6 channel RTD PT1000 Temperature Acquisition Module

The CT-3726 is a high-precision 6-channel PT1000 temperature acquisition module, engineered for multi-point, high-stability thermal monitoring in Industrial Automation. It supports both 2-wire and 3-wire PT1000 RTD sensors, automatically compensating for lead-wire resistance to deliver consistent, drift-free temperature readings over time. 

As a premium industrial RTD input module, it features magnetic isolation between the field inputs and internal communication bus—providing exceptional immunity against electrical noise from VFDs, large motors, or switching transients, thereby eliminating common issues like signal instability or data corruption in electrically harsh environments. 

Equipped with a 15-bit ADC resolution, the module achieves temperature measurement accuracy down to ±0.1°C, making it ideal for demanding applications in new energy, pharmaceutical manufacturing, food processing, and precision industrial equipment. Each of the six analog input channels includes a dedicated LED status indicator, enabling real-time visual diagnostics and streamlined troubleshooting during installation or maintenance. The CT-3726 is widely deployed in lithium battery production lines, cleanroom environmental monitoring systems, heat pump units, smart building energy management platforms, and laboratory instrumentation.

 Designed for DIN-rail mounting and built to industrial standards, this 6-channel PT1000 RTD module serves as a scalable, future-ready foundation for high-density, high-fidelity industrial temperature data acquisition in IIoT and Industry 4.0 ecosystems.

Technical Parameters

General Parameters
Power Consumption	Max.60mA @ 5.0VDC
Isolation	I/O to Internal Bus: Magnetically Isolated (2.5KVrms)
Field Power	Unused
Wiring	Max.: AWG 18
Installation mode	35mm DIN-Rail
Size	115*14*75mm
Weight	65g
Environment Specification
Operating Temperature of Vertical Installation	-35℃~60℃
Operating Temperature of Horizontal Installation	-35℃~70℃
Relative Humidity	< 95%RH(No Condensation)
Storage Temperature	-40℃~85℃
Storage Humidity	< 95%RH(No Condensation)
Manufacturing Test Temperature	-40℃~75℃
Ingress Protection Rating	IP20
Enter the parameters
Channel Number	6 channels
LED Indicator	6 green LED
Resolution	15 bits
Sensor Type	PT1000
Measuring Range	-240~870℃
Measurement Accuracy	0.5℃
Conversion Rate	400ms/6 channels
Diagnostic Function	32766: The sensor is not connected or the wire is disconnected -32766: Short-circuit condition 32765: Chip failure 32767: Temperature overflow -32768: Temperature underflow