Product Details
Description
The AI845 is a versatile input module for current-based transmitters, offering accurate signal conversion and integrated HART communication for seamless device diagnostics. Designed for high availability, it supports single or redundant setups via dedicated MTUs, ensuring continuous visibility of key process variables during maintenance or faults.
Specifications
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Manufacturer: ABB
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Country of Origin: Sweden
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Model Number: AI845 (3BSE023675R1)
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Input Channels: 8 channels (single-ended)
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Signal Range: 4 to 20 mA, 0 to 20 mA
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A/D Resolution: 12 bits
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HART Support: Bi-directional HART communication pass-through
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Redundancy: Supports 1:1 redundancy
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Power Supply: 24 VDC nominal
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Physical Weight: 0.25 kg (0.55 lbs)
Features
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High-Availability Redundancy: Specifically designed to work in pairs, providing a bumpless transfer of signal processing if the primary module fails.
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HART Protocol Integration: Facilitates digital communication with smart field devices for remote calibration and asset management.
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Built-in Current Limiting: Protects the module and system electronics against field wiring short circuits and over-current conditions.
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Advanced Internal Diagnostics: Continuously monitors the health of A/D converters and internal power rails, reporting status via LED indicators.
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Under-range and Over-range Detection: Automatically identifies and flags signal levels outside the standard 4-20 mA window to catch sensor failures.
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Galvanic Isolation: Features robust isolation between the field inputs and the internal ModuleBus to prevent electrical surge damage.
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
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Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.