Triconex 3722X Analog Input Module

Product Description
The 3722X is a Tricon CX series TMR (Triple Modular Redundancy) analog input module, developed by Triconex (Schneider Electric), designed for SIS safety instrumented systems. It has 32 single-ended analog input channels, supporting 4-20mA / 0-23mA current signal acquisition, compatible with 2-wire transmitters. The module adopts triple modular redundant architecture to achieve high fault tolerance, meets SIL3 safety level requirements. It provides built-in channel diagnostics, over-range protection and isolation function between field side and system side. The module is widely used in critical safety control loops of process industries.

Key Functions

• 32 channels single-ended analog input, 16-bit high resolution
• Input range: 0~23mA, with 250Ω parallel resistor for 4-20mA loop
• 5ms input update cycle, accuracy up to 0.15% FSR
• TMR triple redundant voting, supports hot swap during operation
• Field-to-system isolation, overvoltage and short-circuit protection
• Comprehensive channel fault diagnosis, LED status indication for pass/fail/active
• Support HART signal when matched with corresponding terminal board

Application Scenarios

• Oil & gas, petrochemical, chemical plant SIS safety interlock system
• Power plant boiler, turbine safety protection system
• Refinery, LNG, pipeline safety instrumented control
• Pharmaceutical and pulp & paper high-risk process safety control

FAQ

Q: What safety level does 3722X support?
A: It is certified for SIL3 safety integrity level, suitable for safety critical loops.

Q: Can it be hot swapped?
A: Yes, hot-swap supported, module replacement without system shutdown.

Q: Which terminal board matches 3722X?
A: Commonly matched with TBE-D5001-TRI-001 terminal board for HART multiplexing connection.