLogix (1756), CompactLogix (1769), GuardLogix platforms
- Related Analog Modules: 1794-IE8, 1794-OE4, 1794-IF4I for mixed analog architectures
If you need assistance selecting the correct adapter or terminal base for your application, contact our technical team before ordering.
Our Quality Assurance Process
- Source Verification: All units are sourced from authorized distributors or verified surplus channels with documented chain of custody.
- Visual & Physical Inspection: Each module is inspected for label integrity, connector condition, and absence of physical damage or counterfeit indicators.
- Functional Testing (where applicable): Modules are bench-tested against known-good reference configurations prior to shipment.
- Secure Packaging: ESD-safe bags, foam-lined boxes, and moisture-barrier packaging for international transit.
- Documentation: Certificate of conformance and inspection report available upon request.
How to Order
- Submit an inquiry via the Contact / RFQ form on this page or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Our team will respond within 1 business day with availability, lead time, and a formal quotation.
- Upon PO confirmation, we arrange export documentation, freight, and tracking.
We support T/T bank transfer, L/C, and other B2B payment terms. Minimum order quantity: 1 unit.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- Global Export Experience: Serving buyers in Southeast Asia, the Middle East, Europe, and the Americas with compliant export documentation.
- Technical Pre-Sales Support: Our engineers can review your BOM and confirm compatibility before you commit to a purchase.
- Competitive Lead Times: Extensive supplier network enables faster sourcing than traditional distribution channels for obsolete or long-lead items.
- Transparent Communication: No hidden fees. Clear quotations, honest lead times, and proactive shipment updates.
Frequently Asked Questions
Q: What is the difference between 1794-IRT8 and 1794-IRT8XT?
A: The XT suffix denotes the Extended Temperature variant, rated for operation from -25°C to +70°C ambient, versus the standard module’s narrower range. All other functional specifications are equivalent.
Q: Can the 1794-IRT8XT be used with a 1794-AENT EtherNet/IP adapter?
A: Yes. The module is compatible with all standard FLEX I/O adapters. Verify firmware revision compatibility in Rockwell publication 1794-TD002 for your specific adapter revision.
Q: Do you supply new, refurbished, or surplus units?
A: We supply both new-in-box and tested surplus units depending on availability. Condition is clearly stated in the quotation. All units pass our QA inspection process.
Q: Can you provide an export license or customs documentation?
A: Yes. We provide commercial invoices, packing lists, and certificates of origin. For specific export control requirements, please advise your destination country at the time of inquiry.
Q: What is the typical lead time?
A: Lead time varies by stock availability. In-stock units typically ship within 3–5 business days. Out-of-stock items are sourced within 2–4 weeks. Confirmed at quotation stage.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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