Triconex 3703E Isolated Analog Input Module

The Triconex 3703E Isolated Analog Input Module is a high-performance module designed for industrial applications, offering reliable analog signal processing with isolation features. Below are the key details of the product:

Product Overview:

• Brand/Manufacturer: Invensys (Triconex)
• Part Number: 3703E
• Product Type: Isolated Analog Input Module
• Country of Origin: USA
• Weight: 3.2 kg
• Dimensions: 49 cm (L) x 49 cm (W) x 6.8 cm (H)

Key Specifications:

• Voltage Input:

  • Range: 0-5V or 0-10V1, +6%
  • Supports both low and high voltage input ranges.

• Isolated Points:

  • Yes, the inputs are fully isolated, ensuring safety and protection in industrial environments.

• Input Update Rate:

  • 50 ms, providing quick updates for real-time processing.

• Resolution:

  • 12 bits, offering precise analog-to-digital conversion.

• Accuracy:

  • Less than 0.15% of Full Scale Range (FSR) from 0° to 60°C, ensuring reliable measurements across operating temperatures.

• Input Resistance (Load):

  • 30 MΩ (DC), minimum.
  • Ensures minimal load on the signal sources, contributing to signal integrity.

• Power-Off Resistance:

  • 30 MΩ (DC), minimum.

• Common Mode Rejection:

  • -90 dB @ 60Hz, minimum.
  • -100 dB @ DC, minimum.
  • Excellent noise rejection in high-noise environments.

• Common Mode Range:

  • +200V peak, providing robust isolation against high-voltage peaks.

• Leg-to-Leg Isolation:

  • 20 kΩ, typical.

• Normal Mode Rejection:

  • @ 8Hz: -3 dB
  • @ 60Hz: -17 dB
  • @ 120Hz: -23 dB

• Input Overrange Protection:

  • 150 VDC/115 VAC with continuous protection against signal overload.

• Current Range:

  • 0-20 mA, with 250Ω shunt for 5V and 500Ω shunt for 10V inputs.

Functionality:

• Channels:

  • 16 analog input channels, compatible with HART communication for intelligent device integration.

• Connection and Wiring:

  • System Cable: ELCO connector (56 pin female system connector)
  • HART Connector: 26 pin HART connector male
  • Various other connection points for alarm, power supply, and cable trees as per the provided wiring diagram.

• Protection:

  • Continuous, with protection features built in for high voltage and current signals.

Additional Features:

• Fuses:

  • F1, F2 – Built-in fuse protection for enhanced system reliability.

• LED Indicators:

  • PW1, PW2, FF1, FF2 for monitoring power and power failure status.

Applications:

The Triconex 3703E Isolated Analog Input Module is suited for critical industrial automation systems where isolation, precision, and signal integrity are required. It is used to interface analog signals from field instruments (such as pressure, temperature, or flow sensors) while providing robust protection and accurate signal conversion.