Page 1 Operator manual SP70 Low frequency, long range fishery sonar www.simrad.com M A X I M I Z I N G Y O U R P E R F O R M A N C E S E A...
Page 3 850-164186 / Rev.D SP70 Low frequency, long range fishery sonar Operator manual WARNING The sonar must never be powered up when the ship is in dry dock. The transducer will be damaged if it transmits in open air. To prevent inadvertent use of the sonar, pull out the mains plug on the Sonar Processor Unit whenever the vessel is in dry dock.
Page 4 Simrad AS. The information contained in this document is subject to change without prior notice. Simrad AS shall not be liable for errors contained herein, or for incidental or consequential damages in connection with the furnishing, performance, or use of this document.
Page 5 Operator manual Sections System description This chapter provides a brief introduction to the SP70, and defines the main units. Refer to page 1. Display modes This chapter defines the available operational display modes. Refer to page Sonar Operating Panel The main functions of the SP70 is controlled by a dedicated keyboard; the operating panel.
Page 6: Table Of Contents
Simrad SP70 SYSTEM DESCRIPTION ........
Page 7 Operator manual Symbol ..........Mode .
Page 8 Simrad SP70 Setup ..........
Page 9 Operator manual Default Setting ......... . Direction Indicator .
Page 10 Simrad SP70 Start Range / Stop Range ........
Page 11: System Description
System description SYSTEM DESCRIPTION Introduction The Simrad SP70 sonar is a long range omnidirectional low freqyency sonar, designed for medium and large sized fishing vessels, both purse seiners and trawlers. The standard frequency is 26 kHz (triple and multiple frequencies as option), and the beam can be electronically tilted from +10 to –60 degrees (or...
Page 12: System Overview
The Sonar Processor Unit contains a ruggedized computer, which runs the Microsoft Windows XP® operating system. The software has been modified by Simrad to suit the SP70 sonar requirements. The unit holds a CD R/WR unit to be used for future software upgrades.
Page 13: Sonar Room Units
System description Sonar room units The Transceiver Unit is located in the sonar room, close to the Hull Unit. One signal cable is used for communication with the Sonar Interface Unit in the wheelhouse. The transceiver performs the signal processing and the digital beamforming of the 241 transmitters and 241 receiver channels, which are located on the eight identical transceiver boards.
Page 14: System Diagram
Simrad SP70 System diagram A simplified SP70 system diagram is shown. (A) = Colour display (B) = Operating Panel (C) = Sonar Processor Unit (D) = Sonar Interface Unit (E) = Loudspeaker (F) = Multiple interface lines to peripheral equipment...
Page 15 System description 850-164186 / Rev.D...
Page 16: Options
The options described below are pre-programmed into the standard software version, and a code word is required to make the actual option available. Simrad offers a 1 month free test period for certain options. Note that the Scientific Output function is not available for such a test period.
Page 17: Scientific Output
System description Scientific output The Scientific Output is designed for research purposes. When activated, the following data are available on an Ethernet (LAN) output: • Beam data • Target data • Own ship data • Gear data The scientific output option may also include software for a Scientific Data Logger.
Page 18: Functional Description
Simrad SP70 Functional description Introduction The basic principles of the SP70 sonar are unique because of the 241 separate transmitter and receiver channels with their transducer elements spread around on the spherical transducer array. The transmission, reception and data processing are under...
Page 19 System description 180 degrees vertical slice This vertical slice, which is presented by the white audio line in the horizontal picture, can be selected to any bearing by the manual training control. The combination of the Omni mode and the vertical slice will give an optimal visualization of the catch situation.
Page 20: Stabilization System
Simrad SP70 In addition to the Omni picture, the vertical slice is especially useful for visualizing the vertical distribution of a school of fish. In that way, it is not necessary to go over the target to see the distribution on the echo sounder, which often results in a spreading of the school.
Page 21 System description In FM mode each transmission pulse contains up to eight different frequencies, and the receiver makes a spectrum analysis and compares the received echoes with the transmitted frequency code. This provides a filtering effect, which efficiently reduces interference, noise and reverberation. In addition to giving a clean and stable echo presentation, this will normally also increases the sonar’s detection range Frequency selection (...
Page 22: Transmission
Simrad SP70 Note that in rough seas, when the beam easily can miss the target in several pings, the PP filter must be used with care. TVG (Time Variable Gain) The TVG function controls the gain of the receiver so that a...
Page 23: Peripheral Equipment
• Simrad echo sounders (EQ, ES and EK Series) provides a bottom plot on the catch data page. • Simrad PI32 Net Monitoring system provides the net depth in digits and bars on the catch data presentation.
Page 24: Display Modes
Simrad SP70 DISPLAY MODES Introduction This chapter describes the SP70 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 25 Display modes Note that the descriptive order of the display modes in this chapter has been chosen only to simplify the descriptions. In operational conditions, the order of the display modes depends on the selected gear (seine net, bottom trawl or pelagic trawl) This is because different initial display modes are used for easy selection by the four Mode buttons on the Sonar Operating Panel.
Page 26: Bow Up
Simrad SP70 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 27: North Up
Display modes North Up When the North Up mode is selected, true north is always up on the screen. The vessel symbol is stationary with the bow pointing in the vessle’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 28: True Motion
Simrad SP70 True Motion When the 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 29: 180° / Audio
Display modes 180° / Audio When the 180° / Audio mode is selected, the upper half of the screen shows a 180 degrees 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 30: 180° / Echosounder (Option)
Simrad SP70 180° / Echosounder (Option) When the 180° / Echosounder mode is selected, the upper half of the screen shows a 180 degrees bow-up presentation, while the lower part is used for an echo sounder recording. This means that the sonar operates alternately as a normal sonar and an echo sounder for every second transmission.
Page 31: 180° / Vertical (Option)
Display modes 180° / Vertical (Option) When the 180° / Vertical mode is selected, the upper half of the screen shows a 180° bow-up presentation, while the lower part is used for a vertical slice presentation. In that way an echo can simultaneously be presented in both horizontal and vertical dimensions.
Page 32: 270° / Vertical
Simrad SP70 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 33: Omni / Vertical (Option)
Display modes Omni / Vertical (Option) The Omni / Vertical mode is specially made for trawling, where a complete overview of the horizontal and vertical situation is presented. The bearing of the vertical slice on the right-hand side is as in 180°...
Page 34: Omni / Echosounder (Option)
Simrad SP70 Omni / Echosounder (Option) The Omni / Echosounder mode is also specially made for trawling, but in this mode the trawl-locked vertical slice is replaced by an echo sounder recording. This to ensure a more correct depth indication in case the sonar beam is bent because of temperature layers.
Page 35: Bow Up / Vertical
Display modes Bow Up / Vertical When the 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 60 or 90 degree (optional) vertical slice presentation.
Page 36: True Motion / Vertical
Simrad SP70 True Motion / Vertical When the 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 60 or 90 degrees (optional) Vertical slice presentation.
Page 37: Dual 1
Display modes Dual 1 The Dual 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 38: Dual 2
Simrad SP70 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 39: Fish Tagging
Display modes Fish Tagging When you use the Fish Tagging mode, information about the current geographical position received from the ship’s satellite navigation system (GPS) are coded and transmitted on the sonar signal. The fishery research communities are placing tiny electronic tags with a built-in GPS receiver on fish.
Page 40: Sonar Operating Panel
Simrad SP70 SONAR OPERATING PANEL Introduction You may enter operational commands directly on the Sonar Operating Panel. Sonar functions may also be accessed and activated using the menu field on the display and the trackball on the operating panel. Frequently used functions are directly accessed by the designated control buttons.
Page 41: Main Switch
Sonar Operating Panel Main switch Main switch functions control power to the sonar, hoisting and lowering of the transducer and indicates the transducer’s current position. Power Pressing Power for approximately two seconds powers up the sonar. The adjacent green LED blinks while the Sonar Control Unit boots up, and remains illuminated once the system is operational.
Page 42: Symbol
Simrad SP70 Symbol The Symbol functions provide on-screen graphic references for 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 43 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 the Simrad FS trawl sonar or ITI trawl monitoring system with the sonar. • In the manual mode the trawl symbol will be displayed with the selected size, depth and distance.
Page 44: Mode
Simrad SP70 Mode The four Mode buttons can be used to select either the four favourite display modes or user settings. The set up the buttons to choose modes or settings, select Mode Buttons in the Display menu. Depending on the selection you make in the Mode Buttons menu, you have two options: •...
Page 45: Gain
Sonar Operating Panel Gain Gain controls are specified as either horizontal or vertical. Horizontal gain The two upper buttons control receiver gain effecting the horizontal presentation of the sonar. The level of gain selected is display in the Horizontal menu and on top of the tilt indicator in the upper left-hand side of the display.
Page 46: Range
Simrad SP70 Range Range controls are specified as either horizontal or vertical. Horizontal range The two upper buttons control the horizontal range. The range selected is displayed in the Horizontal menu, and on top of the tilt indicator in the upper left corner of the display.
Page 47: Cursor
Sonar Operating Panel Cursor The cursor is used for on-screen cursor orientation and menu operation. Menu The Menu button is used for selection between Menu or Full Screen presentations. When the main menu is displayed, the echo presentation will be reduced correspondingly.
Page 48 Simrad SP70 Trackball The trackball controls the cursor. The cursor changes appearance in relation to its location on the screen: • An Orange cursor in the echo field. • An arrow in the menu field. • A negative or positive sign at each end of the menu buttons.
Page 49: Train
Sonar Operating Panel Train 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 train left (arrow) or train right (arrow) buttons are used to direct the audio line to the desired bearing.
Page 50 Simrad SP70 When the Auto Tilt function is activated in the Position Track mode the tilt search centre is automatically adjusted with regard to the distance to the tracked position. Target track To track a target, place the cursor over the desired location and press the Target Track button.
Page 51: Tilt
Sonar Operating Panel Tilt Manual tilt In Manual mode the transducer may be tilted within the systems limits by pressing the Tilt up (arrow) or Tilt down (arrow) buttons. Pressing either button once changes the tilt angle in steps of 1 degree. Pressing and holding either button continuously changes the tilt angle until pressure is removed.
Page 52: Various
Simrad SP70 Various The buttons grouped under various are Zoom, Record, Mute and Off Centre. Mute The Mute button is used as to activate and deactivate the echo audio channel, and to acknowledge audible alarms. The Mute function is also available on the Display menu.
Page 53: Operation
Operation OPERATION Introduction What this chapter contains All operation of the sonar is normally made from the Sonar Operating Panel. Optionally, a standard mouse or trackball may be connected, and the sonar can then be operated by means of the menu system alone. This section contains a detailed description of the start and stop procedures, the principles of the menu operation, and other operational procedures for the daily use of the SP70.
Page 54: Maintaining The Sonar
Simrad SP70 Maintaining the sonar Maintenance procedures To ensure the best possible reliability of the SP70 sonar, it is important to follow the maintenance procedures described in the Maintenance chapter. Important when docking the vessel Caution When docking the vessel, disconnect the mains plug on the Sonar Processor Unit to prevent inadvertent use of the sonar.
Page 55: Start And Stop Procedures
Operation Start and stop procedures Note Before you start the sonar, check that the water depth is sufficient, and that the vessel’s speed is within the maximum speed specified with the transducer lowered. MAIN SW. Start procedure Observe the following procedure to power up the sonar. Press the Power button on the monitor to power up the display monitor.
Page 56: Stop Procedure
S101 (CD15006) Design change On sonars shipped from Simrad before August 2003, the APC10 Sonar Processor Unit is used. This unit is also equipped with an “on/off” switch behind a front panel. It has also an additional “master on/off” switch on its rear panel. Instead of disconnecting the mains plug, this switch can be set to “off”.
Page 57: Dry-Docking Safety Measures
Operation Procedures for emergency hoisting are provided in the Maintenance chapter. Dry-docking safety measures To prevent inadvertent use of the sonar when dry-docking etc., disconnect the mains plug for the Sonar Processor Unit. Warning Transmitting in air will damage the transducer! Related topics →...
Page 58: Menu Operation
Simrad SP70 Menu operation Introduction The menu system on the SP70 sonar is designed to allow for easy and fast access to the parameters. The menu can be removed from the screen. Some of the parameters (for example Range, Gain and Tilt) can be controlled both from the button on the menu and from buttons on the Sonar Operating Panel.
Page 59: Screen Presentations
Operation Screen presentations The menu can be set up for permanent display, or available only when required for parameter alterations. The Menu button on the Sonar Operating Panel is used to select Menu or Full Screen presentation. Typical screen presentation with the menu on the right hand side (CD15008A)
Page 60 Simrad SP70 Full screen presentation with the menu hidden from view (CD15008B) Full screen presentation with temporary menu (CD15008C) 850-164186 / Rev.D...
Page 61: Menu Structure
Operation Menu structure The menu field on the sonar display contains several different buttons, tabs and parameter dialogues. (A) Sonar type: The upper “button” indicates the sonar in operation. You can not press this button. (B) Mode selection: The second button is used to display the current mode.
Page 62: Menu Buttons
Simrad SP70 Menu buttons Each menu contains several buttons. Each button shows both the function and the current parameter. The majority of the buttons in each menu field have three functions. • You can select a lower parameter value. • You can select a higher parameter value.
Page 63: Selecting A New Parameter Value
Operation Selecting a new parameter value The menu system is operated by the trackball and the Select button on the Sonar Operating Panel. CURSOR When you have gained more experience, and Object Menu Select View have become more familiar with the available options, you will select the parameters directly from the “smart”...
Page 64 Simrad SP70 The parameter value shown in the button is operational even without closing the parameter dialogue. This makes it easy to test the effect of each parameter setting. Note that the transceiver related parameters will first be in operation in the next ping.
Page 65: Stored Parameters
Operation Stored parameters Default settings The parameter settings identified with an asterisk (*), indicates the normal setting known to perform well under normal conditions. If you get “lost“ in the parameter settings, the Default settings function will bring up these normal parameters.
Page 66: Visual Aids
Simrad SP70 Visual aids Common information on the display In nearly all display modes, the following information is provided. • The Tilt indicator is displayed in the upper left corner. The selected range and gain is shown on top of this indicator.
Page 67: Cosmetics
Operation Cosmetics The choices in the Cosmetics menu allows you to enable or disable a range of visual aids in the sonar picture. Sonar display with Bearing Card (A) Wind Marker (B) and Distance Rings (C) enabled (CD15014A) (A) The Bearing Card shows the current bearing relative to the vessel.
Page 68 Simrad SP70 Sonar display with Variable Range Marker (D), Compass Card (E) and Vertical Ring (F) enabled. The Vertical Ring reflects the vertical range setting. 100 m 200 m 1123 m 300 m 400 m (CD15014B) (D) The VRM (Variable Range Marker) consists of an adjustable range ring with range readout.
Page 69 Operation Sonar display with Vertical Depth dividers (G), Track history with Minute Markers (H) and Bow Marker (I) enabled. 100 m 200 m 300 m 400 m (CD15014C) (G) The Depth dividers are horizontal dotted lines used to visualize the depth steps in the vertical slices. (H) The Minute markers are shown as small circles on the track history of the ship.
Page 70: Installation Of Options
• Scientific output Note that all options are pre-programmed into the standard sonar version, and that Simrad offer a 1 month free test period for certain options. When ordering a permanent option installation, a code word will be released from Simrad.
Page 71 HWID - This field displays the unique 12-character Hardware Identification code. This code is different for each SP70 sonar. Simrad uses this code to generate the 32-characters code word used for a permanent option installation. Try - A number of buttons, where each will start the 1 month free test period for the chosen option.
Page 72: On-Line Help
Simrad SP70 On-line help The SP70 sonar is equipped with a comprehensive on-line help system. It is available from all the parameter dialogues and menus by pressing the Help button. Help is provided in two levels: On-line and Free. Once pressed, the first Help text will appear in the bottom of the menu.
Page 73: Menu Descriptions
Menu description MENU DESCRIPTIONS Introduction This section provides a detailed description of the complete menu system for the SP70 sonar, and contains the chapters listed below. For an explanation of how to operate the menu system, refer to the section Menu operation. The SP70 comprises a large number of different menus on several levels.
Page 74: Active Menus
Simrad SP70 Active menus Overview 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 Select button on the Sonar Operating Panel.
Page 75: Horizontal
Menu description Horizontal The Horizontal menu is used to control the horizontal presentations. The parameters chosen are present in all display modes. When a horizontal parameter setting is selected and defined in one mode, the chosen settings will automatically be applied to all modes.
Page 76: Vertical
Simrad SP70 Vertical The Vertical menu is only shown in modes with a vertical slice function. All relevant settings, except the TX Power, can be 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 77: Display
Menu description Display The Display menu is shown in all 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. Full Screen - Replica of the Menu button on the Sonar Operating Panel.
Page 78: Setup
Simrad SP70 Setup The Setup menu is shown in all display modes, and gives access to parameters controlling the processing and algorithms in the sonar system. It also provides access to specific system parameters and functions such as Test and Store/Recall.
Page 79: Objects
Menu description Objects The Objects menu is shown in all display modes, and displays the range (R), bearing (B) and depth (D) to all selected objects. The identification (ID) abbreviations for the different objects are: AT - Automatic Target Track Marker Ci - Circle Marker M - Target Marker OS - Own Ship Marker...
Page 80: Echosounder
Simrad SP70 Echosounder This menu menu is only shown in the 180°/Echosounder mode, where it appears automatically. The Echosounder menu allows you to change the operational parameters on the “echo sounder” operation of the sonar. You can then use the sonar with different settings for the 180 degree view than for the echo sounder view.
Page 81: Trawl
Menu description Trawl The Trawl menu is only shown in the Omni/Vertical mode, where it appears automatically. This menu allows you to change the operational parameters on the “trawl” operation of the sonar. Trawl parameters → Range, page 135 → Bearing, page 101 →...
Page 82: Fish Tagging
Simrad SP70 Fish Tagging This menu is used for fish tagging. The Fish Tagging menu is only shown in the Fish Tagging mode. This mode is used for scientific purposes only, and the sonar will not display any echoes. The menu allows you to change the transmit parameters.
Page 83: Temporary Menus
Menu description Temporary menus The Temporary menus are those selected from the active menus. They are also shown with vertical tabs on the right side of the menu, and can easily be selected by the trackball and the Select button. The Temporary menus must however be removed manually using the Close button in the bottom of menu.
Page 84: Cosmetics
Simrad SP70 Cosmetics The Cosmetics menu is activated by pressing the Cosmetics button in the Display menu. It provides access to various parameters controlling the appearance of the sonar picture. All the functions - except Track history - are on/off buttons.
Page 85: Store/Recall
Menu description Store/Recall The Store/Recall menu is activated by the Store/Recall button in the Setup menu. The Store/Recall menu is used to store single display pictures or a sequence or pictures. The stored pictures can easily be recalled for evaluation or comparing schools. Store/Recall parameters Store - This is the “record”...
Page 86: System Test
Simrad SP70 System test The System test menu is activated by the Test button in the Setup menu. The System test menu provides several test routines available to perform operational and functional tests. These tests are designed only to be carried out by qualified service engineers.
Page 87 Menu description About - This button provides access to a small information dialogue providing the current software version. The Close button closes this menu. The Help button opens the on-line help. Related topics → Message bar, page 126 → About, page 97 850-164186 / Rev.D...
Page 88: Sort Modes
Simrad SP70 Sort Modes The Sort Modes menu is activated by the Sort Modes button in the Setup menu. The Sort Modes menu is used to select the display modes to be activated by the four Mode buttons on the Sonar Operating Panel.
Page 89: Pop-Up Menus
Menu description Pop-up menus The pop-up menus are accessed using the View and Object buttons on the Sonar Operating Panel, or the middle and right mouse buttons if an optional mouse is installed. Each button will present a small menu, and it appears at the cursor’s current location.
Page 90: View Pop-Up
Simrad SP70 View pop-up The View pop-up menu is accessed using the View button over the trackball on the Sonar Operating Panel or the middle mouse button if an optional mouse is installed. When activating the pop-up menu in the Catch Data view, it will display the following reduced menu.
Page 91 Menu description Grey scale data - This command changes the display from a colour presentation to a black-and-white. The number of shades of grey and the number of different colours used will be the same. The Grey scale data command can be selected for singular sonar views independent of each other.
Page 92: Object Pop-Up
Simrad SP70 Object pop-up The Object pop-up menu is accessed using the Object button over the trackball on the Sonar Operating Panel, or the right mouse button if an optional mouse is installed. This pop-up menu is mainly used when you operate the sonar from an optional mouse, as most of the functions on it can be selected directly on the Sonar Operating Panel.
Page 93 Menu description Object pop-up parameters Basic functions - These choices provide the same functions as their respective buttons on the Sonar Operating Panel. - Target Track - Position Track - Set Marker - New Own Ship Marker - Circle Marker - Gear Symbol New ruler - When this function is selected, a straight line is drawn from the current cursor position (where the Object...
Page 94: View Menus
Simrad SP70 View menus The View menus are activated from the View pop-up menu, which again is accessed using the View button on the Sonar Operating Panel or the middle mouse button. The View menus are shown with vertical tabs on the right hand side, and the menus can easily be closed using the Close button in the lower part of each menu.
Page 95: Geoview
Menu description GeoView The GeoView menu is activated by pressing the View button on the Sonar Operating Panel or the middle mouse button in any horizontal view, and then selecting View menu in the View pop-up. The GeoView menu provides control of selected parameters related to the current data displayed in the horizontal view;...
Page 96: Verticalview
Simrad SP70 VerticalView The VerticalView menu is activated by pressing the View button on the Sonar Operating Panel or the middle mouse button while positioning the cursor in any of the vertical views, and then selecting View menu in the View pop-up.
Page 97: Echoview
Menu description EchoView The EchoView menu is activated by pressing the View menu button on the Sonar Operating Panel or the middle mouse button while operating in the Echosounder view (Omni/Echosounder or 180º/Echosounder modes), and then selecting View menu on the View pop-up.
Page 98: Trawlview
Simrad SP70 TrawlView The TrawlView menu is activated by pressing the View button on the Sonar Operating Panel or the middle mouse button while operating in the Trawl view (Omni/Vertical mode), and then selecting View menu in the View pop-up.
Page 99: Catchview
Menu description CatchView The CatchView menu is activated by pressing the View button on the Sonar Operating Panel or the middle mouse button while the cursor is located in the Catch view, and then selecting View menu in the View pop-up. The Catch view is only available in the 270º/Vertical, True Motion/Vertical and Bow up/Vertical display modes, and you may need to hide the menu to see it.
Page 100: Messages
Simrad SP70 Messages Message categories 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 and Errors. In order to access the messages, the Message bar must be enabled.
Page 101: Warnings
Menu description Warnings The Warnings menu is activated from the Warnings button in the Message bar. The Warnings menu displays the warning messages issued by the sonar. Each warning is identified with time of issue and a heading. Additional information is found in the small text field below the message list.
Page 102: Operator Alarms
Simrad SP70 Operator alarms The Operator alarms dialogue is activated from the Op.Alarms button in the Message bar. The Operator alarms menu displays the alarms issued by the sonar. Each alarm message is identified with time of issue and a heading.
Page 103: System Alarms
Menu description System alarms The System alarms dialogue is activated from the Sys.Alarms button in the Message bar. The System alarms dialogue displays the alarms issued by the sonar. Each alarm message is identified with time of issue and a heading.
Page 104: Errors
Simrad SP70 Errors The Errors dialogue is activated from the Errors button in the Message bar. The Errors menu displays the alarms issued by the sonar. Each error message is identified with time of issue and a heading. Additional information is found in the small text field below the message list.
Page 105: Parameters
Parameters PARAMETERS About parameter dialogues and help This chapter describes all the parameter dialogues accessed from the menu system. When a parameter is selected, the available choices are shown in the dialogue below the menu. The setting is then made using the available buttons or lists.
Page 106: Alphabetical List
Simrad SP70 Alphabetical list The following is an overview of available parameters incorporated in the SP70 sonar system. → → About, page 97 Range, page 135 → → AGC, page 98 Range (CatchView), page 136 → → Audio volume, page 99 Range (EchoView), page 137 →...
Page 107: About
Parameters About The About parameter dialogue is accessed from the System test menu. The About dialogue is only used to provide information about the current software version. In addition, the Versions button opens a small text document with detailed version information. This information is not intended for operational use.
Page 108: Agc (Automatic Gain Control)
Simrad SP70 AGC (Automatic Gain Control) The AGC parameter is accessed from the Horizontal, Vertical , Echo sounder and Trawl menus. 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.
Page 109: Audio Volume
Parameters Audio Volume The Audio Volume is accessed from the Horizontal and Vertical menus. The Audio Volume in the loudspeaker can be selected in 10 steps. The audio channel, from which the audible information is retrieved, is shown with a continuos white line. This line can be trained by using the training controls on the Sonar Operating Panel or the Train button in the menus.
Page 110: Beam
Simrad SP70 Beam The Beam parameters are accessed from the Horizontal menu. The Beam command 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 111: Bearing (Horizontal)
Parameters Bearing (Horizontal) The Bearing parameters are accessed from the Horizontal menu. The Bearing of the audio channel is normally controlled from the Sonar Operating Panel. The selected bearing is shown with a continuous white line pointing out from the transducer position. This line can be trained manually or automatically in any position.
Page 112 Simrad SP70 Absolute/Relative Click Absolute to set bearing of the audio channel to be relative to true north. Click Relative to set the bearing to be relative to the vessel’s bow. Manual/Auto In Manual mode, the audio channel can be trained continuously in either direction by pressing the two arrow buttons in the Train field on the Sonar Operating Panel.
Page 113: Bearing (Display)
Parameters Bearing (Display) The Bearing button is located in the Display menu. This is simply a selector switch. Click on the button to select True north or Relative ship. Certain bearing data will change their values accordingly. The following bearing data will change when you switch between the two settings: •...
Page 114: Bearing (Vertical)
Simrad SP70 Bearing (Vertical) The Bearing (Vertical) parameter is accessed from the Vertical menu. This dialogue allows you to train the audio channel bearing manually. The Bearing of the audio channel is normally controlled with the Train buttons on the Sonar Operating Panel.
Page 115: Colour Threshold
Parameters Colour Threshold The Colour Threshold button is located on the Display menu. The Colour Threshold function is used to reduce the number of echo colours on the display. The strength of the echoes is indicated with a scale of 16 or 64 colours.
Page 116: Colours
Simrad SP70 Colours The Colours button is located in the Display menu. The colour strength of the echo presentation can be selected with three different colour scales. Under normal conditions, the Normal colours will give the best dynamic in the echo presentation, while Strong colours are preferred for weaker echoes.
Page 117: Data Source
Parameters Data Source The Data Source button is located in the Vertical View and the Trawl View menus. The Vertical View menu is are activated by pressing the View button on the Sonar Operating Panel (or the middle mouse button) while positioning the cursor in any of the vertical views, and then selecting View menu on the View pop-up menu.
Page 118: Dead Reckoning
Simrad SP70 Dead Reckoning Dead Reckoning is accessed from the Setup menu. Dead Reckoning is used to improve the position of the historical track line from the vessel, relative to the actual position of the drifting fishing gear. When OFF, the vessel movement and track line will be calculated from the GPS data, which then will be relative to the bottom.
Page 119: Default Setting
This function makes it possible to delete all the parameters currently saved in the sonar’s memory, and re-install those defined by Simrad instead; the factory default settings. These default settings are identified with an asterisk in the different parameter dialogues and menus, and will perform well under normal conditions.
Page 120: Direction Indicator
Simrad SP70 Direction Indicator The Direction Indicator is accessed from the Vertical View and the Trawl View menus when Data Source is set to Indicator. The Vertical View menu is activated by pressing the View button on the Sonar Operating Panel (or the middle mouse button) while positioning the cursor in any of the vertical views, and then selecting View menu on the View pop-up menu.
Page 121: Display Gain
Parameters Display Gain Display Gain is accessed on the Display menu. The Display Gain increases or decreases the presentation of the echo colours on the display. In order to adjust the receiver gain, refer to the individual Gain parameters accessed in the Horizontal and Vertical menus.
Page 122: Edit Gear (Purse)
Simrad SP70 Edit Gear (Purse) The Gear parameter dialogue is accessed on the Setup menu. Each of the available options in the Gear dialogue can be edited using the Edit button. When a purse has has been selected, this parameter dialogue is provided.
Page 123: Edit Gear (Trawl)
A dedicated parameter dialogue is provided to define the distance to the trawl. The setting is made automatically if you click the Auto button, provided that a Simrad trawl system is connected to the sonar. If you click Manual, you can define the setting in steps of 10 meters.
Page 124 A dedicated parameter dialogue is provided to define the width of the trawl opening. The setting is made automatically if you click the Auto button, provided that a Simrad trawl system is connected to the sonar. If you click Manual, you can define the setting in steps of 10 meters.
Page 125: Edit School
Parameters Edit School The Edit School parameter dialogue is accessed from the School button in the Setup menu. In the School dialogue, select species and press Edit. The top button displays the fish species selected in the School dialogue. The Edit School dialogue displays the species of fish and its presently selected density.
Page 126: Expansion
Simrad SP70 Expansion The Expansion parameter is accessed from the Echo View menu. The Expansion function is used to expand the echo view around the trawl symbol or the bottom. To expand around the bottom, an external echo sounder must be connected.
Page 127: External Synchronization
The External Sync button is located in the Setup menu. The External synchronization 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.
Page 128: Fish Alarm
Simrad SP70 Fish Alarm The Fish Alarm button is located in the Setup menu. The Fish Alarm function makes it possible to set up the sonar to warn you when a school of fish are detected inside the selected sector. The selected sector is displayed with white dashed lines in the horizontal sonar picture.
Page 129: Frequency
However, the sound absorption in salt water decreases with the frequency, thus giving lower frequencies a longer range. If only the standard frequency is installed, Simrad offers a one-month free test period for the multiple frequencies. 850-164186 / Rev.D...
Page 130: Gain
Simrad SP70 Gain The Gain is accessed from the Horizontal, Vertical, Echo sounder and Trawl menus. The Gain is normally selected from the Sonar Operating Panel. It has 51 values, these are numbered from 0 to 50. The receiver gain is changed 1 dB per step. In addition to the readout on the Gain button, the horizontal gain is normally repeated over the tilt indicator in the upper left hand corner on the display.
Page 131: Gear
Parameters Gear The Gear button is located in the Setup menu. The Gear parameter dialogue is used to select the type of fishing gear, and to get the right size and position of the gear on the display. By using Edit... it is possible to program the system for three different purse seines, three different bottom trawls, and three different pelagic trawls.
Page 132: Heading
Simrad SP70 Heading The Heading parameter is accessed by pressing the Hdg (Heading) button in the Status dialogue at the bottom of the menus. The Heading readout is a repetition of the connected course gyro input. Manual heading input may be used if signals from external sensors are missing.
Page 133: Inspect Object
Parameters Inspect Object The Inspect Object parameters are either accessed when you select a target marker in the Objects menu, or when you place the cursor on the marker and pushes the Select button on the Sonar Operating Panel. The Inspect object parameter dialogue displays the current parameters for the chosen object.
Page 134: Language
Simrad SP70 Language The Language button is located on the Display menu. The Language parameter dialogue is used to select the language on the menus. 850-164186 / Rev.D...
Page 135: Menu
Parameters Menu The Menu button is located in the Display menu. The Menu parameter is used to select different levels of complexity of the menu system. • For simplified use, select the Short menu system. Only the most important parameters will then be shown in the menus. •...
Page 136: Message Bar
Simrad SP70 Message Bar The Message Bar button is located in the System test menu. This menu is accessed by pressing the Test... button on the Setup menu. The sonar automatically issues messages when a disturbance occur. The messages are grouped into four categories;...
Page 137: Mode
Parameters Mode The Mode button is located on the top of every menu. The Mode parameter dialogue is used to select display mode. It will automatically provide a selection between the modes currently available on the sonar. The various dipslay modes are described in the Display Modes chapter.
Page 138: Mode Buttons
Simrad SP70 Mode Buttons The Mode Buttons button is located in the Display menu. 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 Mode buttons on the Sonar Operating Panel.
Page 139: Movements
Parameters Movements The Movements button is located in the Setup menu. The Movements function makes it possible to estimate the position of a tracked school at a given time (from one to ten minutes). Estimate school position is presented by a violet dot. When selecting 0, the movement estimation is switched Off.
Page 140: Palette
Simrad SP70 Palette The Palette button is located in the Display menu. The Palette parameter dialogue is used to select background colours and day/night brightness of the display. 850-164186 / Rev.D...
Page 141: Panel Backlight
Parameters Panel Backlight The Panel Backlight button is located in the Display menu. The Panel Backlight controls the illumination on the keyboard on the Sonar Operating Panel in 8 steps (0 – 7). Note that the Panel Backlight can only be manually operated. The Auto button is added for future expansion.
Page 142: Pp Filter
Simrad SP70 PP Filter The PP Filter can be accessed from the Horizontal, Vertical, Echo sounder and Trawl menus. The PP Filter (Ping-to Ping filter) reduces unwanted noise and echoes from the screen. The filter has three different strengths. As the ping-to-ping filter compares the echoes from the last 2...
Page 143: Pulse Form
Parameters Pulse Form The Pulse Form is accessed from the Horizontal, Vertical, Echo sounder and Trawl menus. The Pulse Form parameter dialogue is used to select the form of the transmitter pulse. This could either be CW (Continuous Wave) with different pulse lengths, or FM (Frequency Modulation) with different pulse lengths and number of frequencies.
Page 144 Simrad SP70 There is a selection between three different pulse lengths: Short, Normal and Long. In addition the pulse length will change automatically in accordance with the selected range. The table shows the different pulse lengths given in milliseconds (ms).
Page 145: Range
Parameters Range The Range parameter can be accessed from the button in the Horizontal, Vertical, Echo sounder and Trawl menus. Horizontal and vertical range is normally selected using the SP70 Sonar Operating Panel. You can also control these settings directly on the Range button. The available choices are listed in this dialogue.
Page 146: Range (Catch View)
Simrad SP70 Range (Catch View) The Range (Catch View) button is located in the Catch View menu. The CatchView menu is activated by pressing the View button on The Sonar Operating Panel (or the middle mouse button), while the cursor is located in the Catch view, and then selecting View menu on the View pop-up menu.
Page 147: Range (Echo View)
Parameters Range (Echo View) The Range (Echo View) parameter is located in the Echo View menu. The EchoView menu is activated by pressing the View button on The Sonar Operating Panel (or the middle mouse button), while the cursor is located in the Echo sounder view, and then selecting View menu on the View pop-up menu.
Page 148: Rcg (Reverberation Controlled Gain)
Simrad SP70 RCG (Reverberation Controlled Gain) The RCG button is located in the Horizontal, Vertical, Echo Sounder and Trawl menus. The RCG (Reverberation Controlled Gain) regulates the receiver gain individually for each of the 64 receiving beams. In Weak and Medium selections, signals with small variations,...
Page 149: Recall
Parameters Recall The Recall button is located in the Store/Recall menu, which is accessed from the Setup menu. The Recall button is used to retrieve the previously stored display 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 150: Ruler
Simrad SP70 Ruler To create a ruler, open the Object pop-up menu by clicking Object on the Sonar Operating Panel (or the right mouse button), and select New ruler in the Object pop-up menu. To open the Ruler dialogue, click on the ruler with the Select button.
Page 151: Scale
Parameters Scale The Scale button is located in the Geo View menu. The GeoView menu is activated by pressing the View button on the Sonar Operating Panel or the middle mouse button in any horizontal view, and then selecting View menu in the View pop-up menu.
Page 152: School
Simrad SP70 School The School button is located in the Setup menu. The School parameter is used to obtain information of the volume estimation of a school in the automatic target tracking program. Four types of known fish species plus Own school can be selected.
Page 153: Scientific Output (Option)
Parameters Scientific Output (Option) The Scientific Output button is located in the Setup menu. The Scientific Output functionality is designed to be used when the sonar is used for scientific purposes. When enabled, the sonar will provide special information on an ethernet port. The data provided by the the Scientific Output function can be enabled or disabled using the following buttons: •...
Page 154: Search Sector
Simrad SP70 Search Sector The Search Sector is accessed from the Bearing paramater dialogue, which is turn is opened from the Horizontal menu. The Search Sector parameter dialogue is used to define the size (in degrees) of the search sector, in which the audio beam will travel back and forth when the Auto Search mode is enabled.
Page 155: Search Step
Parameters Search Step The Search Step is accessed from the Bearing paramater dialoge, which is turn is opened from the Horizontal menu. The Search Step parameter dialogue is used to define the size of each step (in degrees) the audio beam will travel between each transmission.
Page 156: Sector
Simrad SP70 Sector The Sector is accessed from the Horizontal menu. The Sector is defined as the sector covered by one ping. The size of the sector can be selected between 360 degrees (Omni) and 11 degrees (single beam). When you select 11 degrees, the current bearing will be the centre of the audio beam.
Page 157: Slant Range/True Range
Parameters Slant Range/True Range The Slant Range/True Range button is located in the Cosmetics menu, which in turn is accessed from the Display menu. In the True Range presentation the echo distance is the distance which the vessel must sail in order to come on top of the target. In the Slant Range presentation the distance to the target is measured along the tilt angle.
Page 158: Speed
Simrad SP70 Speed The Speed parameter is accessed by pressing the Spd (Speed) button in the Status dialogue at the bottom of the menus. The Speed readout is a repetition of the connected speed input source, which can be a separate speed log input or data from the connected (D)GPS.
Page 159: Stabilizer
Parameters Stabilizer The Stabilizer button is located in the Setup menu. When the stabilizer is active, the transducer beam will be stabilized electronically for roll and pitch. The beam direction will change continuously according to the vessel’s movements, and thus be compensated whenever the vessel is out of trim. The beam angle will always be maintained as if referred to a “flat”...
Page 160: Start Range / Stop Range
Simrad SP70 Start Range / Stop Range The Start Range / Stop Range button is located in the EchoView menu. The functionality of this button depends on the Expansion setting. If Expansion is set to Trawl, this button will appear as Start Range.
Page 161: Status
Parameters Status The Status dialogue is the default view displayed in the lower, right hand corner of the screen. The Status dialogue can not be closed, but if an other parameter is selected it will be overwritten. The dialogue contains a transducer position indicator, as well as readouts of current time, date, latitude, longitude, heading and speed.
Page 162: Store
Simrad SP70 Store The Store button is located in the Store/Recall menu, which is accessed from the Setup menu. The Store button is used to store display information. This may be a sequence loop or single display pictures, as selected in the Store mode dialogue.
Page 163: Target Track
Parameters Target Track The Target Track button is located in the GeoView menu. The GeoView menu is activated by pressing the View button on the Sonar Operating Panel or the middle mouse button in any horizontal view, and then selecting View menu in the View pop-up menu.
Page 164: Tilt
Simrad SP70 Tilt The Tilt parameters are accessed from the Horizontal menu. The Tilt is normally controlled from the Sonar Operating Panel. On the standard version, the transducer can be tilted electronically from +10 degrees up to -60 degrees down, and on the optional 90 degrees tilt version, it may be tilted down to -90 degrees.
Page 165: Time And Date
Parameters Time and Date The Time and Date dialogue box is accessed by pressing the Time or Date buttons in the default Status dialogue at the bottom of the menu. Time and date are battery powered and stored in the memory when the sonar is switched off. The Date/Time properties dialogue box is provided by the sonar’s operating system, and it is used to change time, date and time zone settings.
Page 166: Track History
Simrad SP70 Track History The Track History is accessed from the Cosmetics menu. The Track History lines show the movement history of your own ship as a line after the vessel symbol. When this function is active, the length (in time) of the history lines can be set.
Page 167: Track Window
Parameters Track Window The Track Window parameter is accessed from the Setup menu. The Track Window command 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 168: Transducer
Simrad SP70 Transducer The Transducer button is located in the Status dialogue at the bottom of the menus. The Transducer position is normally selected from the Sonar Operating Panel, and in addition to the LED indicators on the panel, the transducer position will be indicated in the Status dialogue.
Page 169: Tvg (Time Variable Gain)
Parameters TVG (Time Variable Gain) The TVG button is located in the Horizontal, Vertical, Echosounder and Trawl menus. The TVG controls the gain in the signal amplifier. The gain is weakest just after the ping, and increases in accordance with time (and therefore range).
Page 170: Tx Power
Simrad SP70 Tx Power The Tx Power button is accessed from the Horizontal, Vertical, Echo sounder and Trawl menus. The TX Power is used to select the transmitter output power. Note that the TX Power parameter is common for all the menus.
Page 171: Units
Parameters Units The Units button is located on the Display menu. When activated, it opens the Engineering Units parameter dialogue. This parameter dialogue is used to set up the various units used by the sonar to display all measurements. Separate units are available for Range, Equipment, Depth, Speed, Position and Temperature.
Page 172: User Setting
Simrad SP70 User Setting User Setting is accessed from the Setup menu. The User Setting is used to store the parameter settings for different type of fisheries, or individual user related settings. The stored settings can easily be loaded back into the operative menus using the Mode buttons on the Sonar Operating Panel.
Page 173: Wind Direction
Parameters Wind Direction The Wind Direction button is located in the Setup menu. The wind marker is show in the outer area of the echo presentation as a white arrow. This arrow can be manually adjusted for indication of the wind or current direction, or automatically show the wind direction if a wind sensor is connected.
Page 174: Wind Speed
Simrad SP70 Wind Speed The Wind Speed button is located in the Setup menu. The Wind Speed is not used as a parameter in the sonar. It is only a readout if a wind sensor is connected. 850-164186 / Rev.D...
Page 175: Zoom
Parameters Zoom The Zoom button is located in the Vertical View and Trawl View menus. The Zoom function is used to zoom in on the vertical view around the trawl symbol or the bottom. To zoom in on the bottom, an external echo sounder must be connected to the sonar.
Page 176: Zoom Scale
Simrad SP70 Zoom Scale The Zoom button is located in the Vertical View and Trawl View menus. The Zoom Scale is used for scaling the zoom around the Trawl symbol or the bottom. 850-164186 / Rev.D...
Page 177: 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 must be left to an authorized Simrad service engineer. Topics → Wheelhouse units, page 168 →...
Page 178: Wheelhouse Units
Simrad SP70 Wheelhouse units Cleaning The units must be kept clean and dry. Remove salt water residue with a soft cloth moistened in fresh water. Do not use strong solvents. Note The display screen must be handled with care to avoid damage to the anti-glare filter coating.
Page 179 On-board maintenance MC70 Sonar Processor Unit The two dust filters on the MC70 are located on the air inlets on the front side of the Sonar Processor Unit. The dust filters on the MC70 Sonar Processor Unit (CD7023) The filter is accessible by simply pulling off the filter grid. Each filter should be vacuum cleaned, or washed in soap and water.
Page 180: Transceiver Unit
Simrad SP70 Transceiver Unit Dust filter There is a dust filter in the bottom of the Transceiver Unit. To avoid overheating, this must be inspected, and if necessary, cleaned once every third month. The dust filter is accessible from the outside of the Transceiver Unit, by unscrewing the eight finger nuts in the bottom of the unit.
Page 181: Hull Unit
On-board maintenance Hull unit General The sonar hull unit must be under continuous watch as a part of the vessel’s machinery. As the hull unit may be exposed to severe strain because of pitching and vibrations, it must be inspected regulary for loose parts. Topics →...
Page 182: Sp75 Hull Unit Familiarization
Simrad SP70 SP75 Hull unit familiarization Observe the illustration below for the identification of the main parts. A) Upper limit switch S304 B) Transducer shaft C) Lower limit switch S305 D) Air bleeding cock E) Hoist motor F) Motor Control Unit...
Page 183 On-board maintenance SP71, SP72, SP73 and SP74 familiarization The SP70 sonar can also be supplied with any of the hull unit types listed. Observe the illustration below for the identification of the main parts. A) Upper limit switch S304 B) Transducer shaft C) Lower limit switch S305 D) Hand crank E) Hoist motor...
Page 184 Simrad SP70 SP70 Hull Unit familiarization SP70 sonars supplied before January 2004 were provided with a different standard hull unit; the SP70. Observe this illustration for identification of the main parts. A) Upper limit switch B) Transducer shaft C) Lower limit switch...
Page 185: Docking The Vessel
On-board maintenance Docking the vessel When docking the vessel, great care must be taken not to damage the sonar trunk and protecting blister. Warning The sonar must never be powered up when the ship is in dry dock. The transducer will be damaged if it transmits in open air.
Page 186 Simrad SP70 On vessels which have been in dock, the Hull Unit must be thoroughly examined, and the hoist/lower functions must be checked out and observed while operating the Hoist/Lower Switch (S302 in the Motor Control Unit). The hoist/lower motor will automatically stop when the transducer shaft reaches the upper or lower limit switch.
Page 187: Cleaning The Transducer
On-board maintenance Cleaning the transducer The transducer normally needs little attention. However, the transducer face should be inspected and cleaned whenever the vessel is in dock. To lower the transducer when in dock, use the hoist/lower switch S302 in the Motor Control Unit (mounted on the gantry). Set the switch to STOP to position the transducer at any vertical location.
Page 188: Hoist Motor Overload Protection
Simrad SP70 Hoist motor overload protection To prevent the hoist/lower motor from overload, an overload circuit breaker S301 is located in the Motor Control Unit. This may automatically be switched off during hoisting if the vessel’s speed is too high, or if the transducer shaft has been bent.
Page 189: Emergency Hoisting And Lowering
On-board maintenance Emergency hoisting and lowering In case of a failure or an emergency in the normal hoist/lower operation controlled from the Sonar Operating Panel, the transducer may be hoisted and lowered from the Sonar Room. Local control switch S302 If the 3-phase voltage for the hoist/lower motor and the +24 Vdc stand-by voltage from the Transceiver Unit are available, the transducer can be hoisted or lowered by means of switch S302...
Page 190 Simrad SP70 Use the hand crank to hoist and lower the transducer. When finished, loosen the brake release screw to engage the motor brake. Check with the hand crank to ensure that the motor brake is engaged. Remove the hand crank from the stub shaft, and mount it in its storage position in the Motor Control Unit.
Page 191: Air Bleeding
On-board maintenance Air bleeding To avoid damage to the transducer by transmitting in air inside the trunk, the air bleeding system must be checked after the ship has been docked. Observe the following procedure. Close the air bleeding cock on top of the trunk flange and dismount the pipe.
Page 192: Lubrication
Simrad SP70 Lubrication From the factory, the Hull Unit is lubricated with the types of oil or grease as specified below. However, if of equal quality, other types may be used. The numbers below refer to the lubrication points on the illustration to the left.
Page 193 On-board maintenance The SP71, SP72, SP73 and SP74 hull units are lubricated with the types of oil or grease as specified below. However, if of equal quality, other types may be used. The numbers refer to the lubrication points on the illustration to the left. (1) The ball bearing on each end of the hoist/lower screw must be lubricated with normal ball bearing grease.
Page 194 Simrad SP70 The SP70 hull unit provided before January 2004 is lubricated with the types of oil or grease as specified below. However, if of equal quality, other types may be used. The numbers refer to the lubrication points on the illustration to the left.
Page 196 E 2004 Simrad AS ISBN 82-8066-009-07 Simrad AS Strandpromenaden 50 Box 111 N-3191 Horten Telephone: +47 33 03 40 00 Facsimile: +47 33 04 29 87 M A X I M I Z I N G Y O U R...

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Simrad SP70 - REV D Operator's Manual

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