Triconex 3700A AI Module | 32-Point Voltage/Current Input

Product Introduction

The Triconex 3700A Analog Input Module delivers high-performance signal acquisition for critical process control systems. This 32-channel module features Triple Modular Redundant architecture for maximum reliability. The 3700A ensures accurate data conversion with comprehensive diagnostics in demanding industrial environments.

Core Specifications

• Manufacturer: Triconex
• Model Number: 3700A Analog Input Module
• Product Type: TMR Analog Input Module
• Input Channels: 32 differential, DC-coupled points
• Input Voltage: 0-5VDC range with +6% tolerance
• Update Rate: 55 milliseconds per scan
• Resolution: 12-bit conversion precision
• Accuracy: <0.15% of Full Scale Range (0° to 60°C)
• Color Code: Yellow for visual identification

Electrical Performance

• Input Resistance: 30 MΩ minimum DC load
• Power-Off Resistance: 30 KΩ typical DC
• Common Mode Rejection: -80 dB typical (DC-100Hz)
• Common Mode Range: -12V to +12V peak
• Leg-to-Leg Isolation: 200 KΩ typical
• Current Input: 0-20 mA with 250Ω shunt resistor
• Overvoltage Protection: 150 VDC/115 VAC continuous

Signal Processing

• Normal Mode Rejection: -3 dB @ 8Hz
• Frequency Response: -17 dB @ 60Hz
• Noise Immunity: -23 dB @ 120Hz
• Three independent input channels
• Mid-value selection algorithm
• Digital conversion of variable voltage signals
• Data transmission to main processors

Common Questions

• What is the input voltage range?

0-5VDC with +6% tolerance for signal inputs.

• How many input channels provided?

32 differential DC-coupled input channels.

• What is the module update rate?

55 millisecond update rate for all channels.