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AI890 3BSC690071R1

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AI890 3BSC690071R1 is an ABB S800 intrinsically safe analog input module for eight 0(4)–20 mA channels, with two-wire transmitter powering.
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Technical specifications for AI890 3BSC690071R1

  • Manufacturer:
    ABB
  • Part Number:
    AI890 3BSC690071R1
  • Product Family:
    ABB Advant OCS and Advant-800xA
  • Product Type:
    Analog Input IS 8 ch
  • Stock:
    1
  • Tariff Code:
    853890
  • Country of origin:
    Sweden
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Termination Options Loop Powering Diagnostic Indications Product Applications

Features:

  • Current acquisition: eight inputs accept 0–20 mA or 4–20 mA signals.
  • Transmitter operation: each channel can power and monitor a two-wire transmitter.
  • Intrinsic-safety interface: protection components are built into each channel.
AI890 3BSC690071R1 brings several process-current loops into an S800 station while keeping their measurements as individual input channels.

The channel can work with an externally powered source or supply a suitable two-wire transmitter. Loop design therefore starts with how the field device receives its power, not just its signal range.

The built-in components provide the field-side intrinsic-safety interface. They do not remove the need for an approved Ex loop design and the appropriate termination unit.

Apter Power supplies the ABB AI890 3BSC690071R1 Analog Input IS 8 ch module for S800 process-current installations.
ABB AI890 3BSC690071R1 Analog Input IS 8 ch Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • TU890 is the compact termination unit for Ex field applications.
  • TU891 is the compact termination unit for non-Ex applications.
  • These MTUs provide two-wire process-device connections without additional terminals.
  • The input stages receive their power through conversion of the external 24 V supply.
  • With an externally powered transmitter, the current-input path has a typical 3 V drop including its PTC.
  • For a module-powered transmitter, at least 15 V is available at a 20 mA loop current.
  • Transmitter power is current-limited to 23 mA under overload; this is a protection limit, not an additional measurement range.
  • Front indicators distinguish Fault, Run and Warning states.
  • Internal process-supply supervision reports supply-related trouble at the module.
  • Module Error, Module Warning and Channel Error indications separate module-wide status from individual-channel status.
  • S800 current-input stations receiving single-ended, unipolar 0–20 mA or 4–20 mA signals.
  • Powering and monitoring Ex-certified two-wire process transmitters in an approved intrinsically safe loop.
  • Measurement of externally powered current sources with the appropriate Ex or non-Ex termination arrangement.
Description
The AI890 3BSC690071R1 combines current measurement and intrinsically safe field interfacing in an S800 I/O module. Each input can receive a current signal from an externally powered device or power and monitor a two-wire transmitter, supporting different loop arrangements within the same station.

Built-in intrinsic-safety components on every channel of AI890 3BSC690071R1 allow the field connection to form part of an approved hazardous-area installation. This is more specific than a general analog-input function: the termination unit and complete loop design remain part of the installation, not optional accessories chosen only by connector shape.

AI890 3BSC690071R1 also supervises its internal supply and provides module, warning and channel diagnostics. Those indications help maintenance staff distinguish a station-level problem from an individual input problem before replacing field equipment.
Alternative Names
AI890 3BSC690071R1 AI890-3BSC690071R1 AI 890 3BSC690071R1 A1890 3BSC690071R1 AI89O 3BSC690071R1 AI890 3BSC69OO71R1
Technical notes
AI890 3BSC690071R1 isolates its eight channels as one group from ModuleBus and the power supply; it does not provide channel-to-channel isolation. Built-in intrinsic-safety components therefore must not be interpreted as independent galvanic separation between field loops. A design that requires individually isolated channels needs a different verified interface arrangement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can AI890 3BSC690071R1 read HART transmitter settings through the I/O station?
No. This module does not provide HART communication. It can measure the analog current from a suitable transmitter, but HART parameter access requires a separately supported communication path.
Is AI890 3BSC690071R1 suitable for capturing a five-millisecond current pulse?
The five-millisecond update cycle is not a five-millisecond input response. The input filter takes 75 ms to reach 90% of a step, so a short pulse can be substantially attenuated; select a faster acquisition path when that pulse must be resolved.
Can AI890 3BSC690071R1 be mounted vertically in a compact MTU at 50 °C?
No. Vertical mounting in a compact MTU has a 40 °C maximum ambient rating. The general 55 °C rating must not be used for that arrangement; lower the cabinet temperature or use an approved arrangement within its own rating.
Can I use AI890 3BSC690071R1 for a redundant analog-input pair?
Not as a supported redundant I/O configuration. The module is specified without redundancy support, so a design requiring redundant input modules needs a verified redundant-capable I/O solution.
Does the intrinsic-safety rating make AI890 3BSC690071R1 a high-integrity safety input?
No. Intrinsic safety concerns the hazardous-area field interface; it is not a functional-safety claim. This module is listed without high-integrity support and must not be selected as a safety input on the strength of its Ex interface alone.