Which product model series should I choose?

This depends on your application, requirements and budget.

Here are some general guidelines. We are happy to help you in finding the right MRU type.

The 3000 series, with 0.05° accuracy in Roll & Pitch, is ideal for Most monitoring applications where the main purpose is to collect motion data for analysis or decision making, such as helideck monitoring systems. Some instrument compensation applications such as wave radars and wind lidar buoys. Active heave control (AHC) for winches on smaller vessels with short lever arms to the remote monitoring points

The 6000 series, with 0.02° accuracy in Roll & Pitch, is our most versatile MRU due to its high accuracy and is suitable for most applications. This is the recommended MRU for most control applications such as AHC and winch control.

The 9000 series, with 0.01° accuracy in Roll & Pitch is our most accurate MRU. We recommend this MRU for sensor compensation applications such as hydrography, and for advanced control applications such as 3D motion compensated gangways.

Which series should I choose?

The 3000 series, with 0.05° accuracy in Roll & Pitch, is ideal for:

Most monitoring applications where the main purpose is to collect motion data for analysis or decision making, such as helideck monitoring systems.
Some instrument compensation applications such as wave radars and wind lidar buoys.
Active heave control (AHC) for winches on smaller vessels with short lever arms to the remote monitoring points

Which series should I choose

3000

The 3000 series, with 0.05° accuracy in Roll & Pitch, is ideal for

Most monitoring applications where the main purpose is to collect motion data for analysis or decision making, such as helideck monitoring systems.
Some instrument compensation applications such as wave radars and wind lidar buoys.
Active heave control (AHC) for winches on smaller vessels with short lever arms to the remote monitoring points

MRU 6000 series

MRU 9000 series

MRU 3000 Series

The 3000 series, with 0.05° accuracy in Roll & Pitch, is ideal for

Most monitoring applications where the main purpose is to collect motion data for analysis or decision making, such as helideck monitoring systems.
Some instrument compensation applications such as wave radars and wind lidar buoys.
Active heave control (AHC) for winches on smaller vessels with short lever arms to the remote monitoring points

MRU 6000 series

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MRU 9000 series

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Which applications can the 3000 series be used for?

Here are some general guidelines.

The 3000 series, with 0.05° accuracy in Roll & Pitch, is ideal for

Most monitoring applications where the main purpose is to collect motion data for analysis or decision making, such as helideck monitoring systems.
Some instrument compensation applications such as wave radars and wind lidar buoys.
Active heave control (AHC) for winches on smaller vessels with short lever arms to the remote monitoring points

Specifications - Compare products section

description

Description

Roll & Pitch0.05 degrees RMS (dynamic & static)
Heave5 cm Whichever is greater for 0 to 25 s periods, valid for irregular motions in real sea conditions
Heading0.5 degrees

Description

Roll & Pitch0.05 degrees
Heave5 cm

Description

Roll & Pitch0.05 degrees
Heave5 cm

Specifications

MRU series

Performance

Roll & Pitch

0.05° (3000 series) / 0.02° (6000 series) / 0.01° (9000 series)
RMS (dynamic & static)

Heave (real-time)

5.0 cm or 5.0 %
Whichever is greater for 0 to 25 s periods, valid for irregular motions in real sea conditions

Heading (optional)

± 0.5 °Magnetic heading

Specifications

Valid for 3000, 6000 and 9000 series

Product description

MRU 3000/6000/9000 series specifications

Relevant applications

Ship Motion Monitoring

Precise motion measurements are essential for vessel digitalisation, supporting fuel optimisation, route planning, cargo safety and structural health.

Wave Radar

Accurate heave measurements play a vital role in compensating for Wave Radar measurements when installed on ships or other floating vessels.

Helideck Monitoring

Accurate measurement of roll, pitch, and heave motions is crucial for assessing the safety of helidecks during helicopter landing and take-off operations.

Dynamic Positioning

Dynamic positioning (DP) of vessels necessitates roll and pitch compensation of the GNSS antenna to ensure accurate positioning of the ship's control point.

Offshore Fish Farms

Offshore fish farming presents unique challenges, requiring continuous remote monitoring of all onboard systems, including roll, pitch, and heave motions.

Wind Lidar Buoys

Metocean buoys, lidar buoys, and other instrument/sensor carrying buoys, need reliable motion measurements to motion compensate pay load sensors, or to collect motion data for post processing.

Our high accuracy, compact and affordable Motion Reference Units

MRU Compact

Usage area

IP 65

Heave accuracy

5 cm or 5.0%

Roll & Pitch accuracy

3000±0.05°

MRU Marine

MRU Subsea

MRU Ex

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Which product model series should I choose?

Which series should I choose?

Which series should I choose