Furuno CSH-23F/24F - Manual

Page 3 - SAFETY INSTRUCTIONS; WARNING

SAFETY INSTRUCTIONS WARNING Immediately turn off the power at theswitchboard if water leaks into theequipment or something is dropped inthe equipment. Continued use of the equipment can causefire or electrical shock. Contact a FURUNOagent for service. Do not disassemble or modify theequipment. Fire,...

Page 4 - ii; CAUTION

ii CAUTION Do not exceed 18 knots when operatingthe equipment and do not exceed 16knots when lowering or raising thetransducer. The transducer may become damaged. The zinc block attached near thetransducer must be replaced yearly. The junction between the transducer andmain shaft may corrode, which ...

Page 5 - iii; TABLE OF CONTENTS

iii TABLE OF CONTENTS FOREWORD A Word to CSH-23F/24F Owners ........................................................................................... viiFeatures ................................................................................................................................... viiS...

Page 6 - iv

iv FUNCTION KEYS Programming the Function Keys ........................................................................................... 6-1Replaying a Function Key ..................................................................................................... 6-1Function Key Fine Tuning ......

Page 9 - vii; FOREWORD; Features

vii FOREWORD A Word to CSH-23F/24F Owners Congratulations on your choice of the FURUNO CSH-23F/24F Color Scanning Sonar. Weare confident you will see why the FURUNO name has become synonymous with qualityand reliability. For over 40 years FURUNO Electric Company has enjoyed an enviable reputation fo...

Page 10 - viii; System Configuration

viii System Configuration STANDARD OPTION REMOTE CONTROL BOX CSH-116 DISPLAY UNIT CSH-230F(CSH-23F) CSH-2400F(CSH-24F) REMOTE DISPLAY* CSH-106 SUB DISPLAY* CSH-236 STEP-DOWN TRANSFORMER PT-400 INTERFACE UNIT CS-120A VI-1100A INTERFACE UNIT FNZ JOINT BOX CS-170 TRANSMITTER UNIT CSH-310 RECEIVER UNIT ...

Page 11 - CONTROL DESCRIPTION

1-1 CONTROL DESCRIPTION Control Layout on Display Unit and RemoteControl Box SUB PANEL 2 POWER TRANSDUCER OFF ON F1 F2 F3 - + NORM E/S HIST RECALL MEMO TARGET SLICE SHOOT R/B - + - + RANGE GAIN AUTO TILT WIDTH TILT SCAN DEPTH DIM CONT BRILL AUDIO NET COURSE TARGET LOCK EVENT1 EVENT2 ESTI- MATE1 ESTI...

Page 12 - Main Panel; Figure 1-2 Main panel

1-2 Main Panel POWER TRANSDUCER OFF ON F1 F2 F3 - + NORM E/S HIST RECALL MEMO TARGET SLICE SHOOT R/B - + - + RANGE GAIN AUTO TILT WIDTH TILT SCAN DEPTH DIM CONT BRILL AUDIO NET COURSE TARGET LOCK EVENT1 EVENT2 ESTI- MATE1 ESTI- MATE2 FISH OFF- CENT VERTSCAN Figure 1-2 Main panel Main panel control d...

Page 14 - Sub Panel 1; Figure 1-3 Sub panel 1; Control

1-4 Sub Panel 1 RECALL MEMO HIST E/S NORM F4 F5 F3 F2 F1 ON OFF POWER TRANSDUCER CARD REPLAY COLOR NET REPLAY TX HELP END MENU Figure 1-3 Sub panel 1 Sub panel 1 control description Control Function MENU Opens/closes the menu. END • When the menu is displayed it terminates menu operation and returns...

Page 15 - Figure 1-4 Sub panel 2

1-5 Sub Panel 2 (data setting window) SIGNAL DELETE MK TVG•TX ES SONR•BEAM AUTO ALM•AUDIO NEAR 7 MEDIUM 8 FAR 9 CYCLE 7 PL 8 OUTPUT 9 TVG TX + + + + + + – – – – – – h g OPERP-SET (TOGGLE) Setting change keysChange control setting. Item selection keysSelect item. OPER P-SET keyOpens/closes data setti...

Page 18 - Remote Control Box; Figure 1-5 Remote control box

1-8 Remote Control Box 1 2 3 DISP SELECT DATA EVENT TGT LOCK ESTIMATE 1 NET COURSE FISH OFF- CENT TX 1 2 3 4 FUNCTION 5 – + RANGE + – GAIN SHOOT MEMO TGTSLICE RECALL AUTO AUTO VERTSCAN TILT TRAIN SCAN DEPTH Each press displays water temperature or depth at screen center for about five seconds. Turns...

Page 19 - OPERATIONAL OVERVIEW; Turning the Power On/Off; Turning the power on; Adjusting Screen Brilliance, Control Panel Backlighting

2-1 OPERATIONAL OVERVIEW Turning the Power On/Off Turning the power on Press the ON switch on the main panel. The lamp above theswitch should light. If it doesn’t press the TX switch on subpanel 1. Turning the power off Retract the transducer with the c switch and then press the OFF key on the main ...

Page 20 - Selecting a Display Mode; Table 2-1 Display mode description; Mode

2-2 Selecting a Display Mode The CSH-23F/24F provides three display modes: normal sonarpicture, echo sounder (E/S) combination, and history displaycombination. 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 ...

Page 21 - Finding a proper tilt angle is important when searching for fish.; Seabed echo and tilt angle; Case 1: Tilt angle 30 to 40 degrees

2-3 Selecting a Display Range Operate the RANGE control to select a display range. The rangeselected appears at the top center of the screen. Setting the Tilt Angle The tilt angle shows the direction to which the sound wave isemitted. When the sound wave is emitted horizontally, the tiltangle is sai...

Page 22 - How to discriminate fish echoes from the seabed; Figure 2-1 Fish echo and tilt angle; Points to consider

2-4 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 bythe seabed. Case 2: Tilt angle 10 to 20 degrees. Fish school is ...

Page 23 - Tilt angle for surface fish; Figure 2-2 Tilt angle and sea surface reflections

2-5 Tilt angle for surface fish Sound emitted from the sonar transducer forms a circle-shapedbeam with a width of approximately 12 degrees in the verticaldirection (vertical beam width). The tilt angle is indicated by theangle between the center line of the beam and the horizontalplane. Then, if the...

Page 24 - Suitable tilt angle; Figure 2-3 Tilt angle and beam coverage

2-6 Suitable tilt angle The figure below illustrates the relationship among tilt angle,depth and detection range. Refer to it to find out the suitable tiltangle for a given depth/detection range. 100 (200) 200 (400) 300 (600) 400 (800) Range (m) 0° 5° 10° 15° 20(40) 40(80) 60(120) 80(160) 100(200) 2...

Page 25 - Adjusting the Gain; Figure 2-4 Gain settings and resulting picture; Measuring Range and Bearing to a Target; Figure 2-5 Location of range and bearing indications; Note: The bearing is shown in either 360; indication

2-7 Adjusting the Gain The GAIN control adjusts receiver sensitivity (gain). Adjust itso fish echoes are clearly displayed with minimal noise on thescreen. Too high a setting not only displays excess noise andmakes it difficult to discriminate wanted echoes but also causesseabed echoes to be painted...

Page 27 - FINE TUNING THE PICTURE; Eliminating Unwanted Feeble Echoes; Figure 3-1 Principle of TVG; How to adjust TVG

3-1 FINE TUNING THE PICTURE Eliminating Unwanted Feeble Echoes Echoes from targets such as seabed and fish return to the trans-ducer in order of distance to them, and when we compare theirintensities at the transducer face, those from nearer targets aregenerally stronger when their reflecting proper...

Page 29 - Suppressing Seabed Tail; AGC function is fixed at “3”.

3-3 Suppressing Seabed Tail AGC (data setting window: SIGNAL, SIGNALPROCESS) The AGC functions to automatically reduce the receiver gainonly against strong echoes such as the seabed or a large fishschool. Since weak echoes remain unaffected, a small fish schoolbecomes easier to detect. Adjust it so ...

Page 30 - Rejecting Sonar Interference and Noise; Identifying noise source

3-4 Suppressing Seabed and Sea Surface Reflections inShallow Waters Data setting window: TVG•TX, OUTPUT In shallow fishing grounds with hard or rocky bottom, seabedreflections often interfere with wanted fish echoes and they cannot be eliminated sufficiently with the aforementioned TVG andAGC contro...

Page 31 - Figure 3-3 How CYCLE works

3-5 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, adjustone of the following: Interference rejector (data se...

Page 32 - Adjusting Beamwidth; Table 3-1 Beamwidth adjustment menus; Menu

3-6 Setting F-shift (data setting window: SONR•BEAM,SONAR) If interference cannot be suppressed by the interference rejector(IR) or Tx cycle, change the setting of F-SHFT from 1 to 2. Noise limiter (data setting window: SIGNAL, SIGNALPROCESS) Weak, unwanted reflections, colored light-blue or green, ...

Page 33 - MARKS AND DATA; Marks, Data and Display Mode; Normal display mode

4-1 MARKS AND DATA Marks, Data and Display Mode Normal display mode Figure 4-1 Marks and data appearing in the normal displaymode

Page 34 - Normal display mode w/text

4-2 Figure 4-2 Marks and data appearing in the normal displaymode w/text Figure 4-3 Marks and data appearing in the echo soundercombination display mode Normal display mode w/text Echo sounder combinationdisplay

Page 35 - Permanently Displayed Marks and Data; Mark/Data Description; History display

4-3 Figure 4-4 Marks and data appearing in the history displaymode Permanently Displayed Marks and Data Range Data R Shows the range scale set with the RANGE control. Tilt Angle Data T ° Mark/Data Description The tilt angle appears below the range. The tilt angle can be changedin 1 ° steps within th...

Page 36 - Erasable Marks and Data; Mark/Data Description

4-4 Mark/Data Description Shows own ship’s present position. The direction of the arrow showsship’s heading. This mark moves with ship’s movement in the * truemotion mode. On all other modes it is fixed at the screen center. Own Ship’s Mark When the CSH-23F/24F is connected to a gyrocompass the mark...

Page 38 - Mark Description

4-6 *Ship’s Track Mark With gyrocompass or speed log connection, own ship’s track is plotted by a solid line. When the length of the line exceeds five times therange the oldest part of the track is erased. Nav Data S : .C :D : T : . Own Ship Data ° . N ° . E With appropriate sensors speed (S), cours...

Page 39 - Mark Description

4-7 Mark Description Target Lock Mark The target lock mark automatically tracks the fish school selectedby the operator. This function requires speed and gyrocompass inputs. Net Shooting Mark Net Shooting Data Press the SHOOT key at the instant you shoot the net to display thenet shooting mark on th...

Page 41 - MENU OVERVIEW; USER Menu Operation; Press the MENU key to open the USER menu.

5-1 MENU OVERVIEW Many functions are carried out through the menu system, whichconsists of the USER, SYSTEM, DATA SET and INITIAL SET/DATA menus. The menu you will use most often is the USERmenu. Menu How to open USER SYSTEM DATA SET INIT SET/TEST Press MENU. Press and MENU together. Press and MENU ...

Page 42 - Operate the up and down arrow keys in sub panel 1 to select; Note: The HELP key provides menu operating information.; Figure 5-3 Menu screen location and display mode

5-2 2. Operate the arrow keys in sub panel 1 to select a menu. As you move through the menu, each item, initially shown asblue on gray, reverses to gray on blue to show selection. Forexample, select the HIST DSP/GRPH menu. 3. Press the MENU key to display menu selected. USER MENU Select item with dc...

Page 43 - USER Menu Description; Table 5-1 User menu description

5-3 USER Menu Description Table 5-1 User menu description u n e M m e t I u n e M n o i t p i r c s e D D R A C Y T I L I T U t s i L . d r a c y r o m e m f o s t n e t n o c s t s i L e v a S . d r a c y r o m e m o t s g n i t t e s u n e m d n a l o r t n o c s e v a S e t e l e D . d r a c y r ...

Page 45 - SYSTEM Menu Description; The SYSTEM menu can be displayed by pressing MENU and

5-5 SYSTEM Menu Description The SYSTEM menu can be displayed by pressing MENU and c together. For help, press the HELP key. u n e M m e t I n o i t p i r c s e D L A N G I S S S E C O R P g n R o h c E h t o o m S e g n a r n i l e v e l g n i h t o o m s o h c e s t c e l e S r e h g i h e h t , r ...

Page 48 - DATA SET Menu Description; The DATA SET menu can be displayed by pressing MENU +

5-8 DATA SET Menu Description The DATA SET menu can be displayed by pressing MENU + d . For help, press the HELP key. u n e M u n e M u n e M u n e M u n e M m e t I m e t I m e t I m e t I m e t I n o i t p i r c s e D n o i t p i r c s e D n o i t p i r c s e D n o i t p i r c s e D n o i t p i r ...

Page 51 - INIT SET/TEST Menu Description

5-11 INIT SET/TEST Menu Description The INIT SET/TEST menu can be displayed by pressing MENUand ON together. u n e M m e t I n o i t p i r c s e D J D A G N I D A E H t s u j d A g n i d a e H l l u h n o k r a m D A E H f o e l g n a n o i t a i v e d s t e S 5 1 s i n o i t a i v e d f I . w o b s...

Page 53 - FUNCTION KEYS; Programming the Function Keys; Select the FUNCTION KEY menu and press the MENU key.; Figure 6-1 FUNCTION KEY menu

6-1 FUNCTION KEYS Similar to the quick dialing function on a telephone, the fivefunction keys (F1–F3) on the main panel record control and menusettings and replay them back exactly as programmed. The itemsyou can program are gain, display mode, TX ON/OFF, USERmenu, SYSTEM menu, DATA SET menus and da...

Page 54 - Replaying a Function Key; Note: Register function keys beforehand to use this function.; Press desired function key. The lamp above the function key

6-2 FUNCTION KEY REGISTER 1 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...

Page 55 - Saving Function Key Settings to a Memory Card; Figure 6-2 CARD UTILITY menu; Replaying Function Key Settings from a Memory Card; Press the CARD REPLAY key on sub panel 1.

6-3 Function Key Fine Tuning Fine Adjustment Item -4 -3 -2 -1 0 1 2 3 4 5 TVG Near -3 -2 -1 0 0 1 1 2 3 4 TVG Mid -3 -2 -1 0 0 0 1 1 2 3 TVG Far -3 -2 -1 0 0 0 0 1 1 2 Tx Cycle 0 0 0 0 0 0 0 0 0 0 Tx Beamwidth -3 -2 -1 0 0 0 0 0 0 0 Tx Power -2 -1 0 0 0 0 0 0 0 0 Saving Function Key Settings to a Me...

Page 57 - ADVANCED LEVEL OPERATION; Finding Fish School Center; varies at every transmission as follows:

7-1 ADVANCED LEVEL OPERATION Finding Fish School Center When you want to find the center depth of a fish school, usethe auto tilt function, which automatically scans the tilt anglewithin the selected width. There are two automatic scan range,WIDE and NARROW, which can be selected by the INITSET/TEST...

Page 58 - Tracking a fish school; Operate the trackball to place the trackball mark on fish school; Figure 7-2 Target lock mark and target lock data

7-2 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 sightof it on the display screen. Two types of target lock are avail-able: Target Mark or Fish. One may be selected on the SYS-TEM menu...

Page 59 - Target lock mark appearance; Figure 7-3 Target lock mark appearance; Erasing target lock mark; Target lock marks may be erased as follows:; Choosing target lock mode; Two types of target lock are available: target mark and fish.

7-3 Target lock mark appearance The size and thickness of the target lock mark indicates fish speedand tracking status, as shown below. Meaning Target lockmark appearance Mark size indicatesrelative speed. FastMediumSlow (More than 5Tx cycles)(Up to 3 Txcycles) Mark thickness showstracking status. F...

Page 60 - Tracking target lock mark; Operate the trackball to place the trackball mark on the fish; Figure 7-4 Target lock and tilt angle

7-4 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. 2. Press the [TARGET LOCK] key to light...

Page 61 - Setting target lock conditions; down arrow key in sub panel 1.; Figure 7-5 Target lock menu

7-5 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 Tracking Method TGT Mark Fish Track Echo Color 8 Choose w...

Page 62 - Description of target lock items

7-6 Description of target lock items TrackingMethodSets target lock function: target lock mark, fish or automatic. Track Echo Color Sets minimum echo signal level to track. A fish school whosesignal level is above the level set here is tracked. Fish Speed Limit Sets fish speed at which target lock i...

Page 63 - Detecting Fish Schools Aurally

7-7 Detecting Fish Schools Aurally Sometimes you may be preoccupied with other tasks and unableto concentrate on watching the sonar picture. In such cases itwould be a good choice to use the audio function. This functionenables you to monitor echoes from fish schools and seabedthrough the built-in s...

Page 64 - The Fish Alarm; Set echo strength level which will activate the alarm.; Figure 7-6 How to set the fish alarm zone

7-8 The Fish Alarm The fish alarm sounds an audible alarm when a fish echo abovea preset strength enters an alarm zone. You set parameters forthe 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. Zone: Set alarm z...

Page 65 - Relocating Fish School for Easy Observation; Operate the trackball to place the trackball mark on the posi-

7-9 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. Own shipmark Place tra...

Page 66 - Comparing of Fish School Concentration; Figure 7-8 Estimate marks and their data

7-10 Comparing of Fish School Concentration You can get an estimate of the volume of two fish schools byusing 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. Relative vol-um...

Page 67 - Measuring Fish School Speed; Figure 7-9 How to measure fish speed

7-11 Measuring Fish School Speed To ensure a good haul, it is important to estimate the directionand speed of the fish school before shooting the net. You can dothis with the FISH key. If the tidal current data is used togetherwith fish speed data, you can determine the timing of the netshooting mor...

Page 68 - The Event Mark; Figure 7-10 Event marks

7-12 Note 3: Each time the FISH key is pressed the latest fish markand 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: ↓ ↓ X → ↓ X ↓ ↓ X → ↓ → The Event Mark The event mark is useful for f...

Page 69 - Entering an event mark; Set the trackball mark where you want to place an event mark; Figure 7-11 Event mark description; Erasing an event mark

7-13 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 thescreen. (35) Stored when EVENT key is pressed. A B → 234: Horizon...

Page 70 - True Motion Display; Figure 7-12 True motion display

7-14 True Motion Display The relative motion display places the own ship mark at the screencenter, and echoes from fish and the seabed move on the screenrelative to own ship’s movement. This means that even whenthe ship is dead in water, fish echoes move on the display. In the true motion display, h...

Page 71 - Plotting Net Location Mark; This function requires speed and heading inputs.

7-15 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 aguide to decide the timing. This function requires speed and heading inputs....

Page 72 - Observing Net Behavior

7-16 Observing Net Behavior With net sonde connection you can observe net behavior afterthe 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 setthose distances on NET...

Page 73 - Target Slice Display; Figure 7-15 Target slice display

7-17 Target Slice Display Using automatic tilting, the target slice mode displays the echoinside the estimate mark at several different tilt angles (depth).To access the target slice display, press the TARGET SLICEkey. The table and illustration below describe the target slicemode. n i . o N g n i w...

Page 75 - VERTICAL SCANNING DISPLAY; Figure 8-1 The concept of the vertical scanning mode; Using Vertical Scanning Display; ing that the vertical scanning function is ON.

8-1 VERTICAL SCANNING DISPLAY The vertical scanning display provides a wide fish eye view ofunderwater conditions from the surface to the seabed. The fig-ure below illustrates the concept of the vertical scanning mode,in comparison with the normal sonar beam. The vertical scan-ning mode helps you ke...

Page 76 - Display Indications; Figure 8-3 Indications of vertical scanning display; Application to Bonito and Tuna Fishing; Searching

8-2 Display Indications Figure 8-3 Indications of vertical scanning display Application to Bonito and Tuna Fishing Tracking of bonito and tuna presents a special challenge to thesonar operator: He must try to keep them within the sonar beam,a formidable task considering their high speed and penchant...

Page 77 - Figure 8-5 Approaching

8-3 Tracking If you are visually tracking a fish school which characteristi-cally leaps and dives regularly, or a school with a flock of birdshovering over it, the school will scatter once the vessel ap-proaches, thus you will lose sight of the school. The CSH-23F/24F provides continuous pictures of...

Page 78 - Catching

8-4 Catching While the sonar operator monitors the sonar for other fish schools,the crew can scatter bait and water to attract fish to the boat. Figure 8-6 Catching

Page 79 - DISPLAYS; Port/Starboard display

9-1 PORT/STARBOARD, HORIZONTAL SLICE DISPLAYS The port/starboard display or horizontal slice display may bedisplayed by pressing the [HIST] key. The display shown de-pends on the setting of “HIST DSP/GRPH” in the USER menu. Port/Starboard display The port/starboard display takes echoes along the bea...

Page 80 - Horizontal slice display; Figure 9-2 Horizontal slice display

9-2 Horizontal slice display 120 degrees of the picture in the horizontal direction is shownfor 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. Range Mark Horizontal Slice Width D Bearing Mark Range Mark Color Bar...

Page 81 - MEMORY CARD OPERATIONS; Initializing Memory Cards; Press the MENU key to display the USER menu.

10-1 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. 4...

Page 82 - Saving the Picture; Est MK: Saves echo inside the estimate mark to internal

10-2 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 v a S o t a t a D e v a S o t a t a D e v a S o t a t a D e v a S o t a t a D e v a S o t a t a D d o h t e M g n i v a S d o h t e M g n i v a S d o h t e M ...

Page 83 - Saving Net Shooting Data; How net shooting data is saved

10-3 Saving Net Shooting Data How net shooting data is saved The unit starts accumulating net shooting data when the SHOOTkey is pressed. When net shooting is concluded by pressing theSHOOT key again, the echo inside the estimate mark and othernet shooting data are saved to the internal memory. Note...

Page 84 - Replaying Saved Data; Whole picture or echo inside estimate mark; Deleting Memory Card Contents

10-4 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); the right arrow key newer (for ex-a...

Page 85 - Select DELETE MK to delete the following marks:; Turning marks on/off through the user menu

11-1 TURNING MARKS, DATA ON/OFF You can turn marks and data on or off through the data settingwindow or the USER menu. Turning marks on/off through the data settingwindow Select DELETE MK to delete the following marks: Event Mark 1 Event Mark 2 Fish Mark Own Ship Mark Ship's Track Each press of + or...

Page 87 - INTERPRETING THE DISPLAY; Seabed Echoes; Figure 12-1 Seabed echoes

12-1 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, theseabed trace becomes wider and weaker. By observing the sea-bed condition on the display, the skipper can prevent net dam-age. (A) ...

Page 88 - Fish Schools; Figure 12-2 Fish schools

12-2 Fish Schools A fish school appears as a mass of echoes on the screen. Thecolor of the mass shows the density of fish schools on the sonarbeam. To find distribution and center point of a fish school, tryseveral different tilt angles. (A) Sea surface fish Tilt angle: -5 ° to 10 ° (B) Midwater, bo...

Page 89 - Sea Surface Reflections; To reduce sea surface reflections, set the tilt angle to 5; Figure 12-3 Sea surface reflections; Wake; Figure 12-4 Wake appearance on the display

12-3 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 surfacereflections cover a large area as illustrated below. Sea surface Sea surfa...

Page 90 - False Echo by Sidelobe; Figure 12-5 Sidelobe echoes; Noise and Interference; Figure 12-6 Noise and interference

12-4 False Echo by Sidelobe An ultrasonic wave is emitted only in the direction set by theTILT lever, however there are some emissions outside the mainbeam. These are called sidelobes. The energy of the sidelobe isfairly weak but when the water is comparatively shallow and thebottom is rocky and har...

Page 91 - WARNINGS; Overvoltage Warning

13-1 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 checkthe ship’s mains volta...

Page 92 - Figure 13-1 How to manually raise the transducer

13-2 Reset Button Main Shaft Hull Unit Hand Crank Raise/Lower Control Box Breaker Figure 13-1 How to manually raise the transducer

Page 93 - SELF TESTS; Opening the Self Test Menu; Turn on the power while pressing and holding down the; Figure 14-1 SELF test menu

14-1 SELF TESTS The CSH-23F/24F has various self tests to check it for properoperation. If a test reveals equipment malfunction do not attemptto check inside the equipment. There are no user serviceableparts inside the equipment. Do not open the cover. There are no user-serviceableparts inside. Refe...

Page 94 - Self Test Description; Single test; Figure 14-2 Single test

14-2 Self Test Description Single test The ROM, RAM and other devices of the displayunit are checked once. Control is returned to theSELF TEST menu when the test is completed. Continuous test The devices of the display unit are checked con-tinuously. START UP TEST DCON DRAW DUAL ES SLICE PSIO PIF 10...

Page 95 - Figure 14-5 Color test; Figure 14-4 Panel test

14-3 Panel test This test checks the keys of the main and sub pan-els and the remote control box. Press and releaseeach key. Its on-screen location should display “1”when the key is pressed and “0” when released. Toescape from the test reset the power. Color test This test checks for proper display ...

Page 96 - Figure 14-6 Gray test

14-4 Gray test This test checks for screen distortion. To escape fromthe test reset the power. SIO test This test checks for proper communication betweenthe display unit and transmitter unit, and requires ajumper plug. To escape from the test reset the power. GRAY TEST , Q ¢, Q ¢ Figure 14-7 SIO tes...

Page 97 - Interface Unit CS-120A Self Test; Find DIP switch DP-1 on the lone circuit board. Turn switch

14-5 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 onthe digital display beside the DIP switch. 3. Turn the DIP switch off after completion of the ...

Page 99 - INPUT DATA SELECTION; Selection of Data at Interface Unit CS-120A; Figure 15-1 DIP switch settings in the interface unit

15-1 INPUT DATA SELECTION Selection of Data at Interface Unit CS-120A Nav data and fish data input from external equipment can beturned 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 S1 S2 Select ...

Page 100 - Setting Distances Between Net Sonde Transmitters; Figure 15-2 How to measure distances between transmitters; How to set net sonde transmitter distances; Press the MENU key while pressing and holding down; Figure 15-3 DATA SET menu

15-2 Setting Distances Between Net Sonde Transmitters To accurately display the net shooting mark and net sonde markposition, the distance between transmitters must be correctly set.This is done on the DATA SET menu. R1 R0 R2 R0: Length of net from its end to transmitter1 in meters.R1: Length of net...

Page 101 - MAINTENANCE; Display Unit Maintenance; Figure 16-1 Display unit maintenance

16-1 MAINTENANCE Do not open the cover. There are no user-serviceableparts inside. Refer any repairwork to a qualified technician. WARNING Display Unit Maintenance Keep magnets and cassette tapesaway from the display unit. Handle the equipment with care. Damage can cause corrosion. DISPLAY UNIT Clea...

Page 102 - Hull Unit Maintenance

16-2 Hull Unit Maintenance HULL UNIT Apply MOLYTONE grease#2 every six months. Dry dock ship and cleantransducer face yearly.Apply single coat of "MARINE STAR 20 Mod(Red-N)" anti-foulant totransducer face to keepmarine life off the transducer. Raise transducer and coat mainshaft with DAPHAEC...

Page 103 - MENU TREE; USER Menu

A-1 MENU TREE USER Menu Event Mark 1 Event Mark 2 Fish Mark On Track Data Text Window ES Window Range/Bearing Heading Mark Range Rings Bearing Scale Auto Scan Width w/Current Vec w/Current Vec w/Current Vec Register Save Save List Save Delete Initialize ON OFF ON OFF ON OFF Depth Temp OFF ON OFF Cur...

Page 104 - DATA SET Menu

A-2 DATA SET Menu Setting range: 200-1000 m ON OFF Setting range: 0-3000 m Setting range: 0-1000 m Execute Execute Execute Execute Execute Execute Execute CHANGE COLOR DATA SET MENU Sonar 1 Sonar 2 Echo Sounder Marks Menu Execute Execute NET SHOOT PLAN Net Diameter Tilt Interlock COLOR CURVE Sonar 1...

Page 106 - SYSTEM Menu

A-4 SYSTEM Menu 25log 30log 35log 40log FAR TVG Far TVG Curve Setting range: 0 to 3 SIGNAL PROCESS Smooth Echo - - - Rng Smooth Echo - - - Cir Delete Color Setting range: 0 to 3 Setting range: 1 to 10 SYSTEM MENU 1.3R 1.6R TM DSP TM Display Range 32 Cmps 360 ° True BRG READOUT Course Current Data Ev...

Page 109 - SPECIFICATIONS

SP-1 SPECIFICATIONS Model: CSH-23F/24F- M 1 (Freq.: 24 kHz) 2 (Freq.: 28 kHz)3 (Freq.: 32 kHz) 1. GENERAL (1) Range, TX Cycle, Pulselength c i s a B e g n a R ) m ( e g n a R e l c y C X T ) c e s ( h t g n e l e s l u P ) c e s m ( " F F O " r e t n e c f f O " N O " r e t n e c f f...

Page 110 - NOTE: Beamwidth depends on transmitter frequency.

SP-2 (3) Transceiver Transmitter High power MOS FET amplifier with 10-step power reduc-tion switch Receiver Low noise superheterodyne, continuously scanning beamforming, TVG, AGC, signal/processing, interference rejec-tor, horizontal vertical beam switching. (4) Beamwidth (-3 dB) and Tilt Angle TX B...

Page 113 - INDEX

IN-1 INDEX A AGC ................................................................ 3-32AGC .............................................................. 3-3AUDIO ........................................................... 7-5 B Beamwidth ...................................................... 3-6 C C...

Furuno CSH-23F/24F - Manual

Table of Contents:

Summary

Other Furuno Models