Introduction to Kongsberg MRU-D
MRU-D Product Introduction
Kongsberg MRU-D is a high-precision Motion Reference Unit (MRU) tailored for marine and offshore applications, delivering real-time, accurate vessel motion data. As a core component of Kongsberg Maritime’s navigation and automation systems, it leverages advanced MEMS sensor technology and sophisticated signal processing algorithms to precisely measure critical motion parameters: heave, roll, pitch, and heading. This module acts as a vital data provider for key marine systems, including dynamic positioning (DP) systems, autopilot, marine simulators, and offshore operation monitoring platforms. It enables precise control and safe operation of vessels and offshore platforms, even in harsh marine environments—characterized by extreme temperatures, high humidity, vibration, and electromagnetic interference—thanks to its rugged industrial-grade construction. With compact dimensions and flexible installation options, it integrates seamlessly into diverse vessels, from small workboats to large offshore platforms.
MRU-D Technical Specifications
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Product Model: MRU-D
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Product Type: Motion Reference Unit (MRU) (Kongsberg Maritime Navigation Series)
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Core Functions: Real-time measurement of heave, roll, pitch and heading; High-precision motion data processing; Data output for DP and autopilot systems; Built-in self-diagnosis; Vibration and shock compensation; Gyro-stabilized motion sensing
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Connection & Installation: Compatible with Kongsberg K-Chief automation systems; Supports Ethernet, RS-422, RS-485 interfaces; Multiple mounting orientations (horizontal/vertical); Compact design for space-constrained areas; Easy software calibration
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Electrical Specifications: Power Supply: 12-30VDC; Output Data Rate: Up to 100Hz; Roll/Pitch Range: ±90°; Roll/Pitch Accuracy: ±0.1°; Heading Range: 0-360°; Heading Accuracy: ±0.1° (with GPS aiding); Communication Protocols: NMEA 0183, Kongsberg proprietary; Power Consumption: Max 15W; Certifications: CE, IEC 60945 marine certification
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Environmental Ratings: Operating Temperature: -20°C to 60°C; Storage Temperature: -40°C to 85°C; Relative Humidity: 5% – 95% (non-condensing); Shock Resistance: 100g (1ms); Vibration Resistance: 10g (10-2000Hz); Protection Rating: IP67
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Mechanical Details: Housing Material: Corrosion-resistant marine-grade aluminum; Dimensions: 180mm × 150mm × 85mm; Weight: Approximately 1.8kg
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Seapath 400: Subsea motion and position reference system for ROV operations
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DP-100: Dynamic positioning control module compatible with MRU series
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AutoMate 500: Advanced autopilot system integrated with motion data input
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NaviPilot 4000: Integrated navigation and autopilot system with MRU data fusion
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K-Chief 700 MRU Interface: Dedicated interface for MRU integration into K-Chief systems
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