Product Details
Description
The AO890 is an intrinsically safe analog output module for actuators, positioners, and I/P converters in hazardous areas. With energy-limiting circuitry and bi-directional HART support, it enables safe, precise control and remote diagnostics. Ideal for petrochemical, pharmaceutical, and oil and gas applications.
Specifications
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Manufacturer: ABB
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Country of Origin: Sweden
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Model Number: AO890 (3BSC690072R1)
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Output Configuration: 8 single-ended channels
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Signal Range: 4 to 20 mA
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Safety Rating: Intrinsically Safe (Ex ia)
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D/A Resolution: 12 bits
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HART Support: Bi-directional HART pass-through
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Power Supply: 24 VDC nominal
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Physical Weight: 0.25 kg (0.55 lbs)
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Maximum Load: 750 ohms at 20 mA
Features
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Direct Hazardous Area Connection: Built-in isolation barriers allow for direct wiring to Zone 0/1 devices, optimizing installation costs and footprint.
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HART Digital Integration: Facilitates advanced device management and secondary variable monitoring via the control system.
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Galvanic Isolation: Provides high-level isolation between the system electronics and the hazardous field environment to prevent surge damage.
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Intelligent Safety Behavior: Supports programmable fail-safe modes to ensure actuators move to a designated safe position upon signal loss.
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Output Current Supervision: Continuously monitors the health of the output loop to detect open circuits or field wiring faults.
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Hot-Swap Support: Enables module replacement during live operation without compromising the safety integrity of the remaining I/O station.
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
Ensuring Operational Continuity: The Strategic Value of Redundant Automation Systems
In modern industrial landscapes, unplanned downtime is the ultimate adversary. For sectors relying on complex PLC and DCS architectures, a single hardware failure can trigger catastrophic production losses. Therefore, implementing redundant automation systems is no longer a luxury; it is a fundamental requirement for mission-critical operations. In this article, I analyze why redundancy remains the backbone of reliable industrial infrastructure.
Selecting the Right Cables for Industrial Automation: A Comprehensive Guide
Selecting the appropriate cabling infrastructure is critical for the success of any industrial automation project. Improper cable selection often leads to signal degradation, system instability, and costly downtime. As an automation engineer, I frequently see projects compromised by poor cabling choices in harsh industrial environments. This guide simplifies the complex landscape of cabling to help you make informed decisions for your PLC, DCS, and control systems.
Preventing Spurious Trips in Emergency Stop Systems: A Technical Guide
In industrial automation, the Emergency Stop (E-Stop) pushbutton is the ultimate safety line. However, relying on a single Normally-Closed (NC) contact can sometimes lead to unexpected spurious trips. As a control systems engineer, I have seen these nuisance trips halt entire production lines, causing significant downtime. Understanding why these components fail and how to implement robust architecture is essential for any reliable DCS or PLC-based safety system.