Kongsberg Simrad EK80 Installation Manual page 210

Simrad EK80 Installation Manual
Note
These settings are intended for the installation of an ADCP transceiver for current
profiling. The information is not used to adjust for installation misalignments, but
will be included in the RAW files for post-processing purposes.
Use the centre of the transducer face as reference, and define the offset values
related to the Ship Origin.
a Select the offset value on the X axis (fore-and-aft direction) from the Ship
Origin. Adjust with a positive value for X if the transducer is located ahead
of the ship origin.
b Select the offset value on the Y axis (athwartship) from the Ship Origin.
Adjust with a positive value for Y if the transducer is located on the starboard
side of the ship origin.
c Select the offset value on the Z axis (vertical) from the Ship Origin. Adjust
with a positive value for Z if the transducer is located under the ship origin.
10 If relevant for your transducer installation, provide the rotation angles.
Note
These settings are intended for the installation of an ADCP transceiver for current
profiling. The information is not used to adjust for installation misalignments, but
will be included in the RAW files for post-processing purposes.
a Obtain the rotation (angle) information from the personnel that installed the
transducer.
b Insert the values.
• Specify an angle (in degrees) to compensate for any deviation from the X
axis (fore-and-aft direction) in the coordinate system.
• Specify an angle (in degrees) to compensate for any deviation from the
y-axis (athwartship direction) in the coordinate system.
• Specify an angle (in degrees) to compensate for any deviation from the
Z axis (vertical direction) in the coordinate system.
Keep in mind that in its default position (all axis set to 0 (zero)) the transducer
points straight down with the orientation mark (arrow) pointing forward. This
default position must always be used as reference for rotation adjustments. To
set the angles correctly, observe this exercise.
1 Start with the transducer in its default position: The transducer face
is horizontal facing down, and the indicator arrow is pointing straight
forward.
2 If the transducer is properly installed without unintentional skew, the
Rotation around X
208
can also be set to 0 (zero).
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