Furuno CSH-83 Operator's Manual
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Furuno CSH-83 Operator's Manual

Furuno CSH-83 Operator's Manual

Color scanning sonar
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COLOR SCANNING SONAR
CSH-83/84
MODEL

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Summary of Contents for Furuno CSH-83

  • Page 1 COLOR SCANNING SONAR CSH-83/84 MODEL...
  • Page 2 *00080806600* *00080806600* *00080806600* *00080806600* ( ( DAMI DAMI ) ) CSH-83/84 CSH-83/84 * 0 0 0 8 0 8 0 6 6 0 0 * * 0 0 0 8 0 8 0 6 6 0 0 * *OME13090F00* *OME13090F00*...
  • Page 3 Do not operate the equipment with wet Continued use of the equipment can cause hands. fire or electrical shock. Contact a FURUNO agent for service. Electrical shock can result. Do not disassemble or modify the equipment. Fire, electrical shock or serious injury can result.
  • Page 4 10 years. Replace it when the picture be- comes difficult to see, to protect vision. A warning label is attached to the equip- ment. Do not remove the label. If the label becomes soiled or illegible, contact a FURUNO agent or dealer.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS FOREWORD A Word to CSH-83/84 Owners ....................vii Features ........................... vii System Configuration ......................viii CONTROL DESCRIPTION Control Layout on Display Unit and Remote Control Box ...........1-1 Main Panel ..........................1-2 Sub Panel 1 ..........................1-4 Sub Panel 2 (data setting window) ..................1-5 Remote Control Box ......................1-8...
  • Page 6 FUNCTION KEYS Programming the Function Keys ...................6-1 Replaying a Function Key ..................... 6-2 Function Key Fine Tuning ..................... 6-2 Saving Function Key Settings to a Memory Card ..............6-3 Replaying Function Key Settings from a Memory Card ............6-3 ADVANCED LEVEL OPERATION Finding Fish School Center ....................7-1 Tracking a Fish School (target lock) ..................
  • Page 7 WARNINGS Overvoltage Warning ......................12-1 Unretracted Transducer Warning ..................12-1 SELF TESTS Opening the Self Test Menu ....................13-1 Self Test Description ......................13-2 Interface Unit CS-120A Self Test ..................13-5 INPUT DATA SELECTION Selection of Data at Interface Unit CS-120A ..............14-1 Setting Distances Between Net Sonde Transmitters ............14-2 MAINTENANCE Display Unit Maintenance ....................15-1 Hull Unit Maintenance ......................15-2...
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  • Page 9: Foreword

    FOREWORD A Word to CSH-83/84 Owners Congratulations on your choice of the FURUNO CSH-83/84 Color Scanning Sonar. We are confident you will see why the FURUNO name has become synonymous with quality and reliability. For over 40 years FURUNO Electric Company has enjoyed an enviable reputation for qual- ity marine electronics equipment.

  • Page 10: System Configuration

    System Configuration STANDARD OPTION REMOTE DISPLAY * SUB DISPLAY * REMOTE CONTROL BOX only CSH-106 CSH-236 : CSH-83 CSH-116 DISPLAY UNIT CSH-230 (CSH-83) CSH-2400 (CSH-84) SHIP’S MAINS 100 VAC, 1 , SHIP’S MAINS 50/60 Hz 100 VAC, 1 , 50/60 Hz...

  • Page 11: Control Description

    CONTROL DESCRIPTION Control Layout on Display Unit and Remote Control Box POWER TRANSDUCER SUB PANEL 1 NORM HIST RECALL MEMO MAIN PANEL RANGE GAIN TARGET VERT AUTO SCAN TILT SLICE WIDTH SHOOT TILT SCAN DEPTH TARGET COURSE LOCK CONT BRILL AUDIO EVENT1 EVENT2...

  • Page 12: Main Panel

    Main Panel POWER TRANSDUCER NORM HIST RECALL MEMO RANGE GAIN VERT AUTO TARGET SCAN TILT SLICE WIDTH SHOOT TILT SCAN DEPTH TARGET COURSE LOCK CONT BRILL AUDIO EVENT1 EVENT2 ESTI- ESTI- MATE1 MATE2 OFF- FISH CENT Figure 1-2 Main panel Main panel control description .
  • Page 13 t c i t s i . e r i t i . y t c i t i t l i t s l i t . t s ' p i t s i . f f ) . r .

  • Page 14: Sub Panel 1

    Sub Panel 1 POWER TRANSDUCER MENU HELP CARD COLOR REPLAY REPLAY NORM HIST MEMO RECALL Figure 1-3 Sub panel 1 Sub panel 1 control description • i t a . e r • i t a i t a e t i t s - i t t .

  • Page 15: Sub Panel 2 (Data Setting Window)

    Sub Panel 2 (data setting window) This example shows settings of TVG and TX. ITEM (TVG•TX selected) TVG•TX CURRENT SETTINGS for item selected (TVG•TX) SIGNAL DELETE MK NEAR MEDIUM CYCLE OUTPUT SONR•BEAM AUTO ALM•AUDIO OPER P-SET – – – – –...
  • Page 16 – 0 c i t – 0 4 – i t a 4 – i t t 3 – . s r 4 – . t n i t t . e r – 0 i t i . y t –...
  • Page 17 1 " f " , r a 2 – 2 " f " . r a s t f " " 1 2 – i t a B • l a t – 0 , r e c i t "...

  • Page 18: Remote Control Box

    Remote Control Box Each press displays water DISP SELECT temperature or depth at screen DATA elects which display unit to center for about five seconds. ontrol in multiple display unit stallation. Turns on transmitter. ises/lowers the transducer. : Raises transducer. : Mid protrusion EVENT TGT LOCK...

  • Page 19: Operational Overview

    OPERATIONAL OVERVIEW Turning the Power On/Off Turning the power on Press the ON switch on the main panel. The lamp above the switch should light. If it doesn’t press the TX switch on sub panel 1. Turning the power off Retract the transducer with the c switch and then press the OFF switch on the main panel.

  • Page 20: Selecting A Display Mode

    Selecting a Display Mode The CSH-83/84 provides three display modes: normal sonar pic- ture, echo sounder(E/S) combination, and history display com- bination. Those modes may be selected with the NORM, E/S and HIST keys. Table 2-1 Display mode description Mode Description The sonar picture appears over the entire screen.

  • Page 21: Selecting A Display Range

    Selecting a Display Range Operate the RANGE control to select a display range. The range selected appears at the top of the screen. Setting the Tilt Angle The tilt angle shows the direction to which the sound wave is emitted. When the sound wave is emitted horizontally, the tilt angle is said to be zero degrees and when emitted vertically, 90 degrees.
  • Page 22 How to discriminate fish echoes from the seabed The figure below illustrates how two fish schools a and b are displayed on the screen using three different tilt angles. Case 1: Tilt angle 30 to 40 degrees. Fish school is obscured by the seabed.
  • Page 23 Tilt angle for surface fish Sound emitted from the sonar transducer forms a circle-shaped beam with a width of approximately 12 degrees in the vertical direction (vertical beam width). The tilt angle is indicated by the angle between the center line of the beam and the horizontal plane.

  • Page 24: Suitable Tilt Angle

    Suitable tilt angle The figure below illustrates the relationship among tilt angle, depth and detection range. Refer to it to find out the suitable tilt angle for a given depth/detection range. Tilt angle and beam coverage Range (m) 0° (800) (200) (400) (600)

  • Page 25: Adjusting The Gain

    Adjusting the Gain The GAIN control adjusts receiver sensitivity (gain). Adjust it so fish echoes are clearly displayed with minimal noise on the screen. Too high a setting not only displays excess noise and makes it difficult to discriminate wanted echoes but also causes seabed echoes to be painted in strong colors, resulting in echoes being masked by seabed reflections.

  • Page 27: Fine Tuning The Picture

    The CSH-83/84 has three TVG functions, NEAR, MEDIUM and FAR, and they mainly compensate for propagation loss on short, middle and long ranges respectively, centered at the ranges shown below.
  • Page 28 Note: If the above procedure does not produce satisfactory re- sults, the TVG curve can be changed on the SYSTEM menu. The 30 log is the normal setting. The 25 log setting is useful for searching fish schools near shorelines or shallow waters. Ask for FURUNO dealar for detail.

  • Page 29: Suppressing Seabed Tail

    Suppressing Seabed Tail AGC (data setting window: SIGNAL, SIGNAL PROCESS) The AGC functions to automatically reduce the receiver gain only against strong echoes such as the seabed or a large fish school. Since weak echoes remain unaffected, a small fish school becomes easier to detect.

  • Page 30: Fish Schools

    Suppressing Seabed and Sea Surface Reflections in Shallow Waters Data setting window: TVG•TX, OUTPUT In shallow fishing grounds with hard or rocky bottom, seabed reflections often interfere with wanted fish echoes and they can not be eliminated sufficiently with the aforementioned TVG and AGC controls, especially when the TILT is set to a larger angle in order to track fish schools approaching within 400 m.
  • Page 31 1. Turn off the TX switch and operate all on-board equipment one by one while observing the picture. 2. Run the boat at various speeds to check if the noise is speed dependent. If neither of the above two steps has effect on the picture, adjust one of the following: Interference rejector (data setting window: SIGNAL, SIGNAL PROCESS)

  • Page 32: Adjusting Beamwidth

    Setting Noise limiter (data setting window: SIGNAL, SIGNAL PROCESS) Weak, unwanted reflections, colored light-blue or green, appear when the water is dirty, plankton layers exists, or due to ship’s noise. The noise limiter (NL) can reduce the effects of these unwanted reflections–raising the setting causes them to become bluish to background color.

  • Page 33: Marks And Data

    MARKS AND DATA Marks, Data and Display Mode Normal display mode Figure 4-1 Marks and data appearing in the normal display mode...
  • Page 34 Normal display mode w/text Figure 4-2 Marks and data appearing in the normal display mode w/text Echo sounder combination display Figure 4-3 Marks and data appearing in the echo sounder combination display mode...

  • Page 35: Permanently Displayed Marks And Data

    History display Figure 4-4 Marks and data appearing in the history display mode Permanently Displayed Marks and Data *Requres external sensor. Mark/Data Description Trackball Mark Data Trackball mark data: : Slant range : Horizontal range : Depth B : Bearing Bearing is shown in 360 or –180 indication system, relative to ship’s heading.

  • Page 36: Erasable Marks And Data

    This mark moves with ship's movement in the * true motion mode. On all other modes it is fixed at the screen center. When the CSH-83/84 is connected to a gyrocompass the mark is called * North Mark the north mark and points North.
  • Page 37 Mark/Data Description Latest Fish Mark These marks are inscribed on the screen by pressing the FISH key. Ten fish marks can be entered. Each time the key is pressed the fish mark appearance changes on the screen as follows: Fish Mark 1st press of FISH key 2nd press of FISH key Fish Mark...
  • Page 38 Mark Description With gyrocompass or speed log connection, own ship’s track is plotted *Ship’s Track Mark by a solid line. When the length of the line exceeds five times the range the oldest part of the track is erased. This mark can be displayed with current indicator input. The tidal *Tidal current marks are displayed on the net shooting mark ( ) and net...
  • Page 39 Mark Description Target Lock Mark The target lock mark automatically tracks the fish school selected by the operator. This function requires speed and gyrocompass inputs. Net Shooting Mark Press the SHOOT key at the instant you shoot the net to display the net shooting mark on the display.

  • Page 41: Menu Overview

    MENU OVERVIEW Many functions are carried out through the menu system, which consists of the USER, SYSTEM, DATA SET and INITIAL SET/ DATA menus. The menu you will use most often is the USER menu. How to open Menu USER Press MENU.
  • Page 42 2. Operate the arrow keys in sub panel 1 to select a menu. As you move through the menu, each item, initially shown as blue on gray, reverses to gray on blue to show selection. For example, select the HIST DSP/GRPH menu. 3.

  • Page 43: User Menu Description

    USER Menu Description Table 5-1 User menu description t s i t t e t e l i t i i l a i t s t s ( t s ( t s i t t e i t c .
  • Page 44 . f f i t c i t c T " " o F " . " i t i : e l i t s...

  • Page 45: System Menu Description

    SYSTEM Menu Description The SYSTEM menu can be displayed by pressing MENU and together. For help, press the HELP key. . t c i t t . t c i t t r i s i l e i t a i t c .
  • Page 46 . t u t t e ; ) s , ) l , ) e . ) t i t a i t a i t a i t a i t a l l a i t a i t a i t t S "...
  • Page 47 i t a t t e i l e i t a " r t s " r . s r i t t S " " e e l i " " P l a t i l s i t t , t l e t i...

  • Page 48: Data Set Menu Description

    DATA SET Menu Description The DATA SET menu can be display by pressing MENU + For help, press the HELP key. Menu Item Description COLOR CURVE Sonar 1 For each of these devices you may change Sonar 2 settings of echo level versus presentation color Echo Sounder 1 curve, which you selected at either "CURVE"...
  • Page 49 e t i . c t i t c t s r e t i Before Before Display Color i l e . s r . s r t t e . s r i t t (Continued on next page)
  • Page 50 i t s , t e i t c i t a i t t i t a l i t . e l t l i i t a . s r l i t ) . s e t t .

  • Page 51: Init Set/Test Menu Description

    INIT SET/TEST Menu Description The INIT SET/TEST menu can be display by pressing MENU and ON together. i t a i t a , t r " r ( " ; ) s 3 " " . . s t i t i , r e .
  • Page 52 . t i e t t r t s i t a ; t r . r e t t i . t i s t l i t t s l l . 1 . t l i l i t * : Under development 5-12...

  • Page 53: Function Keys

    FUNCTION KEYS Similar to the quick dialing function on a telephone, the five function keys (F1–F3) on the main panel record control and menu settings and replay them back exactly as programmed. The items you can program are gain, display mode, TX ON/OFF, USER menu, SYSTEM menu, DATA SET menus and data setting win- dow.

  • Page 54: Replaying A Function Key

    REGISTER FUNCTION KEY USER MENU Customized settings are registered to FUNCTION keys. Select key number with key and press MENU key. Press END key to return to sub menu. Figure 6-2 REGISTER menu 5. Press the up or down arrow key in the sub panel 1 to select the function key to program, then press the MENU key.

  • Page 55: Saving Function Key Settings To A Memory Card

    Fine Function Key Fine Tuning Adjustment Item TVG Near TVG Mid TVG Far Tx Cycle Tx Beamwidth Tx Power Saving Function Key Settings to a Memory Card 1. Press the MENU key. 2. Select the CARD UTILITY menu. CARD UTILITY Press END key to return to main menu.
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  • Page 57: Advanced Level Operation

    ADVANCED LEVEL OPERATION Finding Fish School Center When you want to find the center depth of a fish school, use the auto tilt function, which automatically scans the tilt angle within the selected width. You can choose angle width from Narrow or Wide on the INIT/SET TEST menu.

  • Page 58: Tracking A Fish School (Target Lock)

    Tracking a Fish School (target lock) Target lock, which requires speed and heading inputs, automati- cally tracks an important fish school so that you wonít lose sight of it on the display screen. Two types of target lock are avail- able: Target Mark or Fish.
  • Page 59 Target lock mark appearance The size and thickness of the target lock mark indicates fish speed and tracking status, as shown below. Target lock Meaning mark appearance Mark size indicates Fast relative speed. Medium Slow Mark thickness shows (More than 5 tracking status.
  • Page 60 4. Select Tracking Method, and then press the [MENU] key. 5. Select method desired. 6. Press the [END] key several times to close the menu. Tracking target lock mark 1. Operate the trackball to place the trackball mark on the fish school you want to track.
  • Page 61 Setting target lock conditions 1. Open the sub panel 1. 2. Press the [MENU] key while pressing and holding down the down arrow key in sub panel 1. 3. Select TARGET LOCK with the arrow keys. 4. Press the [MENU] key. SYSTEM MENU TARGET LOCK Select item with...
  • Page 62 Description of target lock items TrackingMethod Sets target lock function: target lock mark, fish or automatic. Track Echo Color Sets minimum echo signal level to track. A fish school whose signal level is above the level set here is tracked. Fish Speed Limit Sets fish speed at which target lock is cancelled.

  • Page 63: Detecting Fish Schools Aurally

    Detecting Fish Schools Aurally Sometimes you may be preoccupied with other tasks and unable to concentrate on watching the sonar picture. In such cases it would be a good choice to use the audio function. This function enables you to monitor echoes from fish schools and seabed through the built-in speaker.

  • Page 64: The Fish Alarm

    The Fish Alarm The fish alarm sounds an audible alarm when a fish echo above a preset strength enters an alarm zone. You set parameters for the fish alarm at ALM on the data setting window. ON/OFF: Turn alarm on or off. Level: Set echo strength level which will activate the alarm.

  • Page 65: Relocating Fish School For Easy Observation

    Relocating Fish School for Easy Observation 1. Operate the trackball to place the trackball mark on the posi- tion where you want to relocate the own ship mark. 2. Press the OFF-CENT key. 3. To move the own ship mark back to the screen center, press the OFF-CENT key again.

  • Page 66: Comparing Of Fish School Concentration

    Comparing of Fish School Concentration You can get an estimate of the volume of two fish schools by using the two ESTIMATE keys. 1. Operate the trackball to place the trackball mark on a fish school, and then press the ESTIMATE 1 key. The estimate mark appears on the fish school.

  • Page 67: Measuring Fish School Speed

    Measuring Fish School Speed To ensure a good haul, it is important to estimate the direction and speed of the fish school before shooting the net. You can do this with the FISH key. If the tidal current data is used together with fish speed data, you can determine the timing of the net shooting more efficiently.

  • Page 68: The Event Mark

    Note 3: Each time the FISH key is pressed the latest fish mark and ship’s speed mark change in the sequence shown below: Fish key pressed once: Fish key pressed twice: Fish key pressed three times: Fish key pressed four times: The Event Mark The event mark is useful for finding the horizontal range, depth and bearing to a location some distance from current position.

  • Page 69: Entering An Event Mark

    Entering an event mark 1. Set the trackball mark where you want to place an event mark (latest event mark). 2. Press an EVENT key. The horizontal range, depth and bear- ing to the event mark appear at the bottom left corner of the screen.

  • Page 70: True Motion Display

    True Motion Display The relative motion display places the own ship mark at the screen center, and echoes from fish and the seabed move on the screen relative to own ship’s movement. This means that even when the ship is dead in water, fish echoes move on the display. In the true motion display, however, stationary objects are fixed and own ship and fish echoes move on the display in accordance with their true courses and speeds.

  • Page 71: Plotting Net Location Mark

    Plotting Net Location Mark Before shooting net, you will decide the shoot timing consider- ing the water current direction, distance to fish school and mov- ing direction of the fish school. Use the net location mark as a guide to decide the timing. This function requires speed and heading inputs.

  • Page 72: Observing Net Behavior

    Observing Net Behavior With net sonde connection you can observe net behavior after the throwing of the net, on the echo sounder combination mode. Accurate depiction of net sonde position depends on proper set- ting of the distances between net sonde transmitters. You can set those distances on NET SONDE XMTR in the DATA SET menu.

  • Page 73: Target Slice Display

    Target Slice Display Using automatic tilting, the target slice mode displays the echo inside the estimate mark at several different tilt angles (depth). To access the target slice display, press the TARGET SLICE key. The table and illustration below describe the target slice mode.
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  • Page 75: Port/Starboard, Horizontal Slice Displays

    SYSTEM menu and displays them on the lower 1/3 of the screen. If the bearing width is set to 90 degrees, for example, the CSH-83/84 displays echoes in both port and starboard directions. The picture is scrolled vertically to downward.

  • Page 76: Horizontal Slice Display

    Horizontal slice display 120 degrees of the picture in the horizontal direction is shown for a given depth (D) in the horizontal slice window at the bot- tom of the display. The area to display may be selected with the [R/B] key.

  • Page 77: Memory Card Operations

    MEMORY CARD OPERATIONS Initializing Memory Cards Before you save information to a memory card it must be initial- ized (formatted). 1. Press the MENU key to display the USER menu. 2. Select the CARD UTILITY menu. 3. Select Initialize. It takes more than two minutes to initialize a memory card.

  • Page 78: Saving The Picture

    Saving the Picture You can save either the whole screen or the echo inside the esti- mate mark to the internal memory or a memory card. , e r i t t i t s i t t 1. Press the MENU key to display the USER menu. 2.

  • Page 79: Saving Net Shooting Data

    Saving Net Shooting Data How net shooting data is saved The unit starts accumulating net shooting data when the SHOOT key is pressed. When net shooting is concluded by pressing the SHOOT key again, the echo inside the estimate mark and other net shooting data are saved to the internal memory.

  • Page 80: Replaying Saved Data

    Replaying Saved Data Whole picture or echo inside estimate mark 1. Press the RECALL key (on the main panel). 2. Press the right or left arrow key in sub panel 1 to select item to replay. The left arrow key selects older data (for example, data in memory card);...

  • Page 81: Turning Marks, Data On/Off

    TURNING MARKS, DATA ON/OFF You can turn marks and data on or off through the data setting window or the USER menu. Turning marks on/off through the data setting window Select DELETE MK to delete the following marks: Event Mark 1 Event Mark 2 Each press of + or –...
  • Page 82 10-2...

  • Page 83: Interpreting The Display

    INTERPRETING THE DISPLAY Seabed Echoes When the tilt angle is widened, the seabed echo illustrated be- low will appear on the display. When the tilt is narrowed, the seabed trace becomes wider and weaker. By observing the sea- bed condition on the display, the skipper can prevent net dam- age.

  • Page 84: Fish Schools

    Fish Schools A fish school appears as a mass of echoes on the screen. The color of the mass shows the density of fish schools on the sonar beam. To find distribution and center point of a fish school, try several different tilt angles.

  • Page 85: Sea Surface Reflections

    Sea Surface Reflections To reduce sea surface reflections, set the tilt angle to 5 or higher, so the upper edge of the sonar beam does not hit the sea surface, or adjust TVG. When a narrow tilt angle is used, sea surface reflections cover a large area as illustrated below.

  • Page 86: False Echo By Sidelobe

    False Echo by Sidelobe An ultrasonic wave is emitted only in the direction set by the TILT lever, however there are some emissions outside the main beam. These are called sidelobes. The energy of the sidelobe is fairly weak but when the water is comparatively shallow and the bottom is rocky and hard, strong signals are detected by the sidelobe.

  • Page 87: Overvoltage Warning

    WARNINGS Overvoltage Warning If the input voltage to this unit rises above 125 VAC, the over- voltage detection circuit activates, an alarm sounds and the mes- sage OVERVOLTAGE appears at the screen center. If this occurs, retract the transducer, turn the power off and check the ship’s mains voltage.
  • Page 88 Reset Switch TEST/NORMAL switch Breaker Photo No. 1479 RAISE/LOWER CONTROL BOX Photo No. 1744 HULL UNIT Figure 12-1 How to manually raise the transducer 12-2...

  • Page 89: Self Tests

    SELF TESTS The CSH-83/84 has various self tests to check it for proper op- eration. If a test reveals equipment malfunction do not attempt to check inside the equipment. There are no user serviceable parts inside the equipment. WARNING Do not open the cover.

  • Page 90: Self Test Description

    RAM = OK ROM = OK RAM = OK ROM = OK RAM = OK Note: Above program numbers are for CSH-83. Figure 13-2 Single test Continuous test The devices of the display unit are checked con- CONTI TEST tinuously.
  • Page 91 Panel test This test checks the keys of the main and sub pan- PANEL TEST els and the remote control box. Press and release each key. Its on-screen location should display “1” when the key is pressed and “0” when released. To escape from the test reset the power.
  • Page 92 Gray test This test checks for screen distortion. To escape from GRAY TEST the test reset the power. Figure 13-6 Gray test SIO test This test checks for proper communication between SIO TEST the display unit and transmitter unit, and requires a DRAW = OK jumper plug.

  • Page 93: Interface Unit Cs-120A Self Test

    Interface Unit CS-120A Self Test 1. Open the cover of the interface unit. 2. Find DIP switch DP-1 on the lone circuit board. Turn switch #6 on to start the self test. The results of the check appear on the digital display beside the DIP switch. 3.
  • Page 94 13-6...

  • Page 95: Input Data Selection

    INPUT DATA SELECTION Selection of Data at Interface Unit CS-120A Nav data and fish data input from external equipment can be turned on or off at DIP switch DP-1 in the Interface Unit CS- 120A. Ship's speed and bearing (for track plotting, true motion, target lock, etc.) Input Device Select navigation which feeds nav data for drawing ship's track...

  • Page 96: Setting Distances Between Net Sonde Transmitters

    Setting Distances Between Net Sonde Transmitters To accurately display the net shooting mark and net sonde mark position, the distance between transmitters must be correctly set. This is done on the DATA SET menu. R0: Length of net from its end to transmitter1 in meters.

  • Page 97: Maintenance

    MAINTENANCE WARNING Do not open the cover. There are no user-serviceable parts inside. Refer any repair work to a qualified technician. Display Unit Maintenance Handle the equipment with care. Damage can cause corrosion. Clean the screen and filter Keep heater away from the regularly.

  • Page 98: Hull Unit Maintenance

    Hull Unit Maintenance Apply MOLYTONE grease #2 every six months. Raise transducer and coat main shaft with DAPHAECOROAEX #2 every six months. CAUTION The zinc block near the transducer Dry dock ship and clean must be replaced yearly. transducer face yearly. Apply single coat of The junction between the transducer "MARINE STAR 20 Mod...

  • Page 99: Menu Tree

    MENU TREE USER Menu USER MENU CARD UTILITY List Execute Save Execute Delete Execute Initialize Execute Execute Save CARD ECHO DAT Save Execute CARD NET DATA Register FUNCTION KEY Execute DATA DISPLAY Event Mark 1 Event Mark 2 Fish Mark On Track Data Depth Temp OFF Text Window...

  • Page 100: Data Set Menu

    DATA SET Menu DATA SET MENU COLOR CURVE Sonar 1 Execute Sonar 2 Execute Echo Sounder 1 Execute Echo Sounder 2 Execute CHANGE COLOR Sonar 1 Execute Sonar 2 Execute Echo Sounder Execute Marks Execute Menu Execute NET SHOOT PLAN Net Diameter Setting range: 200-1000 m Tilt Interlock...

  • Page 101: Init Set/Test Menu

    INIT SET/TEST Menu INIT SET/TEST MENU HEADING ADJ Heading Adjust Setting range: 0 BAUD RATE I/F CS-120 2400, 4800 bps Aux Port 1 2400, 4800 bps Aux Port 2 2400, 4800 bps Aux Port 3 2400, 4800 bps NMEA 4800, 9600 bps EXT KP KP Out Polarity Negative...

  • Page 102: System Menu

    SYSTEM Menu SYSTEM MENU SIGNAL PROCESS Smooth Echo - - - Rng Setting range: 0 to 3 Setting range: 0 to 3 Smooth Echo - - - Cir Delete Color Setting range: 1 to 10 FAR TVG Far TVG Curve 15 Log 20 Log 25 Log 30 Log TM Display Range...
  • Page 103 SYSTEM MENU HIST DISPLAY H-Slice Width 1 2 3 4 (Continued from PRT/STBD Sample Setting range: 0°-180° previous page) INTERLOCK Tilt Range Event Mark Fish Mark Net Shoot Mark Target Lock DEFAULTS Defaults Execute...

  • Page 105: Specifications

    SPECIFICATIONS Model: CSH-83/84-M 75 (Freq.: 75 kHz) 107 (Freq: 107 kHz) 81 (Freq.: 81 kHz) 88 (Freq: 88 kHz) 94 (Freq.: 94 kHz) 1. GENERAL (1) Range, TX Cycle, Pulselength " r " F " r " NOTE 1) Transmission cycle is selectable in 10 steps.
  • Page 106 -5 (upward) to 60 (downward), continuous. NOTE: Beamwidth depends on transmitter frequency. 2. DISPLAY (1) Picture Display CSH-83: PPI display on 15 inch non-glare, high-resolution color CSH-84: PPI display on 21 inch non-glare, high-resolution color (2) Color 16 colors (sonar picture), 4 colors (marks)

  • Page 107: Hull Unit

    data (new setting appears in larger characters for 5 seconds when changed), Current data *(current speed, direction, layer, depth), Navigation data *(ship’s speed, heading, water depth, water temperature) Own ship’s position *(latitude/longitude), Net sonde data *(net depth, distance to seabed, water temperature, sinking speed of net) (6) Features Custom mode, interference rejector, afterglow, noise limiter,...
  • Page 108 SP-4...

  • Page 109: Index

    INDEX AGC ..............3-3 Nav Data ............4-6 2AGC .............. 3-3 Net Behavior ..........7-16 AUDIO ............7-5 Net Location Mark ........7-15 Net Shooting Data .......... 9-4 Net Sonde Data ..........4-6 Beamwidth ............3-6 Net Sonde Transmitter ........14-2 Noise .............
  • Page 110 IN-2...

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