Triconex 3720 TMR Analog Input Module | 64-Point High Density AI

Name: Triconex 3720 TMR Analog Input Module | 64-Point High Density AI
Brand: Triconex
Price: 238 CNY
Availability: InStock

Introduction:

The Triconex 3720 is a high-density Triple Modular Redundant (TMR) Analog Input Module. Designed for critical control applications, it features 64 single-ended input points and supports both voltage and current inputs. With programmable resolution up to 14 bits and high leg-to-leg isolation, the 3720 ensures precise signal acquisition in noisy industrial environments.

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Product Attributes:

Manufacturer: Triconex

Series: Triconex 3720 Series

Part Number: 3720

Type: Analog Input Module

Condition: In Stock

Origin: U.S.A

Shipping Port: Xiamen

Warranty: one year

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Tags: 3720 Triconex Triconex 3720

Description

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The Triconex 3720 is a specialized Triple Modular Redundant (TMR) Analog Input (AI) module. It is engineered to provide high reliability and precision for safety-critical systems. The module is easily identifiable by its Yellow color code.

This module is designed to handle a high density of signals, providing 64 single-ended input points. It supports voltage inputs of 0-5VDC and current inputs of 0-20 mA (using a 250 Ω shunt resistor). This versatility allows it to interface with a wide variety of field sensors and transmitters.

The Triconex 3720 features a fast input update rate of 10 ms. It offers programmable resolution, allowing users to select either 12-bit or 14-bit precision depending on their specific application requirements.

🛡️ Technical Architecture

The module is built with robust isolation features to protect the system from electrical noise and ground loops.

Isolation: The module features isolated points with a typical leg-to-leg isolation resistance of 420 kΩ. This ensures that noise on one channel does not affect others.
Accuracy: It maintains high accuracy of less than 0.15% of Full Scale Range (FSR) across a temperature range of 0° to 60° C.
Protection: The inputs are protected against overrange conditions, capable of withstanding up to 150 VDC or 115 VAC continuously.
Filtering: To ensure signal stability, the module includes normal mode rejection filters, providing -17 dB rejection at 60Hz.

The module includes comprehensive diagnostic indicators, including PASS, FAULT, ACTIVE, and FIELD status LEDs, allowing for easy troubleshooting and maintenance.

📊 Technical Specifications

The Triconex 3720 is built for high-density analog signal processing. Below are the detailed technical parameters for this unit.

Parameter	Specification
Model Number	3720
Manufacturer	Triconex
Type	Analog Input Module (TMR)
No. of Input Points	64, single-ended
Voltage Input	0-5VDC (+ 6%)
Current Input	0-20 mA (with 250 Ω shunt)
Resolution	12 or 14 bits (programmable)
Input Update Rate	10 ms
Accuracy	< 0.15% of FSR (0° to 60° C)
Input Resistance	10 MΩ (DC), min.
Overrange Protection	150 VDC / 115 VAC continuous
Isolation	Isolated Points (420 kΩ leg-to-leg)
Color Code	Yellow

🔧 Installation and Usage

The module is installed in the Tricon chassis. When wiring current inputs, ensure that the 250 Ω shunt resistor is utilized to convert the current signal to a voltage signal that the module can read.

Important Note: The module has a power-off resistance of approximately 140 kΩ. The high input impedance (10 MΩ) ensures minimal loading on the field devices.

📦 Package Contents

When you order this product, we ensure it is packed securely for transit.

1 x Triconex 3720 Analog Input Module
Protective anti-static packaging
Standard manufacturer documentation (if available)

❓ Frequently Asked Questions

Q: How many input points does the Triconex 3720 have?
A: It has 64 single-ended input points.

Q: What types of signals does it accept?
A: It accepts 0-5VDC voltage signals and 0-20 mA current signals (with a shunt resistor).

Q: Is the resolution fixed?
A: No, the resolution is programmable to either 12 bits or 14 bits.

Q: Is the module isolated?
A: Yes, the points are isolated, with a typical leg-to-leg isolation of 420 kΩ.

Q: What is the update rate?
A: The input update rate is 10 ms.
Triconex 3720 Analog Input Module

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