TRICONEX 3722X 32-channel differential analog input module

Product Description

TRICONEX 3722X is a 32-channel differential Analog Input Module of Schneider Tricon CX series. It adopts TMR (Triple Modular Redundant) 2oo3 voting architecture with SIL3 certification for SIS safety instrumented and ESD emergency shutdown systems. The module acquires 4-20mA or 0~5V DC signals from field transmitters and provides loop power for 2-wire instruments. Full per-channel diagnostics and online hot-swap are supported; field wiring remains intact during module replacement. This version is without HART pass-through. It works with dedicated termination boards and serves as critical I/O spare part for high-risk process safety applications in oil & gas and chemical industries.

Specifications

• Model: 3722X
• Series: Tricon CX Safety I/O Module
• Type: Differential Analog Input Module (AI, non-HART)
• Channels: 32 differential input channels
• Input Signal: 4~20mA / 0~5V DC
• Loop Power: 24VDC, max 28mA per channel for 2-wire transmitters
• Input Impedance: 250Ω ±0.1% (4-20mA mode)
• Resolution: 16bit
• Accuracy: ±0.1% of reading
• Safety Certification: IEC61508 / IEC61511 SIL3
• Architecture: TMR triple modular redundancy, hardware 2oo3 voting
• Diagnostics: Wire break, short circuit, over-range, module self-test
• Mounting: Rack pluggable, online hot-swap supported
• Connector: 96-pin module port, mate with termination board (7400260-100)
• Power Supply: 24VDC (11~28.8V DC)
• Operating Temperature: -40℃ ~ +70℃; Storage Temperature: -40℃ ~ +85℃
• Humidity: 5~95%RH, non-condensing
• Ingress Protection: IP20
• Net Weight: Approx.1.2 kg
• Features: Channel-to-channel isolation, high common-mode noise rejection, fail-safe design

Application

1. Analog signal acquisition for SIS/ESD emergency shutdown systems in oil, gas and refinery plants;
2. Monitoring of pressure, level and temperature transmitters in high-risk chemical, coal chemical and pharmaceutical SIS;
3. Process parameter acquisition for boiler and turbine safety protection systems in power plants;
4. Analog sensor signal interface for F&G fire & gas detection systems;
5. Spare replacement and safety instrumented system retrofit for legacy Tricon CX installations.

Same Series Models

3723X (32ch AI with HART), 3506X, 3626X, 3809X, 3902X