3721 Triconex | Analog Input Module - 32-Channel

Triconex 3721 Analog Input Module: High-Density Signal Acquisition

The Triconex 3721 Analog Input Module delivers reliable and high-performance data acquisition for your control system. This versatile module from the trusted manufacturer Triconex handles a wide range of voltage signals with superior accuracy. It provides 32 differential input points, making it ideal for applications requiring dense signal monitoring. You can configure the Triconex 3721 for either 0 to 5 VDC or -5 to +5 VDC input ranges, offering great flexibility.

Key Technical Specifications

• The Triconex 3721 accepts 32 differential, DC-coupled inputs.
• It supports two voltage ranges: 0 to 5 VDC or -5 to +5 VDC.
• The module provides a fast 10 ms update rate for all channels.
• You can program its resolution for either 12 bits or 14 bits.
• It maintains an accuracy of < 0.15% of Full Scale Range from 0° to 60° C.
• The module offers excellent common mode rejection of -85 dB from DC to 100 Hz.

Advanced Performance and Protection

• This module provides robust input overrange protection up to 150 VDC/115 VAC continuous.
• It also supports 0-20 mA current signals when used with a 250 Ω shunt resistor.
• The high input resistance of 10 MΩ (min) minimizes the load on your signal source.
• It features effective normal mode rejection, with -8 dB at 60 Hz to reduce noise interference.
• Clear diagnostic LEDs indicate module status like PASS, FAULT, ACTIVE, and FIELD.

Installation and Packaging

• The module is designed for straightforward integration into a Triconex safety system.
• Please ensure you follow all manufacturer guidelines for proper installation.
• Our standard packaging ensures your product arrives safely and securely.
• We ship all orders via reliable couriers such as FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

• What input types does the 3721 module support? It supports both voltage inputs (0-5VDC, -5 to +5VDC) and current inputs (0-20mA with a resistor).
• How many input points does the module have? The Triconex 3721 provides a high density of 32 fully differential input channels.
• Is the module isolated? Yes, it features channel-to-channel isolation for improved signal integrity and noise immunity.