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TRICONEX AI3351S2 Analog input module
The TRICONEX AI3351S2 is a 32-channel analog input module for the Triconex Trident/SIS system. Employing a TMR (Triple Mode Redundancy) architecture, it is compatible with SIL3 safety scenarios and can accurately convert 4-20mA/0-10V field signals into digital values. It is used for acquiring parameters such as temperature, pressure, and flow in industries like petrochemicals and power, ensuring reliable triggering of emergency interlock actions.
Core Parameters
Parameter Details
Product Model: AI3351S2 (32-Channel Analog Input Module)
Compatible Systems: Trident/Trident + Safety System, compatible with Tricon redundant platform
Channel Configuration: 32 channels, supports differential/single-ended input, electrical isolation between channels
Input Signal: 4-20mA (2-22mA over-range), 0-10V, automatic range recognition, compatible with two-wire transmitter direct connection
Accuracy and Resolution: Accuracy ±0.1% of full scale, resolution 0.01% of full scale, 16-bit ADC sampling
Scanning and Refresh: 32-channel full scan <1ms, single-channel update delay <10ms, sampling frequency 16Hz
Redundant Architecture: TMR triple-mode redundancy, three independent ADC sampling per channel, median selection algorithm, no degradation in single-point failure
Electrical and Power Supply: 24VDC power supply, power consumption approximately 20W, anti-static 8kV, surge resistant 2kV
Environmental Adaptability Operating temperature: -40°C to +70°C; Humidity: 5%-95% RH (non-condensing); Vibration and electromagnetic interference resistant. Safety certification: Complies with IEC 61508 SIL 3; Adapts to TMR fault-tolerant architecture; Supports online fault diagnosis and alarms.
Email: xmxblynn@163.com
Phone: +86 18059884797
Core Functions and Features
TMR Redundant Acquisition: Three independent ADCs per channel for synchronous sampling, median selection output; single-point failure does not affect system accuracy, ensuring high availability of the SIS/ESD system.
High-Precision Signal Conversion: Adapts to various industrial standard analog signals, usable beyond the measurement range, meeting the accuracy requirements of process monitoring and adapting to parameter acquisition under complex operating conditions.
Comprehensive Self-Diagnosis: Online detection of open circuits, short circuits, overcurrent, overvoltage, and drift; fault location down to the channel level; real-time reporting to the main controller; supports non-stop maintenance.
Hot-Swap and Modularization: Supports online hot-swappable replacement, reducing system downtime and adapting to the rapid maintenance needs of industrial scenarios.
Interference Resistance and Stability: 16Hz low-pass hardware filtering suppresses field noise; channel electrical isolation prevents fault propagation; adaptable to highly interference-prone industrial environments.
Typical Application Scenarios: SIS/ESD systems in petrochemical and natural gas industries, acquiring parameters such as pressure, level, and temperature, triggering emergency shutdown interlocks.
For monitoring large generating units in the power and metallurgical industries, it is adapted for redundant acquisition and safe control of key parameters such as steam pressure and flow rate.
In scenarios with high safety requirements, such as pharmaceuticals and nuclear energy, it ensures continuous and safe monitoring of the production process.
Email: xmxblynn@163.com
Phone: +86 18059884797
Other related product models recommended:
TRICONEX 3700A
TRICONEX 4351B
TRICONEX 3604E
TRICONEX 4351A
TRICONEX 4329
TRICONEX 3503E
TRICONEX 3000656-210C1R
TRICONEX 9771-210
TRICONEX 8312
TRICONEX 3664
TRICONEX 8111
TRICONEX 9771 7400195-210 3000656-210
TRICONEX 9668 7400172-110 3000590-110
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