Product Details
Product Description
The Allen Bradley FLEX I/O 1794-IRT8XT module is a high‑precision input device designed for temperature measurement applications using thermocouples and RTDs. It provides flexible data acquisition with multiple input formats, ensuring accurate monitoring in industrial automation systems.
Technical Specifications
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Manufacturer: Allen Bradley
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Catalog Number / Model: 1794-IRT8XT
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Series: FLEX I/O
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Product Type: Thermocouple/RTD Input Module
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Supported Data Formats:
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°C, °F, °K (implied decimal point XXX.X)
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Integer ranges: -32767…32767, 0…65535
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Resistance mode: 0…5000 Ω (implied decimal point XXX.X)
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Millivolt mode: -4000…10000 mV (implied decimal point XXX.XX)
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Temperature Drift (Max):
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Series A: 150 ppm/°C of span
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Series B: 50 ppm/°C of span
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Operating Temperature Range: -20…70 °C (-4…185 °F)
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Dimensions (HxWxL):
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Module: 5.3 × 9.4 × 4.6 cm (2.1 × 3.7 × 1.8 in.)
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Installed: 6.9 × 9.4 × 9.4 cm (2.7 × 3.7 × 3.7 in.)
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Shipping Weight: Approx. 2 kg
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Functionality: Supports multiple thermocouple types and RTD sensors for versatile temperature measurement
Application Scenarios
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Process industries requiring precise thermal monitoring (chemical, pharmaceutical, food production)
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Energy and utility systems with critical temperature control needs
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Manufacturing environments where multi‑channel input modules reduce hardware footprint
FAQ
Q: What sensor types are supported by the 1794-IRT8XT? A: It supports a wide range of thermocouples and RTDs, making it suitable for diverse industrial applications.
Q: How does Series B differ from Series A? A: Series B offers improved accuracy with reduced temperature drift (50 ppm/°C vs. 150 ppm/°C).
Q: Can this module be used in harsh environments? A: Yes, it is designed for industrial conditions with an operating range from -20 to 70 °C.
Comparison with Similar Models
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1794-IRT8XT: 8‑channel thermocouple/RTD input with wide format support
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1794-IRT4: 4‑channel version for smaller systems
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1794-IRT8: Similar 8‑channel module without extended temperature range
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
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.
Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.