Current Analog Input Module

Get Latest Price

Min. Order:

Contact Now

Product Description

Product Attributes

Model No.: CT-3844

Packaging & Delivery

Download

The file is encrypted. Please fill in the following information to continue accessing it

SPS-C Series IO_20260119_11180739



Product Description

CT-3844 Current Analog Input Module 4AI

Module features

The CT-3844 4-channel thermocouple analog input module by Sichuan Odot is engineered for high-reliability industrial temperature monitoring, directly addressing global challenges such as limited thermocouple type compatibility, noise susceptibility in low-level signals, field surge vulnerability, and poor diagnostics.

It supports 4 independent thermocouple inputs, configurable for 9 standard types, covering the full industrial temperature spectrum from cryogenic to ultra-high heat. Featuring a 24-bit sigma-delta (Σ-Δ) ADC and adjustable filter parameters, it accurately resolves microvolt-level thermoelectric signals while rejecting power-line interference and EMI.

Critical reliability features include magnetic isolation between the internal backplane bus and field inputs—eliminating ground loops—and TVS overvoltage protection on every channel to guard against lightning and switching transients. Four dedicated LED indicators enable real-time channel status visibility for faster troubleshooting.

Proven in European injection molding temperature control, North American lab equipment, and Middle Eastern petrochemical pipeline monitoring, the CT-3844 integrates seamlessly with major PLC/DCS platforms and complies with CE and industrial EMC standards.

As a high-accuracy, high-protection industrial thermocouple input module with built-in cold-junction compensation, the CT-3844 delivers dependable temperature data for global manufacturing, energy, and research applications.

Technical Parameters

Output Parameters
Power	Max.50mA @ 5.0Vdc
Isolation	I/O to internal bus: magnetic isolation (2.5KVrms)
Field power	Not used
Wiring	Max.1.0mm² (AWG 17)
Mounting Type	35 mm Din-Rail
Size	1151475mm
Weight	65g
Environment Specification
Operational Temperature	-35~70℃
Operational Humidity	5%~95% RH(No Condensation)
Protection Class	IP20
Input Parameter
M/S/F:Channel Number	4 channel
LED Indicator	4 Input LED Indicators
M/S:Sensor Type	J / K/ E / T / S / R / B / N type thermocouples
M/S:Acquisition Accuracy	±0.3% Full Scale，@25℃ ±0.5% Full Scale，@-40~70℃
Filter class	Adjustable
Data Format	16-Bit Signed Integer (Integer)

Application scenarios:

FQA

Q:Accuracy?

A:±0.3% full scale @25℃, ±0.5% within -40~70℃.

Q:Supported thermocouples?

A: TC-J / K / E / T / S / R / B / N.

Q:Typical applications?

A: Injection molding temperature control, heating equipment monitoring.

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.