The Kongsberg RAI-10TC is a specialized remote analog input module designed for high-precision temperature monitoring in marine and offshore automation systems. This module is a core component of the Kongsberg K-Chief and AutoChief C20 series, specifically optimized for handling Thermocouple (TC) inputs. By digitizing sensor signals close to the source, the RAI-10TC reduces electrical noise interference and simplifies cabling architecture across the vessel. Its rugged design ensures stable performance under the high-vibration and high-temperature conditions typically found in engine rooms and industrial machinery spaces.

 

Technical Datasheet

Model Number: RAI-10TC Product Series: Remote I/O (RIO) System Dimensions: 160mm x 120mm x 55mm Weight: 0.80 kg Country of Origin: Norway Input Channels: 10 Isolated Analog Input Channels Input Type: Thermocouples (Type J, K, T, E, N, R, S, B) Supply Voltage: 24V DC (nominal) Communication: Redundant CAN-Bus interface Resolution: 16-bit A/D Conversion

 

Application Fields

The RAI-10TC is primarily used for critical temperature monitoring tasks where accuracy and signal integrity are paramount:

• Exhaust gas temperature monitoring for large marine diesel engines.
• Bearing and cylinder liner temperature sensing.
• Boiler and incinerator thermal management.
• Cargo tank temperature monitoring on LNG and chemical tankers.
• Industrial process control in offshore oil and gas platforms.

Product Instructions

1. Mounting: The module is designed for DIN-rail mounting within a junction box or local control panel. Ensure adequate clearance for airflow to prevent overheating of the internal electronics.
2. Thermocouple Connection: Use appropriate compensation cables for the specific thermocouple type being used. Ensure polarity is correct at the terminal block to avoid significant temperature measurement errors.
3. Network Integration: Connect the module to the dual CAN-bus backbone of the Kongsberg automation system. Each module on the bus must be assigned a unique node address using the onboard DIP switches or software configuration.
4. Shielding: To ensure 16-bit precision, all sensor cables should be shielded. The shields should be terminated at the designated ground rail within the cabinet to minimize electromagnetic interference.

 

Q&A – Frequently Asked Questions

Q: Can I mix different types of thermocouples on the same RAI-10TC module? A: Yes, the module is software-configurable, allowing different thermocouple types to be assigned to individual channels, provided the configuration is correctly mapped in the K-Chief system.

Q: Does the module provide “Cold Junction Compensation”? A: Yes, the RAI-10TC includes high-accuracy internal cold junction compensation to ensure precise temperature readings regardless of the ambient temperature at the module’s location.

Q: What is the benefit of using the RAI-10TC over a standard analog input module? A: The RAI-10TC is specifically engineered for low-voltage thermocouple signals, providing superior galvanic isolation and noise filtering that standard 4-20mA modules cannot offer.

 

Recommended Similar Models

• Kongsberg RAI-10 (Standard 10-channel Remote Analog Input Module)
• Kongsberg RDI-32 (32-channel Remote Digital Input Module)
• Kongsberg RDO-16 (16-channel Remote Digital Output Module)
• Kongsberg RPT-10 (Remote PT100 Resistance Temperature Module)
• Kongsberg RIO-G2 (General Purpose Remote I/O Controller)