TRICONEX 3805E 8-Channel Analog Output Module

The TRICONEX 3805E is an 8-channel analog output module designed for Tricon TMR safety instrumented systems. Built with Triple Modular Redundancy architecture, it converts internal control logic signals into standard 4~20mA analog current outputs to drive field regulating valves, actuators and variable-speed equipment.

This module provides channel-to-channel galvanic isolation and comprehensive circuit diagnostics, supporting hot-swap operation without system shutdown. Certified to SIL3 safety level, it delivers reliable closed-loop control for critical process loops, widely supplied as spare parts for plant safety system maintenance and upgrade projects.

Main Specifications

• Brand: TRICONEX (Schneider Electric)
• Model: 3805E
• Product Type: 8-Channel Analog Output Module
• Architecture: Triple Modular Redundancy (TMR) fault tolerant design
• Output Signal: 4~20mA DC analog current signal
• Resolution: 12-bit, Accuracy: ±0.25% full scale
• Channel isolation and built-in open/short circuit detection
• Support hot-swap replacement during system running status
• Safety Standard: SIL3 certified for safety instrumented systems
• Installation: Standard Tricon rack plug-in mounting

Core Functions

• Convert control commands from Tricon CPU into standard analog signals for field control actuators
• Adopt TMR voting mechanism to eliminate single-point failure risks of analog output loops
• Real-time detect abnormal conditions including wire breakage, short circuit and overload faults
• Support configurable fail-safe output status to guarantee process safety under module failure
• Realize online module replacement to reduce unplanned production shutdown duration
• Transmit diagnostic status data to main processor via rack backplane communication bus
• Fully compatible with Tricon series racks, power supplies and other I/O modules
• Cooperate with safety logic to realize continuous regulation control for critical process equipment
• Support parameter configuration, monitoring and fault diagnosis via Tristation engineering software
• Industrial-grade hardware design ensures long-term stable continuous operation in control cabinets

Application Scenarios

• Petrochemical plant continuous process closed-loop regulation control systems
• Oil & gas processing station and pipeline safety instrumented control racks
• Thermal power plant boiler auxiliary equipment regulating loop control cabinets
• Refinery reactor pressure, temperature and flow automatic adjustment units
• Chemical plant medium and high-risk process safety interlock control systems
• Offshore platform process equipment continuous regulation control equipment
• Pulp & paper factory medium-scale process monitoring and adjustment control cabinets
• Large-scale sewage treatment plant automatic flow and pressure control systems
• Renovation and expansion of legacy Tricon SIS safety control platforms
• Safety system I/O spare parts maintenance and emergency replacement projects