4 channel TC thermocouple temperature acquisition module

4 channel TC thermocouple temperature acquisition module

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Product Description

Product Attributes

Model No.: CT-3834

Packaging & Delivery

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Product Description

CT-3834 4-channel TC thermocouple temperature acquisition module

Module feature

The CT-3834 is a high-precision 4-channel thermocouple (TC) temperature acquisition module, supporting 8 standard thermocouple types—including K, J, T, E, N, R, S, and B—for accurate temperature measurement across an ultra-wide range from sub-zero to up to 1800°C.

Designed as a robust industrial thermocouple input module, it features a 24-bit sigma-delta (Σ-Δ) ADC and adjustable digital filter parameters, enabling microvolt-level signal resolution and exceptional noise immunity in electrically harsh environments such as steel mills, glass furnaces, and heat treatment lines. Each input channel is galvanically isolated and equipped with TVS (Transient Voltage Suppression) overvoltage protection, safeguarding the module against voltage spikes from lightning, inductive loads, or wiring faults—significantly enhancing system reliability and longevity.

The CT-3834 includes built-in cold junction compensation, eliminating the need for external hardware and reducing panel space and cost. With its high integration and rugged design, this multi-channel TC acquisition module is widely deployed in metal smelting monitoring, ceramic sintering control, boiler safety interlocks, aerospace test benches, and industrial energy management systems.

Ideal for DIN-rail mounting in PLC or DCS cabinets, the CT-3834 delivers a secure, scalable, and future-ready solution for high-accuracy thermocouple temperature data acquisition in demanding automation and IIoT applications.

Technical parameters

General parameters
Power	Max.170mA @ 5.0VDC
Isolation	The isolation voltage between channel and system power is AC500V The isolation voltage between channel and field power is AC500V The isolation voltage between channel and PE is AC500V The isolation voltage between channels is AC500V
Field power	Not used
Wiring	Max.1.0mm² (AWG 18) Max.0.2mm² (AWG 24)
Installation	35mm DIN-Rail
Size	1151475mm
Weight	60g
Environment parameter
Operating Temperature of Vertical Installation	-35℃~60℃
Operating Temperature of Horizontal Installation	-35℃~70℃
Relative Humidity	5~95%RH (No Condensation)
Storage Temperature	-40℃~85℃
Storage Humidity	5~95%RH (No Condensation)
Manufacture Test Temperature	-40℃~75℃
Ingress Protection Rating	IP20
Input parameter
Channel Number	4 Channels
Indicator	4 input indicators
Sensor Type	J / K/ E / T / S / R / B / N type thermocouples
Acquisition Accuracy	±0.3% Full Scale，@25℃ ±0.5% Full Scale，@-35~70℃
Sampling Rate	10ms per channel
Filter Class	Adjustable
J Type	-210~1200℃
K Type	-270~1370℃
E Type	-270~1000℃
T Type	-270~400℃
S Type	-50~1760℃
R Type	-50~1760℃
B Type	100~1820℃
N Type	-270~1300℃
Data Format	16-Bit Signed Integer (Integer)
Diagnostic Function	-32767: No thermocouple model selected (that is, the channel is disabled) 32766：open circuit disconnection 32767：Temperature overflow -32768：Temperature underflow 32765: The ADC chip fault 32764: Cold-junction compensation transform fault value

Application scenarios:

FQA

Q：What thermocouple types does CT-3834 support?

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

Q：Channel isolation?

A: Supports channel-to-channel isolation.

Q:Applications?

A: High-temperature furnace control, plastic processing, heat treatment.

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.