Analog Current Input Module 4AI

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Product Description

Product Attributes

Model No.: DT-3434

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Product Description

DT-3434 Analog Current Input Module 4AI

In process automation, users often face challenges like channel crosstalk, inflexible range switching, and difficult troubleshooting—leading to downtime and inefficiency.

The DT-3434 Analog Current Input Module from Sichuan Odot Automation is engineered to solve these issues. Featuring 4 independently isolated channels for 0–20mA or 4–20mA current input with 16-bit resolution, it delivers precise acquisition of low-level signals from remote transmitters—ideal for water/wastewater treatment, chemical processing, boiler control, HVAC, and energy monitoring systems. Its channel-to-channel isolation eliminates ground loops and crosstalk, ensuring signal integrity in electrically noisy environments. Each channel includes a dedicated LED indicator for instant visual diagnostics, speeding up commissioning and maintenance. Compatible with standard industrial current loops, the module requires no extra configuration for most sensors. Built on a high-speed redundant backplane bus with pluggable terminal blocks, the DT-3434 supports tool-free installation and hot-swappable servicing—minimizing operational disruption. As a key I/O component of the ODOT open automation platform, it offers robust, scalable, and service-friendly analog data acquisition for mission-critical industrial applications.

Technical Parameters

General Parameters
Current Consumption	200mA@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	4 channels voltage input
Input Range	0~20mA/4~20mA
Resolution	16 bits (include the symbol bit)
Transition Time	2ms/4 channels (the filter level is 0)
Input Impedance	120kΩ
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 current input ranges does the DT-3434 support, and what is its resolution?

A: The DT-3434 supports 4 channels of current signal input with selectable ranges of 0–20mA or 4–20mA, each featuring high-resolution 16-bit analog-to-digital conversion for precise measurement.

Q：Are the input channels electrically isolated from each other?

A: Yes. Each of the four analog input channels is galvanically isolated from the others, preventing ground loops and enhancing system reliability in industrial environments with varying field potentials.

Q:What user-friendly and system-level features does the DT-3434 offer?

A: The module includes an LED indicator for each of the 4 input channels for real-time status visibility. It also integrates a high-speed redundant backplane bus and pluggable terminal blocks, enabling quick installation, easy maintenance, and stable communication within the remote 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.