Description
Kongsberg Seatex MRU‑D (MRU‑M‑MB1)‑ Marine Motion Reference Unit
Product Overview
The Kongsberg Seatex MRU‑D with mounting bracket MRU‑M‑MB1 is a fifth‑generation marine motion reference unit engineered for high‑precision roll and pitch attitude measurement on seagoing vessels. Built‑in advanced inertial sensor array efficiently suppresses horizontal acceleration interference even when installed away from vessel center‑of‑gravity, delivering stable attitude outputs independent of vessel dynamic movement. Equipped with multiple communication interfaces and configurable output data formats, it seamlessly feeds motion data to dynamic positioning, echo‑sounder, sonar, antenna stabilization and voyage recording systems. Supplied with factory calibration certificate, solid‑state mechanical‑free design ensures zero scheduled maintenance and long service life in harsh salt‑fog marine environments. The matched MRU‑M‑MB1 is the dedicated heavy‑duty marine mounting bracket for firm deck‑level installation of MRU‑D sensor unit.
Technical Specifications
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Brand: Kongsberg Seatex
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Model:MRU‑D (Mounting Bracket: MRU‑M‑MB1)
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Warranty: One Year
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Condition: 100% New & Original
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Product Type: Marine Motion Reference Unit (MRU) with dedicated mounting bracket
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Measured Parameters: High‑accuracy roll, pitch attitude measurement, angular rate output
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Attitude Accuracy: 0.35° roll & pitch dynamic accuracy, optimized for marine vessel motion scenarios
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Data Output Rate: Up to 200 Hz high‑speed data sampling and transmission
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Communication Interfaces: RS‑232, RS‑422 serial ports and Ethernet interface; supports NMEA‑0183 and proprietary protocol formats
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Power Supply: 12‑30 VDC wide‑range marine DC power input, low power consumption
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Housing & Bracket: Corrosion‑resistant marine‑grade aluminum housing; MRU‑M‑MB1 heavy‑duty anti‑vibration mounting bracket for deck installation
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Protection Rating: IP67 sealed enclosure, salt‑spray and moisture resistant for marine environments
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Operating Temperature: ‑20 °C ~ +60 °C, suitable for ship deck and cabinet installation
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Certification: Factory calibration certificate included, compliant with IEC 60945 marine equipment standards
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System Compatibility: Compatible with vessel DP systems, hydrographic echo‑sounders, sonar and antenna stabilization control systems
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Operational Stability: Solid‑state sensor without wearing parts, supporting 7×24‑hour continuous marine operation
Application Scenarios
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Vessel Dynamic Positioning & Voyage Monitoring: The MRU‑D with MRU‑M‑MB1 bracket provides real‑time roll‑pitch attitude data for dynamic positioning systems and voyage data recorders. It compensates vessel attitude deviation caused by wave motion, supporting stable positioning and reliable voyage data logging for offshore working vessels and ocean‑going ships.
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Hydrographic Survey & Sonar Systems: Widely deployed on survey vessels for multi‑beam echo‑sounders and hydrographic sonar equipment. High‑rate accurate attitude data corrects measurement deviation induced by vessel rolling‑pitching motion, guaranteeing the precision of underwater topographic survey and hydrographic mapping tasks.
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Marine Equipment Retrofit & Stabilization Upgrade: Ideal for renovation and expansion projects of legacy marine automation systems. The MRU‑M‑MB1 dedicated mounting bracket simplifies field installation and anti‑vibration fixation. It delivers reliable motion reference data for satellite antenna stabilization and other marine attitude‑dependent equipment, lowering long‑term maintenance workload for ship‑borne systems.
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