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    ABB currently documents AI843 and article number 3BSE028925R1 in the official 800xA hardware selector. Confirm hardware revision, approvals and project compatibility before ordering.

AI843 3BSE028925R1

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ABB AI843 is an S800 Analog Input Module for the S800 platform.
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Technical specifications for AI843 3BSE028925R1

  • Manufacturer:
    ABB
  • Part Number:
    AI843 3BSE028925R1
  • Product Family:
    ABB Advant OCS and Advant-800xA
  • Product Type:
    S800 Analog Input Module
  • Stock:
    1
  • Signal specification:
    -30..75 mVlinear, TC types B, C, E, J, K, L, N, R, S, T and U
  • Number of channels:
    8
  • Signal type:
    See table
  • HART support:
    No
  • Redundancy support:
    Yes
  • High-integrity support:
    No
  • Intrinsic-safety support:
    No
  • Resolution:
    16 bits
  • Tariff Code:
    85389000
  • Country of origin:
    Switzerland
  • 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 Signal Data Diagnostics Compatibility Installation Check

Features:

  • Signal specification: -30..75 mVlinear, TC types B, C, E, J, K, L, N, R, S, T and U
  • Number of channels: 8
  • Signal type: See table
AI843 integrates 8 channels into the ABB S800 platform.

Assess signal limits, isolation, update time and diagnostics as one design.

Use a compatible MTU and verify the field loop before commissioning AI843.
Verified resources for ABB AI843:

Signal Data:

  • Signal specification: -30..75 mVlinear, TC types B, C, E, J, K, L, N, R, S, T and U
  • Number of channels: 8
  • Signal type: See table
Apply official AI843 limits to the complete field circuit.

Diagnostics:

  • F(ault), R(un), W(arning)
  • Module error: reference channels outside limits, power supply low Channel error: open-circuit, CJ channel error (ch 8): out of range <-40°C (-40°F) and >100°C (212°F)Junction channel) Channel error Linear: none
  • Module Error, Module Warning, Channel error
Resolve all AI843 diagnostics before operation.

Compatibility:

  • Compatible MTUs: TU818, TU830, TU833, TU842, TU843
  • Verify module keying
  • Confirm controller support
Match AI843 to an approved ABB S800 configuration.

Installation Check:

  • Check signal and field power
  • Verify MTU and channel mapping
  • Perform end-to-end tests
Document testing after installing AI843.
Description
ABB AI843 S800 Analog Input Module is an S800 Analog Input Module with 8 channels for -30..75 mVlinear, TC types B, C, E, J, K, L, N, R, S, T and U signals. ABB identifies it by article number 3BSE028925R1 for the S800 I/O platform.

Its documented channel design includes 16 bits resolution, Groupwise isolated from ground, an update cycle of 320 + 80 * (no of active channels) ms at 50 Hz 267 + 67 * (no of active channels) at 60 Hz. Evaluate these limits together with the field device, process power and cabinet environment.

Use AI843 only with a compatible ABB module termination unit such as TU818, TU830, TU833, TU842, TU843. Confirm signal range, keying, wiring, isolation, revision and channel tests before commissioning or replacement.
Alternative Names
AI843 AI 843 ABB AI843 ABB AI 843 AI843 3BSE028925R1 ABB 3BSE028925R1 ABB AI843 3BSE028925R1 AI843 S800 Analog Input Module
Technical notes
AI843 provides the documented ABB Analog Input channel set for -30..75 mVlinear, TC types B, C, E, J, K, L, N, R, S, T and U. Match signal, MTU, keying and hardware revision before commissioning.
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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.
Which signals does AI843 handle?
ABB specifies -30..75 mVlinear, TC types B, C, E, J, K, L, N, R, S, T and U across 8 channels.
Which termination units are compatible with AI843?
ABB lists TU818, TU830, TU833, TU842, TU843; check revision and keying.
How is AI843 isolated?
Official data states Groupwise isolated from ground. Include field power and grounding.
Which timing or conversion limit matters for AI843?
Use official resolution, filtering and update-cycle values when calculating response.
Can AI843 directly replace another ABB I/O module?
Only when signal, channels, MTU, keying, power, software, approvals and revision match.
Which diagnostics should be checked on AI843?
Review front LEDs and channel, module, power and communication diagnostics.
What should be tested after installing AI843?
Test every used channel through field device, wiring, MTU, database and final action.
What information is needed to quote AI843?
Provide AI843, article 3BSE028925R1, quantity, hardware revision, destination and certifications.

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