Product Details:

TRICONEX 3720 is a high-density 64-channel TMR analog input module built with triple modular redundancy (TMR) architecture for Triconex Tricon safety instrumented systems (SIS). This TMR safety I/O module collects analog signals from field pressure, temperature, flow and level transmitters, converting sensor analog signals into digital data for the Tricon main controller. The Tricon analog input module supports 0~5VDC signal range with 6% over-range capacity, and features programmable 12-bit or 14-bit signal resolution. It achieves high measurement accuracy less than 0.15% full scale within 0℃ to 60℃ operating temperature, with fast 10ms full channel update rate. It adopts single-ended input design and robust anti-interference circuit to reduce electromagnetic interference and ground loop noise from field wiring. Continuous built-in channel diagnostics can detect open circuit, short circuit, signal overrange and internal 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 and each channel signal state for fast on-site inspection and troubleshooting. It adopts 2-out-of-3 voting logic to eliminate single point of failure and fully meets SIL3 safety integrity level requirements. It can be installed in standard Tricon rack and cooperates with Tricon processor and other I/O modules. Widely applied in oil & gas, petrochemical, chemical and power industries, this TRICONEX 3720 analog input module is used for ESD emergency shutdown, fire and gas monitoring and other safety-critical control systems.

Specifications:

Manufacturer: TRICONEX (Schneider Electric)

Model: 3720

Product Type: Tricon 64-channel High Density Analog Input Module

System Compatibility: Tricon TMR Safety Instrumented System

Input Channels: 64 single-ended analog input channels

Signal Range: 0~5VDC, +6% over-range

Resolution: 12-bit / 14-bit programmable

Accuracy: <0.15% FSR (0℃~60℃)

Update Rate: 10ms for all channels

Input Resistance: 10 MΩ minimum

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

Safety Level: SIL3 certified

Diagnostics: Open circuit, short circuit, signal overrange and hardware fault detection

Feature: Hot swappable, high density 64 points single slot

Status Indicator: PASS, FAULT, channel status LED indicators

Mounting: Tricon rack plug-in

Operating Temperature: 0℃ ~ +60℃

Humidity: 5% to 95% non-condensing

Certifications: IEC61508, SIL3, CE