Kongsberg Simrad SN90, Руководство по установке

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A
This installation angle is defined using the
Rotation around Y
value.
Keep in mind the default "start location" of the transducer; all rotation angles set to
0 (zero) means that the transducer face is horizontal pointing straight down with the
orientation mark (arrow) pointing forward. Lifting the transducer to the requested
angle will always require a positive rotation around the Y-axis.
Tip
When you decide on rotation around the Y-axis, consider the tilt range offered by
the SN90: +10 to -90° in 1° steps. Make sure that the physical installation angle
does not allow the hull to create a shadow for the SN90 beams when minimum tilt is
chosen in the user interface.
B This installation angle is defined using the
Rotation around Z
value.
Turning the transducer to face the gear on a purse seiner will always require a
positive (or negative) rotation around the Z-axis. A positive Z-axis value will turn
the transducer towards port, while a negative value will turn it towards starboard.
You will only need to adjust the rotation around the X-axis if the transducer is mounted
with the orientation mark (arrow) pointing in the wrong direction, or if it necessary to
adjust for an inaccurate installation.
Example 1
For trawl and navigation use , the transducer shall be pointed straight forward with the
indicator arrow pointing up. To set the angles correctly, observe this exercise. Use your
cellphone to visualize the transducer movements.
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
can also be set to 0 (Zero).
3 Lift the front end of the transducer up, so that the indicator arrow moves up. This
is a
Rotation around Y
.
4 Proceed until the requested angle has been reached.
Example : If a 30 degrees Y angle is requested, the
Rotation around Y
must be set to
60 degrees (that is the angle from the default position).
5 Since the transducer is pointing straight forward, the
Rotation around Z
value is
0 (Zero).
Example 2
Used for purse seine with the gear on the starboard side , the transducer shall be pointed
approximately 90 degrees towards starboard with the indicator arrow pointing up. To
set the angles correctly, observe this exercise. Use your cellphone to visualize the
transducer movements.
Installing the transducer