28
Operation
SeaBat UI - User Manual
4.3.10 Sound Velocity
When the override checkbox is checked, the sound velocity slider allows
the operator to enter a value for speed of sound in the water.
When a sound velocity sensor is interfaced and the override checkbox is
not checked the sound velocity value as displayed will be the value as
received from the sensor.
Figure 4-27
Sound velocity with Override checkbox
An online sound velocity must be used for providing up-to-date velocities
to ensure optimum performance. A manual velocity may be entered
instead but care should be taken to ensure the value entered is
representative of the real velocity.
4.3.11 SVP Filter
The data from the external sound velocity probe (SVP) can be filtered.
The sonar used the value from the sound velocity probe to present the
data in the wedge. When there are spikes in the data from the sound
velocity probe the display of the sonar data will be disturbed. The SVP
filter will filter these spikes out of the data. From a light filter (option Light)
to normal and a strong filter (option Wizard).
Figure 4-28
Sound velocity with Filter set to Normal
4.4 Messages
In the Messages pane the operator can see the error messages related
to the sensor interfacing.
Figure 4-29
Messages
All the error messages will be displayed in the Messages list. By
accepting an error message it will be removed from the list. This will not
mean that the error is solved, but that only the message is removed.
Select an error message and click on
to remove the selected
error message from the list. Click on
to remove all error
messages.
4.5 IO Module
In the IO Module pane the different sensors (such as the sound velocity
probe and the external clock) can be interfaced with the IO Module. The
