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

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

Range

Rotation speed

± 150 °/s (3000 series) / ± 450 °/s (6000 series) / ± 450 °/s (9000 series)

Acceleration

± 3 g (3000 series) / ± 4 g (6000 series) / ± 10 g (9000 series)

Heave

± 50 m

Roll / Pitch / Yaw

± 180 ° / ± 90 ° / ± 360 °
(no limits)

Output frequency

0 - 100 Hz
(adjustable output frequencies)

Gyro output

Scale factor error

0.2 % max/min

Angular rate noise

0.050 °/s RMS (3000 series) / 0.025 °/s RMS (6000 series) / 0.015 °/s RMS (9000 series)

Acceleration output

Acceleration noise

0.0025 m/s2 RMS (3000 series) / 0.0020 m/s2 RMS (3000 series) / 0.0015 m/s2 RMS (9000 series)

Acceleration accuracy

0.01 m/s2 RMS

Power & Interface

Power consumption

6 W

Supply voltage

9 - 36 V DC (24 V nominal)

Internal storage

32 GB

Data protocols

Custom NMEA, ASCII and Binary, Atlas, Gyrocompas 1, Ifremer Victor, MDL, NORSUB 1-8, Simrad EM 3000, SMCA, SMCC, Tokimek PTVG, RDI ADCP, TSS1 and many more.

Configuration protocols

GET/SET through telnet, serial port and MRU configurator

Time synchronization

Sync to host PC, Sync to NTP server, Sync to PPS

Features

PPS

PPS time synchronization

Aiding

Heading and velocity aiding
(on request)

Environmental specifications

Electromagnetic compatibility

IEC 60945/EN 60945
(immunity/emission)