Product Details
Product Description
The 1794-IT8 is a high-precision thermocouple input module from Allen-Bradley’s FLEX I/O series, offering reliable temperature measurement for industrial control systems. It supports up to 8 thermocouple channels and is designed for integration with 1794-TB2, -TB3, and -TB3T terminal bases. The module provides robust protection, accurate signal conversion, and industrial-grade durability for demanding environments.
Technical Specifications
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Manufacturer: Allen-Bradley
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Model Number: 1794-IT8
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Product Type: Thermocouple Input Module
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Number of Inputs: 8 channels
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Compatible Terminal Bases: 1794-TB2, -TB3, -TB3T
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Nominal Input Voltage Range: -76.5 to +76.5 mV
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Resolution: 16 bits (2.384 µV typical)
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Indicators: 1 red/green power status LED
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Flexbus Current: 20 mA
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Power Dissipation: 3 W maximum @ 31.2 VDC
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Thermal Dissipation: 10.2 BTU/hour maximum @ 31.2 VDC
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Keyswitch Position: 3
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Isolation Voltage: Tested 850 VDC for 1 s (inputs and user power to logic)
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Data Format: 16-bit 2’s complement or offset binary (unipolar)
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Channel Bandwidth: 0–2.62 Hz (-3 dB)
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Operating Humidity: 5–95% non-condensing, IEC 60068-2-30
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Vibration Resistance: 5 g @ 10–500 Hz, IEC 60068-2-6
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Dimensions (L×W×H): 5.33 × 9.4 × 4.57 cm
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Weight: 2 kg
Key Features
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High Accuracy: 16-bit resolution ensures precise thermocouple readings.
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Compact Form Factor: Small footprint for easy integration into FLEX I/O systems.
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Visual Status: Red/green LED for power and module activity monitoring.
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Industrial Durability: Tested for vibration, temperature, and isolation withstand.
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Flexible Data Output: Supports 2’s complement and offset binary formats.
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Easy Installation: Mounts on standard FLEX I/O terminal bases.
Applications
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Process temperature monitoring in manufacturing and chemical plants
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Integration in distributed FLEX I/O control systems
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HVAC and environmental control requiring precise temperature input
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Industrial automation requiring multiple thermocouple channels
FAQ
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Q: How many thermocouple inputs does 1794-IT8 support?
A: The module provides 8 independent channels for temperature measurement. -
Q: What is the isolation capability?
A: Inputs and user power are tested to withstand 850 VDC for 1 second.
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
Redundant Automation Systems: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.