AI890 3BSC690071R1 S800 Analog Input Module ABB

 Product Description

Configured for 8-channel 0...20 mA signal acquisition in the ABB S800 I/O system, the ABB AI890 (AI890 Analog Input Module) provides unipolar single-ended analog inputs with an intrinsic safety interface. Article number 3BSC690071R1 identifies the module. The eight input channels share group-wise isolation from ground, while built-in current-limited transmitter power supports compatible two-wire process transmitters. (Compact Product Suite hardware selector)

Hardware Specifications

Intrinsic Safety and Analog Input Characteristics

The AI890 provides eight 0...20 mA unipolar single-ended inputs. ABB identifies the module as an intrinsic safety input module for the S800 I/O system. The module can accept externally powered current sources and can also provide power and monitoring for compatible two-wire Ex-certified process transmitters. (Compact Product Suite hardware selector)

The input stages use group-wise isolation from the ModuleBus and power supply. Built-in transmitter power includes current limiting. The specified under/over-range limits are 0 mA and 22 mA, while the analog conversion resolution is 12 bit. (Compact Product Suite hardware selector)

For intrinsic safety installation, the AI890 supports the TU890 and TU891 Module Termination Units. ABB documentation specifies TU890 and TU891 for this module, with the termination-unit selection depending on the application environment. (landscapes.abb.com)

Frequently Asked Questions

Q: How many analog input channels does the AI890 provide?
A: The AI890 provides 8 unipolar single-ended analog input channels with a specified 0...20 mA signal range. (Compact Product Suite hardware selector)

Q: Does the AI890 support HART communication?
A: No. The specified AI890 configuration does not provide HART support. (Compact Product Suite hardware selector)

Q: Which Module Termination Units are compatible with the AI890?
A: ABB specifies TU890 and TU891 as compatible Module Termination Units for the AI890. (Compact Product Suite hardware selector)

Field Installation Guidelines

• Install the AI890 within the specified S800 I/O mechanical arrangement.
• Select the compatible TU890 or TU891 Module Termination Unit according to the intended installation.
• Maintain correct polarity for each 0...20 mA input loop.
• Separate analog signal wiring from high-voltage and high-current conductors where practical.
• Use appropriate shield termination practices for the connected analog instrumentation.
• Verify the intrinsic safety installation concept, hazardous-area classification, and associated wiring before energizing the circuit.
• Check the ModuleBus and external 24 V connections against the applicable ABB installation documentation.
• Confirm that the ambient temperature remains within the specified 0 to +55 deg C operating range.
• Verify channel status and module diagnostics after installation before placing the connected control loop into service.

Other Attributes

• Series:ABB Advant S800 I/0, ABB Advant-800xA
• Country of Origin:  Germany/Finland/Sweden
• Lead Time: In Stock, 2 Working Days

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