Kongsberg Simrad SU90 Manual page 56

Simrad SU90 Harbour Acceptance Test
horizontal and/or vertical planes. We strongly recommend that you install your
motion reference unit so that all rotation angles can be set to 0 (zero).
The required accuracy of the offset and rotation angles depends on the accuracy
requirements for the echo data.
Tip
The motion sensor offset values are not important for sonar operation. Correct values
for motion sensor rotation are important for roll and pitch compensation.
Procedure
1 Open the
Setup
2 On the menu, select
Setup
Observe that the
of pages selected from the menu on the left side.
3 On the left side of the
Installation Parameters
Observe that a menu opens with access to all the individual pages.
4 Select to open the page.
MRU
a From the vessel drawings, extract the relevant offset information, and insert
those values.
b From the information provided by the personnel installing the motion sensor,
obtain the relevant rotation information.
c Make sure that the correct offset values have been inserted.
d Make sure that the correct installation angles have been inserted.
e Record the information in the result table.
Note
The Kongsberg Seapath
location in the positioning system. If this is done, the MRU offset values in the
SU90 system must be set to 0 (zero) to avoid "dual compensation". The rotation
angles are normally not recorded by the positioning system. These can either be
inserted into the MRU control application, or into the SU90 system. Make sure
that you do not insert them both places.
5 Select to close the dialog box without making any changes.
Cancel
56
menu.
Installation
dialog box opens. This dialog box contains a number
Installation
dialog box, select the small white triangle next to
Installation
.
® - and other GPS systems - allow you to define the MRU
.
409977/C