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AO895

ABB AO895 8ch Intrinsic Safety Analog Output

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  • Manufacturer: ABB

  • Product No.: AO895

  • Product Type: Analog Output Module

  • Product Origin: SE

  • Payment:T/T, Western Union

  • Weight: 200g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The ABB AO895 (3BSC690087R1) is a high-performance analog output module from the S800 I/O series, specifically designed for hazardous area applications. This 8-channel module provides unipolar single-ended 4…20 mA signals and features integrated intrinsic safety components, making it a reliable interface for field devices in volatile environments.

One of the standout features of the AO895 is its individual HART interface for each channel, allowing for seamless bi-directional communication with intelligent field instruments. Despite its advanced technical capabilities, the module maintains a compact profile with a unit weight of just 0.2 kg (0.44 lbs), ensuring efficient use of cabinet space.

Technical Specifications

Parameter Detail Specification
Part Number 3BSC690087R1 (AO895)
Signal Type Analog Output (4…20 mA)
Output Channels 8 Channels (Single-ended)
Resolution 12-bit
Communication HART (Individual channel interfaces)
Isolation Groupwise isolated from ground

Key Performance Features

  • Hazardous Location Ready: Integrated safety barriers provide intrinsic safety for direct connection to sensors and actuators in Zone 0, 1, or 2.
  • Full HART Support: Enables remote configuration, maintenance, and diagnostics of field devices via the analog signal loop.
  • Precision Control: The 12-bit resolution combined with a wide under/over range capability (2.5 to 22.4 mA) allows for high-accuracy process control.
  • Robust Electrical Design: Rated for 50V insulation and 500V a.c. dielectric test voltage, ensuring stable operation and protection against ground loops.

Power & Environmental Data

The AO895 module consumes a typical current of 130 mA from the 5V bus and 250 mA from an external 24V supply. It is designed to dissipate 4.25 W during full-load operation. Its physical dimensions (Width: 45 mm, Height: 119 mm) make it a standardized fit for S800 I/O mounting bases, facilitating rapid integration into ABB 800xA or other compatible DCS systems.

Technical FAQs

Q1: Does each channel require a separate HART modem?
A1: No, the AO895 has integrated HART hardware for every channel, meaning no external modems are needed to access device data from your control system.

Q2: Is this module suitable for safety-critical loops?
A2: While the AO895 is intrinsically safe for hazardous areas, please verify with your specific project’s SIL (Safety Integrity Level) requirements for use in ESD or SIS systems.

Q3: What happens if the output goes out of range?
A3: The module supports an over-range up to 22.4 mA and an under-range down to 2.5 mA, allowing the DCS to detect faults like open or short circuits.

Condition: New & Original in Factory Packing

Warranty: 12 Months Factory Warranty

🏷️ Tags: Analog Output Module

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