Analog Current Input Module 8AI

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Product Description

Product Attributes

Model No.: DT-3238

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Sichuan ODOT Automation System Co.,Ltd

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Product Description

DT-3238 Analog Current Input Module 8AI

Industrial users often struggle with analog signal noise, incompatible voltage ranges, wasted I/O channels, complex commissioning, and inflexible system expansion. The DT-3238 8-Channel Analog Voltage Input Module from Sichuan Odot Automation directly addresses these pain points. Supporting 0–5VDC, 0–10VDC, ±5VDC, and ±10VDC input ranges with 16-bit resolution, it captures subtle signal variations accurately—ideal for temperature transmitters, pressure sensors, servo feedback, and energy monitoring systems. Its single-ended common-ground architecture simplifies wiring, while per-channel LED indicators and user-configurable filter times enhance noise immunity and data reliability. Crucially, each channel can be independently disabled, eliminating resource waste and reducing unnecessary power consumption. Built on a high-speed redundant backplane bus with pluggable terminal blocks, the DT-3238 enables rapid installation, hot-swappable maintenance, and minimal downtime. As a key I/O building block in the ODOT open automation ecosystem, it delivers unmatched flexibility, robustness, and ease of integration—empowering smarter, more scalable, and future-ready industrial data acquisition.

Technical Parameters

General Parameters
Current Consumption	52mA@5VDC
Wirring Diameter	Min.0.2mm²(AWG24) Max.1.5mm²(AWG16)
Terminal Pluggable	Support
Backplane Bus	Double bus redundancy
Installation	35mm DIN-Rail
Dimension	1191480mm
Product Certification	CE Certification

Input Parameters
Channel Number	8 channels voltage input
Input Range	0~20mA/4~20mA
Resolution	16 bits (include the symbol bit)
Transition Time	8ms/8 channels (the filter level is 0)
Input Impedance	≤300Ω
Linearity Error	≤±0.01%
Temperature Error	≤±0.005%/K
Repeatability	≤±0.05% (@25℃)
Measurement Error	≤±0.2% (@25℃), ≤±0.4% (@-35℃~60℃)
Module Diagnosis	ADC Fault: support Break line detection: support Overflow/Underflow: support

Environment parameters
Horizontal Installation Operating Temperature	-35℃~60℃
Vertical Installation Operating Temperature	-35℃~50℃
Storage Temperature	-40℃~85℃
Environment Humidity	5%~95%RH (No condensation)
Installation Altitude	<2000m
Pollution Degree	Ⅱ
Protection Grade	IP20
Mechanical Properties	Comply with IEC60068-2-6, IEC6008-2-27
Insulation Withstand	Comply with IEC61131-2
EMC Performance	Comply with IEC61131-2, IEC61000-4 (ESD: Contact discharge ±6kV, Performance level A; Air discharge±8kV, Performance level A SURGE: Common mode ±2kV, Performance level A EFT: ±2kV, Performance level A)

Application scenarios:

FQA

Q：What voltage input ranges does the DT-3238 support, and what is its resolution?

A：The DT-3238 supports 8 channels of single-ended voltage input with selectable ranges: 0~5VDC, 0~10VDC, ±5VDC, and ±10VDC. Each channel provides high-precision 16-bit analog-to-digital conversion.

Q：Can individual channels be configured or disabled, and is signal filtering adjustable?

A：Yes. Each of the 8 channels can be independently enabled or disabled based on application needs. Additionally, the module allows users to set the filter time per channel to reduce noise and improve signal stability in industrial environments.

Q：What hardware features enhance usability and system reliability for the DT-3238?

A：The module includes an LED indicator for each analog input channel for real-time status monitoring. It also features a high-speed redundant backplane bus and pluggable terminal blocks, enabling easy installation, maintenance, and robust communication within the I/O system.

Certifications & Quality Assurance:

ODOT Products comply with international industrial standards, including CE and RoHS, and undergo strict quality control to ensure long-term reliable operation in industrial environments.