Analog Current Output Module 4AO

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Product Description

Product Attributes

Model No.: DT-4234

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Product Description

DT-4234 Analog Current Output Module 4AO

Module Features

The DT-4234 4-channel analog current output module by Sichuan Odot is engineered for industrial applications demanding high-precision, noise-immune 4–20mA or 0–20mA signal transmission. It delivers 4 independent current output channels, each configurable for 0–20mA or 4–20mA ranges—ideal for driving control valves, remote indicators, transmitter simulators, and other field devices. A key differentiator is its capacitive isolation between the internal backplane bus and field outputs, which eliminates ground loops and ensures signal integrity even in electrically noisy environments (e.g., near VFDs or high-voltage machinery). Outputs use a single-ended, common-ground architecture, ensuring broad compatibility with standard industrial receivers and simplifying integration. Built on a high-speed redundant backplane bus, the module supports rapid data refresh for responsive closed-loop control, while pluggable terminal blocks enable tool-free wiring and hot-swappable maintenance—minimizing production downtime. The DT-4234 has been successfully deployed in European chemical process plants, North American water treatment dosing systems, and Southeast Asian food & beverage filling lines, and integrates seamlessly with Siemens, Rockwell, and other major PLC platforms. Compliant with CE and industrial EMC standards, it stands out as a high-isolation, 16-bit precision current output module that delivers reliable, maintenance-friendly analog control for global automation integrators.

Technical Parameters

General Parameters
Current Consumption	35mA@5VDC
Field Power	19.2~28.8VDC (Nominal: 24VDC)
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
Output Parameters
Channel Number	8 channels current output
Resolution	16 bits
Output Range	0~20mA/4~20mA
Transition Time	1ms/4 channels (the filter level is 0)
Input Impedance	Max.500Ω
Linearity Error	≤±0.03%
Temperature Error	≤±0.005%/K
Repeatability	≤±0.05%
Measurement Error	±0.2% (@25℃), ±0.4% (@-35℃~60℃)
Diagnosis	24V power fault: support Line fault: support DAC communication fault: 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 output ranges and resolution does the DT-4234 module support?

A：The DT-4234 offers 4 analog current output channels, each configurable as either 0–20 mA or 4–20 mA, with 16-bit resolution—meeting industrial standard signal requirements and high-precision control needs.

Q：What electrical isolation and safety features does the DT-4234 incorporate?

A：The module uses capacitive isolation to provide reliable electrical separation between the internal bus and field outputs, effectively preventing ground loops and high-voltage transients from compromising system safety and stability.

Q：Is the DT-4234 easy to install and maintain?

A：Yes. Built on a high-speed redundant backplane bus, it features pluggable spring-clamp terminals (supporting wire sizes from 0.2 to 1.5 mm² / AWG 24–16), enabling rapid wiring and tool-free replacement for efficient installation and maintenance.

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.