TRICONEX 3511 8-Channel Non-Commoned Pulse Input Module (TMR) for Tricon SIL 3 SIS

Product Description

The TRICONEX 3511 is a high-integrity Triple Modular Redundant (TMR) 8-channel non-commoned pulse input module, engineered by TRICONEX (Schneider Electric, former Invensys) for SIL 3 safety instrumented systems (SIS) in critical industrial environments. As a core safety pulse acquisition component, this hot-swappable module (supplied as a TMR set of 3) is designed to collect and process high-precision pulse signals from flow meters, speed sensors, encoders, and rotating machinery—with AC-coupled balanced differential input, 16-bit resolution, ±0.01% accuracy (1000 Hz to 20,000 Hz), and robust common-mode/overrange protection. It features TMR majority voting, channel-level diagnostics, and seamless integration with Tricon/Tricon CX chassis—making it ideal for emergency shutdown (ESD), fire & gas (F&G), turbine/compressor speed protection, flow totalization, and process safety systems in oil & gas, chemical, petrochemical, and power generation industries.

Key Functions

The 3511 pulse input module delivers fault-tolerant, TMR-voted pulse signal acquisition for safety-critical applications. Key functions include: 8 independent non-commoned AC-coupled balanced differential pulse input channels; high-precision 16-bit pulse counting/resolution with ±0.01% accuracy (1000 Hz to 20,000 Hz); robust common-mode range (-100 VDC to +100 VDC peak-to-peak) and normal-mode range (1.5 V to 200 V peak-to-peak); ±150 VDC continuous overrange protection; TMR majority voting (2-out-of-3) for data integrity; hot-swappable design for online maintenance without system shutdown; LED status indicators for module health, channel active status, and voting results; and compatibility with Tricon/Tricon CX main/expansion chassis.

Application Scenarios

The TRICONEX 3511 pulse input module is deployed in safety-critical industrial applications requiring high-integrity pulse signal acquisition with SIL 3 compliance. In offshore oil & gas platforms and refineries, it collects pulse signals from turbine speed sensors, flow meters, and compressor vibration monitors to trigger safety shutdowns. For chemical and petrochemical plants, it monitors reactor agitator speed, toxic gas detector pulse outputs, and emergency isolation valve position encoders, ensuring coordinated safety actions and compliance with IEC 61508/61511 standards. In power generation facilities, it connects generator speed sensors, cooling system flow meters, and breaker control circuit pulse feedback to Tricon SIS, supporting regulatory compliance and operational reliability. The module is also used in mining, pharmaceutical, and water/wastewater treatment—all scenarios where secure, high-availability pulse signal acquisition is mandatory.

Technical Specifications

• Global Inventory Network: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses—supporting faster delivery and reduced logistics costs.
• Pricing & After-sales: Competitive prices paired with reliable after-sales warranty services.
• Customer Coverage: Serving clients across regions including the United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
• Product Quality Assurance: All products are brand new and original. Spare parts include a 1-year warranty, and all items undergo pre-delivery testing and certification.
• Discount Policy:
• Multi-product orders qualify for custom discounts (contact us for details).
• We offer further price adjustments if you receive a lower quote for identical products from other suppliers, tailored to your budget.