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Simrad EQ 55 Operator's Manual

Simrad EQ 55 Operator's Manual

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EQ 55 OPERATORS MANUAL
950-70017001
Issue 1.2
February 1998

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  • Page 1 EQ 55 OPERATORS MANUAL 950-70017001 Issue 1.2 February 1998...
  • Page 3 18 months from date of product shipment from the manufacturing facility (which ever occurs first). Kongsberg Simrad Mesotech will - at no charge - repair or replace (at its option) any part(s) determined to be defective of workmanship or materials, provided the warranty claim is made to either the manufacturing facility, or its authorized repair centres within the warranty period.

  • Page 5: List Of Contents

    EQ 55 Operators Manual 950-70017001/1.2 List of Contents Page 1 LIST OF CONTENTS Part 1 ............Introduction and System Familiarization Part 2 ..................Operation of the EQ55 Part 3 ..................Principles of Operation Part 4 ....Installation Instructions for the EQ-55, Drawer, and Stand Alone Part 5 .......

  • Page 6: List Of Contents

    950-70017001/1.2 EQ 55 Operators Manual Page 2 List of Contents Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 7 10.96 Update Draft 09.96 First Release To assist us in making improvements to the product and this document, Simrad Mesotech welcomes comments and constructive criticisms. Please send all such comments, in writing, to: Kongsberg Simrad Mesotech Ltd. Documentation Department 1598 Kebet Way...
  • Page 8 950-70017001/1.2 EQ 55 Operators Manual Page 4 List of Contents Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 9: Table Of Contents

    1.5.2 Troubleshooting ..................1.5 1.5.3 Repair and Service ................1.5 1.5.4 Principles of Operation .................1.5 1.5.5 Default Settings ..................1.5 1.6 SUMMARY OF EQ 55 FEATURES............1.6 1.6.1 Display Screen Size................1.6 1.6.2 Display Screen Resolution ..............1.6 1.6.3 Display Screen Colors ................1.6 1.6.4 Information on the Display Screen............1.6 1.6.5 Time Marker - Minute Increments............1.6...
  • Page 10 950-7001001/Iss1.2 EQ-55 Operators Manual Page 1.2 Introduction and System Familiarization 1.6.10 Phased Range..................1.7 1.6.11 Transmit Power Reduction ..............1.7 1.6.12 Ranges ....................1.7 1.6.13 Dual VRM....................1.7 1.6.14 Other Features..................1.8 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 11: Introduction And System Familiarization

    FAMILIARIZATION 1.1 INTRODUCTION AND SYSTEM FAMILIARIZATION Welcome to SIMRAD's EQ 55 Echo sounder. The EQ 55 is a totally new echo sounder that can be used in any fishery in the world and is fully contained in just one cabinet. Several different configurations of transducers can be purchased separately for the EQ 55.

  • Page 12: Glossary Of Terms

    This section provides the user with a short, quick overview of the EQ 55 manual. 1.2.7 Safety Procedures The EQ 55 is an electrical device. For your safety and the safety of your crew and vessel we strongly advise you to read Section 1.1 - Safety Summary.

  • Page 13: Operation

    Introduction and System Familiarization Page 1.5 1.5 OPERATION If you are not familiar with the operation of the EQ 55, turn to Chapter 2 - Operating the EQ-55. 1.5.1 Maintenance Like all pieces of equipment, the EQ 55 needs to be properly maintained. Check Section 5.1 Preventive Maintenance for details.

  • Page 14: Summary Of Eq 55 Features

    950-7001001/Iss1.2 EQ-55 Operators Manual Page 1.6 Introduction and System Familiarization 1.6 SUMMARY OF EQ 55 FEATURES 1.6.1 Display Screen Size 14 inches (356 mm) diagonal (nominal) 1.6.2 Display Screen Resolution 640 (horizontal) x 480 (vertical) pixels, .29 mm dot pitch 1.6.3 Display Screen Colors...

  • Page 15: Units Of Measure

    Meters, fathoms, passi braza and feet. 1.6.8 Expansion Ranges The EQ 55 can display one of five different Expansion Ranges that are close ups of the bottom or VRM and are displayed across the lower third of the display screen.

  • Page 16: Other Features

    Introduction and System Familiarization 1.6.14 Other Features Gain, STC, White Line, Control Memory,, Brightness & Contrast Controls, Bottom Lock, AScope, Alarms, Adjustable Scroll Speed, Event Markers, Selectable Language, Optional Color Printer. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 17 Operation of the EQ-55 Page 2.1 PART 2 OPERATION OF THE EQ-55 2. OPERATION OF THE EQ 55 ..............2.3 2.1 BASIC OPERATION OF THE EQ 55 ............2.3 2.1.1 Turning the EQ 55 On................2.3 2.1.2 Joystick....................2.3 2.2 MENU SELECTIONS .................2.5 2.2.1 Main Menu ....................2.5...
  • Page 18 2.7.20 Configuraiton - STC (Sensitivity Time Control) ......2.47 2.7.21 Configuration - Depth Adjust (Depth Adjustment) ......2.48 2.7.22 Configuration - Sound Velocity............2.49 2.7.23 Configuration - Save Settings............2.50 2.7.24 Configuration - Load Settings ............2.51 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 19: Operation Of The Eq

    2.1.1 Turning the EQ 55 On. The EQ 55 is turned on by pressing the rocker switch in the lower left hand corner of the control panel. 2.1.2 Joystick The EQ 55 is controlled through menus that you access by operating a joystick located on the control panel.
  • Page 20 LEFT causes the RIGHT selects the the cursor highlight to highlighted function. move to the previous menu. Pressing the joystick DOWN causes the cursor highlight to move down the selected menu. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 21: Menu Selections

    Page 2.5 2.2 MENU SELECTIONS The EQ 55 is operated by making selections from various on-screen menus. This section explains what each menu listing means or does. To select a function, move the joystick up or down so the highlight is on the item you want, then press the joystick to the right to highlight and select the function.

  • Page 22: Low And High Frequency Menu

    The selections available in the LF and HF Settings TRANSMIT POWER Menus are described on the following pages. CONFIGURATION ↓ ↓ ↓ ↓ LF SETTINGS MANUAL RANGE MANUAL PHASE AUTO RANGE AUTO PHASE SET AUTO PHASE SET VRM Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 23: Low Or High Frequency - Manual Range

    ↓ ↓ ↓ ↓ LF SETTINGS MANUAL RANGE MANUAL PHASE AUTO RANGE AUTO PHASE SET AUTO PHASE SET VRM RANGE 2000 Ù Ú STATUS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 24: Low Or High Frequency - Manual Phase

    Once the correct range is shown in MANUAL RANGE the selection window, press the joystick to the right MANUAL PHASE to make your selection. AUTO RANGE AUTO PHASE SET AUTO PHASE SET VRM PHASE Ù Ú STATUS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 25: Low Or High Frequency - Auto Range

    Operation of the EQ-55 Page 2.9 2.2.5 Low or High Frequency - Auto Range MAIN MENU By selecting the Auto Range, the EQ 55 will LF SETTING automatically adjust the displayed range, keeping HF SETTING the display of the sea bottom in the lower half of the DISPLAY MODE screen display.

  • Page 26: Low Or High Frequency - Auto Phase

    Note: When Auto Phase is selected, Auto Range is turned ON. Turning Auto Range OFF LF SETTINGS will disable Auto Phase. MANUAL RANGE MANUAL PHASE AUTO RANGE AUTO PHASE SET AUTO PHASE SET VRM Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 27: Low Or High Frequency - Set Auto Phase

    Auto Phase is in the on position. SET MARKER GAIN TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ LF SETTINGS MANUAL RANGE MANUAL PHASE AUTO RANGE AUTO PHASE SET AUTO PHASE SET VRM RANGE Ù Ú STATUS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 28: Low Or High Frequency - Set Vrm (Variable Range Marker)

    VRM line, and the VRM depth will be shown in the CONFIGURATION STATUS window. ↓ ↓ ↓ ↓ LF SETTINGS MANUAL RANGE MANUAL PHASE AUTO RANGE AUTO PHASE SET VRM LF VRM Ù Ú STATUS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 29: Display Mode Menu

    2.3 DISPLAY MODE MENU Selecting Display Mode from the Main Menu will MAIN MENU show the possible modes for displaying the LF SETTING information the EQ 55 provides. HF SETTING DISPLAY MODE Each selection in Display Mode is described on the EXPANSION following pages.
  • Page 30 2.3.1 Display Mode - LF OR HF MAIN MENU The LF or HF selection of Display Mode dedicates LF SETTING the entire EQ 55 display screen to the display of HF SETTING data from the chosen Frequency channel. DISPLAY MODE EXPANSION The other transmitter is disabled.

  • Page 31: Display Mode - Lf Or Hf/Ascope

    ASCOPE expands the latest ping into a bar graph. DISPLAY MODE EXPANSION The other transmitter is disabled. SET MARKER GAIN TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ DISPLAY MODE LF/ASCOPE HF/ASCOPE DUAL/VERT DUAL/HORZ NAVIGATION Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 32: Display Mode - Dual/Vert (Dual Vertical)

    EXPANSION side of the display screen, and the High Frequency SET MARKER channel on the right. GAIN TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ DISPLAY MODE LF/ASCOPE HF/ASCOPE DUAL/VERT DUAL/HORZ NAVIGATION Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 33: Display Mode - Dual/Horz (Dual Horizontal)

    High EXPANSION Frequency channel on the lower portion. SET MARKER GAIN TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ DISPLAY MODE LF/ASCOPE HF/ASCOPE DUAL/VERT DUAL/HORZ NAVIGATION Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 34: Display Mode - Navigation

    (optional) sensors are the vessel's latitude, EXPANSION longitude, speed and local sea water temperature. SET MARKER GAIN TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ DISPLAY MODE LF/ASCOPE HF/ASCOPE DUAL/VERT DUAL/HORZ NAVIGATION Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 35: Expansion Menu

    DISPLAY MODE EXPANSION Each selection in the Expansion Menu is described SET MARKER on the following pages. GAIN TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ EXPANSION BOTTOM EXP VRM EXP EXP RANGE Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 36: Expansion - Bottom Exp. (Bottom Expansion)

    Bottom Expansion requires selection of an DISPLAY MODE Expansion Range. See page 2 - 18 for Expansion EXPANSION Range. SET MARKER GAIN TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ EXPANSION BOTTOM EXP VRM EXP EXP RANGE Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 37: Expansion - Vrm Exp (Vrm Expansion)

    Subsequent selection of VRM Expansion will allows TRANSMIT POWER a close-up view of the water column around the CONFIGURATION VRM. ↓ ↓ ↓ ↓ EXPANSION BOTTOM EXP VRM EXP EXP RANGE Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 38: Expansion - Exp Range (Expansion Range)

    HF SETTING the VRM Expansion window. DISPLAY MODE EXPANSION SET MARKER GAIN TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ EXPANSION BOTTOM EXP VRM EXP OFF EXP RANGE EXP RANGE Ù Ú STATUS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 39: Set Marker Menu

    Selecting the Set Marker function from the Main MAIN MENU Menu, draws vertical marker at a selected location LF SETTINGS on the display screen. HF SETTINGS DISPLAY MODE EXPANSION SET MARKER GAIN TRANSMIT POWER CONFIGURATION Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 40: Gain Menu

    2.5 GAIN MENU MAIN MENU Selecting the Gain function from the Main Menu LF SETTING allows you to adjust the sensitivity of the EQ 55 HF SETTING receivers. See page 2 - 21 for the description of the DISPLAY MODE Gain function.

  • Page 41: Gain - Lf And Hf Gain

    Transmit TRANSMIT POWER Power settings, transducer election and placement, CONFIGURATION water conditions and target strength. ↓ ↓ ↓ ↓ GAIN LF GAIN HF GAIN LF GAIN Ù Ú STATUS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 42: Transmit Power Menu

    TRANSMIT POWER OFF: No transmission CONFIGURATION Generally speaking, High Power is most useful in ↓ ↓ ↓ ↓ deeper water and Low Power is more useful in very shallow water. POWER HIGH Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 43: Configuration Menu

    TRANSMIT POWER CONFIGURATION ↓ ↓ ↓ ↓ CONFIGURATION UNITS BACK COLOR LANGUAGE EXT I/F TEST COLOR THRESHOLD SCROLL SPEED ALARMS WHITE LINE FILTER DEPTH ADJUSTMENT SOUND VELOCITY SAVE SETTINGS LOAD SETTINGS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 44: Configuration- Units Of Measure

    Operation of the EQ-55 2.7.1 Configuration- Units of Measure The measurement unit used in the depth MAIN MENU measurement and display of the EQ 55 can be meters, LF SETTING feet, fathoms or passi braza. Press the joystick to the HF SETTING right to make a selection.

  • Page 45: Configuration - Background Color

    Page 2.29 2.7.2 Configuration - Background Color Either Blue or Black can be chosen for the MAIN MENU background (no target) color on the EQ 55 display LF SETTING screen. Black is especially useful for operation at HF SETTING night.

  • Page 46: Configuration - Language

    BACK COLOR FRENCH → → → → LANGUAGE GERMAN EXT I/F ICELANDIC TEST NORWEGIAN SPANISH COLOR THRESHOLD SCROLL SPEED ALARMS WHITE LINE OFF FILTER DEPTH ADJUSTMENT SOUND VELOCITY SAVE SETTINGS LOAD SETTINGS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 47: Configuration - Ext I/F (External Interface) Sub-Menu

    Selection of the EXT I/F (External Interface) Menu MAIN MENU allows you to control the NMEA 0183 interface ports (on the rear panel of the EQ 55), to control the LF SETTING (optional) printer and to turn the speed and HF SETTING temperature interfaces ON or OFF.

  • Page 48: Configuration - Ext I/F - Nmea 0183

    HF SETTING communicate certain data with other devices that may be on your vessel. DISPLAY MODE EXPANSION The EQ 55 sends out signals on the NMEA 0183 SET MARKER interface giving the water depth it is measuring. GAIN TRANSMIT POWER...

  • Page 49: Configuration - Ext I/F - Printer

    2.7.6 Configuration - EXT I/F - Printer The EQ 55 Printer interface (on the rear panel) MAIN MENU allows data from the EQ 55 to be recorded on the LF SETTING (optional) EQ 55 printer. You may select which HF SETTING...

  • Page 50: Configuration - Ext I/F - Ship's Speed

    Page 2.34 Operation of the EQ-55 2.7.7 Configuration - EXT I/F - Ship's Speed The use of an (optional) speed sensor allows the MAIN MENU vessel speed to be shown on the EQ 55 LF SETTING screen. HF SETTING DISPLAY MODE...

  • Page 51: Configuration - Ext I/F - Water Temperature

    2.7.8 Configuration - EXT I/F - Water Temperature MAIN MENU LF SETTING The use of an (optional) temperature sensor allows HF SETTING the EQ 55 to display the sea water temperature. DISPLAY MODE EXPANSION The temperature interface is turned ON or OFF by SET MARKER...

  • Page 52: Configuration - Ext I/F - Trigger

    TEST TRIGGER STATUS COLOR THRESHOLD LF VRM = SCROLL SPEED HF VRM = TEMP 15 C ALARMS 00.0 m WHITE LINE OFF FILTER DEPTH ADJUSTMENT SOUND VELOCITY SAVE SETTINGS LOAD SETTINGS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 53: Configuration - Test Pattern

    MAIN MENU LF SETTING When the Test Pattern is turned ON it injects a test HF SETTING signal into the EQ 55 receiver channel input. This DISPLAY MODE allows the user or a technician to evaluate the gain EXPANSION controls and display.

  • Page 54: Configuration - Tvg (Time Varying Gain)

    Operation of the EQ-55 2.7.11 Configuration - TVG (Time Varying Gain) The Time Varying Gain (TVG) is a control that allows the EQ 55 to make corrections for most of the losses MAIN MENU and absorption that occurs as sound energy passes LF SETTING through sea water.

  • Page 55: Configuration - Color Threshold

    Operation of the EQ-55 Page 2.39 2.7.12 Configuration - Color Threshold MAIN MENU LF SETTING On the EQ 55 display screen, smaller and weaker HF SETTING targets are shown in blue or green colors. These DISPLAY MODE weaker targets may be removed from the display...

  • Page 56: Configuration - Scroll Speed

    2.7.13 Configuration - Scroll Speed Selecting the Scroll Speed control allows the user to decide how much "history" is shown on the MAIN MENU EQ 55 display screen. LF SETTING HF SETTING Note: At the top of the display screen is the blue "One DISPLAY MODE Minute Marker."...

  • Page 57: Configuration - Alarms Sub-Menu

    Page 2.41 2.7.14 Configuration - Alarms Sub-menu MAIN MENU LF SETTING The EQ 55 includes alarms that can be used to notify HF SETTING the user if the bottom tracking indicates that the DISPLAY MODE bottom is shallower than a Minimum Depth or deeper EXPANSION than a Maximum Depth.

  • Page 58: Configuration - Alarms - Set Min Depth (Set Minimum Depth)

    LANGUAGE MIN ALARM EXT I/F MAX ALARM TEST DEPTH 2000 Ù COLOR THRESHOLD SCROLL SPEED 2000 Ú ALARMS WHITE LINE OFF FILTER STATUS DEPTH ADJUSTMENT SOUND VELOCITY SAVE SETTINGS LOAD SETTINGS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 59: Configuration - Alarms - Set Max Depth (Set Maximum Depth)

    LANGUAGE MIN ALARM EXT I/F MAX ALARM TEST DEPTH 2000 Ù COLOR THRESHOLD SCROLL SPEED 2000 Ú ALARMS WHITE LINE OFF FILTER STATUS DEPTH ADJUSTMENT SOUND VELOCITY SAVE SETTINGS LOAD SETTINGS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 60: Configuration - Alarms - Min And Max Alarms On/Off

    SET MAX DEPTH → → → → LANGUAGE MIN ALARM EXT I/F MAX ALARM TEST COLOR THRESHOLD SCROLL SPEED ALARMS WHITE LINE OFF FILTER DEPTH ADJUSTMENT SOUND VELOCITY SAVE SETTINGS LOAD SETTINGS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 61: Configuration - White Line

    LF SETTING HF SETTING White Line is a function that, when turned ON, places DISPLAY MODE a white line just below what the EQ 55 evaluates as EXPANSION the bottom." The purpose of the White Line function SET MARKER is to low the user to see more clearly those targets...

  • Page 62: Configuration - Filter

    950-7001001/Iss 1.2 EQ-55 Operators Manual Page 2.46 Operation of the EQ-55 2.7.19 Configuration - Filter The EQ 55 includes a software filter that can MAIN MENU automatically reduce noise and interference on the LF SETTING display screen. HF SETTING DISPLAY MODE...

  • Page 63: Configuraiton - Stc (Sensitivity Time Control)

    DISPLAY MODE are close to the surface. The effect is to reduce the EXPANSION EQ 55 receiver sensitivity in the top few meters of SET MARKER water close to the transducer. GAIN...

  • Page 64: Configuration - Depth Adjust (Depth Adjustment)

    LANGUAGE EXT I/F TEST COLOR THRESHOLD SCROLL SPEED ALARMS THRESHOLD WHITE LINE FILTER Ù → → → → DEPTH ADJUSTMENT Ú SOUND VELOCITY SAVE SETTINGS LOAD SETTINGS STATUS Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 65: Configuration - Sound Velocity

    MAIN MENU LF SETTING Since the speed of sound in sea water can vary HF SETTING significantly from place to place, the EQ 55 offers an DISPLAY MODE adjustment to this value. Changing the EQ 55 Sound EXPANSION Velocity Setting will change the depth indication.

  • Page 66: Configuration - Save Settings

    EXPANSION SET MARKER Four completely different "groups" of adjustments can GAIN be saved separately. This allows the EQ 55 to be TRANSMIT POWER configured, for example, for a particular fishery or a CONFIGURATION particular region. These settings can then be "saved"...

  • Page 67: Configuration - Load Settings

    "Save Settings" function, see previous page. EXPANSION SET MARKER Additionally, there is a DEFAULT selection, which GAIN allows the user to load the original factory settings into TRANSMIT POWER the EQ 55. CONFIGURATION ↓ ↓ ↓ ↓ CONFIGURATION LOAD NAME UNITS GROUP 1...
  • Page 68 950-7001001/Iss 1.2 EQ-55 Operators Manual Page 2.52 Operation of the EQ-55 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 69 3.1.2 Processor ....................3.3 3.1.3 Receiver/Transmitter ................3.3 3.1.4 Transducer(s) ..................3.4 3.2 HOW THE EQ-55 WORKS .................3.4 3.3 TRANSDUCER BEAMWIDTH ..............3.5 3.4 CHOICE OF FREQUENCY ................3.8 3.5 EFFECTS OF THE VESSEL'S SPEED ............3.8 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 70 950-70017001/Iss 1.2 EQ-55 Operators Manual Page 3.2 Principles of Operation of an Echo Sounder Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 71: Principles Of Operation Of An Echo Sounder

    3.1 PARTS OF AN ECHO SOUNDER An echo sounder is composed of the display screen, processor, and receiver/transmitter unit which in case of the EQ 55, are housed in one unit which should be installed in an easily accessible location aboard ship.

  • Page 72: Transducer

    The voltage is thus converted to mechanical vibrations (sound waves) which are then transmitted down through the water. See figure 3.1 Figure 3.1 Transmitted “ping” from the receiver/transmitter Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 73: Transducer Beamwidth

    Similar to the way a flashlight focuses light, most of the sound from your transducer is focused downwards with a smaller amount going out to the sides. The amount of focusing of the sound beam is expressed as a "beamwidth". Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 74 (see figure 3.5). Since a narrow beamwidth transducer focuses the sound better, it is usually capable of seeing deeper targets than the wider beamwidth transducer. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 75 The choice of transducer beamwidth is always a compromise. See 3.6 Figure 3.6 Effects of a vessel rolling with a narrow beam transducer. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 76: Choice Of Frequency

    When the vessel is at rest, the echo traces will appear stretched out and flattened. As the vessel's speed becomes greater, the echo traces will become shorter and more arched. The reason for this change in Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 77 A low vessel speed will provide the most accurate information of where fish are located. See figure 3.8 Figure 3.8 - A representation of the effects of vessel speed on the displayed echoes. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 78 950-70017001/Iss 1.2 EQ-55 Operators Manual Page 3.10 Principles of Operation of an Echo Sounder Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 79: Installation Instructions

    4.3.7 Summing up on Transducer Location ..........4.13 4.3.8 Thru-hull Installation .................4.14 4.3.9 EQ 55 Standard Transducer Mounted to Wood or Fiberglass Hull ..4.15 4.3.10 EQ 55 Standard Transducer Mounted to Wood or Fiberglass Hull.4.17 4.3.11 Adapter plate for EQ 55 Standard Transducer Mounted to a Steel Hull.......................4.18...
  • Page 80 4.5.11 Speed Temperature Connectors ............4.30 4.5.12 NMEA Connectors ................4.31 4.6 MOUNTING BRACKET ASSEMBLY DRAWING........4.32 4.7 OUTLINE & INSTALLATION DRAWING - EQ55 ECHO SOUNDER ..4.33 4.8 OUTLINE & INSTALLATION DRAWING - EQ55SA ECHO SOUNDER4.34 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 81: Installation Instructions For The Eq 55

    The EQ 55's transmitter is designed to match the following transducers: (see Section 4.1.3 on the next page).

  • Page 82: Transducers And Speed/Temperature Sensors

    12° x 20° 193600 50 kHz Resin 10° x 17° KSV-065414 200 kHz Resin 7° Speed and Temperature Sensor Reference No. Description 303-105606 Speed and temperature sensor (combined in bronze thru-hull case) Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 83: Eq 55 High Performance 200 Khz Transducer

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.5 4.2.1 EQ 55 High Performance 200 kHz Transducer Reference number: KVS-065414 (200-7-F) EQ 55 High Performance 200 kHz Transducer Wire Color Code Transducer: Black Transducer: Blue Shield: Bare Kongsberg Simrad Mesotech Ltd.

  • Page 84: Eq 55 Standard Performance Transducers

    950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.6 Installation Instructions for the EQ-55 4.2.2 EQ 55 Standard Performance Transducers Reference Numbers: 312-105452, AM-38 EQ 55 Standard Performance 38 kHz Transducer Wire Color Code Transducer: Black/White Transducer: Yellow Shield: Bare Temperature: Brown...

  • Page 85: Eq 55 Standard Performance Transducers, 50 Khz And 50/200 Khz.4.7

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.7 4.2.3 EQ 55 Standard Performance Transducers, 50 kHz and 50/200 kHz Reference Numbers: 312-105451, AM-50 312-105453, AM-50/200 EQ 55 Standard Performance EQ 55 Standard Performance 50/200 kHz Transducer Wire Color...

  • Page 86: Eq 55 Standard Performance Transducers, 200 Khz

    950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.8 Installation Instructions for the EQ-55 4.2.4 EQ 55 Standard Performance Transducers, 200 kHz Reference Number: 312-105450, AM-200 EQ 55 Standard Performance 200 kHz Transducer Wire Color Code Transducer: Black Transducer: Blue Shield: Bare...

  • Page 87: Eq 55 High Performance Transducers, 50 And 38 Khz

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.9 4.2.5 EQ 55 High Performance Transducers, 50 and 38 kHz Reference Numbers: 193600 191600 EQ 55 High Performance 38 kHz Transducer Wire Color Code Transducer: Black Transducer: Blue...

  • Page 88: Speed/Temperature Sensor

    Hull Thickness :1/4” to 2 1/8” (6.35 to 54 mm) Required removal headroom :4” (102 mm) minimum Note: Use only mineral spirits based anti-fouling paints. EQ 55 Speed/Temperature Sensor Wiring Color Codes Positive Supply Voltage: Sensor Output Signal: Yellow Ground (Shield):...

  • Page 89: Determining The Position For The Transducer

    Figure 4.1 sketches the boundary layer of a vessel moving through the water. Furthermore, air bubbles in the sea water are pressed down below the hull and Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 90: Propeller Noise

    The cavitation starts most easily when the water flows in the same direction as the propeller blade, and that is to some degree the case at that side of the keel where the propeller blades move downwards. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 91: Vessel Heave

    Often the foremost part of the bulb is preferable as shown in Figure 4.3. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 92: Thru-Hull Installation

    Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 93: Eq 55 Standard Transducer Mounted To Wood Or Fiberglass Hull

    Steel stuffing tubes are available for use on steel vessels. Note that bronze stuffing tubes should not be used on aluminum hulls. 4.3.9 EQ 55 Standard Transducer Mounted to Wood or Fiberglass Hull Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 94 950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.16 Installation Instructions for the EQ-55 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 95: Eq 55 Standard Transducer Mounted To Wood Or Fiberglass Hull.4.17

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.17 4.3.10 EQ 55 Standard Transducer Mounted to Wood or Fiberglass Hull. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 96: Adapter Plate For Eq 55 Standard Transducer Mounted To A Steel Hull

    950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.18 Installation Instructions for the EQ-55 4.3.11 Adapter plate for EQ 55 Standard Transducer Mounted to a Steel Hull. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 97: Eq 55 Standard Transducer Mounted To A Steel Hull

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.19 4.3.12 EQ 55 Standard Transducer Mounted to a Steel Hull. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 98 950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.20 Installation Instructions for the EQ-55 4.3.13 EQ 55 Standard Transducer Mounted to a Steel Hull. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 99: Steel Stuffing Tube For Eq 55 Standard Transducer

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.21 4.3.14 Steel Stuffing Tube for EQ 55 Standard Transducer. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 100: Display Unit Installation

    (see Figure 4.14) or the EQ 55 may be mounted to the ceiling The EQ 55 may also be recess mounted into a control console and rack mounted. Be sure that there is no tension applied to the cabling when the installation is complete.

  • Page 101: Eq 55 Dimensions

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.23 4.4.1 EQ 55 Dimensions Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 102: Eq 55 Mounting Bracket Hole Pattern (Option)

    950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.24 Installation Instructions for the EQ-55 4.4.2 EQ 55 Mounting Bracket Hole Pattern (option) Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 103: Electrical Connections

    Refer to Section 4.5.8 for the location of rear panel receptacles and fuse holder. WARNING: USING A FUSE WHICH IS NOT SPECIFIED FOR YOUR EQUIPMENT CAN CAUSE IT TO BLOW THE INSTANT THE EQ 55 HAS BEEN SWITCHED ON OR IT WILL NOT PROTECT THE EQUIPMENT IN THE EVENT OF TROUBLE.

  • Page 104: Cabinet Grounding

    (max. recommended length 4 m (12 feet)). The printer cable is the same type as that used with many personal computers. Both the EQ 55 and the printer should be OFF when the cables are connected. Kongsberg Simrad Mesotech Ltd.

  • Page 105: Location Of Fuse And Rear Panel Receptacles

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.27 4.5.8 Location of Fuse and Rear Panel Receptacles Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 106: Transducer Connectors ( European)

    950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.28 Installation Instructions for the EQ-55 4.5.9 Transducer Connectors ( European) Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 107: Transducer Connectors ( North American )

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.29 4.5.10 Transducer Connectors ( North American ) Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 108: Speed Temperature Connectors

    950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.30 Installation Instructions for the EQ-55 4.5.11 Speed Temperature Connectors Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 109: Nmea Connectors

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.31 4.5.12 NMEA Connectors Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 110: Mounting Bracket Assembly Drawing

    950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.32 Installation Instructions for the EQ-55 4.6 MOUNTING BRACKET ASSEMBLY DRAWING Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 111: Outline & Installation Drawing - Eq55 Echo Sounder

    EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.33 4.7 OUTLINE & INSTALLATION DRAWING - EQ55 ECHO SOUNDER Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 112: Outline & Installation Drawing - Eq55Sa Echo Sounder4.34

    950-70017001/Iss 1.2 EQ-55 Operators Manual Page 4.34 Installation Instructions for the EQ-55 4.8 OUTLINE & INSTALLATION DRAWING - EQ55SA ECHO SOUNDER Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 113 EQ-55 Operators Manual 950-70017001/Iss 1.2 Installation Instructions for the EQ-55 Page 4.35 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 114 5.1 PREVENTIVE MAINTENANCE..............5.3 5.1.1 Surface Cleaning ...................5.3 5.1.2 Electrical Connections ................5.3 5.1.3 Mounting Bracket .................5.3 5.1.4 Transducer ....................5.3 5.2 TROUBLESHOOTING THE EQ 55 ............5.4 5.2.1 Power Requirements................5.4 5.2.2 Normal Start-up Responses..............5.4 5.2.3 Troubleshooting Guide................5.5 5.2.4 Troubleshooting Procedure ..............5.8 5.3 REPAIR AND SERVICE ................5.8 5.4 SPARE PARTS ....................5.8...
  • Page 115 950-7001001/Iss 1.2 EQ-55 Operators Manual Page 5.2 Maintenance, Troubleshooting, Repair and Spare Parts Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 116: Maintenance, Troubleshooting, Repair And Spare Parts5.3

    MAINTENANCE, TROUBLESHOOTING, REPAIR AND SPARE PARTS The EQ 55 is a sturdy, well-built piece of electronic equipment. In this chapter you will find information on how to keep it in good working condition and what to do if a problem should arise.

  • Page 117: Troubleshooting The Eq

    Power consumption is approximately 135 watts. 5.2.2 Normal Start-up Responses When the EQ 55 is turned on, the normal power up response is for the unit to default to the Group 1 control settings. As the unit is warming up, it is often possible to hear the high voltage "crackling"...

  • Page 118: Troubleshooting Guide

    (Red, Green, Blue) Picture, but no bottom or fish targets. Check transducer connections. Ensure connections are clean and tight and that pinouts are correct. Ensure that correct transducers are being used. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 119 Raise Gain Setting. Maximum setting is Check TVG Setting. Set TVG to 40log ("Fish"). Unit comes on, but then shuts off. Check incoming power to EQ 55. Provide proper voltage. Is fuse intact? Replace with proper fuse. Are Power Supply components Isolate Power Supply from loads.
  • Page 120 Correct wiring: EQ 55 input is labeled EQ 55 terminal strip. "A" & "B". A is signal, B is return (input is floating and optically isolated) EQ 55 output (labeled "Tx" & "Gnd") is ±12 Vdc. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 121: Troubleshooting Procedure

    5.3 REPAIR AND SERVICE The EQ 55 is sealed and does not contain any user serviceable parts. Opening of this unit will void its warranty. Touching electrical parts inside may cause bodily harm or death. If the EQ 55 requires servicing or repair call your authorized SIMRAD dealer.
  • Page 122 EQ-55 Operators Manual 950-7001001/Iss 1.2 Maintenance, Troubleshooting, Repair and Spare Parts Page 5.9 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 123 6.1.1 Technical Specifications (General) ............6.3 6.1.2 Display....................6.4 6.1.3 Accessory Output ..................6.4 6.1.4 Accessory Input ..................6.4 6.1.5 Voltages ....................6.5 6.1.6 Console ....................6.5 6.1.7 Environmental Requirements ..............6.5 6.1.8 Options ....................6.5 6.1.9 Transducers...................6.6 6.1.10 Sensors ....................6.6 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 124 950-70017001/Iss 1.2 EQ-55 Operators Manual Page 6.2 Technical Information Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC Canada...

  • Page 125: Technical Information

    Page 6.3 TECHNICAL INFORMATION 6.1 TECHNICAL INFORMATION For technical drawings, see Chapter 4 - Installation. 6.1.1 Technical Specifications (General) General Frequency Pairs (The EQ 55 is ordered with one of these 50/200 kHz pairs.) 38/200 kHz 38/50 kHz Output Power...

  • Page 126: Display

    Adjustable, 100 to 25,000 p/n m Temperature NTC thermistor (Airmar Std.) NMEA 0183 Input GLL (latitude and longitude) AUX 9 Pin D-Type Pore Ext Trig Input Ext Sinc Output RS232 Pin 1,5,6 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC Canada...

  • Page 127: Voltages

    -20° to 65° (-5° to 150° F) Operating Humidity 95% non-condensing 6.1.8 Options Options Color Printer (Hewlett Packard PaintJet only) 8 colors, requires 110 VAC Rack Mount Bracket Kit For Console Mounting Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC Canada...

  • Page 128: Transducers

    High Performance Transducers (without a temperature transducer) Frequency Beamwidth Housing 38 kHz 11° x 22° Resin 50 kHz 8°x 18° Resin 200 kHz 7° Resin 6.1.10 Sensors Sensors Speed/Temperature Sensor Combined in a bronze thru-hull. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC Canada...

  • Page 129: Part 7 ......................................................................................... Servicing The Eq

    PART 7 SERVICING THE EQ-55 7. SERVICING THE EQ 55................7.3 7.1 SERVICE INSTRUCTIONS................7.3 7.1.1 Removing the EQ 55 from its Installation Site........7.3 7.1.2 Transporting the EQ 55 ................7.3 7.2 EQ 55 DISASSEMBLY 3-D DIAGRAM.............7.4 7.3 SERVICING THE EQ 55 AIR FILTER............7.5 7.4 EQ 55 DISASSEMBLY INSTRUCTIONS ..........7.5...

  • Page 130: Servicing The

    950-7001001/Iss 1.2 EQ-55 Operators Manual Page 7.2 Servicing the EQ-55 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 131: Servicing The Eq 55

    7.1 SERVICE INSTRUCTIONS 7.1.1 Removing the EQ 55 from its Installation Site Use care in removing the EQ 55 from its installed location. Remember that the cabinet weighs approximately 68 lb. (31 kg). Label and disconnect the cables from the EQ 55.

  • Page 132: Eq 55 Disassembly 3-D Diagram

    950-7001001/Iss 1.2 EQ-55 Operators Manual Page 7.4 Servicing the EQ-55 7.2 EQ 55 DISASSEMBLY 3-D DIAGRAM. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 133: Servicing The Eq 55 Air Filter

    EQ 55, and exhaust through the vent slots in the bottom of the case. To clean the EQ 55 air filter, remove power from the unit. With the rear of the EQ 55 facing you, remove the fan shroud. You can now see the filter and the filter frame which holds it in place.

  • Page 134: Replacing The Transceiver Pcb Assembly

    PCB. Use care that the connectors and PCB are not damaged in the process of disconnecting. Remove the 9 nuts that are holding down this PCB board. The PCB may be removed from the EQ 55 drawer. 7.4.4 Replacing the Transceiver PCB Assembly.

  • Page 135: Removing The Eprom

    EPROM closest to the rear of the EQ 55. Carefully line up the pins with the socket holes. Gently press the EPROM into the socket.

  • Page 136: Replacing The Power Supply Pcb Assembly

    7.6.4 Removing the Display Monitor Assembly. Remove the entire EQ-55 form it's mounting location. Place the EQ 55 on a clean surface which will not mar the finish. A static dissipative surface, properly grounded, and static-dissipative practices for personnel are recommended to minimize damage to the unit from static electricity.

  • Page 137: Eq 55 Cpu Circuit Board Jumper Configurations

    EQ-55 Operators Manual 950-7001001/Iss 1.2 Introduction and System Familiarization Page 7.9 7.7 EQ 55 CPU CIRCUIT BOARD JUMPER CONFIGURATIONS Jumper Function Configuration RESET EQ 55 Open (closing jumper will force /RESET) Speed Input (Open Collector) Jumper across pins 1 to 2...
  • Page 138 LK8 jumped, frequency of transceiver. LK10 LK9 open, LK10 jumped 38/200 kHz = LK7 open, LK8 jumped, LK9 jumped, LK10 open 50/200 kHz = LK7 jumped, LK8 open, LK9 open, LK10 jumped Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 139 EQ-55 Operators Manual 950-70017001/Iss 1.2 Electrical Drawings Page 8.1 PART 8 ELECTRICAL DRAWINGS 8. ELECTRICAL DRAWINGS ................8.3 8.1 LIST OF DRAWINGS..................8.3 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 140 950-70017001/Iss 1.2 EQ-55 Operators Manual Page 8.2 Electrical Drawings Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 141 8.1 LIST OF DRAWINGS The following drawings are included with this manual: EQ-50 Power Supply Assembly Drawing--------------------- 403-17011000 (Iss. 1.1) EQ 55 Power Supply------------------------------------------------ 403-17018800 (Iss. 1.1) EQ-55 Wiring Diagram -------------------------------------------- 950-70001003 (Iss. 1.1) CRT Assembly (6 pages)-----------------------------------------------110026-0001 (Iss. A) Kongsberg Simrad Mesotech Ltd.
  • Page 142 950-70017001/Iss 1.2 EQ-55 Operators Manual Page 8.4 Electrical Drawings Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 143 EQ-55 Operators Manual 950-7001001/Iss 1.2 Appendix A Page A.1 PART A DEFAULT SETTINGS A. APPENDIX A.......................A.3 A.1 DEFAULT SETTINGS..................A.3 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 144 950-7001001/Iss 1.2 EQ-55 Operators Manual Page A.2 Appendix A Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 145 EQ-55 Operators Manual 950-7001001/Iss 1.2 Appendix A Page A.3 A. APPENDIX A A.1 DEFAULT SETTINGS The EQ 55 left the factory with the settings below. EQ 55 Factory Default Settings Display Mode Low frequency Unit of Measure Meters Range Phased Range...
  • Page 146 950-7001001/Iss 1.2 EQ-55 Operators Manual Page A.4 Appendix A EQ 55 Factory Default Settings Sound Velocity 1462 m/s White Line Language English Test Mode To LOAD a Group of Settings: If you wish to load a group of settings: From the Main Menu, select Configuration, then From the Configuration Menu, select Load Settings, and From the Load Setting Menu, select the setting group you wish to load.
  • Page 147 EQ-55 Operators Manual 950-7001001/Iss 1.2 Appendix B Glossary Page B.1 PART B GLOSSARY B. APPENDIX B.......................B.3 B.1 GLOSSARY....................B.3 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 148 950-7001001/Iss 1.2 EQ-55 Operators Manual Page B.2 Appendix B Glossary Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 149 Alarms can be set to sound a "beep" if the echo sounder detects a target above (shallower than) a minimum alarm depth or below (deeper than) a maximum alarm depth. The EQ 55 allows you to set the alarm depths and to enable or disable both the minimum and maximum depth alarms. AUTORANGE Selecting Autorange will cause the EQ 55 to change the basic range setting(s) to keep the displayed bottom in the lower half of the display.
  • Page 150 Gain is another way of saying "sensitivity", or possibly "volume". Increasing the gain setting of the EQ 55 will allow you to see smaller and deeper targets. If the gain is set too high, however, you will begin to see "noise" and unwanted targets.
  • Page 151 The connection between two pieces of equipment. JOYSTICK The Joystick is the control lever mounted on the front of the EQ 55. All operator control of the system is performed by manipulating the joystick. Low Frequency. The EQ 55 is provided with a low frequency channel to allow the user to see deeper targets than would normally be detectable with the high frequency channel.
  • Page 152 Serial interface describes the connections used between two or more pieces of computer equipment. SPEED INTERFACE The speed interface allows the user to connect the EQ 55 to a paddle wheel type of vessel speed sensor. The vessel speed can then be displayed on the EQ 55 display screen.
  • Page 153 Transducers are most often made from ceramic elements carefully built into a robust housing. The ceramic elements change shape when a voltage is placed across them (when the EQ 55 transmits a signal), and they also generate a voltage when they encounter sound waves (as when the EQ 55 is receiving an echo).
  • Page 154 950-7001001/Iss 1.2 EQ-55 Operators Manual Page B.8 Appendix B Glossary Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

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