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381295/B

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The SN90 offers the same user interface and operating software as our other sonars,
echo sounders and catch monitoring systems. This enables easier and faster training
of new users.

The SN90 echo presentations are optimized for multiple displays. Provided that you
have connected additional displays to your Processor Unit, you can use the

Docking

Views

function to take any sonar view and place it on a separate display. When you move

a view to another display, it will automatically be scaled for the best possible result.

It is common for sonars to require many pings to build the various views in the echo
presentation. These sonars may for example need one ping to build the 360 degrees omni
view, and then several additional pings to fetch the echoes for the vertical views. On
the SN90, all the sonar views in the presentation are built using the echoes from one
single ping. This dramatically improves the update rate and provides better real-time
information.

The SN90 permits you to record real-time sonar situations. This allows you to replay
complete sequences. The playback contains the exact same echo information, and can be
used for mission history, training or troubleshooting purposes.

Great emphasis has been placed on an intuitive user interface and the best possible sonar
presentations on a high resolution colour display.

The SN90 is equipped with the celebrated signal processing software developed by
Kongsberg Maritime. The SN90 offers several pulse types. This includes Hyperbolic
FM (HFM) transmissions. This pulse type is also known as "chirp". It ensures a clutter
free picture with very high resolution in range. The signal processing and beamforming
is performed in a fast digital signal processing system using the full dynamic range
of the signals.

Key features

The Simrad SN90 is a unique and flexible sonar system. Due to the high resolution
and long range, the SN90 has proven to be a very efficient tool for both trawlers and
purse seiners.

For use on trawlers, the transducer is mounted on the vessel’s bow in a "forward looking"
position. For purse seine applications, the transducer is mounted on the port or starboard
side of the hull, facing the seine. The SN90 allows you to run alongside a school of fish
and observe, and you can analyse the school without passing over it.

• Up to 160° horizontal coverage

• Up to 160° vertical coverage

• Up to five separate 6x6° inspection beams

• Tilt range: -80 to 80° in 1° steps

• Operational frequency 70 to 120 kHz in steps of 1 kHz

• Wide bandwidth

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Содержание SN90

Страница 1: ...Simrad SN90 Purse Seine and Trawling sonar www simrad com TECHNOLOGY FOR SUSTAINABLE FISHERIES Operator Manual ...

Страница 2: ......

Страница 3: ...rs of the SN90 Due to the nature of the descriptions and the level of detail provided by this manual it is well suited for those who use the SN90 on a daily basis and have access to expert users for advice Caution You must never start SN90 transmissions pinging when the ship is in dry dock The transducers may be damaged if they transmit in open air All end user manuals provided for operation and i...

Страница 4: ... Improper use or maintenance may cause damage to the equipment and or injury to personnel You must be familiar with the contents of the appropriate manuals before attempting to operate or work on the equipment Kongsberg Maritime disclaims any responsibility for damage or injury caused by improper installation use or maintenance of the equipment Disclaimer Kongsberg Maritime AS endeavours to ensure...

Страница 5: ... the radius of the search area 35 Adjusting the echo sensitivity 36 Changing the vertical angle of the sonar beams 38 Adjusting the horizontal direction of the sonar beam 40 Turning off the SN90 41 Basic operating procedures 43 Selecting the language displayed in the menus and dialog boxes 43 Selecting operating frequency for minimum noise 44 Hiding the menu system when you do not need it 45 Savin...

Страница 6: ...e 75 Using visual aids during the purse seine catch phase 75 Choosing the fishing gear in use 77 Changing the fishing gear properties to match your own equipment 78 Improving the recognition of fish and schools using receiver filters 79 About the receiver filter sequence in the SN90 79 Reducing noise and reverberation with the AGC Automatic Gain Control function 80 Reducing propeller noise and int...

Страница 7: ...t intensity on the Operating Panel 106 Reducing the light emitted from the display presentation 107 Increasing the visibility of the information panes 107 Changing the colour palette skin used in the SN90 presentations 108 Choosing the colours used to present the echoes 109 Selecting measurement units 109 Configuring the environmental parameters 110 Setting up the alarm limits for system protectio...

Страница 8: ...e sensor interface 142 Setting up the input from a motion reference unit MRU 143 Setting up the SN90 in a synchronized system 145 Setting up the SN90 in a synchronized system 148 About synchronization 148 Synchronization modes 148 Synchronization using Clear To Send CTS and Request To Send RTS signals 149 Synchronization sequences 150 Selecting synchronization port 151 Selecting synchronization mo...

Страница 9: ...ration Software version This SN90 Operator Manual complies with software version 3 1 4 Registered trademarks Observe the registered trademarks that apply Simrad SIMRAD and the Simrad logo are either registered trademarks or trademarks of Kongsberg Maritime AS in Norway and other countries Windows is a registered trademark of Microsoft Corporation in the United States and other countries We want yo...

Страница 10: ... to know Before you turn on the SN90 Before you turn on the SN90 make sure that you have sufficient water depth to lower the transducer Caution You must never turn on the SN90 when the ship is in dry dock The transducer may be damaged if it transmits in open air When the SN90 is not used When you do not use the SN90 turn off the entire system Note You must never turn off the SN90 by means of the o...

Страница 11: ...d to its upper position Note If you turn off the SN90 by means of the on off switch on the Processor Unit you may damage the software and the interface settings used to communicate with external devices Manual operation of the hull unit In the event of improper operation the powerful electric motor on the hull unit may cause serious damage to the equipment and or injury to personnel Therefore befo...

Страница 12: ...high pressure water sandblasting metal tools or strong solvents to clean the transducer Do not step on the transducer cables Do not damage the transducer cables and avoid exposure to sharp objects Simrad SN90 Operator Manual ...

Страница 13: ...ency fish finding sonar Due to the high resolution and long range the SN90 has proven to be a very efficient tool for both trawlers and purse seiners Topics Using SN90 on purse seiners page 12 Using SN90 on trawlers page 13 Specifications and functionality page 13 Simrad SN90 ...

Страница 14: ... and you can analyse the school without passing over it This is like using a horizontal mounted echo sounder but with a lot more accuracy and with dedicated software and presentation formats Fish avoidance is minimized and more accurate information about the fish in the school can be obtained You can detect unwanted species catch the correct size and estimate the volume of the school before settin...

Страница 15: ...cer is placed in the vessel s bow the SN90 will not suffer from the acoustic noise generated by the hull machinery and propellers The physical installation angle of the transducer must be determined based on the depth in the vessel s normal fishing waters Even with a fixed installation angle the SN90 will serve well in other waters too due to the swath and tilt functionality Specifications and fun...

Страница 16: ...dard interface lines for communication with peripheral devices and sensors Typical inputs are geographical information from a positioning system vessel speed and current heading In order to operate correctly the SN90 requires input from a motion reference unit MRU Without the input from a motion reference sensor the SN90 will not be able to compensate for the vessel movements This lack of compensa...

Страница 17: ...on history training or troubleshooting purposes Great emphasis has been placed on an intuitive user interface and the best possible sonar presentations on a high resolution colour display The SN90 is equipped with the celebrated signal processing software developed by Kongsberg Maritime The SN90 offers several pulse types This includes Hyperbolic FM HFM transmissions This pulse type is also known ...

Страница 18: ...abilized beams Easy operation Store and recall sonar data Define and save your own user settings Clear and easily comprehensive sonar data Supports multiple displays 8 transceiver boards provide 256 individual channels The transducer can be mounted side or forward looking through the hull plating in a blister or by means of a hull unit Simrad SN90 Operator Manual ...

Страница 19: ...n optional method to lower and hoist the transducer A Display The second display is optional B Processor Unit C Operating Panel D Transceiver Unit E Hull Unit F Hoist motor G Motor Control Unit H Transducer In this publication the computer is referred to as the Processor Unit Unless otherwise specified in a contract the display is not included in the standard delivery from Simrad This is a commerc...

Страница 20: ...sons must always be present during troubleshooting with power ON 3 Read and understand the applicable first aid instructions related to electric shock 4 Whenever maintenance is in progress it is essential that a first aid kit is available and that all personnel are familiar with the first aid instructions for electrical shock 5 The various parts of the system may be heavy Make sure that the approp...

Страница 21: ... 388 Website http www simrad fr E mail address simrad france simrad com USA Company name Kongsberg Underwater Technology Inc Simrad Fisheries Address 19210 33rd Ave W Suite A Lynnwood WA 98036 USA Telephone 1 425 712 1136 Telefax 1 425 712 1193 Website https www simrad com E mail address fish usa support simrad com Canada Company name Kongsberg Mesotech Ltd Address 1598 Kebet Way Port Coquitlam BC...

Страница 22: ...a Company name Kongsberg Maritime Korea Ltd Address 1101 Harbor Tower 113 1 Nampodong 6 Ga Jung Gu Busan 600 046 Korea Telephone 82 51 242 9933 Telefax 82 51 242 9934 Website https www simrad com E mail address simrad korea simrad com China Company name Kongsberg Maritime China Ltd Address 555 Chuanqiao Road China Shanghai Pilot Free Trade Zone 201206 China Telephone 86 21 3127 9888 Telefax 86 21 ...

Страница 23: ...381295 B 21 Getting started Topics Operating Panel description page 22 Menu system page 25 Starting normal operation page 26 Basic operating procedures page 43 Getting started ...

Страница 24: ...a mouse or a USB flash drive A Power Press this button to turn the SN90on and off Before you turn on the SN90 make sure that you have sufficient water depth to lower the transducer You must never turn on the SN90 when the ship is in dry dock The transducer may be damaged if it transmits in open air You must never turn off the SN90 by means of the on off switch on the Processor Unit You must ALWAYS...

Страница 25: ...hoist the transducer to its upper position Middle Press Middle to place the transducer in a predefined middle position Down Press Down to lower the transducer to its bottom position H Rotary switches Turn a rotary switch to apply a predefined function To choose which function to apply open the Operating Panel page Under Rotary Switch Options assign one function to each rotary switch on the Operati...

Страница 26: ...about the priority object can be found in the lower left corner of the view If you change the tilt or bearing settings manually the priority status is lost K Trackball Use the trackball to control the cursor in the SN90 user interface Note The SN90 supports two different operating panels These are referred to as Mk1 and Mk2 In this publication all descriptions and references are related to Mk2 Bef...

Страница 27: ...ansmits ping into the water B Display menu The Display menu provides basic functions related to the screen behaviour and presentation of SN90 data C Setup menu The Setup menu provides basic functions related to the SN90 installation parameters and its communication with peripheral systems D Active menu The Active menu offers parameters related to current views and data presentations shown by the S...

Страница 28: ...on the Operating Panel The SN90 program starts automatically when the Processor Unit is turned on Caution You must never start SN90 transmissions pinging when the ship is in dry dock The transducer may be damaged if it transmits in open air A hull unit may be provided as an optional method to lower and hoist the transducer This task assumes that a hull unit is installed If a hull unit is not insta...

Страница 29: ...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 Alternatively use the Hull Unit function on the top bar to lower the transducer 7 At the bottom of the Main menu observe that the Operation icon is flashing The icon is flashing to indicate that even if the SN90 is turned on pinging is disa...

Страница 30: ...iews function provided by the SN90 allows you to rearrange the physical positions of the views and change their sizes A comprehensive menu system allows access to all SN90 functionality The menu system is by default located on the right side of the SN90 presentation A Top bar B Sonar views C Menu system D Secondary menus E Bottom bar Simrad SN90 Operator Manual ...

Страница 31: ...et of dedicated icons are used to open the secondary menus Select the icon one more time to close the menu 4 Move the cursor to the bottom of the SN90 presentation The bottom bar is located at the bottom of the SN90 presentation and stretches from the far left to the far right It allows you to choose presentation mode view combinations It also shows you the colour scale you are using as well as cu...

Страница 32: ... the Beam Visualization dialog box from the Setup menu Procedure 1 At the bottom of the SN90 presentation select a suitable presentation mode and activate the Horizontal view The Horizontal view in the SN90 presentation covers the entire 160 sector The current bearing is shown with a continuous line pointing out from the vessel position You can change the angle by means of the Bearing function on ...

Страница 33: ... the Main menu You can also select the bearing line in a Horizontal view and drag it sideways The upper horizontal line in the view represents the water surface Horizontal dotted lines show the depth intervals Use Depth Dividers on the Cosmetics menu to toggle these lines On or Off The selected range is divided into identical distances These are shown as dotted circles They are referred to as rang...

Страница 34: ... You can change the bearing on the Main menu You can also click on the dedicated dotted bearing line in a Horizontal view and drag it You can change the tilt angle by means of the Tilt function on the Main menu Horizontal Tx Sector defines the opening angle of the sector It can be set to 90 120 or 160 The selected range is divided into identical distances The distance and depth of the cursor locat...

Страница 35: ... Range and Range settings Small labels are shown in the bottom left and right corners of the view These labels show you the time in order to identify the scale of the horizontal axis When enabled equidistant horizontal scale lines are drawn in the view to indicate the range The Horizontal Scroll function controls how fast the echoes shall travel across the Inspection views Tip To fully understand ...

Страница 36: ... the operating mode of the SN90 You can set it to Normal Replay or Inactive Normal mode allows the SN90 to transmit ping through the water and to receive the echoes Caution You must never start SN90 transmissions pinging when the ship is in dry dock The transducer may be damaged if it transmits in open air Once started the SN90 transmissions are controlled by the Transmission Mode and TX Power fun...

Страница 37: ...oes In other words you specify the horizontal or vertical distance from the vessel to the outer edge of the search area Note The range value selected and shown is by default only used by the active view Even 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 ...

Страница 38: ...e of the button to open it If you have a keyboard connected to the SN90 type the requested value d Select the middle of the button to open it Select a value from the options provided 6 Open the button and select Apply to all if you wish to use the chosen setting in all the views in the current presentation mode Related topics Starting normal operation page 26 Adjusting the echo sensitivity Some ec...

Страница 39: ... that you keep the gain between 15 and 30 If you need to adjust the gain from scratch disable AGC Automatic Gain Control and RCG Reverberation Controlled Gain to see the immediate effect of the gain adjustments While you adjust the gain you may find it useful to have a known target for example an island as reference Procedure 1 Click in the view you want to activate The active view is identified w...

Страница 40: ...Changing the vertical angle of the sonar beams In order to detect fish or schools in the water column you may need to change the angle of the sonar beams The sonar beams can be tilted electronically from 80 to 80 in 1 steps Context The current tilt is shown with a solid line in the Vertical view In the Horizontal view the current settings for range gain and tilt are shown in the top left corner of...

Страница 41: ...ave in the water By means of a graphic presentation the Beam Visualization dialog box attempts to give you a better understanding of how the acoustic beams are transmitted into the water Open the Beam Visualization dialog box from the Setup menu Procedure 1 In a Vertical view click on the tilt line keep the mouse button depressed and drag the line up or down Optionally 2 Click in any view to make ...

Страница 42: ...rity status The priority is identified with a P The bearing and tilt settings are automatically adjusted to follow the movements of the tracked target The bearing line is automatically locked on the object to reflects its bearing Procedure 1 Click in the view you want to activate The active view is identified with a thicker border Unless you use the Apply to all function all changes you make will ...

Страница 43: ...turn off the SN90 You can also use the Power button on the Operating Panel You must never turn off the SN90 by means of the on off switch on the Processor Unit When you do not use the SN90 turn off the display and the Processor Unit A hull unit may be provided as an optional method to lower and hoist the transducer This task assumes that a hull unit is installed If a hull unit is not installed you...

Страница 44: ...o Operating System 3 Wait while the SN90 program closes and theTransceiver Unit is turned off 4 Turn off the display If required refer to the instructions provided by the display manufacturer Related topics Starting normal operation page 26 Simrad SN90 Operator Manual ...

Страница 45: ...t the language to be used in the SN90 presentations menus and dialog boxes Context With a few exceptions the chosen language will also be used for all other text on the SN90 The SN90 help may not be available for the language you choose If your language is not supported the English help is provided Procedure 1 Open the Setup menu 2 Select the middle of the Language button to open the list of avail...

Страница 46: ...do this test twice First do the test with all other hydroacoustic systems echo sounders ADCP sonars turned off Second do the test with normal operating conditions This allows you to see how the other hydroacoustic systems affect the SN90 operation Procedure 1 On the Main menu select User Settings a Select SN90 Factory Default b Select Activate Selected Setting c Select OK to apply your changes and...

Страница 47: ...nently on the left side of the SN90 presentation Procedure 1 To hide the menu select Menu on the top bar When the menu is hidden it is temporarily shown on the left or right side of the SN90 presentation if you move the cursor to that position 2 To retrieve the menu select Menu one more time Related topics Basic operating procedures page 43 Saving single or sequential screen captures While using t...

Страница 48: ...new screen capture is created for every ping b Select Close to save the chosen settings and close the dialog box Saving a single screen capture 3 Observe Screen Capture on the top bar 4 Select Screen Capture to make a copy of the current SN90 presentation Every time you do this a new image file is created You can also use the Screen Capture button on the Operating Panel Saving a sequence of screen...

Страница 49: ...m any name All the settings you have chosen using functions and dialog boxes in the SN90 user interface are saved Procedure 1 Observe the Main menu Its default location is on the right side of the SN90 presentation 2 Select User Settings 3 Select Save Current Setting A small dialog opens to accept the name of the new setting 4 Type a name for the user setting Note If you do not have a computer key...

Страница 50: ...ht side of the button to start pinging Select the symbol on the left side the button to stop pinging Select the middle of the button to open it If you choose Maximum the SN90 will transmit ping continuously and as often as possible This gives you the maximum refresh rate The time between each ping the ping rate depends mainly on the current range In some systems a low performance Processor Unit an...

Страница 51: ...295 B 49 or 5 Set Transmission Mode to Single Ping The SN90 transmits pings only when you select the symbol on the right side of the button Related topics Basic operating procedures page 43 Getting started ...

Страница 52: ...page 87 Setting up presentation modes and views page 93 Using the information panes to collect data from the echoes page 96 Defining settings related to user preferences and individual customizing page 102 Saving retrieving and handling user settings page 114 Defining the user selected features on the Operating Panel page 119 Lowering and hoisting the transducer from the sonar room page 125 Settin...

Страница 53: ...ve sufficient water depth below the keel before you lower the transducer 2 Turn on the display s If required refer to the instructions provided by the display manufacturer 3 On the Operating Panel press Power and keep it depressed for a few seconds The blue indicator light in the button flashes while the Operating Panel establishes contact with the Processor Unit When the connection has been made ...

Страница 54: ... Lowering and hoisting the transducer from the user interface page 52 Turning off the SN90 page 53 Lowering and hoisting the transducer from the user interface The Operating Panel controls the lowering and hoisting of the transducer Dedicated buttons are provided for the physical transducer locations You can also control the transducer movements from the top bar on the SN90 Context The Hull Unit d...

Страница 55: ...1 Turning off the SN90 page 53 Turning off the SN90 When you do not use the SN90 turn off the entire system To power down the three Power Supply Units and the Transceiver Unit use the functionality in the SN90 program When you do not use the SN90 turn off the display and the Processor Unit A hull unit may be provided as an optional method to lower and hoist the transducer This task assumes that a ...

Страница 56: ...gram closes and theTransceiver Unit is turned off 4 Turn off the display If required refer to the instructions provided by the display manufacturer Related topics Getting started page 51 Turning on the SN90 page 51 Lowering and hoisting the transducer from the user interface page 52 Simrad SN90 Operator Manual ...

Страница 57: ...mode This is the default mode when the SN90 is turned on Context The Operation function controls the operating mode of the SN90 You can set it to Normal Replay or Inactive Normal mode allows the SN90 to transmit ping through the water and to receive the echoes Caution You must never start SN90 transmissions pinging when the ship is in dry dock The transducer may be damaged if it transmits in open ...

Страница 58: ...um Result The SN90 is now transmitting acoustic pulses pinging into the water Related topics Choosing operating mode and key transmit parameters page 55 Selecting Replay mode page 56 Selecting Inactive mode page 57 Selecting Replay mode Replay mode allows you to play back previously recorded raw data The SN90 can not operate normally while in Replay mode Neither transmission nor reception take pla...

Страница 59: ...sing operating mode and key transmit parameters page 55 Selecting Normal mode to start pinging page 55 Selecting Inactive mode page 57 Recording and replaying echo data page 87 Choosing which echo data file s to replay page 90 Selecting Inactive mode Inactive mode is provided to pause the SN90 operation temporarily Neither transmission nor reception will take place The current echoes will be remov...

Страница 60: ... Use Transmission Mode to control how often the SN90 shall transmit its energy into the water For normal use choose Maximum If you choose Maximum the SN90 will transmit ping continuously and as often as possible Procedure 1 Open the Operation menu 2 Set Operation to Normal 3 Set Transmission Mode to Maximum The time between each ping the ping rate depends mainly on the current range How fast your ...

Страница 61: ...ping symbol on the right side of the button to transmit one single ping Related topics Choosing operating mode and key transmit parameters page 55 Setting up the SN90 for maximum echo refresh rate page 58 Transmitting with fixed time intervals page 59 Transmitting with fixed time intervals You can set up the SN90 to transmit pings with a fixed time interval Context Use Transmission Mode to control...

Страница 62: ...s used to control the amount of power that is transmitted with each ping Context Most users operate the SN90 with Tx Power set to Maximum This allows for maximum range and works well in open waters with sufficient depth Certain operating conditions may make it appropriate to adjust the output power Use Tx Power to reduce the transmitted acoustic energy compared to the maximum output Tip If you wor...

Страница 63: ...hen you wish to find the best operating frequency Context A lower frequency gives you a better detection range because the attenuation loss is smaller A higher frequency gives you better range resolution A higher frequency also gives you narrower beams and a sharper image Noise from internal and external sources have an impact on the choice of operating frequency One specific frequency may perform...

Страница 64: ... page b Select Start Noise Measurements c On the Active menu change the Frequency setting while observing the noise value d Note frequencies with high noise levels and try to avoid using them Tip The factory default settings include operating frequency If you apply these settings remember to make the appropriate changes afterwards Related topics Choosing operating mode and key transmit parameters ...

Страница 65: ...hen 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 SN90 presentations will also show this noise Too much gain may therefore distort the presentation Comparing the gain function with the volume control on your car radio is not very accurate In fact the gain in the SN90 is constant The Ga...

Страница 66: ...ant to activate The active view is identified with a thicker border Unless you use the Apply to all function all changes you make will only be applied to this view 2 Turn the relevant rotary switch to make the adjustment Tip The Operating Panel is fitted with three rotary switches The switches are identified with numbers Each switch can be assigned a function related to range gain or bearing Inves...

Страница 67: ...ating a different gain compensation Each curve is identified with the equation X log TVG The coefficient X is an integer Typical values for X are 10 to 40 Procedure 1 Click in the view you want to activate The setting you choose will only be valid for the active view The active view is identified with a thicker border 2 Open the Active menu 3 Locate the TVG button 4 Select or to choose the request...

Страница 68: ...tted with three rotary switches The switches are identified with numbers Each switch can be assigned a function related to range gain or bearing Investigate the functionality provided on the Operating Panel page This page is located in the Installation dialog box Optionally 3 Observe the Main menu Its default location is on the right side of the SN90 presentation 4 Select Range 5 Make the necessar...

Страница 69: ... you can see the targets without too much noise and reverberation The chosen setting is a matter of personal preferences Procedure 1 Open the Display menu 2 Select Display Gain 3 Adjust the setting to fit your requirements To change the setting move the cursor to either side of the button Select the left side of the button to decrease the value Select the right side of the button to increase the v...

Страница 70: ...B you are able to pick up scattered fish or schools if these are located at some distance above the bottom The upper school in the illustration appears on the sonar picture before the bottom echo while the lower school will easily be disguised by the bottom echoes Once again you can activate the RCG function to improve the reading Tip With the various beams provided by the SN90 it may be difficult...

Страница 71: ...Related topics Controlling the gain and range settings page 63 Adjusting the bearing The Horizontal view in the SN90 presentation covers the entire 160 sector For the other views you must define the horizontal direction of the beam Context In the Horizontal view the current bearing is shown with a continuous line pointing out from the vessel position The area covered by the vertical beam is shown ...

Страница 72: ...ect the bearing line and drag it sideways Optionally 4 Observe the Main menu Its default location is on the right side of the SN90 presentation 5 Select Bearing 6 Make the necessary adjustment The following methods can be used to adjust this setting a Select or to choose the requested setting b Place the cursor on the button Press and hold the left mouse button Move the cursor horizontally over th...

Страница 73: ... depth The phrase position is used to identify a fixed echo in the SN90 presentation that you wish to act upon The echo may for example be from a shallow reef or rock You must decide which echoes that shall be classified as positions and whether you shall start position tracking The bearing and tilt settings are automatically adjusted to compensate for the movements of your vessel The bearing line...

Страница 74: ...et track permits the SN90 to automatically control the tilt and bearing based on the movements of the chosen target It locks on the target defined by its position heading and speed 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 The phrase target is used to identify an echo in the SN90 presenta...

Страница 75: ...enu 5 Select Initiate Track Further requirements Under certain circumstances the target tracking may not follow the intended echo This may for example happen if the tracking area is too large You can initiate manual tracking by placing multiple markers on your target echo as it moves in the view This location of the markers in the view will then show you the historic path of the target Related top...

Страница 76: ...ers and tracking features page 71 Deleting a marker There are two ways to delete a marker You can use the shortcut menu or select Delete in the Objects menu Context You can delete a single marker or multiple markers simultaneously by selecting Delete in the Objects menu If you use Delete Marker on the shortcut menu you can only remove one marker at a time Procedure 1 Open the Objects menu 2 In the...

Страница 77: ...Marker on the Operating Panel or Right click and select Place Circle Marker on the shortcut menu The size and location of the marker is defined by the choices you have made with the Fishing Gear function Further requirements To delete the circle marker press Circle Marker on the Operating Panel or right click to select Remove Circle Marker on the shortcut menu Related topics Using the markers and ...

Страница 78: ...s placed in the view and marks the position where the purse seine was shot The circular marker is disconnected from the vessel movements and acts as a guideline for your manoeuvring The history line shows the movements of your vessel Since the SN90 knows the length of your net it places a second marker on this line when half the length has been spent When the entire net has been spent a third rect...

Страница 79: ... of your trawl or purse seine Prerequisites Use the Fishing Gear Setup dialog box to change the fishing gear properties to match your own equipment Context Accurate fishing gear properties are important for the following functionality Circle Marker Gear Symbol Catch view Procedure 1 Open the Setup menu 2 Select Fishing Gear 3 Select an option from the list provided Related topics Using the markers...

Страница 80: ...shing Gear dialog box select gear type and gear name b Select OK to save the selected settings and close the dialog box 4 On the list of available fishing gears select the gear you wish to set up 5 For the selected gear select a depth value The depth value defines how deep the gear will sink when it is fully deployed 6 Select the length of the fishing gear 7 Set throw side to Port or Starboard 8 S...

Страница 81: ...se and false echoes with the Ping Ping Filter page 84 Adjusting the intensity of the echo presentations page 86 About the receiver filter sequence in the SN90 The filters in the SN90 are implemented in series Any changes to a filter setting may therefore have an effect on subsequent filters A Bottom Filter B Noise Filter 1 C Gain TVG Time Variable Gain D Noise Filter 2 E AGC Automatic Gain Control...

Страница 82: ...gain if you have reverberation and noise or increasing the gain if the acoustical conditions permit it Tip The most practical way to use the AGC Automatic Gain Control is to first switch it off Adjust the echo presentation using the normal gain functionality until you have the best possible result then activate the AGC The AGC works best with even background homogenous noise conditions and pronoun...

Страница 83: ...ystems you may have an issue with interference Even with synchronization activated the noise from other nearby vessels may cause noise Context The Noise Filter is used to minimize the interference from other acoustics systems sonars and echo sounders on your own and or other vessels The filter also suppresses noise from your propellers and from other similar noise sources The Noise Filter is very ...

Страница 84: ...cted from these unwanted objects is referred to as reverberation Reverberation is often a limiting factor especially if you are searching for smaller targets Context The RCG Reverberation Controlled Gain controls the receiver processing The algorithm handles each receiver beam individually The filter reduces the unwanted echoes from the bottom and from the sea surface This enhances the visibility ...

Страница 85: ...gs 8 Use for scattered fish This setting uses a slightly different algorithm than the other scattered fish settings 9 Use for scattered fish This setting uses a slightly different algorithm than the other scattered fish settings The filters in the SN90 are implemented in series The reverberation controlled gain adjustment is made late in the sequence so any changes to the preceding filters may hav...

Страница 86: ...es from the latest four pings For the current echo to be shown it must be present in all of these pings Strong Select Strong to allow the filter to compare the echoes from the latest eight pings For the current echo to be shown it must be present in all of these eight pings The filters in the SN90 are implemented in series The Ping Ping Filter is the last filter in the sequence so any changes to t...

Страница 87: ...he AGC The AGC works best with even background homogenous noise conditions and pronounced targets With uniform environmental conditions you may benefit from strong compensation However if you are looking at scattered fish reduce the automatic gain control and try to add normal gain instead If you work close to other vessels the noise from their propellers may be misinterpreted as echoes This will ...

Страница 88: ...ls the amount of echo that is displayed in other words the strength or intensity of the echo presentation The function thus increases or decreases the presentation of the echo colours Use this parameter together with Gain to adjust the SN90 sensitivity For all practical purposes adjusting Display Gain has the same effect as adjusting Gain Adjust the Display Gain so that you can see the targets wit...

Страница 89: ...to store the data files If you wish to save your recorded data on an external hard disk make sure that it is connected to the Processor Unit Tip Unless you really need to record data for playback and or training purposes you should use this function with care The data files will fill you hard disk very fast File Setup controls how and where the recorded files are saved on the Processor Unit hard d...

Страница 90: ...nction Prerequisites Before you start data recording make sure that you have defined where to store the files To define which disks and folders to use to save the data files select File Setup If you wish to save your recorded data on an external hard disk make sure that it is connected to the Processor Unit Tip You are permitted to define the maximum file size for each recorded file Context Unless...

Страница 91: ... recorded raw data The SN90 can not operate normally while in Replay mode Neither transmission nor reception take place Context All playback is controlled by the replay bar A Stop Select this button to stop the playback B Play Pause Select this button to start the playback or to pause it C Replay Speed Select this slider and move it sideways to adjust the replay speed D Replay File The button show...

Страница 92: ...e s to replay Every time you record echo data the information is stored on the Processor Unit hard disk Depending on your initial settings the files may also be stored on a USB hard disk or even a network disk The echo data files can be retrieved and played back on the SN90 Context All playback is controlled by the replay bar A Stop Select this button to stop the playback B Play Pause Select this ...

Страница 93: ...is positioned directly below the top bar at the top of the SN90 presentation Related topics Recording and replaying echo data page 87 Accessing the echo data files to delete move or copy them Use the data recording functionality provided by the SN90 to save echo data You can save the data to the Processor Unit hard disk or onto an external storage device Prerequisites It is assumed that you are fa...

Страница 94: ...ed by the operating system to delete the files or to copy or move them to the storage device 6 Close the file manager utility 7 Disconnect the storage device 8 Resume normal operation Related topics Recording and replaying echo data page 87 Defining the file and folder settings for data recording page 87 Simrad SN90 Operator Manual ...

Страница 95: ...h view can be changed individually The content in a view that changes size will automatically be adjusted to take full advantage of the space available Procedure 1 Open the Display menu 2 Set Docking Views to On 3 Click in the title bar of the view that you want to move The frame of the selected view will change colour to indicate that it has been selected 4 Press the mouse button and keep it depr...

Страница 96: ... do this We suggest that you save your current user settings before you activate the Docking Views function a Observe the Main menu b Select User Settings c Select Save Current Setting d Type a name for the user setting e Select OK to save the chosen name f Select OK to close the dialog box 2 Open the Display menu 3 Set Docking Views to On 4 Click in the title bar of the view that you want to move...

Страница 97: ...y wish to restore the SN90 presentation to what it was before you changed it Procedure 1 On the Main menu select User Settings 2 Select the default settings Note These settings are the default values provided with the Simrad SN90 All current settings are lost when the default factory settings are applied There is no undo 3 Select Activate Selected Setting Result All views are placed back to their ...

Страница 98: ...ent water depth in the Depth information pane Context The Depth information pane provides the water depth in the current Inspection view If you have several Inspection views open you can place one pane in each view Procedure 1 Click in the view you want to activate The active view is identified with a thicker border The information provided will only be valid for the selected view 2 On the top bar...

Страница 99: ...e biomass The Biomass information pane displays an index of the biomass in the in the current Inspection view The biomass index is the sA value or Nautical area scattering coefficient NASC measured with unit m2 nmi2 Context The digit shown in the Biomass information pane is a calculated index It is possible to convert the biomass index to weight for example in metric tons Based on practical use of...

Страница 100: ...on pane Locating the position of single fish in the beam The Fish Position information pane can be useful during trawling It shows you the horizontal position of single fish in the beam Keep an eye on the Fish Position information pane to make sure that you can manoeuvre the trawl through the areas with most fish Context The Fish Position information pane shows the position of the detected single ...

Страница 101: ...se the Information Pane Options dialog box to change the operating parameters for the data provided in the information panes 7 Select Close in the top right corner to close the information pane Selecting fish species and changing their size to improve the size distribution information The Size Distribution information pane shows a histogram of the echoes detected from single fishes The calculation...

Страница 102: ...view Each Zoom information pane export information When opening the Biomass and or the Size Distribution information panes you will automatically receive information from each of the Zoom information panes that you have opened Procedure 1 Click in the view you want to activate The active view is identified with a thicker border The information provided will only be valid for the selected view 2 On...

Страница 103: ...the Inspection view while it moves towards the left or it can stay put When Area Fixed To Vessel is active the zoomed area will be permanently positioned on the Inspection view The echoes shift through the area and therefore also shift through the Zoom information pane When Area Fixed To Vessel is switched off the zoomed area will follow the Inspection view data from right towards left 7 Select Cl...

Страница 104: ... presentations page 108 Choosing the colours used to present the echoes page 109 Selecting measurement units page 109 Configuring the environmental parameters page 110 Setting up the alarm limits for system protection page 111 Defining the middle position of the transducer page 112 Selecting menu language You may prefer to use the SN90 with a user interface in your own language The Language functi...

Страница 105: ...mation Context The menu system is by default located on the right side of the SN90 presentation The menus are organized in a tree structure with a main menu a set of secondary menus and several menu buttons Tip The Menu on the right side option is provided in the Display Options dialog box By deselecting this function the entire menu system is placed permanently on the left side of the SN90 presen...

Страница 106: ...formation to appear on the top bar The top bar can contain various information You can select which elements that will be shown at the top of the SN90 presentation Context The General page offers a range of on off switches Some of these on off switches are used to enable or disable the information shown on the top bar Note The information shown on the SN90 top bar must not be used for vessel navig...

Страница 107: ...ns dialog box opens 3 Select General to open the page 4 Select UTC Time to enable Coordinated Universal Time UTC 5 Select OK to save the selected settings and close the dialog box Related topics Defining settings related to user preferences and individual customizing page 102 Selecting which tooltips to appear in the user interface When you move the cursor over the echoes in the SN90 presentation ...

Страница 108: ... on the Operating Panel The buttons on the Operating Panel have built in backlight to improve visibility on a dark bridge Context Use Panel Backlight to control the intensity of the lights Procedure 1 Open the Display menu 2 Select Panel Backlight 3 Adjust the background illumination to suit your preferences and the ambient light conditions To change the setting move the cursor to either side of t...

Страница 109: ... side of the button to increase the value Select the middle of the button to open it If you have a keyboard connected to the SN90 type the requested value Related topics Defining settings related to user preferences and individual customizing page 102 Increasing the visibility of the information panes When you open an information pane you will see that it is transparent This transparency allows yo...

Страница 110: ...kin used in the SN90 presentations Depending on the ambient light it is possible to change the SN90 presentation colours to help you see the information The Palette function allows you to choose which colour theme skin to be used by the SN90 Context Select a palette to suit the ambient light conditions and your personal preferences The choice you make does not have any effect on the SN90 performan...

Страница 111: ...n the standard 12 colour scale Additional colours have been added between them to make smoother colour transitions Procedure 1 Open the Display menu 2 Select Colour Setup Observe that the Colour Setup dialog box opens 3 Under Echo Colours choose the colour scale you want to use 4 Under Colour Brightness choose how intense you want these colours to appear 5 At the bottom of the dialog box select Ap...

Страница 112: ...ing settings related to user preferences and individual customizing page 102 Configuring the environmental parameters Environmental parameters such as salinity and sound speed play an important part to present accurate echo data Use the Environment parameters to define these values Depending on the current sea and weather conditions you may need to change these values frequently Context In order t...

Страница 113: ...sition for when the transmissions start When the transducer is retracted transmissions will stop when the transducer reaches the same position Tx Inhibit Power The high voltage supplied to the transceiver boards is monitored If this voltage differs from the defined tolerances an alarm message will be initiated You are not permitted to change the limit values Tx Inhibit Firmware The firmware on the...

Страница 114: ...to a middle position may be useful if you use the SN90 simultaneously with other sonars A higher position will permit you to increase the vessel speed If you operate in very shallow waters you may also reduce the risk of hitting bottom However placing the transducer immediately under the hull may increase the flow noise Caution If the transducer hits larger objects or bottom the transducer shaft m...

Страница 115: ...the left side a On the left side of the Installation dialog box select System Protection to open the page b Make sure that the upper limit of the Tx Inhibit Hull Unit Position does not exceed the middle position c Adjust the setting if it is necessary d At the bottom of the page select Apply to save your settings e Close the Installation dialog box 7 Lower the transducer to its middle position 8 S...

Страница 116: ...can be related to different operations environmental conditions or basic personal preferences You can use different settings to create as many user profiles as you like and give them any name All the settings you have chosen using functions and dialog boxes in the SN90 user interface are saved Procedure 1 Observe the Main menu Its default location is on the right side of the SN90 presentation 2 Se...

Страница 117: ...tivate either a factory or a saved setting click the relevant name in one of the lists then click the Activate Selected Setting button Tip The Operating Panel allows you to assign certain functions to dedicated buttons and switches This includes user settings Once the requested functionality has been defined simply press the button to make your choice The Operating Panel page is used to assign fun...

Страница 118: ...Procedure 1 Observe the Main menu Its default location is on the right side of the SN90 presentation 2 Select User Settings Observe that the User Settings dialog box opens 3 Observe the list of previously saved user settings in the Saved Settings list 4 Select the setting you wish to rename 5 Select Rename A small dialog box opens to accept the new name 6 Type a name for the user setting Note If y...

Страница 119: ...SN90 user interface are saved To delete a user setting select its name in the list and then select Delete The factory settings can not be deleted Note There is no undo Procedure 1 Observe the Main menu Its default location is on the right side of the SN90 presentation 2 Select User Settings Observe that the User Settings dialog box opens 3 Observe the list of previously saved user settings in the ...

Страница 120: ...u have chosen using functions and dialog boxes in the SN90 user interface are saved To activate either a factory or a saved setting click the relevant name in one of the lists then click the Activate Selected Setting button The factory settings cannot be altered Note Unless they are saved all your current settings are lost when the factory settings are applied There is no undo Procedure 1 Observe ...

Страница 121: ...ng Panel and the menu system shown in the SN90 presentation Tip You can also use a standard computer mouse to control the SN90 The mouse can be connected to either the Operating Panel or directly to the Processor Unit The SN90 supports two different operating panels These are referred to as Mk1 and Mk2 Mk1 The Operating Panel is connected to the Processor Unit with three cables The dual interface ...

Страница 122: ...s Defining the user selected features on the Operating Panel page 119 Assigning custom user settings to the Operating Panel The User Settings dialog box is used to store your favourite SN90 settings These settings can be related to different operations environmental conditions or basic personal preferences You can use different settings to create as many user profiles as you like and give them any...

Страница 123: ...rocedure 1 Open the Setup menu 2 On the Setup menu select Installation Observe that the Installation menu opens This dialog box contains a number of pages selected from the menu on the left side 3 On the left side of the Installation dialog box select Operating Panel 4 Select Operating Panel Mk2 5 Under User Setting Buttons assign one predefined setting to each button on the Operating Panel 6 At t...

Страница 124: ...stallation Observe that the Installation menu opens This dialog box contains a number of pages selected from the menu on the left side 3 On the left side of the Installation dialog box select Operating Panel 4 Select Operating Panel Mk2 5 Under Rotary Switch Options assign one function to each rotary switch on the Operating Panel The following functions can be controlled Horizontal Range Range set...

Страница 125: ...pens This dialog box contains a number of pages selected from the menu on the left side 3 On the left side of the Installation dialog box select Operating Panel 4 Select which operating panel to use 5 Under Button Options assign one function to each Fx button on the Operating Panel The following functions can be controlled Auto Tilt This is an on off function In Auto Tilt mode the beam automatical...

Страница 126: ...uare symbol to the vessel s current position in the SN90 presentation The own ship marker is now regarded as an object All information about the object is shown in the Objects menu listed as OSM Use Delete Own Ship Marker on the shortcut menu to delete the marker from the current view 6 At the bottom of the page select Apply to save your settings 7 Continue your work in the Installation dialog box...

Страница 127: ...om the sonar room Topics Lowering and hoisting the transducer using the Hoist Lower Switch page 126 Lowering and hoisting the transducer using the hand crank page 128 Emergency lowering and hoisting using the two contactors page 130 Operating procedures ...

Страница 128: ...h S302 in the upper part of the cabinet to control lowering and hoisting For normal operation from the Operating Panel the switch must be set to REMOTE Procedure 1 Make sure that you have sufficient water depth below the keel before you lower the transducer If your vessel is in dry dock make sure that you have sufficient height between the hull and the dry dock floor The space under the hull must ...

Страница 129: ...position HOIST Hoisting is automatically stopped when the Upper Limit Switch is activated If necessary the transducer can be stopped in any position by setting the Hoist Lower Switch to STOP b Set the switch to position STOP 6 Locate the Hoist Lower Switch S302 Set the switch to position REMOTE Note For normal operation from the Operating Panel the switch must be set to REMOTE 7 Close the cabinet ...

Страница 130: ...nk must always be placed inside the Motor Control Unit When removed from its storage position the hand crank releases a safety switch which disables hull unit operation Procedure 1 Make sure that you have sufficient water depth below the keel before you lower the transducer If your vessel is in dry dock make sure that you have sufficient height between the hull and the dry dock floor The space und...

Страница 131: ...er is fully retracted b Loosen the brake release screw to engage the motor brake c Check with the hand crank to ensure that the motor brake is engaged d Remove the hand crank from the stub shaft and mount it in its storage position in the Motor Control Unit e Activate the Motor Protecting Switch S301 by pressing the operating handle to ON 8 Make sure that the Hoist Lower Switch is set to REMOTE No...

Страница 132: ...ail in the Motor Control Unit Left side When activated the Hoisting Contactor K301 starts the motor in order to hoist the transducer Right side The Lowering Contactor K302 starts the motor to lower the transducer WARNING This operation overrides the upper and lower limit switches The contactors must be released before the transducer reaches upper or lower position Failure to do so may result in se...

Страница 133: ...river and press the spring return actuator to apply voltage to the motor d Lower the transducer and STOP before you reach the bottom position 5 Hoisting the transducer a Locate the Hoisting Contactor K301 on the left side b Open the transparent plastic cover on the front of the contactor c Use a small screw driver and press the spring return actuator to apply voltage to the motor d Hoist the trans...

Страница 134: ...n the serial and LAN ports use the I O Setup page To select which sensors to install use the Sensor Installation page The Sensor Configuration page allows you to define a datagram priority so that the information from the most reliable sensor is used by the SN90 You can also define manual values in case a sensor is unserviceable or not installed Prerequisites The new sensor is physically connected...

Страница 135: ...riority of the datagrams and set up relevant configuration parameters i At the bottom of the page select Apply to save your settings 4 Repeat for each sensor interface that you need to set up 5 Continue your work in the Installation dialog box or select OK to close it Related topics Setting up the interfaces to peripheral devices page 132 Defining the serial and Ethernet LAN port parameters For an...

Страница 136: ...ure 1 Open the Setup menu 2 On the Setup menu select Installation Observe that the Installation dialog box opens This dialog box contains a number of pages selected from the menu on the left side 3 On the left side of the Installation dialog box select I O Setup 4 Observe that the available serial and network interface ports on the Processor Unit are listed 5 Set up the relevant serial or Ethernet...

Страница 137: ...formats You know how to set up the parameters for serial and local area network LAN communication The interface port is set up with the correct communication parameters The SN90 system is turned on and operates normally The new sensor is physically connected to the SN90 using a serial or network cable It is switched on and in normal operation Neither tools nor instruments are required Context The ...

Страница 138: ...ect Monitor The Port Monitor dialog box provides one text box for incoming messages Rx Data and one for outgoing messages Tx Data Use these boxes and your knowledge of the data communication to investigate the datagrams The Port Monitor dialog box is a tool for debugging purposes It is neither required nor intended for normal operation of the SN90 9 Type a custom name to identify the interface in ...

Страница 139: ... box select Sensor Configuration Define the priority of the datagrams and set up relevant configuration parameters Related topics Setting up the interfaces to peripheral devices page 132 Setting up the interface for speed log input In order to operate correctly the SN90 requires input from a speed log In most cases a suitable sensor is already installed on the vessel A global positioning system GP...

Страница 140: ... selecting OK at the bottom of the page will not install anything Select what to install define the relevant parameters and then select Add Procedure 1 Connect the speed log to an available communication port on your Processor Unit This is described in the SN90 Installation manual 2 Open the Setup menu 3 On the Setup menu select Installation Observe that the Installation dialog box opens This dial...

Страница 141: ...elect OK to close it Further requirements On the left side of the Installation dialog box select Sensor Configuration Define the priority of the datagrams and set up relevant configuration parameters Related topics Setting up the interfaces to peripheral devices page 132 Setting up the interface for course gyro input In order to operate correctly the SN90 requires input from a course gyro In most ...

Страница 142: ...es that define the sensor s physical location relative to your vessel s coordinate system Note Just making changes and selecting OK at the bottom of the page will not install anything Select what to install define the relevant parameters and then select Add Procedure 1 Connect the gyro or other heading sensor to an available communication port on your Processor Unit This is described in the SN90 I...

Страница 143: ...curacy offered by the SN90 is directly related to the accuracy of the information you enter on the Sensor Installation page 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 sensor 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...

Страница 144: ...racy etc the numerical values provided can be different from one sensor to another Several sensor are provided on the Sensor Configuration page one for each type of information Select the sensor you wish to configure in the Sensor list For each type you can define a priority sensor by rearranging the datagrams in a list You can also define manual values in case a sensor is unserviceable or not ins...

Страница 145: ...to set up 10 Continue your work in the Installation dialog box or select OK to close it Related topics Setting up the interfaces to peripheral devices page 132 Setting up the input from a motion reference unit MRU The information from a motion reference unit MRU normally heave roll and pitch information is imported into the SN90 to increase the accuracy of the echo data The current roll and pitch ...

Страница 146: ...cal area network LAN or serial port on your Processor Unit Procedure 1 Connect the motion sensor system to an available communication port on your Processor Unit This is described in the SN90 Installation manual 2 Open the Setup menu 3 On the Setup menu select Installation Observe that the Installation dialog box opens This dialog box contains a number of pages selected from the menu on the left s...

Страница 147: ...the interfaces to peripheral devices page 132 Setting up the SN90 in a synchronized system If you want to use the SN90 as a master or slave in a synchronized system you must set it up for such operation To do this you must select which communication port to use for the synchronization interface and you must select the requested synchronization mode Prerequisites This procedure assumes that The ves...

Страница 148: ...ted from the menu on the left side 5 On the left side of the Installation dialog box select Synchronization 6 Select Synchronization Mode Stand alone Synchronization is turned off This synchronization mode is used if the SN90 is working by itself and with no synchronization required This is the default setting The SN90 operates using its internal ping interval parameters independent of any trigger...

Страница 149: ...is often referred to as a pre trigger Note This delay will only work when the synchronization is set up using a serial port Slave In Slave mode the SN90 waits for the delay time after the external trigger signal has arrived before transmitting the ping This is often referred to as a post trigger 8 From the list of ports available select Synchronization Port This is the interface port currently use...

Страница 150: ...nce usually refers to the interaction of waves that are correlated or coherent with each other either because they come from the same source or because they have the same or nearly the same frequency Interference effects can be observed with all types of waves for example light radio acoustic surface water waves or matter waves https en wikipedia org wiki Interference_ wave_propagation April 2016 ...

Страница 151: ...nal ping interval parameters and send trigger signals to the peripheral system s This mode is unavailable if you set Synchronization Port to Transceiver Auxiliary Port Slave Slave mode is used if the SN90 is going to transmit only when permitted by a peripheral system When Slave mode is selected the SN90 does not transmit ping unless an external trigger appears on the chosen synchronization port T...

Страница 152: ...ster and the other as a Slave When the SN90 is Master in a system the synchronization can either take place in Free running mode or in Wait for slave mode Slave mode When the SN90 is set up in Slave mode it must receive a trigger signal from a peripheral system every time the SN90 is going to transmit This trigger signal is connected to a serial port on the Processor Unit and the Clear To Send CTS...

Страница 153: ...tems The return from the Ready to Send RTS outputs on the Slave systems can not be connected Related topics Setting up the SN90 in a synchronized system page 148 Selecting synchronization port If you want to use the SN90 as a master or slave in a synchronized system you must set it up for such operation To do this you must select which communication port to use for the synchronization interface an...

Страница 154: ...mode Prerequisites Neither tools nor instruments are required The SN90 system is turned on and operates normally For slave operation a remote system for example K Sync or Simrad TU40 must be available to provide trigger pulses For master operation a remote hydroacoustic system sonar echo sounder is connected This remote system must be set up in slave mode The communication port on the Processor Un...

Страница 155: ...ation Port to Transceiver Auxiliary Port Slave Slave mode is used if the SN90 is going to transmit only when permitted by a peripheral system When Slave mode is selected the SN90 does not transmit ping unless an external trigger appears on the chosen synchronization port The peripheral system may be any other hydroacoustic product for example an echo sounder or sonar or even a dedicated synchroniz...

Страница 156: ...55 Using the smart menu buttons page 156 Main menu page 158 Operation menu page 160 Display menu page 162 Setup menu page 165 Active menu page 169 Objects menu page 172 Visual Objects menu page 176 Cosmetics menu page 179 Shortcut menus page 181 Simrad SN90 Operator Manual ...

Страница 157: ...he recording functionality and how the SN90 transmits ping into the water B Display menu The Display menu provides basic functions related to the screen behaviour and presentation of SN90 data C Setup menu The Setup menu provides basic functions related to the SN90 installation parameters and its communication with peripheral systems D Active menu The Active menu offers parameters related to curre...

Страница 158: ...tton to open the button menu Choose the required setting Select the button to open the dialog box Choosing a setting with the and buttons 1 To change the setting move the cursor to either side of the button 2 Observe that the background colour changes a Select the left side of the button to decrease the numerical value b Select the right side of the button to increase the numerical value Choosing ...

Страница 159: ...l If you select Apply to All your setting is applied to all the views simultaneously 4 Whenever applicable you can make a selection by selecting the left or right side of the button This method does not show you the menu choices a Select the left side of the button to select a lower menu choice b Select the right side of the button to select a higher menu choice Selecting settings using a dialog b...

Страница 160: ...e the cursor to that position Below the Main menu you find the icons for opening and closing the secondary menus Select an icon to open the relevant menu and reselect the icon to close the menu User Settings The User Settings dialog box allows you to save the current user settings your current selection of operational parameters and to retrieve factory or previously saved user settings Range The R...

Страница 161: ...rizontal view in the SN90 presentation covers the entire 160 sector For the other views you must define the horizontal direction of the beam Use Bearing to adjust the horizontal angle referenced to the vessel heading Menu system ...

Страница 162: ...d dialog box refer to the SN90 Reference manual or the context sensitive on line help Tip If you do not need to use the menu system you can hide it This allows more space for the SN90 presentation Use Menu on the top bar to hide or show the menu When the menu system is hidden it appears temporarily on the left or right hand side of the screen if you move the cursor to that position Operation The O...

Страница 163: ...381295 B 161 Tx Power Use Tx Power to increase or decrease the output power The output power is selected from predefined steps Menu system ...

Страница 164: ...ursor to that position The choices in the this menu depends on which view in the SN90 presentation that is currently active The menu may therefore change from one view to another The screen capture may not show you all the menu choices Visual Objects Visual Objects is an on off button used to open the Visual Objects menu The Visual Objects menu controls which graphical elements that are shown in t...

Страница 165: ...of the menu You can select which navigational information to be shown on the top bar You can also choose to see Coordinated Universal Time UTC at the bottom of the presentation Tooltip When you move the cursor over the echograms in the SN90 presentation small tooltips are shown to provide additional information The Tooltip page controls which tooltips that are shown Track Line The track history li...

Страница 166: ...erent sizes With the Docking Views function you can move and re size the views in the SN90 presentation About Every SN90 software release is uniquely identified The About dialog box identifies the current SN90 software version with its release date The version described in this Operator Manual is 3 1 4 Simrad SN90 Operator Manual ...

Страница 167: ...osition Bottom Filter Threshold The SN90 provides a bottom filter to reduce the sometimes powerful echo from the seabed This filter is useful if you try to find fish close to the bottom Select a Bottom Filter Threshold value to control the strength of the filter A higher numerical increases the filter efficiency and reduces the bottom echo accordingly Tracking Area Use Tracking Area to define the ...

Страница 168: ...unit may be provided as an optional method to lower and hoist the transducer A motion sensor for electronic stabilization of the sonar beams is provided as a part of the hull unit In case of a faulty motion reference unit this functionality can be turned Off A suitable external sensor must then be used Screen Captures While using the SN90 you may wish to make a screen capture to save an instantane...

Страница 169: ...st be connected Typical sensors are those that provide speed heading and geographical position On the Sensor Installation page you define which external sensors your SN90 will import information from You must also decide which datagram formats that will be accepted Once a sensor has been chosen you must select the offset values that define the sensor s physical location relative to your vessel s c...

Страница 170: ...ydroacoustic instruments within the same frequency range Units The SN90 user interface presents many measurements These measurements are for example related to depth range and distance From the Units page you control which units of measurements that are used Operating Panel The Operating Panel must be connected to the Processor Unit through a serial port Beam Direction The purpose of the Beam Dire...

Страница 171: ...ion The choices in the this menu depends on which view in the SN90 presentation that is currently active The menu may therefore change from one view to another The name of the currently active view is identified at the top of the menu The screen capture may not show you all the menu choices Note Before you can change the settings related to a view you must click inside the view to activate it The ...

Страница 172: ...ns of the Horizontal Tx Sector function you can change this opening angle to 90 120 or 160 Vertical TX Sector The SN90 transmits in a swath with maximum vertical opening angle 160 By means of the Vertical Tx Sector function you can change this opening angle to 80 or 120 Range Projection The distance to a target located anywhere in the water column can be measured in two ways This can either be the...

Страница 173: ...s dialog box Use the Information Pane Options dialog box to change the operating parameters for the data provided in the information panes The Information Pane Options is only available in Inspection views Size Distribution The Size Distribution information pane shows a histogram of the echoes detected from single fishes The calculations are based on the fact that different fish species have diffe...

Страница 174: ...position In this context the phrase marker is used to identify a visual symbol placed in the SN90 presentation By placing a marker on the echo it is regarded as an object that you can act upon If relevant you can further classify the object as a target The phrase target is used to identify an echo in the SN90 presentation that you wish to act upon The echo may be from a material item a shallow ree...

Страница 175: ...eft side of any object to mark it for deletion or to save it Select the object line to activate the control buttons and to retrieve information about the object Select All Click Select All to select all the markers in the list Delete Select Delete to delete all the markers you have selected in the objects list Each marker is removed both from the list and from the SN90 presentation New Select New ...

Страница 176: ...Audio to disable the audio D Alarm History All alarms are presented under the Alarms tab in the Messages dialog box Select Alarm History to open the Messages dialog box Object information In the object list select the object line to retrieve object information about that particular object Some information is only available for an object that is subjected to target tracking Position Two fields pres...

Страница 177: ...if you have computer keyboard connected to your Processor Unit Insert Relative Position Select Insert Relative Position to insert object information into the comment field The information is inserted as a text string that contains the following information UTC Time Relative bearing Range to own ship Depth Menu system ...

Страница 178: ...ich view in the SN90 presentation that is currently active The menu may therefore change from one view to another The screen capture may not show you all the menu choices Note 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 ...

Страница 179: ...symbols are shown in the currently active view Select Apply to all if you wish to use the chosen setting in all the views in the SN90 presentation Tracks When you start target or position tracking a marker is used to identify the object Each marker is shown as a small circle with or without a short identifying text Use this function to control if and how the tracking markers are shown in the curre...

Страница 180: ...he bow of the vessel symbol The line reflects your vessel s current heading Do not confuse this line with the bearing line Current Vector This function shows you the speed and direction of the water current under your vessel The function draws a line starting under the vessel symbol The direction of the line indicates the direction of the water current The length of the line reflects its speed For...

Страница 181: ...erefore change from one view to another The screen capture may not show you all the menu choices Note 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 prese...

Страница 182: ... sonar beams is limited by the chosen transmit sector angle To make it easier to recognize the area limits dedicated border lines may be added to the presentation These lines are used to outline the sector Use this function to toggle the coverage plot lines On or Off Simrad SN90 Operator Manual ...

Страница 183: ... be classified as targets and whether you shall start target tracking If you have placed markers on several echoes to make them objects you can select one of these and give it priority status The bearing line in the relevant SN90 views will automatically be locked on the object with this priority to reflects its bearing Only one single object can be given priority status The priority is identified...

Страница 184: ...s menu listed as OSM Delete Own Ship Marker Use Delete Own Ship Marker on the shortcut menu to delete the marker from the current view Place Marker Continuous Place Marker Continuous is an on off switch When enabled left click in a SN90 view to add new marker Each click produces a new marker Place Circle Marker Press Circle Marker on the Operating Panel or select Place Circle Marker to add a circu...

Страница 185: ...ers allows you to delete all the rulers in the current view Ship To Centre Select Ship to Centre to move the own ship symbol back to the centre of the view This function is typically used when you have used the Set New Ship Centre function to move the ship symbol away from the centre of the view Reset Ship Centre This function is useful when you need to reset the view after using the Set New Ship ...

Страница 186: ... 2020 Kongsberg Maritime ...

Страница 187: ......

Страница 188: ...Simrad SN90 Purse Seine and Trawling sonar Operator Manual ...

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