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3721

Triconex 3721 Analog Input Module | 32-Channel TMR

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  • Manufacturer: Invensys Triconex

  • Product No.: 3721

  • Product Type: Analog Input Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 800g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Triconex 3721 Analog Input Module Overview

The 3721 Analog Input Module from Triconex delivers high-performance signal acquisition for critical control systems. This 32-channel module provides exceptional accuracy and reliability in demanding industrial environments. The 3721 module features Triple Modular Redundant (TMR) architecture for maximum system availability.

Key Technical Specifications

  • Manufacturer: Triconex | Model: 3721 Analog Input Module
  • Input Voltage Range: 0 to 5 VDC or -5 to +5 VDC with ±6% tolerance
  • Input Channels: 32 differential, DC-coupled points with full isolation
  • Input Update Rate: 10 milliseconds for real-time data acquisition
  • Programmable Resolution: 12 bits or 14 bits for flexible accuracy needs
  • Accuracy: Better than 0.15% of Full Scale Range from 0° to 60° C

Electrical Characteristics

  • Input Resistance: 10 MΩ (DC) minimum for minimal loading
  • Common Mode Rejection: -85 dB (DC to 100 Hz) for noise immunity
  • Common Mode Range: -12V to +12V peak for wide signal tolerance
  • Input Overrange Protection: 150 VDC/115 VAC continuous protection
  • Leg-to-Leg Isolation: 420 kΩ typical for channel separation

Signal Processing Features

  • Normal Mode Rejection: -3 dB @ 23 Hz, -8 dB @ 60 Hz, -14 dB @ 120 Hz
  • Current Range Support: 0-20 mA with 250 Ω shunt resistor option
  • Power-Off Resistance: 140 kΩ (DC) typical for safety isolation
  • Module Weight: 1.36 kg for compact system integration
  • Diagnostic Indicators: PASS, FAULT, ACTIVE, FIELD status monitoring

Frequently Asked Questions

  • How many input channels does the 3721 have? 32 differential channels
  • What voltage ranges does it support? 0-5 VDC or ±5 VDC ranges
  • What is the update rate? 10 milliseconds for all 32 channels
  • What resolution options are available? Programmable 12-bit or 14-bit
  • Is overvoltage protection included? Yes, 150 VDC continuous protection
🏷️ Tags: Analog Input Module

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