Page 1 Reference manual Simrad SH90 Fish finding sonar www.simrad.com T E C H N O L O G Y F O R S U S T A I N A B L E F I S H E R I E S...
Page 3 This manual provides you with reference information required to operate and fully understand the commands, menus, operational modes and options provided by the Simrad SH90. For user information in brief, refer to the Simrad SH90 Operator manual. WARNING: The Simrad SH90 sonar must never be powered up when the ship is in dry dock.
Page 4 If you require maintenance or repair, contact your local dealer. You can also contact us using the following address: contact@simrad.com. If you need information about our other products, visit our web site. On the web site you will also find a list of our dealers and distributors.
Page 5: Table Of Contents
Reference manual Table of contents ABOUT THIS MANUAL ............. 11 SIMRAD SH90 ..............12 Important matters ....................12 Basic information ....................13 Main units.......................13 Wheelhouse units..................14 Sonar room units..................15 System diagram ......................17 Basic functionality....................17 Omni beam....................18 Stabilisation system ..................19 Reception ....................
Page 6 Simrad SH90 How to hide the menu ................. 40 How to simplify the menu ................40 Gain adjustment procedures ...................41 How to adjust the gain................. 41 How to adjust the AGC ................42 How to adjust the RCG ................42 How to adjust the TVG ................
Page 7 Reference manual Software procedures ....................60 Backup and restore ..................60 Creating a backup image DVD ..............60 Restore from a backup image DVD.............. 60 How to reactivate your Windows license ............61 DISPLAY MODES ............. 67 How to choose display mode..................67 Bow up ........................69 Bow up/Audio ......................70 Bow up/Vertical ......................71...
Page 8 Simrad SH90 System Test menu ..................104 Sort Modes menu..................106 Pop-up menus .......................106 View pop-up menu..................107 Catch View pop-up menu ................108 Object pop-up menu.................. 108 View menus ......................110 GeoView menu ..................110 VerticalView menu..................111 CatchView menu ..................112 Messages ......................
Page 9 Reference manual Inspect Object................... 139 Language ....................140 Menu ....................... 141 Message Bar..................... 141 Middle Pos(ition)..................142 Mode ....................... 143 Mode Buttons ................... 144 Movements ....................144 Noise Filter ....................145 Palette...................... 146 Panel Backlight ..................146 PP Filter....................147 Pulse Form ....................
Page 10 Simrad SH90 Zoom ....................... 175 Zoom Scale ....................176 BASIC THEORY.............. 177 Settings .........................177 What is TVG? ..................177 What is AGC? ..................178 What is the PP Filter?................178 About pulse form and length..............178 About beam widths ................... 178 About Gain....................
Page 11 Reference manual Hull unit familiarization ................194 Motor Control Unit familiarization............. 195 Fuses in the Motor Control Unit..............196 Hoisting and lowering from the sonar room ..........197 Motor protecting switch (S301) ..............201 Docking the vessel ..................201 Cleaning the transducer ................203 Air bleeding .....................
Page 12 Simrad SH90 323775/A...
Page 13: About This Manual
The purpose of this reference manual is to provide the descriptions, procedures and detailed parameter explanations required to allow for safe and efficient use of the Simrad SH90, as well as a thorough understanding of the system parameters and adjustments.
Page 14: Simrad Sh90
Simrad SH90 SIMRAD SH90 Study this chapter to familiarize yourself with the Simrad SH90. Topics • Important matters on page 12 • Basic information on page 13 • Main units on page 13 • System diagram on page 17 •...
Page 15: Basic Information
If you think that something has been damaged on the sonar, contact your local dealer for advice. Basic information The Simrad SH90 is an omnidirectional high frequency sonar. It is designed for all sized fishing vessels, both purse seiners and trawlers.
Page 16: Wheelhouse Units
Windows XP® operating system. It is designed for rugged use. The computer is based on a commercial design, but the software and hardware has been specified and assembled by Simrad to suit the SH90 requirements. The computer holds a DVD player for use with future software upgrades.
Page 17: Sonar Room Units
Simrad SH90 The purpose of this computer is to allow you to control the sonar. The computer serves several functions. • It controls the overall operation of the sonar functions. • It provides the graphic presentation of the sonar modes and echoes.
Page 18 Simrad SH90 WARNING The power supply cabinet contains high voltages. Do not open the cabinet door while the SH90 is switched on. Hull Unit is designed to lower the transducer 1.0 meters Hull Unit below the ship’s hull. The transducer can also be lowered to any selected middle position.
Page 19: System Diagram
Hull Unit Transducer Basic functionality The basic principles of the Simrad SH90 are unique because of the 480 transmitter and 480 receiver channels with their transducer elements spread around on the cylindrical transducer. The transmission, reception and data processing are under...
Page 20: Omni Beam
Simrad SH90 Omni beam When the Omni beam is tilted, the total beam picture can be compared with folding an umbrella, which means that all beams in 360 degrees around the vessel have the same tilt angle. Figure 4 Omni beam principle The beam can be tilted from +10 up to -60 degrees down.
Page 21: Stabilisation System
Stabilisation system The Simrad SH90 is provided with a stabilisation system. When the beam stabilizer is activated, both horizontal and vertical beams will be stabilized electronically for roll and pitch movements up to ±20 degrees.
Page 22: Reception
The RCG filter must therefore be used with care if scattered schools are to be detected. Ping-to-ping filter Thee Simrad SH90 is equipped with a ping-to-ping filter (PP Filter) to provide a clean and steady presentation by reducing the interference and noise. This filter compares the echoes from a...
Page 23: Transmission
Optional functionality The Simrad SH90 is a single 114 kHz sonar with beam stabilisation. The options described below are preprogrammed into the standard software version, and a code word is required to make the actual option available.
Page 24: Scientific Output
The scientific output option may also include software for a Scientific Data Logger. Peripheral equipment The Simrad SH90 requires connection to a speed log and a course gyro. An inaccurate log or gyro input will cause inaccurate indication of the vessel and target movements.
Page 25: Support Information
Simrad SH90 Support information If you need additional technical support for your Simrad SH90 you must contact your local dealer, or one of our support departments. Norway (Main office) • : Strandpromenaden 50, 3190 Horten, Norway Address • : +47 33 03 40 00 Telephone •...
Page 26: Getting Started
Simrad SH90 GETTING STARTED Please find the basic information required to get you started up with the Simrad SH90. Topics • Operating Panel on page 24 • Power on/off procedures on page 25 • How to perform basic operations on page 27 •...
Page 27: Power On/Off Procedures
Getting started : Separate range control for horizontal and vertical Range sonar presentation. : Menu and cursor control. Cursor : Easy control of the sonar’s tilt angle, or start automatic Tilt search program. : Store interesting screen captures, and zoom in on Various details.
Page 28: How To Switch Off The Sonar
Simrad SH90 Press the button on the control panel to lower the Down transducer. • The green lamp next to the button will flash, and an audible signal indicates that the transducer is lowered. • When the lower position has been reached, the lamp...
Page 29: How To Perform Basic Operations
Getting started Please note: • If the sonar is switched off uncontrolled with the transducer in its lowered position, the transducer will normally be hoisted automatically after approximately one minute. You must however verify that this takes place. If the transducer is not hoisted automatically, it can be raised manually by means of the hoist/lower switch in the Motor Control Unit.
Page 30 Simrad SH90 On the display, observe that the menu disappears. When the menu is removed the echo presentation is extended to cover the entire display. Use the trackball, and move the cursor over to the left or right side of the display.
Page 31: The Menu Structure
Getting started The menu structure The menu contains several different buttons, tabs and parameter dialogs. Figure 11 Menu structure : This field simply states the name of the Sonar type sonar. : Click here to change display mode. If you Mode click on the middle of the button you will open a dedicated menu for mode selection.
Page 32: Control The Cursor
Simrad SH90 Control the cursor Operate the trackball (A) on the Operating Panel. Observe that the cursor moves on the sonar display, and that it changes its form depending on its location. Observe the location of the button (B). Select Press this button to make a selection.
Page 33: Changing A Parameter Value
Getting started Position the cursor on the centre of the menu button (C). Observe that the shape of the cursor changes to a “menu” symbol. This means that the applicable parameter dialog will open when you press the button. The dialog appears in the lower part of Select the menu field.
Page 34: Visual Aids
Default setting Setup dedicated parameter dialog is used. In the Simrad SH90 sonar, all parameters are stored. This function will cause the sonar to remember all the selected parameter settings, even when the sonar is switched off. Visual aids...
Page 35: Moving The Boundary Lines
Getting started Moving the boundary lines In most display modes with multiple views, the size of each view can easily be modified by moving the boundary line between the views. Observe the following procedure: Place the cursor on the boundary line. Observe that it changes its shape to a double arrow (↔).
Page 36 Simrad SH90 Figure 14 Bearing Card (A), Wind Marker (B) and Distance Rings (C) (A) shows the current bearing relative to the Bearing Card vessel. The markers are shown as short white lines for every 10th degree along the outer circle of the sonar view.
Page 37 Getting started Figure 15 Variable Range Marker (D), Compass Card (E) and Vertical Ring (F) (D) consists of an adjustable Variable Range Marker (VRM) range ring with range read-out. It can be used for any type of distance marking relative to the vessel. To adjust the marker, locate the cursor on the marker ring, press the on the Select...
Page 38: On-Line Help
On-line help The Simrad SH90 sonar is equipped with a comprehensive on-line help system. Help is provided in two levels: On-line and Free. It is available from all the parameter dialogs and menus by clicking the button.
Page 39 Getting started information is made available using the menu on the left hand side and interactive links throughout the document. Click Free in the bottom left corner to return to the small on-line parameter dialog, or to exit the interactive manual. Close Note If you click...
Page 40: Operational Procedures
Simrad SH90 OPERATIONAL PROCEDURES This chapter presents how to perform the most common procedures on the SH90 sonar. Note that the power on/off procedures have been previously explained. Topics • Power on/off procedures on page 38 • Menu procedures on page 40 •...
Page 41: How To Switch Off The Sonar
Operational procedures • If the sonar system has been disconnected from AC power, the Processor Unit must be started manually. Use the on/off switch behind the lid on the front panel. Check that the water depth beneath the keel is sufficient to lower the transducer.
Page 42: Menu Procedures
Simrad SH90 Please note: • If the sonar is switched off uncontrolled with the transducer in its lowered position, the transducer will normally be hoisted automatically after approximately one minute. You must however verify that this takes place. If the transducer is not hoisted automatically, it can be raised manually by means of the hoist/lower switch in the Motor Control Unit.
Page 43: Gain Adjustment Procedures
Operational procedures In the parameter dialog, select the menu level you wish to use. Click to exit. Close Gain adjustment procedures This section explains how to control the manual and automatic gain settings on the SH90 sonar. How to adjust the gain You can adjust the sonar gain by means of the control buttons on the Operating Panel, or by using the button on the...
Page 44: How To Adjust The Agc
Simrad SH90 How to adjust the AGC (Automatic Gain Control) adjusts the gain in the sonar’s preamplifier circuitry. This gain depends on the strength of the incoming echo signal. The result is a filter effect, reducing noise and reverberation. The has four different settings.
Page 45: How To Adjust The Tvg
Operational procedures How to adjust the TVG (Time Varied Gain) controls the gain in the signal amplifier. The gain is weakest just after the ping, and increases in accordance with time (and therefore range). A number of standard gain curves are available, as well as Off. By using TVG, the gain is adjusted in such way that a school of fish will be presented with approximately the same strength on the screen in any position inside the regulated TVG range of 1000 meters.
Page 46: How To Define The Function Of The Mode Buttons
Simrad SH90 Press one of the four buttons to choose mode. Alternative method Locate the button on the top of each menu. Mode Click the button to choose operational mode. Mode Click the left or right side of the button to choose...
Page 47: Markers And Symbols Procedures
Operational procedures Click the button to move the chosen Move down Move up operational mode down or up the list. When the list has been arranged in the order you wish to keep, click Apply The current order is saved automatically. Click to exit.
Page 48: How To Add An 'Own Ship' Symbol
Simrad SH90 About Circle markers This button places a at the cursor location. Circle marker A circular symbol will appear on the screen at the chosen location. The size of the symbol is equal to that of the purse seine selected. This marker may be used to estimate the size of a school of fish or as an indication of the size of the purse seine.
Page 49: How To Investigate Marker And Symbol Information
This is a useful aid in providing an overview of the trawl operation. Trawl data can be set manually using the menu or automatically by interfacing a Simrad FS trawl sonar or Simrad ITI trawl monitoring system with the sonar.
Page 50: How To Delete A Marker Or Symbol
Simrad SH90 • The identification (ID) abbreviations for the different objects are: – AT: Automatic target track marker – Ci: Circle marker – M: Target marker – OS: Own Ship marker – PT: Position track marker – F: Radio buoy marker •...
Page 51 Operational procedures Prepare the recording parameters Click the tab to open the menu. Setup Click the button to open the menu. Store/Recall Store/Recall Click the button to choose recording mode. Store mode Click the left side of the button to scroll down Store mode the list of options.
Page 52: How To Recall Sonar Images
Simrad SH90 Press the button on the Operating Panel. Record How to recall sonar images Observe the following procedure to recall sonar images. Preparations Click the tab to open the menu. Setup Click the button to open the menu. Store/Recall...
Page 53: How To Keep Sonar Images
Operational procedures How to keep sonar images When you store new sonar images, they will by default be added to the list of . This list will contain maximum 100 Temporary files images, and when this limit has been reached, the oldest files will be automatically removed.
Page 54: How To Print Sonar Images
Simrad SH90 Click the necessary characters on the on-line keyboard to build a new file name. Click the button in the parameter dialogue when you Close have completed the new file name. Figure 18 On-screen keyboard You are also permitted to change the file name on images in the field.
Page 55: How To Copy Sonar Images To A Usb Memory Stick
Operational procedures Observe that the operating system’s auto-start function opens a dialogue requesting guidance. Select , and Open writable CD folder using Windows Explorer click Observe that a window opens. Windows Explorer By means of normal Windows functions, navigate to the folder d:/winson/screendumps.
Page 56: Automatic Search And Tracking Procedures
Simrad SH90 Automatic search and tracking procedures The SH90 sonar provides you with two automatic search programs, horizontal and vertical. Both are initiated from the Operating Unit How to start the horizontal search program Observe the following procedure to run the automatic search program.
Page 57: How To Enable Position Track
Operational procedures Observe that the vertical opening angle of the search sector is adjusted accordingly. Release the button, press and hold one of the two Auto buttons. “arrow” Observe that the centre of the vertical search sector is adjusted accordingly. To exit the search program, press the button.
Page 58: How To Add A Target Tracking Line
Simrad SH90 Figure 19 Target tracking with related symbols The vector (C) originating from the target’s centre indicates its course and speed. The length of the vector increases relative to the target’s speed. One knot is represented by a small mark on the vector.
Page 59: User Setting Procedures
Operational procedures Observe that the parameter dialog opens below Target track the menu. Choose the length of the tracking line, and click to exit. Close User setting procedures This section explains how to handle user and default settings on the SH90 sonar. How to save the current user setting Click the tab to open the menu.
Page 60: How To Delete A User Setting
Optional functionality may be added to the SH90. All options are pre-programmed into the standard sonar version. When ordering a permanent option installation, a code word will be released from Simrad. For installation of options, observe the following procedures. How to access the Install Options dialog Select the menu.
Page 61: Install Options' Parameter Dialog
: This field displays the unique 12-character hardware HWID identification code. This code is different for each SH90 sonar. Simrad uses this code to generate the 32-character code word used for a permanent option installation. • : This button is used for permanent Add License String installation of the chosen option.
Page 62: Software Procedures
Simrad SH90 Software procedures Backup and restore Software backup is provided using the following set of CDs and DVDs. • Processor Unit boot CD (allows the computer to boot) • Processor Unit image (DVD) (generic, contains operating system) • Processor Unit image (DVD) (contains your own image backup made during installation) The image DVD provided with the Processor Unit is generic.
Page 63: How To Reactivate Your Windows License
Operational procedures Note If you restore your system from a generic image DVD, you must both change the Windows license, and activate it, before you can use the SH90. You must also reinstall the SH90 software. To create the backup image, you need the provided with Boot CD the sonar.
Page 64 Simrad SH90 Note This procedure is only valid for Windows XP. Connect a computer keyboard to one of the USB connectors on the computer. Allow the computer to restart with the new operating system. Answer to reactivate Windows. If the system fails to ask, you can start the activation wizard...
Page 65 Operational procedures Click Change Product key Observe the following dialog: 10 Enter the license code The license is found on a sticker on the rear side of the lid covering the DVD player. 11 Click Update 12 Click Back 13 Observe the following dialog: 323775/A...
Page 66 Simrad SH90 14 If your computer is connected to the Internet. Note Do not leave the computer connected to the Internet for longer than absolutely required. It is neither protected by anti virus applications nor firewall. Click Yes, let’s activate Windows over the Internet now...
Page 67 Operational procedures 15 If your computer is not connected to the Internet. Click Yes, I want to telephone a customer service representative... Click Next Observe the following dialog: Select your location. Call the number provided. Provide the installation ID to the service desk. Type in the confirmation ID provided to you.
Page 68 Simrad SH90 16 When activation succeeds, click , and allow the computer to restart. 323775/A...
Page 69: Display Modes
Display modes DISPLAY MODES This chapter describes the Simrad SH90 display modes. The various modes represent the graphical presentation of sonar data. Several display modes are available to present the best possible presentations as well as flexible choices for a large range of user applications.
Page 70 Simrad SH90 Alternative method Locate the button on the top of each menu. Mode Click the button to choose operational mode. Mode Click the left or right side of the button to choose Mode mode, or the middle of the button to open the parameter dialog.
Page 71: Bow Up
Display modes Bow up When Bow up mode is selected, the vessel symbol is stationary on the screen with the bow pointing upwards. The echo presentation covers 360 degrees around the vessel, and all echoes are updated for every ping. The distance from the vessel symbol to the outer echo ring is equal to the selected range.
Page 72: Bow Up/Audio
Simrad SH90 Bow up/Audio When Bow up/Audio mode is selected, the upper half of the screen shows a bow-up presentation, while the lower part is used for a recording of the audio channel. The audio channel is shown with a continuous white line in the horizontal picture, and it can be trained in any direction.
Page 73: Bow Up/Vertical
Display modes Bow up/Vertical When Bow up/Vertical mode is selected, the picture is divided into three sections; where the left side is a bow-up presentation similar to the Bow up presentation previously described. The upper part on the right hand side is a Catch data presentation, while the lower part is a Vertical slice presentation.
Page 74: Bow Up/Dual Vertical
Simrad SH90 Bow up/Dual Vertical When Bow up/Dual vertical mode is selected, the upper part of the screen shows a curtailed bow-up presentation, while the lower part shows two vertical slice presentations. The bearing of the left vertical presentation is indicated by the white audio line in the horizontal presentation, while the bearing of the right vertical presentation is indicated by the yellow-dashed line.
Page 75: Bow Up/180° Vertical
Display modes Bow up/180° Vertical When the Bow up/180° Vertical mode is selected, the upper part of the screen shows a curtailed Bow up presentation, while the lower part shows a 180 degrees Vertical slice presentation. This mode is mainly intended for trawlers, where the vertical view acts as a multibeam echo sounder.
Page 76: True Motion
Simrad SH90 True motion When True motion mode is selected, the picture is locked to a geographical position, where the vessel moves around the screen according to its present course and speed. All echoes are always presented in their correct position relative to the vessel, and their movements on the screen will be a true representation of the movements of the targets through the water.
Page 77: True Motion/Vertical
Display modes True motion/Vertical When True motion/Vertical mode is selected, the picture is divided into three sections; where the left side is a True motion presentation similar to the true motion presentation previously described. The upper part on the right hand side is a Catch data presentation, while the lower part is a Vertical slice presentation.
Page 78: North Up
Simrad SH90 North up When North up mode is selected, true north is always up on the screen. The vessel symbol is stationary with the bow pointing in the vessel’s course direction. The movement of the echoes across the screen are controlled by a combination of the vessel’s course and speed and the target’s own movements.
Page 79: Dual 1
Display modes Dual 1 The Dual 1 mode is a kind of “two sonars in one” operation, where each presentation is updated for every second transmission. All settings can be set individually for each of the two presentations. This makes the dual mode especially useful for optimizing settings by directly comparing the two presentations.
Page 80: Dual 2
Simrad SH90 Dual 2 The Dual 2 mode is very similar to the Dual 1 mode previously described, but the “two sonars” are presented next to each other. All settings can still be set individually for each of the two presentations.
Page 81: 270°/Vertical
Display modes 270°/Vertical The 270°/Vertical mode is specially designed for purse seining. The vertical half slice is displayed in the lower left corner for normal setting with the net on the starboard side. If the net is set on the port side, the 60 degrees vertical slice will be displayed in the lower right hand corner.
Page 82: Operating Panel
Simrad SH90 OPERATING PANEL This chapter describes the Simrad SH90 Operating Panel. The frequently used functions are directly accessible by the designated control buttons on the Operating Panel, and may enter operational commands directly. The buttons are grouped in fields according to their purpose. Most sonar functions are also...
Page 83: Main Switch' Field
Operating Panel ’Main switch’ field buttons controls the power on/off sequence and Main switch the hoisting and lowering of the transducer. It also indicates the transducer’s current position. Power This is the sonar’s “on/off” switch. • Pushing for approximately two seconds powers up the Power sonar.
Page 84: Symbol' Field
Simrad SH90 ’Symbol’ field buttons provide on-screen graphic references for Symbol targets, own ship and fishing gear. (A) Target marker To mark a target, move the cursor over it and press the button. A triangular symbol with a corresponding number will appear on the screen over the target.
Page 85 This is a useful aid in providing an overview of the trawl operation. Trawl data can be set manually using the menu or automatically by interfacing a Simrad FS trawl sonar or Simrad ITI trawl monitoring system with the sonar.
Page 86: Mode' Field
Simrad SH90 ’Mode’ field The four buttons can be used to select either the four Mode favourite display modes or user settings. The set up the buttons to choose modes or settings, select in the Mode Buttons Display menu. Depending on the selection you make in the...
Page 87: Range' Field
Operating Panel is display in the menu. You can select from 51 values Vertical numbered from 0 to 50, and these may be changed in steps of 1 ’Range’ field Range controls are specified as either horizontal or vertical. Horizontal range The two upper buttons control the horizontal range.
Page 88 Simrad SH90 Menu button is used for selection between Menu and Full Menu Screen presentations. When the main menu is displayed, the echo presentation will be reduced correspondingly. In Full Screen presentation, the full dimension of the screen is used for the echo presentation.
Page 89: Train' Field
Operating Panel ’Train’ field The audio channel is displayed as a continuous white line. It can be trained either manually or automatically. The bearing angle is displayed in the upper right-hand corner of the display, indicated relative to the bow. Manual In the Manual mode the (arrow) buttons...
Page 90: Tilt' Field
Simrad SH90 Target track To track a target, place the cursor over the desired location and press the button. A circle will appear on the display Target Track and its position automatically tracked by the system using the strongest echo centred in the ”window” represented by two lines on the audio line.
Page 91 Operating Panel the tilt angle until pressure is removed. In the Position and Target Tracking modes, the tilt angle will automatically be adjusted to compensate for the distance to the tracked position. Auto tilt In the Auto tilt mode the selected tilt angle forms the centre of the tilt search.
Page 92: Various' Field
Simrad SH90 ’Various’ field The buttons grouped under various are Zoom Record Mute Off Centre Mute button is used to acknowledge audible alarms, such as Mute , and to acknowledge messages from the message Fish Alarm system. Record The record function is used for storing either a sequence or single display picture.
Page 93: Menu Descriptions
MENU DESCRIPTIONS This section provides a detailed description of the complete menu system for the Simrad SH90 Sonar system. The chapter Menu structure gives a description of the menu system configuration with references to more detailed descriptions of all the menu.
Page 94: Active Menus
Simrad SH90 Active menus The active menus are those relevant for the different operational modes. The menus are shown with vertical selector tabs on the right hand side, and each menu can easily be selected using the trackball and the button on the Operating Panel.
Page 95 Menu descriptions • : Use this function to select the form of the Pulse Form transmitted pulse. This could either be FM (Frequency modulation) with different pulse lengths, or CW with different pulse lengths. (► Pulse Form on page 148) •...
Page 96: Vertical Menu
Simrad SH90 Vertical menu Menu description menu is only shown in modes Vertical with a vertical slice function. All relevant settings, except the , can be TX Power selected separately for the vertical modes independent of the horizontal settings. When any vertical setting is selected and defined in one mode, the setting will be applied to all vertical modes.
Page 97: Vertical 180 Menu
Menu descriptions • : Automatic Gain Control. This function will automatically reduce the gain if you experience reverberation and noise, or increase it if the conditions permit it. Using the AGC will ensure best possible signal processing. (► AGC on page 121) •...
Page 98 Simrad SH90 • : This setting controls the amplification of the received Gain echoes in the vertical presentation. If you activate the (Automatic Gain Control) function, this gain setting is influenced. (► Gain on page 137) • : Use this function to select the form of the Pulse Form transmitted pulse.
Page 99: Display Menu
Menu descriptions Display menu Menu description menu is shown in all display Display modes, and provides access to parameters controlling the visual presentation of the sonar views. Some of the choices on the menu are simple on/off buttons. Menu buttons •...
Page 100: Setup Menu
Simrad SH90 • : Use this button to choose how the Mode buttons Mode buttons on the Operating Panel shall work. You can either choose between the four most frequent modes, or the four most frequent user settings. (► Mode Buttons on page 144) •...
Page 101 Menu descriptions • : Click this button to access the sonar’s test software. Test These utilities are only provided for certified service technicians, and they are not documented. (► System Test menu on page 104) • : This button is used to select the type of fishing gear you Gear use, and to get the right size and position of the gear on the display.
Page 102: Objects Menu
• : This function makes it possible External sync(hronisation) to eliminate interference from other Simrad sonars on board your vessel. If the sonars are connected together, you can use these settings to synchronise their transmissions. (► External Synchronisation on page 134) •...
Page 103: Temporary Menus
Menu descriptions Using the Objects menu • To delete an object, select the relevant marker in the list, and click the Delete button in the lower part of the menu. • Click the button to delete all Delete All objects. •...
Page 104: Cosmetics Menu
Simrad SH90 Cosmetics menu Menu description menu is activated by Cosmetics pressing the button in the Cosmetics menu. The menu provides access Display to various parameters controlling the appearance of the sonar picture. All the functions - except Track History - are on/off buttons.
Page 105: Store/Recall Menu
Menu descriptions • : Displays an arrow drawn from the Compass Wind Marker Card pointing towards the centre of the display, shows the current wind direction if a suitable sensor has been connected to the sensor. • : Displays the selected range of the vertical slice Vertical Ring as a full circle in the horizontal presentation.
Page 106: System Test Menu
Simrad SH90 • button: Click this button: to transfer a selected Transfer preliminary file to the permanent file storage. • : This text field displays the list of permanent Permanent files files. These will not be deleted when you switch off the sonar.
Page 107 Menu descriptions • : This button provides a read-out of the current Echo level noise in the waters surrounding the vessel. This noise is caused by air bubbles, water flow and mechanical disturbances from hull and engine. • : This button provides a read-out from the roll sensor. Roll It presents the actual roll value at the time of the last transmission.
Page 108: Sort Modes Menu
Simrad SH90 Sort Modes menu Menu description menu is activated by the Sort Modes button in the menu. Sort Modes Setup (► Setup menu on page 98) This menu is used to select the display modes to be activated by the four Mode buttons on the Operating Panel.
Page 109: View Pop-Up Menu
Menu descriptions View pop-up menu pop-up menu is opened using the button on the View View Operating Panel (or the middle mouse button if an optional computer mouse is installed). Menu options • : When this function is selected, the Set New Display Centre new display centre is moved to the cursor’s position where menu was activated.
Page 110: Catch View Pop-Up Menu
Simrad SH90 Catch View pop-up menu pop-up menu is opened by pressing the Catch View View button on the Operating Panel (or the middle mouse button) when the cursor is located in a Catch Data view. Menu options • : When this function is selected, all echoes Erase Echoes displayed on the sonar view will be deleted.
Page 111 Menu descriptions These majority of the menu options on the basic pop-up Object menu provide the same functions as their respective buttons on the Operating Panel: • : This option provide the same function as the Target Track button on the Operating Panel. See ’Train’ field Target Track on page 87.
Page 112: View Menus
Simrad SH90 Ruler parameters When you open the pop-up menu with the cursor Object positioned over a ruler on the display, it will display additional parameters. • : Removes a ruler from the display. Delete Ruler • : If you click on an existing ruler, the...
Page 113: Verticalview Menu
Menu descriptions Menu buttons • : Click this button to move the ship symbol to Ship to centre the centre of the view. • : Click this button to select the scale of the horizontal Scale presentation. 100% is the default scale. (► Scale on page 155) •...
Page 114: Catchview Menu
Simrad SH90 • : This button is used to select the bearing source Data Source of the vertical views. If you select , the vertical slice will Audio follow the trainable audio channel. If you select , the Indicator bearing of the vertical slice can be adjusted independent of the audio channel.
Page 115: Messages
Menu descriptions Messages When necessary, the sonar will provide you (or your service engineer) with operational and technical messages. These messages are sorted into four categories; Warnings Operator alarms System alarms Errors In order to access the messages, the must be enabled. Message Bar This function can be set to activate itself when necessary.
Page 116: Warnings Menu
Simrad SH90 Warnings menu Menu description menu is activated from Warnings button in the Warnings Message Bar (► Message Bar on page 141) The menu displays the warning messages issued by the sonar. Each message is identified with time of issue and a heading. Additional information is found in the small text field below the message list.
Page 117: Operator Alarms Menu
Menu descriptions Operator Alarms menu Menu description menu is activated Operator Alarms from the button in the Op Alarms Message . (► Message Bar on page 141) The menu displays the operator alarms issued by the sonar. Each message is identified with time of issue and a heading.
Page 118: System Alarms Menu
Simrad SH90 System Alarms menu Menu description menu is activated System Alarms from the button in the Sys Alarms Message . (► Message Bar on page 141) The menu displays the system alarms issued by the sonar. Each message is identified with time of issue and a heading.
Page 119: Errors Menu
Menu descriptions Errors menu Menu description menu is activated from Errors button in the Errors Message Bar (► Message Bar on page 141) The menu displays the error messages issued by the sonar. Each message is identified with time of issue and a heading. Additional information is found in the small text field below the message list.
Page 120: Parameters
Simrad SH90 PARAMETERS This section provides a detailed description of the parameter dialogs used by the Simrad SH90 sonar system. The chapter Menu structure gives a description of the menu system configuration with references to more detailed descriptions of all the menu. Any selections you do in the menus will bring up the parameters available for the chosen setting.
Page 121 Parameters the menus are better known, the increase/decrease function on the actual menu button can be used directly without opening the parameter dialog. 323775/A...
Page 122: Alphabetical List Of Parameters
Simrad SH90 Alphabetical list of parameters About on page 121 Gear on page 137 Slant Range on page 158 AGC on page 121 Heading on page 138 Speed on page 159 Beam on page 122 Inspect Object on page 139...
Page 123: Parameter Descriptions
Parameters Parameter descriptions About Dialog description parameter dialog is opened with the button About About on the menu. System test dialog is only used to provide information about the About current software version. In addition, the button opens Versions a small text document with detailed system information. This information is not intended for operational use.
Page 124: Beam
Simrad SH90 Beam Dialog description This parameter dialog opens when you click the button Beam in the menu. Horizontal This function enables you to select the vertical beam width in the horizontal presentation. The beam selection can be made manually, or controlled automatically by the selected range.
Page 125: Bearing (Display)
Parameters Related topics • Horizontal menu on page 92 Bearing (Display) Dialog description parameter is activated when you click the Bearing (Display) button in the menu. Bearing Display This is simply a selector switch. Click on the button to select True north or Relative Ship.
Page 126: Bearing (Horizontal)
Simrad SH90 Bearing (Horizontal) Dialog description parameter dialog opens when you click the Bearing Bearing button in the menu. Horizontal The horizontal bearing of the audio channel is normally controlled from the Operating Panel. The selected bearing is shown with a continuous white line pointing out from the transducer position.
Page 127: Bearing (Vertical)
Parameters Bearing (Vertical) Dialog description parameter dialog opens when you click the Bearing (Vertical) button in the menus. Bearing Vertical Vertical 180 This dialog allows you to train the audio channel bearing manually. The bearing of the audio channel is normally controlled with the buttons on the Operating Panel.
Page 128: Colours
Simrad SH90 Colour Threshold dialog options • + (plus): Click to increase the colour threshold. • – (minus): Click to decrease the colour threshold. • : Click to close the parameter dialog. Close • : Click to access the on-line help.
Page 129: Data Source
Parameters Data Source Dialog description parameter dialog opens when you click the Data Source Data button in the menu. Source VerticalView menu is opened by pressing the button VerticalView View on the Operating Panel (or the middle mouse button) while positioning the cursor in any of the vertical views, and then selecting on the...
Page 130: Date And Time Properties
Simrad SH90 Related topics • VerticalView menu on page 111 • Direction Indicator on page 130 Date and time properties Dialog description dialog box is opened by pressing the Date and time properties buttons in the default parameter dialog at...
Page 131: Default Setting
This function makes it possible to delete all the parameters currently saved in the sonar’s memory, and reinstall those defined by Simrad instead; the factory default settings. These default settings are identified with an asterisk in the different parameter dialogs and menus, and will perform well under normal conditions.
Page 132: Density
Simrad SH90 Density Dialog description parameter dialog opens when you click the Density Edit button in the parameter dialog. The is in Edit School Edit School turn opened from the button on the menu. School Data Setup This parameter dialog is used to define the density of the current fish species.
Page 133: Display Gain
Parameters • – (minus): Click to decrease the direction angle. • : Click to close the parameter dialog. Close • : Click to access the on-line help. Help Related topics • Setup menu on page 98 • Data Source on page 127 Display Gain Dialog description parameter dialog opens when you click the...
Page 134: Edit Gear (Purse)
Simrad SH90 Edit Gear (Purse) Dialog description parameter dialog opens when you click the button Gear Gear on the menu. Each of the available options in the Setup Gear dialog can be edited using the button. When a purse has...
Page 135: Edit Gear (Trawl)
Depth made automatically if you click the button, provided that Auto a Simrad trawl system is connected to the sonar. If you click , you can define the depth in steps of 10 meters. Manual • : Click to define the height of the trawl opening. The...
Page 136: Edit School
External Sync Setup This function makes it possible to eliminate interference from other Simrad sonars on board the vessel. If the sonars are connected together, you can use these settings to synchronise their transmissions. 323775/A...
Page 137: Fish Alarm
Parameters External Synchronisation dialog options • : Click to select one of the three synchronization Sync mode modes below. • Mode : Click to disconnect the SH90 from the None synchronisation system. The sonar will then operate completely on its own. •...
Page 138 Simrad SH90 Fish Alarm dialog options • : Click to select the inner radius of the circular Start range alarm sector. The start range can be between 0 and 7900 meters. • : Click to select the outer radius of the circular End range alarm sector.
Page 139: Gain
Parameters Gain Dialog description parameter dialog opens when you click the button Gain Gain in the menus. Horizontal Vertical Vertical 180 The sonar gain is normally selected on the Operating Panel, but you can also do it with this function. It has 51 values, these are numbered from 0 to 50.
Page 140: Heading
Simrad SH90 Gear dialog options • : Click to select small, medium or large purse. Purse • : Click to select small, medium or large bottom Bottom Trawl trawl. • : Click to select small, medium or large pelagic Pelagic Trawl trawl.
Page 141: Inspect Object
Parameters Heading dialog options • + (plus): Click to increase the manual heading with 1 degree. • – (minus): Click to decrease the manual heading with 1 degree. • : Click to allow manual heading. Use this option only Manual if the ship’s heading sensor is unavailable.
Page 142: Language
Simrad SH90 • : This read-out shows the estimated area of the Area (A) chosen object. • : This read-out shows the estimated volume of Volume (V) the chosen object. • : Click to delete the chosen object from the marker list.
Page 143: Menu
Parameters Menu Dialog description parameter dialog opens when you click the Menu Menu button in the menu. Display This parameter dialog allows you to select different levels of complexity in the menu system. Using this function you can hide menu buttons that you do not use. Menu dialog options •...
Page 144: Middle Pos(Ition)
Simrad SH90 is located at the bottom of the display. It Message Bar contains four buttons, one for each category of messages. These buttons give an overview of the number of unread messages currently in the system, and each of the four buttons gives access to a menu where each message can be read, acknowledged and deleted.
Page 145: Mode
Parameters Middle Pos(ition) dialog options • + (plus): Click to increase the middle position. • – (minus): Click to decrease the middle position. • : Click to close the parameter dialog. Close • : Click to access the on-line help. Help Related topics •...
Page 146: Mode Buttons
Simrad SH90 Mode Buttons Dialog description button is located on the menu. Mode Buttons Display This is simply a selector switch. Click on the button to select Mode or User, and by this defining the operational function of the four buttons on the Operating Panel.
Page 147: Noise Filter
Parameters Movements dialog options • + (plus): Click to increase the time. • – (minus): Click to decrease the time. • : Click to close the parameter dialog. Close • : Click to access the on-line help. Help Related topics •...
Page 148: Palette
Simrad SH90 Palette Dialog description parameter dialog opens when you click the Palette Palette button on the menu. Display This parameter dialog allows you to select the background colours and day/night brightness of the display to suit you personal preferences. The choice you make here does not have any effect on the sonar performance.
Page 149: Pp Filter
Parameters Panel Backlight dialog options • + (plus): Click to increase the backlighting intensity. • – (minus): Click to decrease the backlighting intensity. • : Click to allow manual control of the backlighting Manual intensity. • : Not used. Auto •...
Page 150: Pulse Form
Simrad SH90 PP Filter dialog options • : Click to switch the filter off. • : Click to switch on the filter to compare the echoes Weak from the latest two pings. • : Click to switch on the filter to compare the echoes Medium from the latest four pings.
Page 151 Parameters Table 1 CW and FM pulse lengths (in milliseconds) for different ranges Range FM Long CW Short CW Long FM Auto FM Short Normal Normal 14,4 1000 1200 28,8 1500 2000 About CW (Continuous Wave) The frequency of the transmitter pulse is here constant, and equal to the operational frequency.
Page 152: Range
Simrad SH90 Range Dialog description parameter dialog opens when you click the Range Range button in the menus. Horizontal Vertical Vertical 180 Horizontal and vertical ranges are normally selected using the buttons on the Operating Panel. You can also control these settings directly using this parameter dialog.
Page 153: Range (Catchview)
Parameters Range (CatchView) Dialog description parameter dialog opens when you click Range (CatchView) button in the menu. Range CatchView menu is in turn activated by pressing the CatchView View button on the Operating Panel (or the middle mouse button), while the cursor is located in the Catch view, and then selecting on the pop-up menu.
Page 154: Rcg
Simrad SH90 Dialog description (Reverberation Controlled Gain) parameter dialog opens when you click the button in the Horizontal Vertical menus. Vertical 180 Reverberation Controlled Gain (RCG) regulates the receiver gain individually for each of the 64 receiving beams. If you select...
Page 155: Recall
Parameters Recall Dialog description button is located on the menu, which in Recall Store/Recall turn is opened from the menu. Setup button is used to retrieve the previously stored display Recall information. You can select which storage image you wish to see by selecting it from the list of temporary or permanent files, or start a playback sequence.
Page 156: Ruler
Simrad SH90 To record sonar images, press the button on the Operating Record Panel, or click the button in the menu. To Store Store/Recall define the recording mode, click the button in the Store Mode menu Store/Recall Recall Mode dialog options •...
Page 157: Scale
Parameters Ruler dialog options • : This read-out provides the length of the ruler. Length (L) • : This read-out provides the direction of the Direction (Di) ruler in degrees. • : Click to delete the currently selected ruler. Delete •...
Page 158: School Data
Simrad SH90 School Data Dialog description parameter dialog opens when you click the School Data button in the menu. School Setup This parameter dialog is used to obtain information of the volume estimation of a school in the automatic target tracking program.
Page 159: Search Sector
Simrad ITI trawl system or the Simrad PI Series catch monitoring system. • : Click to enable or disable export of own ship Ownship Data data.
Page 160: Search Step
Simrad SH90 Search Step Dialog description parameter dialog opens when you click the Search Step button in the parameter dialog. The Search Step Bearing Bearing parameter dialog opens when you click the button in the Bearing menu. Horizontal This parameter dialog is used to define the size of each step (in degrees) the audio beam will travel between each transmission.
Page 161: Speed
Parameters Figure 35 True range (A), slant range (B) and tilt angle (C) Related topics • Cosmetics menu on page 102 • True Range on page 171 Speed Dialog description parameter dialog opens when you click the Speed (Speed) button in the parameter dialog at the bottom of Status the menus.
Page 162: Stabilizer
Simrad SH90 Speed dialog options • + (plus): Click to increase the manual speed. • – (minus): Click to decrease the manual speed. • : Click to allow manual speed entry. Manual • : Click to allow automatic reception of speed data from a Auto relevant external sensor.
Page 163: Status
Parameters Figure 36 Stabilisation principle The first example in the figure (A) indicates the sonar beam without stabilisation, while the bottom vessel (B) indicates the stable sonar beam with the stabilisation in operation. Related topics • Setup menu on page 98 Status Dialog description parameter dialog is by default displayed in the lower,...
Page 164: Store
Simrad SH90 • : Presentation of current heading. [Compass] • : Presentation of local time. [Time] Click to open the dialog box, which Date and time properties allows you to change the date and time settings. See Date and time properties on page 128.
Page 165: Store Mode
Parameters If a sequence loop storage is selected, the button is used for Store start and stop of the storage. If single picture storage is selected, a new picture storage is made each time the button is pressed. Store • To control the store function, click the button on Store Mode menu.
Page 166: Target Track
Simrad SH90 • : Click to record the sonar echoes once every fifth Each 5th s second in a series of separate images. • : Click to record the sonar echoes once every tenth Each 10th s second in a series of separate images.
Page 167: Tilt
Parameters Target Track dialog options • : Click to remove all target track lines. None • : Click to enable a target track line on the priority [x] min.P target. • : Click to enable a target track line on all targets. [x] min.All •...
Page 168: Tip
Simrad SH90 • : Click to enable Auto tilt mode. Auto In this mode, the transducer will automatically change tilt angle for each transmission. The change of the tilt angle is selected by the button, and the total tilt sector is...
Page 169: Track History
Parameters Tip dialog options • + (plus): Click to increase the tip angle. • – (minus): Click to decrease the tip angle. • : Click to close the parameter dialog. Close • : Click to access the on-line help. Help Related topics •...
Page 170: Track Window
Simrad SH90 Track Window Dialog description parameter dialog opens when you click the Track Window button on the menu. Track Window Setup This parameter dialog enables you to adjust the track window size. A larger track window will enable the system to track a large target more easily, but the system will be more susceptible to background noise.
Page 171: Tru On/Off
Parameters • : This is a read-out (in centimetres) of Transducer Pos(ition) the transducer’s current position. • : This is the defined middle position (in Middle Pos(ition) centimetres) of the transducer. To change the position, click the button. • : Click to lower the transducer to its bottom position. Down •...
Page 172 Simrad SH90 The sonar will start up even if circuit boards in the Transceiver Unit is malfunctioning. The sonar will then need more time to perform the start-up procedure, and a short message will be provided above the progress bar: System ready for ping, but with reduced number of TRH32 .
Page 173: True Range
Parameters True Range button is located in the menu, which in True Range Cosmetics turn is opened from the menu. Refer to Slant Range on Display page 158 for further information. Related topics • Cosmetics menu on page 102 • Slant Range on page 158 Dialog description (Time Variable Gain) parameter dialog opens when...
Page 174: Tx Power
Simrad SH90 TX Power Dialog description parameter dialog opens when you click the TX Power button in the menus. Power Horizontal Vertical Vertical 180 This parameter dialog is used to select the transmitter output power. Note that this setting is common for all the menus. Thus, if the power is changed in one menu, it will automatically also be changed in all other menus.
Page 175: User Setting
Parameters Engineering Units dialog options • : Click to change unit for range. Select Meters, Range Nautical mile, Feet or Yards. • : Click to change unit for equipment. Select Meter, Equipment Fathoms or Feet. • : Click to change unit for depth. Select Meters, Fathoms Depth or Feet.
Page 176: Wind Direction
Simrad SH90 • : Use this option to save all the currently Save Current Settings used parameter settings. You will always save your current setting as a “new user”. By default the setting will be named User N, and “N” is simply the next available number.
Page 177: Zoom
Parameters Wind Direction dialog options • + (plus): Click to increase the wind direction. • – (minus): Click to decrease wind direction. • : Click to enable manual setting of the wind direction. Manual • : Click to enable automatic setting of the wind direction. Auto The information must then be provided from an external sensor connected to the sonar.
Page 178: Zoom Scale
Simrad SH90 Zoom Scale Dialog description parameter dialog opens when you click the Zoom Zoom button in the menu. VerticalView This parameter dialog is used for scaling the zoom around the bottom. Zoom Scale dialog options • : Click to select zoom scale.
Page 179: Basic Theory
Basic theory BASIC THEORY This chapter explains some of the basic theory related to settings, error sources and noise conditions. Topics • Settings on page 177 • Noise and reverberation on page 181 • Layers and deflections on page 184 Settings A sonar will transmit a sound wave into the water around the vessel.
Page 180: What Is Agc
Simrad SH90 When you choose the TVG setting you can either switch it off, or choose a value. The different settings determine how “X log R” much gain the sonar will use as time elapses along the X-axis. A higher value for “X” will make the angle (C) steeper.
Page 181: About Gain
Basic theory Figure 40 Beam widths Large Normal Etroit The normal setting on the SH90 sonar is . This setting is Normal basically designed for longer ranges. You may also try setting . This setting will automatically Auto adjust the beam width depending on the current range. For more information, see the parameter dialog description;...
Page 182: What Is Rcg
Simrad SH90 To adjust the gain, see How to adjust the gain on page 41. What is RCG? means Reverberation Controlled Gain. This is a two-dimensional filtering of the received echoes in order to suppress unwanted surface and bottom reverberation.
Page 183: Noise And Reverberation
Basic theory If you use a very small tilt (C) you will not be bothered by bottom echoes. If the sea surface is gusty, you will however easily see echoes from the waves. These echoes will normally be rather weak, and will hardly move in relation to your vessel. By means of a medium tilt angle (B) you will most likely be able to pick up scattered fish or schools if these are located at some distance above the bottom.
Page 184: Reverberation
Simrad SH90 Figure 42 Cavitation When the bubbles collapse, they cause very strong local shock-waves in the water. These may be audible and can also damage the propeller blades. In addition to this, the cavitation will generate very strong reverberation, commonly seen as a red stripe of echoes behind the vessel.
Page 185: Blocking
Basic theory The echoes from the bottom will vary with how uneven the bottom is, what kind of bottom you have under your vessel, (rock, mud, sand etc.) as well as your current tilt setting. The echo from the sea surface will vary with the current sea state and your current tilt setting.
Page 186: Layers And Deflections
Simrad SH90 This includes motor, propellers, thrusters, winches, cooling- and air conditioning systems, pumps, cranes, hydraulic systems etc. Switch the equipment on again one at the time, and check the sonar every time. With luck, you will spot which of your electrical systems that create the noise.
Page 187 Basic theory Figure 45 Water temperatures on warm days When the temperature decreases (A) closer to the bottom, the sonar beam is deflected down as indicated by the illustration. The school of fish (B) you thought you would see is not visible at all. On cold days, you may experience the opposite: the cold water will be close to the surface, and the water temperature increases with increasing depth.
Page 188: On-Board Maintenance
For location and replacing of fuses, refer to the chapter for the unit in question. Major repairs and complete overhaul of the sonar should be left to an authorized Simrad service engineer. Topics •...
Page 189: Preventive Maintenance Schedule
On-board maintenance Preventive maintenance schedule The Simrad SH90 is a state of the art sonar system with only a minimum of moving parts. At the same time, the sonar system hardly provides any user serviceable parts. In order to secure the system for long and trouble-free use, observe the following preventive maintenance tasks.
Page 190: When In Dry Dock
Simrad SH90 When in dry dock Observe the following tasks to be carried out when the vessel is in dry dock. Inspect the transducer. Clean and remove marine growth. → Cleaning the transducer on page 203 After dry docking Observe the following tasks to be carried out once the vessel has left the dry dock.
Page 191: Wheelhouse Units On-Board Maintenance
On-board maintenance Wheelhouse units on-board maintenance Observe the following on-board maintenance instructions for the units installed in the wheelhouse. Colour display on-board maintenance Observe the following on-board maintenance instructions for the colour display. For detailed maintenance instructions, observe the information provided in the display documentation. Display cleaning Ensure that the colour display is kept clean and dry.
Page 192: Transceiver Unit On-Board Maintenance
Simrad SH90 Transceiver Unit on-board maintenance Observe the following on-board maintenance instructions for the Transceiver Unit. Ambient temperature and humidity It is important that the sonar room is kept dry. The Transceiver Unit must not be exposed to excessive dust and humidity, as this can cause corrosive attacks and subsequent failures to the electronic circuitry.
Page 193: Transceiver Unit Heat Exchanger
On-board maintenance Transceiver Unit Heat Exchanger As an option, the Transceiver Unit may be provided with a Heat Exchanger. The filters and fans in this Heat Exchanger must be cleaned. This procedure explains how to do that. Note The Heat Exchanger is an optional item. If it is not mounted on your Transceiver Unit, disregard this procedure.
Page 194: Power Supply Unit Maintenance
Simrad SH90 Power Supply Unit maintenance Observe the following on-board maintenance instructions for the Transceiver Unit. Power Supply Unit cleaning The Power Supply Unit must be kept clean and dry. Remove dust and salt water residue with a soft cloth moistened in fresh water.
Page 195: Hull Unit Maintenance
On-board maintenance Hull Unit maintenance Observe the following on-board maintenance instructions for the Hull Unit. Note The Hull Unit must be under continuous watch as a part of the vessel machinery. In addition to lubrication, check for signs of corrosion. If required, clean the corroded areas, and paint over with a high quality protective paint.
Page 196: Hull Unit Familiarization
Simrad SH90 Hull unit familiarization Figure 50 Hull unit familiarization Upper limit switch S304 Transducer cable Transducer shaft Lower limit switch S305 Grease nipple (Pressure release plug on rear side) Air bleeding plug hoisting motor Motor Control Unit Hoisting unit...
Page 197: Motor Control Unit Familiarization
On-board maintenance Motor Control Unit familiarization Figure 51 Motor Control Unit familiarization Internal 24 Vdc power supply Ethernet connector Hand crank Mains filter Hull Unit Controller circuit board Fuse for internal power F301 supply Terminal strip for AC mains E301 input Hoisting contactor K301...
Page 198: Fuses In The Motor Control Unit
Simrad SH90 Fuses in the Motor Control Unit The Hull Unit is fused with two types of fuses located in the Motor Control Unit. Figure 52 Location of S301, F301 and +24 Vdc power supply Motor Protecting Switch S301 To prevent the hoisting motor from overload, the 3-phase...
Page 199: Hoisting And Lowering From The Sonar Room
On-board maintenance Fuse F301 The Motor Control Unit contains an internal +24 Vdc power supply for the control electronic. This power supply is powered from two phases of the 3-phase voltage, and is fused with F301 which is a 500 mA Slow Blow type. The fuse is located on the right-hand side on the 3-phase terminal E301 Hoisting and lowering from the sonar room...
Page 200 Simrad SH90 Figure 54 Location of S302 in the Motor Control Unit How to lower the transducer from the sonar room This procedure explains how to lower the transducer shaft and transducer from the sonar room. The control switches inside the Motor Control Unit are used.
Page 201 On-board maintenance How to hoist the transducer from the sonar room This procedure explains how to hoist the transducer shaft and transducer from the sonar room. The control switches inside the Motor Control Unit are used. In the Motor Control Unit, set the hoist/lower switch S302 to HOIST.
Page 202 Simrad SH90 Emergency lowering and hoisting operation If the normal hoist/lower operation does not work, even though the 3–phase voltage for the Motor Control unit is available (indicator illuminated), the transducer can be hoisted and lowered by manual operation of the hoist (...
Page 203: Motor Protecting Switch (S301)
On-board maintenance Motor protecting switch (S301) To prevent the hoisting motor from overload, the 3-phase voltage for the motor is fused with the current adjustable Motor Protecting Switch . This switch is located inside the Motor S301 Control Unit. The motor protecting switch will automatically disable hoisting and lowering, if: •...
Page 204 Simrad SH90 Figure 56 Location of S302 in the Motor Control Unit Preparation for dry docking Observe the following procedure before the ship is placed in dry dock Ensure that the transducer shaft is fully retracted. Power off the sonar system.
Page 205: Cleaning The Transducer
Note Do not paint the transducer with traditional hull plating paint. Use only the correct type of paint approved by Simrad. Do not use metal tools or high pressure water on the transducer. Ensure that the distance between the vessel hull and the bottom of the dry dock is sufficient to lower the transducer.
Page 206 Simrad SH90 Figure 57 Location of S301 and S302 in the Motor Control Unit Observe that the transducer is lowered. The hoisting motor will automatically stop when the transducer shaft reaches the lower limit switch, but you can stop the lowering earlier by switching to position STOP.
Page 207: Air Bleeding
On-board maintenance 10 Observe that the transducer is hoisted. The hoisting motor will automatically stop when the transducer shaft reaches the upper limit switch. 11 Set the hoist/lower switch to position REMOTE. S302 12 Close and secure the Motor Control Unit. Air bleeding After the vessel has been in dry dock, use the air bleeding plug (indicated in...
Page 208: Hull Unit Lubrication
Simrad SH90 Hull unit lubrication The hull unit is fully lubricated when it is installed on the vessel. During normal conditions, the lubricants applied will last for a long period of time. Additional lubrication of the hull unit must only take place when it is required.
Page 209 Index Index 270°/Vertical Range, 150 Blue whiting mode, 79 Range (CatchView), 151 School Data, 156 RCG, 152 Bottom Speed, 159 Zoom, 175 Tilt, 165 Bottom Trawl About Tip, 166 Gear, 137 Wind Direction, 174 Boundary lines menu button, 105 Automatic moving, 33 menus, 91 position...
Page 210 Simrad SH90 Transceiver Unit, 190 Display Gain, 131 cleaning, 189 Close Gain, 137 gain, adjust, 43 About, 121 manual heading, 138 menu, 97 menu button, 106, 114–117 Middle Pos, 142 mode 270°/Vertical, 79 Colour display Panel Backlight, 146 mode Bow up, 69...
Page 211 Power Supply Unit, 192 Hull Unit, 194 How to Transceiver Unit, 190 Motor Control Unit, 195 add circle marker, 45 Simrad SH90, 12 add gear symbol, 46 add target marker, 45 cleaning in Heat add vessel symbol, 46 Exchanger, 191...
Page 212 56 menu button, 105 control the cursor, 30 use seine circle, 46 Introduction, 12 copy sonar imagesto use the trawl symbol, 47 Simrad SH90, 12 USB, 53 vertical Investigate create image DVD, 60 search program, 54 marker, 47 define gear properties, 47...
Page 213 Index Density, 130 Horizontal, 92 Help, 114–117 Main switch language, 140 Installation menu, 105 Operating panel, 81 levels, 91 Interpolation, 105 Maintenance main, 27 Language, 98 colour display, 189 menu button, 98 Menu, 98 Hull Unit, 193 Messages, 91 Message bar, 105 on-board, 186 Object pop-up, 108 Minute Marker, 102...
Page 214 Simrad SH90 VRM, 102 True motion, 74 North up Wind direction, 99 True motion/Vertical, 75 mode, 76 Wind Marker, 103 Mode buttons Wind speed, 99 menu button, 98 Zoom, 111 Mode Buttons Zoom Scale, 111 parameter description, 144 Object pop-up...
Page 215 Index Optional functionality, 21 Noise Filter, 145 recall, 50 Palette, 146 rename, 51 Own Ship marker, 100 Panel Backlight, 146 store, 48 Output Playback, See Recall Ping-to-ping filter, 20 scientific, 22 Playback Mode, See parameter dialog, 147 Own school Recall Mode Pitch School Data, 156 PP Filter, 147...
Page 216 Simrad SH90 regular, 187 power on, 25, 38 parameter dialog, 150 schedule, 187 print sonar images, 52 Range (CatchView) when in dry dock, 188 reactivate Windows XP parameter dialog, 151 whenever required, 188 license, 61 Raw Data Print recall sonar images, 50...
Page 217 Message Bar, 141 parameter dialog, 163 User Setting, 173 warning Store/Recall Scale Message Bar, 141 menu, 103 menu button, 111 Simrad SH90 menu button, 98 parameter dialog, 155 familiarization, 12 Strong Schedule introduction, 12 AGC, 121 preventive maintenance, 187 Single shot...
Page 218 Simrad SH90 Target parameters, 109 Time Varied Gain mode, 74 Target Track adjust, 43 True motion/Vertical menu button, 111 mode, 75 menu option, 109 menu button, 95 True north parameter dialog, 164 parameter dialog, 166 Bearing, 123 Techncial Toggle TX Power On/Off...
Page 219 Index combination, 18 menu button, 99 VerticalView Windows XP license menu, 111 reactivate, 61 Vessel symbol add, 46 View Menu menu option, 107–108 XP license View menus reactivate, 61 about, 91 View pop-up menu, 107 Volume Zoom Inspect Object, 139 menu button, 111 menu option, 107 description, 35...

Simrad SH90 - REFERENCE MANUAL REV A Reference Manual

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