{"product_id":"3351s2-triconex-tricon-analog-input-module","title":"Triconex 3351S2 Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Triconex 3351S2 is a high-reliability Analog Input Module designed for integration within the Tricon Triple Modular Redundancy (TMR) architecture. Engineered for safety-critical applications in oil and gas, petrochemical, and power generation sectors, this module provides continuous, high-precision monitoring of field sensors. It converts analog signals into digital data while performing comprehensive self-diagnostics to ensure system integrity. By employing a three-channel voting mechanism, the 3351S2 eliminates single points of failure, maintaining maximum system availability in demanding industrial environments.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMR Architecture:\u003c\/strong\u003e Utilizes three isolated input paths to process field data independently, providing hardware-based fault masking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Channel Density:\u003c\/strong\u003e Supports 32 isolated input points for efficient system scaling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot-Swappable:\u003c\/strong\u003e Designed for replacement during active operations to minimize maintenance downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanic Isolation:\u003c\/strong\u003e Protects the main processor from field-side electrical surges and noise interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Monitoring:\u003c\/strong\u003e Offers 12-bit resolution with an accuracy of less than 0.15 percent of Full Scale Range (FSR).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThe 3351S2 is intended for use in Safety Instrumented Systems (SIS) where continuous operation and high fault tolerance are required. Typical applications include emergency shutdown systems (ESD), burner management systems, and critical process monitoring in hazardous environments.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e3351S2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Range\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e32 points, isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eLess than 0.15 percent of FSR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Update Rate\u003c\/td\u003e\n\u003ctd\u003e50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e10 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the Tricon chassis is powered down before inserting or removing the module, unless performing a hot-swap in accordance with site safety procedures.\u003c\/li\u003e\n\u003cli\u003eHandle the module using ESD-safe practices to prevent damage to sensitive internal components.\u003c\/li\u003e\n\u003cli\u003eVerify that field wiring is correctly terminated to the corresponding terminal blocks and that shielded cables are properly grounded to mitigate EMI.\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation in the cabinet to maintain the operating temperature within the specified 0 to 60 deg C range.\u003c\/li\u003e\n\u003cli\u003eCheck for proper seating in the chassis backplane to ensure reliable communication with the main processor.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the 3351S2 hot-swappable?\u003c\/strong\u003e Yes, the module is designed to be replaced while the system is running, allowing for maintenance without requiring a full process shutdown.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the TMR design in this module?\u003c\/strong\u003e The Triple Modular Redundancy (TMR) design uses three parallel paths to process inputs; if one path fails, the other two continue to provide accurate data, ensuring the safety loop remains intact.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of signals does this module accept?\u003c\/strong\u003e The 3351S2 is configured for standard 4-20 mA DC analog input signals.\u003c\/p\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":50740497449212,"sku":"3351S2","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_c751ddbd-7419-4952-8ec6-06a34be726c9.jpg?v=1785410231","url":"https:\/\/www.electronicplc.com\/ar\/products\/3351s2-triconex-tricon-analog-input-module","provider":"Electronic PLC","version":"1.0","type":"link"}