MRU-D Kongsberg DCS motion reference unit

• Brand
  Kongsberg
• Model
  MRU-D
• Product Name
  Motion Reference Unit MRU-D
• Country of Origin
  Trondheim, Norway
• HS Code
  85423190
• Dimensions
  105 mm×140 mm (4.134 inch×5.525 inch)
• Weight
  1.9 kg
• Operating Temperature
  -5℃ ~ +55℃
• Storage Temperature
  -25℃ ~ +70℃
• Power Supply
  10 ~ 36 VDC
• Warranty
  12 month
• Product Status
  New and original

Kongsberg MRU-D Product Specification Document

Input Voltage: 10 ~ 36 VDC wide-range DC power supply

1.Typical Power Consumption: 7.2 W; Max Power Consumption: 8 W

2.External Synchronization Input: Support 1PPS TTL pulse input for time synchronization

3.Working Temperature Range: -5℃ ~ +55℃

4.Storage Temperature Range: -25℃ ~ +70℃

5.Protection Class: IP66, complies with IEC 60945 marine standard

Signal Output Parameter

1.Main Output Data: Real-time Roll & Pitch attitude data

2.Roll/Pitch Static RMS Accuracy: 0.2°

3.Roll/Pitch Dynamic 1-sigma Accuracy (±5° amplitude swing): 0.15°; Comprehensive dynamic accuracy: 0.35°

4.Angular Measurement Resolution: 0.001°

5.Angular Range: ±45° for Roll & Pitch

6.Max Data Output Rate: 200 Hz

7.Output Interfaces: RS-232, RS-422, Ethernet UDP/IP (10/100 Mbps)

8.Communication Protocols: NMEA 0183, proprietary MRU data sentence, IEEE 32-bit floating 9.point/integer data format

10.Output Delay: Less than 1 ms

11.Connector Model: Souriau 851-36RG 16-26S50

Core Product Functions

1. Continuous real-time roll and pitch attitude angle measurement for marine vessels

2. Suppress surge/sway horizontal acceleration interference to guarantee attitude data authenticity

3. Multi-channel synchronous data output, realizing multi-equipment signal sharing onboard

4. Support external time synchronization to realize high-precision data timestamp matching

5. Provide raw inertial sensor data (angular rate, linear acceleration) for secondary system calculation

6. Self-diagnosis of internal sensor status during operation

Product Advantages

1. Cost-effective two-axis MRU solution for medium-precision marine attitude measurement

2. Compact and lightweight design, flexible onboard installation, no strict CG position limitation

3. Zero scheduled maintenance, ultra-long service life up to 100,000 hours

4. Wide DC power input range, strong adaptability for marine power supply fluctuation

5. Rich standard communication interfaces, seamless docking with mainstream marine control & survey systems

6. No export license restriction for global delivery; 2-year official global warranty

7. Excellent environmental reliability, adapt to offshore, coastal and inland harsh marine working conditions

Typical Application Cases

1. Dynamic Positioning (DP) auxiliary attitude data acquisition for commercial cargo vessels and workboats

2. Motion compensation for marine ADCP current measuring equipment, multi-beam echo sounder and hydrographic survey devices

3. Stabilization control for ship satellite communication antenna and radar attitude compensation

4. Vessel voyage attitude recording, marine operation status monitoring and ship automation system signal feedback

5. Attitude reference for fishing sonar and underwater acoustic detection equipment on fishing vessels

6. Offshore auxiliary engineering vessels, scientific research vessels and coastal patrol ship attitude monitoring

Core Product Characteristics

1. Adopt full solid-state MEMS gyroscope and accelerometer, no mechanical moving parts, strong anti-vibration and anti-shock performance

2. Built-in horizontal acceleration suppression algorithm, effectively eliminate measurement error caused by off-center-of-gravity installation

3. High dynamic response performance with 200 Hz high-frequency data updating

4. Complete marine environmental protection design, salt fog resistance, vibration resistance and electromagnetic interference resistance

5. Full digital signal processing, stable long-term drift performance

6. Windows-based dedicated MRU configuration software for protocol and parameter flexible setting

7. Each unit delivered with official factory calibration certificate

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  MRU-D datasheet
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