Product Details:

TRICONEX 3708E is a 16-channel galvanic isolated thermocouple analog input module built with triple modular redundancy (TMR) architecture for Triconex Tricon safety instrumented systems (SIS). This TMR safety I/O module collects millivolt temperature signals from field thermocouple sensors and converts raw temperature data into digital values for the Tricon main controller. The Tricon 16-channel thermocouple analog input module supports multiple thermocouple types including J, K, T, E, R, S, B and N, with built-in cold junction compensation for accurate temperature measurement. It adopts channel-to-backplane galvanic isolation to block surge voltage, ground loop noise and electromagnetic interference in harsh industrial environments. Triple redundant signal processing circuits and 2-out-of-3 voting logic eliminate single point of failure and ensure stable and precise temperature monitoring. Continuous built-in channel diagnostics can detect broken wire, reverse polarity and hardware faults, and upload fault alarm messages to the Tricon engineering workstation in real time. The module supports hot swap operation, maintenance personnel can replace the faulty module online without shutting down the whole safety system. Front panel LED indicators display module PASS, FAULT, ACTIVE and CJ FAULT status for fast on-site inspection and troubleshooting. It can be installed in standard Tricon rack and cooperates with Tricon processor and matching termination panels. Widely applied in oil & gas, petrochemical, chemical and power industries, this TRICONEX 3708E thermocouple analog input module undertakes temperature monitoring tasks for ESD emergency shutdown, fire and gas detection and burner management safety interlock systems.

Specifications:

Manufacturer: TRICONEX (Schneider Electric)

Model: 3708E

Product Type: Tricon 16-Channel Isolated Thermocouple Analog Input Module

System Compatibility: Tricon TMR Safety Instrumented System

Input Channels: 16 differential isolated thermocouple channels

Supported TC Types: J, K, T, E, R, S, B, N

Architecture: Triple Modular Redundancy(TMR), 2-out-of-3 voting

Safety Level: SIL3 certified

Compensation: Built-in cold junction compensation

Diagnostics: Broken wire, reverse polarity, hardware fault real-time detection

Feature: Hot swappable, galvanic isolation, high input impedance

Status Indicator: PASS, FAULT, ACTIVE, CJ FAULT LED indicators

Mounting: Tricon rack plug-in

Operating Temperature: 0℃ ~ +60℃

Humidity: 5% to 95% non-condensing

Certifications: IEC61508, SIL3, CE