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      ICS Triplex T8442
      ICS Triplex T8442
      ICS Triplex T8442
      ICS Triplex T8442
      ICS Triplex T8442
      ICS Triplex T8442
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      T8442

      Trusted TMR Speed Monitor
      In Stock
      Ships by Friday, October 2
      Fast Shipping Available

      Product Describe：

      ICS Triplex T8442 is a Trusted triple modular redundant speed monitor for rotating machinery. It evaluates speed and acceleration inputs and supplies fault-tolerant shutdown outputs for overspeed protection.

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      Technical specifications Information Technical notes FAQ

      Technical specifications for T8442

      Technical specifications for T8442

      • Manufacturer:
        ICS Triplex
      • Product Category:
        PLC Systems
      • Spare Part Number:
        T8442
      • Estimated shipping dimensions:
        3x30.5x26.5cm
      • Weight:
        1.24 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Speed groups:
        3
      • Input architecture:
        3 TMR speed inputs per group
      • Output architecture:
        2 quad-redundant structures per group
      • Sensor types:
        Active and passive
      • Input frequency:
        Up to 30 kHz
      • Input duty cycle:
        20 to 80%
      • Speed resolution:
        +/-1 RPM
      • Speed accuracy:
        0.01% FS or 1 RPM, whichever is greater
      • Detection threshold:
        200 mV peak-to-peak
      • Field supply:
        18 to 32 Vdc
      • System supply:
        20 to 32 Vdc
      • System power:
        22 W at 24 Vdc
      • Operating temperature:
        0 to 60 deg C
      View as PDF Ask for Quote

      Information

      Information

      Overview Manuals Common Applications Product Precautions
      T8442 provides three independent rotating-machine protection groups in one Trusted TMR module. Each group combines redundant speed sensing with fault-tolerant shutdown structures.
      • Protects rotating equipment against overspeed and overacceleration
      • Handles active or passive probe interfaces through the approved SIFTA
      • Provides independent protection groups for multiple machine trains
      • Combines continuous diagnostics with fault-tolerant shutdown outputs

      The module operates through the Trusted chassis and model-specific speed-monitor field termination assemblies. Engineering setup includes probe type, tooth count, speed scaling, acceleration logic, trip voting, bypass state and proof testing of associated shutdown circuits.

      Important Notice: Confirm T8442 identity and revision, Trusted chassis, T8846 SIFTA, T8891 SOFTA, TC-801 cabling, probe type, tooth count, speed and acceleration settings, firmware/application versions, bypass status and full trip proof test before commissioning.

      Apter Power T8442 Manuals and Guides

      The first document is the model-specific technical and system reference. The second is a distinct field workbook for installation, wiring, commissioning and acceptance records.

      Turbine overspeed protection
      Monitors shaft-speed inputs and commands the engineered shutdown path when the configured limit is exceeded.
      Compressor train protection
      Applies independent speed groups to rotating compressor drivers and their trip circuits.
      Generator speed supervision
      Tracks shaft frequency and acceleration during controlled start-up and operation.
      Pump-driver acceleration monitoring
      Supervises transient speed behavior where rapid acceleration must initiate protective action.
      Read the applicable ICS Triplex installation instructions before work. Verify T8442, the installed host system and all configured field interfaces before isolation, wiring or commissioning.
      1
      Confirm T8442, hardware revision and all three configured speed groups.
      2
      Place each connected machine train and trip circuit in a safe test state.
      3
      Verify T8846 SIFTA, T8891 SOFTA and TC-801 cable identities.
      4
      Record probe type, tooth count, scaling, trip and acceleration settings.
      5
      Check field and system supplies, returns, shields and grounding.
      6
      Inspect bypasses and overrides and obtain approval before test injection.
      7
      Simulate each speed channel and verify voting and diagnostic behavior.
      8
      Prove every shutdown output and remove test states before service release.

      Technical notes

      Technical notes

      Install T8442 with the approved T8846 SIFTA, T8891 SOFTA and TC-801 field interface cable, then configure each speed group for its probe type and toothed-wheel data. Validate direction, frequency response, trip setpoints and every shutdown output using controlled rotation or signal simulation.

      FAQS

      • What is the exact system role of T8442?
        It is the Trusted TMR rotating-machinery speed and acceleration monitor with fault-tolerant shutdown outputs.
      • Which host, rack or carrier is required for T8442?
        Use the configured Trusted chassis together with the T8846 speed-input FTA and T8891 speed-output FTA.
      • What wiring or connector checks apply to T8442?
        Verify the TC-801 interface, probe polarity, field returns, shields and the field-output circuits before test injection.
      • How is T8442 configured for service?
        Configure each group for probe type, tooth count, speed scaling, trip values, acceleration logic, voting and bypass behavior.
      • Which diagnostics should be reviewed for T8442?
        Review probe faults, frequency validity, slice discrepancies, group status, module health and shutdown-output diagnostics.
      • What must be preserved when replacing T8442?
        Preserve all three group assignments, probe data, setpoints, output mapping, hardware revision and approved bypass state.
      • How should T8442 be commissioned after installation?
        Inject controlled frequency ramps, prove indication and voting, then verify each trip output and reset sequence.
      • What model-specific limitation must be checked for T8442?
        The 30 kHz input limit and the tooth-count/RPM relationship must both be checked for the monitored rotor.
      Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
      Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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      ICS Triplex T8442
      ICS Triplex T8442
      ICS Triplex T8442
      ICS Triplex T8442
      ICS Triplex T8442
      ICS Triplex T8442