226
442704/A
6
At the bottom of the page, select
Apply
to save your settings.
7
Continue your work in the
Installation
dialog box, or select
OK
to close it.
Related topics
Maintenance procedures, page 186
Inserting the installation parameters, page 215
Inserting the installation parameters for the motion reference unit (MRU), page 221
MRU (Motion Reference Unit) page, page 580
Adjusting the stabilization offsets for the external motion
sensor
The ST90 system is provided with a built-in motion sensor to provide electronic stabilization
of the sonar beams. It is placed inside the Motor Control Unit. For improved operational
accuracy, an external motion reference unit (MRU) can be used. It is very important that the
motion sensor is set correctly with stabilization offset values that are adapted to the physical
installation angles of the hull unit. To align an external motion sensor to the internal sensor,
you may need to adjust the stabilization offset values. This task is only applicable is you are
using an external motion reference unit on your ST90 system.
Prerequisites
Note
Before you do this task you must adjust the installation offset of the motion sensor.
The ST90 system has been set up with its hardware units connected as specified in the
Installation Manual
.
• The external motion sensor is connected to the ST90 system.
• The ST90 system is turned on and operates normally.
• The vessel is berthed.
Note
We recommend that you do this task in calm sea without any vessel movements.
Context
It is very important that the motion sensor is set correctly with stabilization offset values
that are adapted to the physical installation angles of the hull unit. Even a small offset error
can give you very inccurate readings. In many cases a suitable motion sensor is already
Simrad ST90 Reference Manual
Summary of Contents for Simrad ST90
Page 1: ...kongsberg com simrad Simrad ST90 REFERENCE MANUAL ...
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Page 337: ...442704 A 335 Related topics Sonar views page 326 User interface ...
Page 413: ...442704 A 411 Related topics Menu system page 375 Display menu page 384 Menu system ...
Page 631: ...442704 A 629 Related topics Concept descriptions page 626 Concept descriptions ...
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Page 688: ... 2021 Kongsberg Maritime ISBN 978 82 8066 211 8 ...
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Page 690: ...Reference Manual Simrad ST90 ...