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
Redundant Automation Systems: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.