Product Details
Overview
The Allen-Bradley 1771-IR is a high-precision RTD Input Module designed for accurate temperature measurement and resistance monitoring within 1771 I/O chassis systems. It supports multiple sensor types and provides reliable performance across a wide temperature range, making it ideal for industrial temperature control applications.
Key Features
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Model Number: 1771-IR
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Manufacturer: Allen-Bradley
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Product Type: RTD Input Module
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Number of Inputs: 6 RTD input channels
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Module Location: 1771 I/O chassis
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Sensor Types Supported:
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100 Ω platinum (α = 0.00385)
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10 Ω copper (α = 0.00386)
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Other RTDs (resistance readings only)
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Units of Measurement:
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Temperature: °C or °F
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Resistance: Ohms (10 mΩ or 30 mΩ resolution)
Performance Specifications
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Temperature Range:
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Platinum RTD: -200°C to +870°C (-328°F to +1598°F)
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Copper RTD: -200°C to +260°C (-328°F to +500°F)
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Resistance Range: 1.00 to 600.00 Ω
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Resolution:
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Platinum RTD: 0.1°C (0.1°F)
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Copper RTD: 0.3°C (0.5°F)
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Sensor Excitation Current: 1 mA constant current per channel
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Common Mode Impedance: >10 MΩ
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Input Overvoltage Protection: 120V RMS continuous
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Power Dissipation: 4.75 W (maximum)
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Thermal Dissipation: 16.2 BTU/hr
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Temperature Coefficient: +50 ppm/°C of full-scale range
Applications
The 1771-IR module is commonly used in process control, manufacturing, and industrial automation systems that demand accurate, multi-channel temperature monitoring. Its compatibility with both platinum and copper RTDs makes it versatile for a variety of sensing environments, including furnaces, reactors, and machine temperature feedback loops.
FAQs
Q: What sensors can be used with the 1771-IR module?
A: The module supports 100 Ω platinum and 10 Ω copper RTDs as standard, and can display readings in ohms for other RTD types.
Q: What is the maximum input resistance supported by the 1771-IR?
A: The 1771-IR can measure resistance up to 600 Ω, making it suitable for a wide range of RTD applications.
Q: How accurate is the 1771-IR in temperature measurement?
A: The module provides resolution down to 0.1°C for platinum sensors and 0.3°C for copper sensors, ensuring precise readings for critical processes.
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.
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