The Auto-Maskin DCU 305 A R2 is a robust and highly reliable engine control and monitoring unit designed for the marine and industrial markets. As part of the Marine Pro series, this controller offers comprehensive instrumentation, safety, and control functions for diesel engines. It is engineered to withstand harsh environments while providing precise data acquisition and control interfaces, ensuring optimal engine performance and protection.
Product Specifications
| Feature | Specification |
| Model | DCU 305 A R2 |
| Dimensions | 144 mm x 144 mm x 75 mm (approximate panel cutout size) |
| Weight | Approximately 0.8 kg |
| Origin | Norway |
| Communication | Modbus RTU (RS485) |
| Display | High-resolution graphic LCD with backlight |
| Protection | IP65 (front panel) |
Application Areas
The DCU 305 A R2 is primarily utilized in marine applications, including main propulsion engines and auxiliary generator sets. It is also well-suited for industrial power generation and pump systems where automated engine management and alarm handling are critical. Its modular design allows it to integrate seamlessly into existing bridge or engine room control systems.
Product Usage Guide
To operate the DCU 305 A R2, ensure that the controller is properly wired to the engine’s sensors and the CAN bus/Modbus communication line. Upon power-up, the unit performs a self-test sequence. Use the front-panel navigation buttons to scroll through engine parameters such as oil pressure, coolant temperature, and RPM. The “Alarm” interface allows users to acknowledge active faults, while the “Settings” menu (typically protected by a passcode) allows for the configuration of setpoints, communication addresses, and sensor scaling. Regular calibration of analog sensors via the menu is recommended to maintain measurement accuracy.
Frequently Asked Questions (Q&A)
What should I do if a communication error occurs? First, check the RS485 wiring integrity and ensure that the Modbus address is correctly configured in the settings menu. Is this unit compatible with non-electronic engines? Yes, the DCU 305 A R2 is designed to handle both mechanical and electronic engines by utilizing dedicated analog and digital inputs for legacy sensors. How can I update the firmware? Firmware updates are performed via the integrated service port using specialized Auto-Maskin configuration software. Can the display be read in direct sunlight? Yes, the unit utilizes a high-contrast industrial-grade LCD display specifically chosen for visibility in various lighting conditions. What does the “R2” designation signify? The R2 version represents an optimized hardware revision with improved processing speed and expanded input/output flexibility compared to the original DCU 305.
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