The controls provided by the Operating Panel are arranged in logical functional groups. This offers you clear and easy operation with fast access to key functionality. All the functionality provided by the SU90 system can be accessed using the trackball on the Operating Panel and the menu system shown in the display presentation. The Operating Panel allows you to assign certain functions to dedicated buttons and switches.
(A) Main Switch
Power
Press this button to turn the SU90 system on and off.
NoteBefore you turn on the SU90 system, make sure that you have sufficient water depth to lower the transducer!
You must never turn on the SU90 system when the ship is in dry dock. The transducer can be damaged if it transmits in the open air.
You must never turn off the SU90 system by means of the on/off switch on the Processor Unit. You must ALWAYS use the Operating Panel or select Power Off on the top bar.
Up
Press Up to hoist the transducer to its upper position.
While the transducer is moving the indicator lamp flashes, and an audible signal is sounded. When the requested position has been reached, the indicator lamp is lit, and the audible signal stops.
Middle
Press Middle to place the transducer in a predefined middle position.
If you have the large hull unit you can define two middle positions. The Middle button can only be used to lower or hoist the transducer to the initial middle position. If you want to place the transducer in position "Middle 2" you must use the Hull Unit Control dialog box. To open the Hull Unit Control dialog box, select Hull Unit on the top bar.
Down
Press Down to lower the transducer to its bottom position.
(B) Symbol
These buttons control the target markers functionality.
Place Marker
This is the same function as the Place Marker option on the shortcut menus. Place Marker allows you to create a marker at the current position of the cursor. One or more markers can be placed in the view to identify specific echoes. Each marker is shown as a small triangle with or without a short identifying label. It is positioned based on the two known axes in the view as well as the tilt and bearing of the current ping.
The marker is stationary. It has a specified range, bearing and depth related to your own vessel. If the echo moves in the display presentation the marker will not follow.
Own Ship Marker
This is the same function as Place Own Ship Marker on the shortcut menu. The own ship marker is intended as a tool in a search situation. Place the marker when your echo sounder confirms that you are passing over a school. Then, if you should loose the school from view, you will know where to start looking for it. During a search your SU90 presentation may be cluttered with multiple markers and echoes. Due to its shape the own ship markers are easy to see among the other markers.
NoteThe marker is stationary. If your vessel moves in the SU90 presentation the marker will not follow.
Circle Marker
Press Circle Marker to place a circular marker in the active view. The circle is drawn with the same diameter as your purse. By means of the circle you can see the size of the school relative to your purse.
TipThe Fishing Gear function allows you to define the size of your trawl or purse seine. This function is opened from the Setup menu.
Gear
Press Gear to place a gear symbol in the active view. The gear symbol is provided as a tool to help you plan and shoot the purse seine. The symbol is intended to be used in a structured sequence that starts when you plan to shoot the purse seine.
(C) Mode
The four buttons in the Mode field are dedicated for user settings or presentation modes. To choose which function to apply open the Operating Panel page. Under User Setting Buttons, assign one predefined setting to each button on the Operating Panel. Before you can assign custom user settings to the operating panel, a selection of settings must be available from the User Settings dialog box. The Operating Panel page is located in the Installation dialog box.
User Settings
Press one of the Mode buttons to apply a predefined user setting. Any user setting selected on the Operating Panel is identified in the upper left corner of the Horizontal view. The identifying number refers to the User Setting number on the Operating Panel page. Click on the text to make it larger. Click one more time to restore the original font size.
Presentation Modes
All echoes offered by the SU90 system are shown in rectangular views. Combinations of these views are organized in presentation modes. Each presentation mode offered by the SU90 system provides a selection of views in a predefined pattern. You must first find the presentation mode that meets your operational requirements, then you can change the size of the individual
views.
(D) Gain
The Gain buttons offer separate gain controls for the horizontal and vertical views.
You can compare this gain setting with the volume control on your car radio. When the gain is increased, the echoes will appear stronger. Weak echoes will be easier to see. However, since you also increase the acoustic noise in the reception, the echo presentations will also show this noise. Too much gain may therefore "distort" the presentation.
(E) Range
The Range buttons offer range control for the horizontal and vertical presentations.
The range setting defines from how "far" you want to detect echoes. In other words, you specify the horizontal or vertical distance from the vessel to the outer edge of the search area.
NoteEven though you can choose a large range value, that does not mean that you can detect your targets on the same range. The
range value only defines the range that is shown in the views. Actual target detection will always depend on the operational
environment, such as water temperature, salinity, interference and layers in the water column.
(F) Cursor
The Cursor buttons offer menu and cursor control.
Menu
This is an "on/off" function. Unless you need to make frequent changes to the operating parameters, you may want to hide the menu from the display presentation. This gives you more space for echo information. When the menu is hidden, it is temporarily shown on the left or right side of the display presentation if you move the cursor
to that position.
Select
Press Select to make a selection in a menu or dialog box. This corresponds to the left button on a normal computer mouse.
View
The View button opens the shortcut menu in the active view. This corresponds to the middle button on a computer mouse
Object
The Object button opens the shortcut menu in the active view. This corresponds to the right button on a computer mouse
Trackball
Use the trackball to control the cursor in the user interface.
(G) Tilt
The Tilt buttons allow you to control the vertical angle of the sonar beams.
Manual
Press Manual to control the vertical angle of the sonar beams with the two arrow buttons.
Auto
This is an "on/off" function. When Auto Tilt mode is activated the beam will automatically change its tilt angle for each transmission ("ping").
The centre of the tilt sector is defined by the chosen tilt angle just before the Auto Tilt mode is started. The chosen tilt sector is shown on the tilt indicator in the Horizontal view using a shaded background.
Sector limits are adjusted by pressing and holding the Auto button and simultaneously pressing the Tilt up or Tilt down (arrow) buttons
(H) Various
Use the Various buttons to make screen captures and zoom in on details.
Mute
The Mute button on the Operating Panel enables or disables the audio output. It does not provide volume control. Use it to acknowledge audible alarms and to acknowledge messages from the message system.
Zoom
Place the cursor anywhere in the view, right-click and press Zoom. Only one zoom level is provided. Select Zoom one more time to restore the original view.
Off Centre
Place the cursor anywhere in the view, right-click and press Off Centre. The function moves the vessel symbol to the selected position.
Record (= Screen Capture)
Press this button to make a copy of the current display presentation. You can choose either a single screen capture or a sequence with multiple screen captures. Open the Screen Captures dialog box to select screen capture mode.
(I) Train
The Train buttons offer manual control of the horizontal angle of the sonar beams as referenced to the vessel heading. They also control the automatic search and tracking programs.
Manual
Press Manual to control the bearing of the sonar beams with the two arrow buttons.
Position Track
If you wish to establish a marker on a geographical position, use the standard marker. If you wish to start position tracking, press Position Track on the Operating Panel, or give a selected marker priority. When a marker is given priority it can be regarded as a position track.
The position track locks on a position defined by its latitude, longitude and depth. The bearing and tilt settings are automatically adjusted to compensate for the movements of your vessel. The bearing line is automatically locked on the object to reflects its bearing. The marker is stationary. If the echo moves in the display presentation the marker will not follow. If you change the tilt and bearing settings manually, the position track is disabled.
NoteThe priority is identified with a "P". You can only give priority status to one object. If you create a new marker and give this priority, the position track is disabled. The same applies if you start a new target track.
Relevant information about the priority target can be found in the lower left corner of the view. If you think the text is small and hard to read, double-click on the text field. This will increase the text size.
Target Track
During normal operation, some echoes are clearly more interesting than others. In many situations specific echoes may be regarded as targets. To keep track of the targets you can use target markers and/or start target tracking. When target tracking is activated, bearing and tilt are automatically adjusted to follow the movements of the tracked target.
The tracked target is regarded as an object, and it is identified with a circle and two lines. The two lines reflect the size of the current tracking area. By default, a new manually initiated tracked object is automatically given priority status. The bearing line is automatically locked on the object to reflects its bearing.
Place the cursor over the echo you wish to track. Press Target Track.
TipOn the User Settings Setup page, de-select New Manually Initiated Track if you do not want new tracked targets to become priority targets. This page is located in the Installation dialog box. To open the page, select Installation on the Setup menu.
Auto Search
Press Auto Search to start the automatic search function. In the Auto Bearing mode the SU90 system will automatically search within defined sector limits. The sector is identified in the view using two angular symbols.
The search sector is adjusted by pressing and holding the Auto Search button and simultaneously pressing the arrow buttons. The automatic search function is stopped when one of the arrow buttons is pressed, but will continue once the button is released. The bearing at the moment either button is released will become the centre of the search.
To exit the automatic search mode press the Manual button.
Before you can change the settings related to a view, you must click inside the view to activate it. The changes you make are by default only valid for the active view. Several of the functions offer Apply to All. If you select Apply to All your setting is applied to all the views in the current presentation mode.