Manufacturer: ICS Triplex Part number: ICS Triplex T8830
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T8830: Product OverviewThe T8830 is a high-density analog input module designed for integration into the ICS Triplex Trident and Trusted safety instrumented system (SIS) architectures. Occupying a single slot in a standard system chassis, it serves as the primary interface for acquiring analog signals from field-mounted temperature sensors, such as thermocouples (TCs) and resistance temperature detectors (RTDs). Its role is to convert low-level sensor outputs into precise digital values for processing by the system’s logic solver, enabling safety functions like over-temperature shutdown or process interlock.The core functionality involves conditioning and digitizing 16 independent analog inputs. The module supports multiple sensor types, including common thermocouples (J, K, T, E) and RTDs (Pt100, Pt1000), with built-in cold-junction compensation for TC accuracy and linearization for non-linear sensor curves. It continuously monitors each channel for faults—such as open circuits, short circuits, or sensor breakage—and reports diagnostic status to the logic solver via the chassis backplane. The T8830 belongs to the Trident and Trusted product families, platforms engineered for fault tolerance and compliance with IEC 61508. The benefit of this integration is a unified system architecture where input, logic, and output components are validated as a cohesive unit, simplifying safety audits and enhancing overall reliability for SIL 3 applications.
Input Range: Per sensor type (e.g., J-type: -200°C to +1200°C; Pt100: -200°C to +850°C)
Accuracy: ±0.2% of reading + 0.5°C (thermocouple); ±0.1% of span (RTD)
Signal Conditioning: Cold junction compensation, linearization, filtering
Power Consumption: 2.8 W (from backplane)
Safety Integrity Level: SIL 3 (when integrated into a certified SIS)
Operating Temperature: -40°C to +70°C (-40°F to +158°F)
Dimensions: 31.8 mm x 128.3 mm x 119.9 mm (1.25 in x 5.05 in x 4.72 in)
Weight: Approximately 0.38 kg (0.84 lbs)
Certification: TÜV Rheinland certified
Diagnostics: Open circuit, short circuit, sensor break, overrange detection
Core Features & Customer ValueHigh-Density Channel Count: Providing 16 input channels in a single slot reduces rack space requirements and minimizes marshalling hardware. For end users, this translates to lower panel costs, simplified cable routing, and reduced documentation complexity—critical advantages in space-constrained installations like offshore platforms or modular skids.Multi-Sensor Compatibility: The module supports both thermocouples and RTDs, eliminating the need for separate input cards for different sensor types. Engineers can standardize on the T8830 for diverse temperature monitoring applications, streamlining spare parts inventory and training.Advanced Signal Conditioning: Built-in cold-junction compensation (for TCs) and linearization ensure accurate measurement across the sensor’s range. For process control, this precision maintains reliable detection of temperature deviations, reducing false trips and ensuring safety functions activate only when required.Comprehensive Diagnostics: Continuous per-channel monitoring detects faults like broken thermocouple wires or failed RTDs. For maintenance teams, this enables immediate fault localization—reducing mean time to repair by eliminating guesswork during troubleshooting. Early detection also prevents invalid data from corrupting safety logic.Seamless Backplane Integration: Communication with the logic solver occurs via the chassis backplane, ensuring deterministic data transfer without external networking overhead. For system integrators, this plug-and-play design streamlines installation and guarantees reliable communication, as the module’s operation is validated as part of the broader Trident/Trusted platform.
ICS Triplex T9831
Typical ApplicationsThe T8830 is employed in safety systems requiring reliable temperature monitoring of critical processes. In a chemical plant’s reactor protection system, it acquires signals from 16 thermocouples measuring catalyst bed temperature. If overheating is detected, the safety logic uses the data to trigger emergency cooling, with the module’s diagnostics ensuring invalid sensor readings do not delay shutdown.In an offshore oil platform’s flare gas system, the module interfaces with RTDs monitoring stack temperatures. The safety system uses the T8830 to detect abnormal temperature rises indicating potential flare inefficiency, initiating corrective action to prevent environmental releases.Another application is in a power plant’s boiler feedwater heater, where the T8830 reads 16 RTDs on heating element surfaces. During low-water conditions, the safety system uses the module to verify element temperatures before allowing restart, preventing dry-firing damage. The SIL 3 certification provides assurance of reliability in these high-stakes environments.
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