TRICONEX 3825X – TMR System Module for High-Integrity Tricon Safety Control

Plants typically deploy the TRICONEX 3825X within high-integrity Tricon controllers used for:

• Emergency Shutdown (ESD) and High-Integrity Pressure Protection (HIPPS)

• Burner Management Systems (BMS) in boilers and heaters

• Turbomachinery protection and critical process interlocks

• Fire & Gas (F&G) logic when integrated with suitable I/O

• Refining, petrochemicals, upstream gas processing, power generation, and specialty chemicals

A maintenance lead at a Gulf Coast refinery mentioned they keep “a matched set of 38xx-series spares, including 3825X,” because it streamlines turnaround planning and reduces risk when swapping modules under controlled conditions.

• Reliability Under Fault – Supports TMR voting schemes that continue operation even if one path fails.

• Lifecycle Continuity – Suits brownfield installations seeking consistent spares policy and predictable maintenance.

• Compatibility – Works within the Tricon ecosystem alongside TriStation engineering and approved I/O/comm modules.

• Cost Control – Minimizes unscheduled downtime and helps standardize your spares inventory.

• Supported Engineering Workflow – Clear revision management and diagnostics simplify proof testing and MOC documentation.

• Cabinet & Ventilation – Mount within a Tricon-certified enclosure with adequate airflow; avoid hot spots near power supplies.

• Wiring & ESD – Handle with antistatic precautions; ensure the chassis is de-energized or follow site-approved hot-replacement procedures.

• Slotting – Install into the designated Tricon chassis slot(s) as per the system drawing; maintain triplet alignment for TMR.

• Firmware/Revision Control – Match module revision and firmware with the validated system image; document changes through MOC.

• Routine Checks – Use TriStation diagnostics for health status; schedule periodic proof tests and visual inspections for coating and connectors.

• Cleaning – Keep the cabinet clean and dry; light, non-conductive dusting only—no solvents on conformal coatings.

• Designed for use in IEC 61508 SIL3 safety instrumented systems when integrated within a certified Tricon controller

• Typical platform certifications: CE and UL for industrial control equipment; TüV assessments at the system level

• RoHS compliance is common for modern Triconex platform components (verify per specific revision)

• Manufacturer’s standard limited warranty applies to new modules; terms may vary by region and revision

If you’re matching a legacy installation, share your current hardware list (chassis model, firmware, and I/O card revisions). That way we can confirm 3825X compatibility and avoid surprises during commissioning.