TRICONEX 3720 64-channel single-ended analog input module

Product Description

TRICONEX 3720 is a 64-channel single-ended analog input (AI) module for the Tricon TMR triple modular redundant safety system. It is a high-density analog acquisition module configured for 0~5V DC signals by software. It can accept 4~20mA transmitter signals with an external 250Ω shunt resistor. Built-in comprehensive channel diagnostics and over-range detection are available. It supports rack hot-swap and works with dedicated termination panels. Adopting 2oo3 TMR voting architecture, it meets SIL3 requirements. It is widely used for mass analog process signal acquisition in SIS and ITCC applications.

Specifications

• Model: 3720
• Brand: TRICONEX (Schneider Electric)
• Type: High Density Single-Ended Analog Input Module
• Channels: 64, single-ended
• Default Signal: 0~5V DC
• 4-20mA Input: With external 250Ω precision shunt resistor
• Resolution: 12bit / 14bit (software selectable)
• Channel Update Rate: 10ms
• Input Impedance: ≥10MΩ (voltage mode)
• Protection: Over-range protection, channel fault diagnostics
• Architecture: TMR triple modular redundancy, 2oo3 voting
• Mounting: Rack slot mounting for Tricon chassis
• Hot-swap: Supported
• Operating Temperature: 0℃ ~ +60℃
• Storage Temperature: -40℃ ~ +85℃
• Protection Class: IP20 (cabinet installation)
• Certifications: TÜV SIL3, CE, UL
• Matching Termination Panels: 9760-210, 9760-410

Application

1. Signal acquisition for temperature, pressure and level transmitters in petrochemical & refinery SIS
2. Process variable collection for gas turbine and steam turbine ITCC systems
3. Multi-loop analog signal monitoring for LNG and coal chemical plants
4. BMS and safety interlock systems for boilers and combined-cycle power plants
5. Pressure & flow monitoring and protection for natural gas pipelines and gas storages
6. Safety instrument signal acquisition for offshore platforms and oil & gas wellheads

Series AI Models

3704E, 3720, 3721