ICS T8431
ICS T8431
ICS T8431
ICS T8431
ICS T8431
ICS T8431
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T8431

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ICS Triplex T8431 acquires forty triplicated analog field inputs for Trusted TMR safety applications and reports measured values, thresholds, diagnostics and time-stamped events.
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Technical specifications for T8431

  • Manufacturer:
    ICS Triplex
  • Part Number:
    T8431
  • Product Family:
    Trusted Triple Modular Redundant
  • Product Type:
    Trusted TMR 24 V DC Analog Input Module, 40 Channel
  • Stock:
    1
  • System Supply Voltage:
    20 to 32 V DC
  • Power:
    20 W
  • Module Location:
    T8100 or T8300 I/O module slot
  • Number of Inputs:
    40 triplicated channels
  • Input Current Range:
    0 to 22 mA
  • Input Voltage Range:
    0 to 5.5 V DC
  • Input Thresholds:
    Configurable
  • FTA Input Impedance:
    250 Ω
  • Module Input Impedance:
    16.967 kΩ; effective impedance is halved with a partner module
  • Resolution:
    3.906 µA per LSB
  • Safety Accuracy:
    ±200 µA
  • Calibration Accuracy:
    ±0.15%
  • Line Monitoring:
    Per channel; open- and short-circuit detection
  • Sequence of Events Resolution:
    1 ms
  • Timestamp Accuracy:
    ±10 ms
  • Field-to-System Isolation:
    50 V reinforced continuous; 250 V basic fault; type-tested at 2436 V DC for 60 s
  • Channel-to-Channel Isolation:
    None; channels share a common zero reference
  • Intrinsic Safety:
    External barrier required where applicable
  • Operating Temperature:
    0°C to 60°C
  • Storage Temperature:
    -25°C to 70°C
  • Relative Humidity:
    10% to 95%, non-condensing
  • Functional Safety:
    TÜV certified to IEC 61508 SIL 3
  • Dimensions:
    3.1 × 26.6 × 30.3 cm
  • Weight:
    1.149 kg
  • Tariff Code:
    8538900000
  • Country of origin:
    USA
  • 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 Thresholds Diagnostics Replacement Application
  • Acquires forty triplicated analog field inputs
  • Applies configurable thresholds and line monitoring
  • Reports diagnostics and time-stamped state changes

T8431 provides fault-tolerant analog signal acquisition for the Trusted safety platform.

Each field channel is processed through the module's triplicated architecture before its value and state are delivered to the Trusted controller.

The design combines threshold detection, field-circuit supervision, automatic internal testing and online replacement support for high-integrity applications.

Availability, condition, price, and shipping time for T8431 are confirmed during quotation.

ICS Triplex T8431 Manuals, Datasheets, Links

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.

  • Configure thresholds for the intended field signal
  • Separate process states from line-fault conditions
  • Restore approved settings from the safety application
  • Review slice and channel diagnostics before replacement
  • Confirm both module supply feeds are present
  • Use event records to investigate state changes
  • Identify the configured Companion or SmartSlot strategy
  • Inspect connector pins and documented keying
  • Verify the replacement becomes Educated before reliance
  • Emergency shutdown systems with analog transmitter inputs
  • Fire and gas systems using analog detectors
  • High-integrity pressure protection using safety transmitters
Description
T8431 is an ICS Triplex Trusted TMR analog input module for safety-related field signals.

Forty triplicated channels combine input conversion, configurable thresholds, field-line monitoring, automatic diagnostics and Sequence of Events reporting.

Companion-slot and SmartSlot strategies support controlled online replacement when the compatible field termination assembly, cable, keying and system configuration are maintained.
Alternative Names
T8431 ICS Triplex T8431 ICS TRIPLEX T8431 ICSTriplex T8431 Trusted T8431 Trusted TMR T8431
Technical notes
T8431 replacement requires confirming module revision, Trusted slot strategy, compatible FTA and cable, connector keying, loop loading, thresholds, diagnostics, and saved channel configuration; mismatches can impair safety input coverage.
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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 field termination assembly and cable should be specified with ICS Triplex T8431?
Match T8431 to the installation's documented FTA and TC-series field cable, and verify the field-power and safety concept before ordering.
Can ICS Triplex T8431 be replaced while the Trusted system remains online?
It supports online replacement in a correctly configured Companion or shared SmartSlot arrangement. Verify Active and Standby status and follow the official replacement procedure.
What should be preserved before replacing ICS Triplex T8431?
Record the hardware revision, slot strategy, FTA and cable, threshold configuration, channel mapping, line-monitoring settings and current diagnostic state.
What does the lack of channel-to-channel isolation mean for ICS Triplex T8431 wiring?
The channels share a common zero reference. Do not treat them as individually isolated loops; review grounding and external barrier arrangements for the complete installation.
What should be checked when the Healthy LED on ICS Triplex T8431 flashes red?
Review slice diagnostics and both module supplies. The indication can identify a detected slice fault or loss of one supply feed while the module remains operational.
Why must ICS Triplex T8431 loop loading be recalculated with a partner module?
A partner module halves the effective module input impedance, so the field transmitter must be able to drive the combined load without impairing measurement accuracy.
How must the field cable be keyed for ICS Triplex T8431?
Remove keying pins 1, 4, and 5 so the cable corresponds with the factory keying of ICS Triplex T8431. For Companion Slot installations, polarize both keying strips and never force a cable hood that does not seat correctly.