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Brand Triconex Model 3721 – High-Accuracy Differential Input Module

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SKU: 3721
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Product details

Triconex 3721: High-Performance 32-Channel Analog Input Module

The Triconex 3721 Analog Input Module offers top performance for industrial control. This module handles 32 differential inputs with great accuracy. It works with both voltage and current signals for flexibility. The Triconex 3721 ensures reliable operation in critical applications.

Key Product Features

  • 32 differential inputs for precise signal measurement
  • Dual voltage ranges: 0-5 VDC or -5 to +5 VDC
  • Fast scanning: 10 ms update rate for all channels
  • High resolution: Programmable 12-bit or 14-bit
  • Excellent accuracy: Better than 0.15% FSR (0° to 60°C)
  • Strong protection: 150 VDC/115 VAC continuous overvoltage
  • Superior noise rejection: -85 dB common mode rejection

Technical Specifications

  • Manufacturer: Triconex
  • Model Number: 3721
  • Input Type: 32 differential, DC-coupled
  • Input Impedance: 10 MΩ minimum
  • Common Mode Range: -12V to +12V peak
  • Isolation: 420 kΩ leg-to-leg isolation
  • Weight: 1.36 kg
  • Warranty: 12 months

Shipping & Support

Frequently Asked Questions

  • What is the difference between single-ended and differential inputs?
  • Differential inputs measure voltage between two points. They reject noise better than single-ended inputs.
  • Can the module handle negative voltage signals?
  • Yes, the module accepts signals from -5 VDC to +5 VDC. This allows bipolar measurements.
  • How does the module handle electrical noise?
  • It features -85 dB common mode rejection. This eliminates noise from power lines and motors.
  • What is the purpose of the 250 ohm shunt resistor?
  • The resistor converts 4-20 mA current signals to voltage. This allows current loop measurements.
  • How do I know if the module is working correctly?
  • LED indicators show PASS, FAULT, ACTIVE, and FIELD status. Yellow color helps quick identification.

Learn more from our partner: Ubest Automation Limited

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Original Source: https://www.powergearx.com/

Specifications

  • BrandTriconex
  • Part Number3721
  • ConditionBrand New
  • Warratny12 Months

Additional information

Weight4 kg
Dimensions200 × 100 × 50 mm
Country Of Origin

United States

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