The TRICONEX AI3351 is a high-performance 32-point analog input module designed for industrial automation and process control applications. It supports 4-20 mA current signals, making it ideal for monitoring sensors, transmitters, and other analog devices. With robust isolation and high accuracy, this module ensures reliable data acquisition in critical environments.
Specifications and Technical Details
The AI3351 module offers precise analog signal processing with the following specifications:
Input Type: 4–20 mA DC (32 channels, commoned)
Operational Range: 2–22 mA DC
Input Bandwidth: 16 Hz
Resolution: 12-bit
Absolute Error: ±0.15% of full scale (20 mA)
Scan Time: <1 ms for all 32 points
Isolation:
Functional-to-Protective Earth: 500 V DC (minimum)
Functional-to-Functional Earth (Logic): 800 V DC (minimum)
Diagnostic and Safety Features
The AI3351 module includes advanced diagnostics to enhance system reliability:
Force-to-Value Diagnostic (FVD): Detects and reports signal abnormalities.
High Voltage Isolation: Protects against electrical interference and ground loops.
Wide Input Range: Tolerates field voltages up to 33 V DC and reverse voltages up to -0.6 V DC.
Applications in Industrial Automation
The TRICONEX AI3351 is widely used in industries such as:
Oil & Gas: Monitoring pressure, temperature, and flow sensors.
Power Generation: Ensuring stable signal acquisition in turbine control systems.
Chemical Processing: Accurate measurement of process variables.
Manufacturing: Integration into PLC and DCS systems for real-time monitoring.
Its fast scan time (<1 ms) and high resolution (12-bit) make it suitable for dynamic control applications.
Installation and Compatibility
Power Supply: 24 V DC
Source Impedance: 180 Ω
Input Impedance (with baseplate): 250 Ω
I-to-V Resistor: 100 Ω (±0.01%)
The module is designed for easy integration with TRICONEX control systems, ensuring seamless communication and scalability.
Conclusion
The TRICONEX AI3351 Analog Input Module is a reliable, high-speed solution for industrial automation, offering 32-channel 4-20 mA input, advanced diagnostics, and robust isolation. Its precision, fast response time, and durability make it an excellent choice for critical process control applications.
