Furuno CSH-23/24 User Manual

COLOR SCANNING SONARMODELCSH-23/24

viiiSystem Configuration

A-2DATA SET MenuSetting range: 200-1000 mON OFFSetting range: 0-3000 mSetting range: 0-1000 mExecuteExecuteExecuteExecuteExecuteExecuteExecuteCH

A-3INIT SET/TEST MenuSetting range: 0°-359°INIT SET/TEST MENU HEADING ADJ Heading AdjustNMEA 4800, 9600 bpsNegative Positive Negative Positive

A-4SYSTEM Menu25log 30log 35log 40logFAR TVGFar TVG CurveSetting range: 0 to 3SIGNAL PROCESSSmooth Echo - - - RngSmooth Echo - - - CirDelete ColorSett

A-5ExecuteDEFAULTSDefaultsHIST DISPLAYH-Slice WidthPRT/STBD SampleNet Shoot MarkTarget LockON OFFON OFFON OFFON OFFON OFFON OFFINTE

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SP-1SPECIFICATIONSModel: CSH-23/24-M 1 (Freq.: 24 kHz) 4 (Freq: 40LkHz)2 (Freq.: 28 kHz) 5 (Freq: 40HkHz)3 (Freq.: 32 kHz) 6 (Freq: 45 kHz)1. GENERAL(

SP-2 (3) Transceiver Transmitter High power MOS FET amplifier with 10-step power reductionswitch Receiver Low noise superheterodyne, continuously scan

SP-3(6) Features Custom mode, interference rejector, afterglow, noise limiter,delete color, memory card (save and recall of picture, echo insideestim

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IN-1INDEXAAGC... 3-32AGC... 3-

1-1CONTROL DESCRIPTIONControl Layout on Display Unit and RemoteControl BoxSUB PANEL 2POWER TRANSDUCEROFF ONF1 F2 F3

1-2Main PanelPOWER TRANSDUCEROFF ONF1 F2 F3 - +NORM E/S HIS

1-3Control FunctionNORM, E/S, HIST(Mode keys)Select display mode: NORM, normal sonar picture; E/S, Echo soundercombination; HIST, Historical display.

1-4Sub Panel 1RECALLMEMOHISTE/SNORMF4F5F3F2F1ONOFFPOWERTRANSDUCERCARDREPLAYCOLORNETREPLAYTXHELPENDMENUFigure 1-3 Sub panel 1Sub panel 1 control descri

1-5Sub Panel 2 (data setting window)SIGNALDELETE MKTVG•TXESSONR•BEAMAUTOALM•AUDIONEAR7MEDIUM8FAR9CYCLE7PL8OUTPUT9TVG TX+ + + + + +– – – – – –hgOPERP-

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1-8Remote Control Box123DISP SELECTDATAEVENTTGT LOCKESTIMATE1NET COURSEFISHOFF-CENTTX1234FUNCTION5–+RANGE+–GAINSHOOTMEMOTGTSLICERECALLAUTOAUTOVERTSCAN

2-1OPERATIONAL OVERVIEWTurning the Power On/OffTurning the power onPress the ON switch on the main panel. The lamp above theswitch should light. If i

Your Local Agent/DealerYour Local Agent/Dealer9-52 Ashihara-cho,9-52 Ashihara-cho,Nishinomiya, JapanNishinomiya, JapanTelephone :Telephone : 0798-65-2

2-2Selecting a Display ModeThe CSH-23/24 provides three display modes: normal sonar pic-ture, echo sounder (E/S) combination, and history display com-

2-3Selecting a Display RangeOperate the RANGE control to select a display range. The se-lected range appears at the top of the screen.Setting the Til

2-4How to discriminate fish echoes from the seabedThe figure below illustrates how two fish schools a and b aredisplayed on the screen using three dif

2-5Tilt angle for surface fishSound emitted from the sonar transducer forms a circle-shapedbeam with a width of approximately 12 degrees in the verti

2-6Suitable tilt angleThe figure below illustrates the relationship among tilt angle,depth and detection range. Refer to it to find out the suitable t

2-7Adjusting the GainThe GAIN control adjusts receiver sensitivity (gain). Adjust itso fish echoes are clearly displayed with minimal noise on thescr

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3-1FINE TUNING THE PICTUREEliminating Unwanted Feeble EchoesEchoes from targets such as seabed and fish return to the trans-ducer in order of distance

3-24. When sea surface reflections or plankton layers disturb thepicture, decrease appropriate TVG option by one or two stepsby pressing – (minus) key

3-3Suppressing Seabed TailAGC (data setting window: SIGNAL, SIGNALPROCESS)The AGC functions to automatically reduce the receiver gainonly against stro

iiiiiiiiiiiiiiSAFETY INSTRUCTIONSWARNINGImmediately turn off the power at theswitchboard if water leaks into theequipment or something is dropped inth

3-4Suppressing Seabed and Sea Surface Reflections inShallow WatersData setting window: TVG•TX, OUTPUTIn shallow fishing grounds with hard or rocky bot

3-51. Turn off the TX switch and operate all on-board equipmentone by one while observing the picture.2. Run the boat at various speeds to check if th

3-6Setting F-shift (data setting window: SONR•BEAM,SONAR)If interference cannot be suppressed by the interference rejector(IR) or Tx cycle, change the

4-1MARKS AND DATAMarks, Data and Display ModeNormal display modeFigure 4-1 Marks and data appearing in the normal displaymode

4-2Figure 4-2 Marks and data appearing in the normal displaymode w/textFigure 4-3 Marks and data appearing in the echo sounderdisplay modeNormal displ

4-3Figure 4-4 Marks and data appearing in the history displaymodePermanently Displayed Marks and DataRange DataShows the range scale set with the RANG

4-4Mark/Data DescriptionShows own ship’s present position. The direction of the arrow showssh

4-5Range RingsThe range rings are inscribed at intervals of 1/4 of the range in use.Range ring data is also provided every two range rings. The range

4-6*Ship’s Track MarkWith gyrocompass or speed log connection, own ship’s track is plotted by a solid line. When the length of the line exceeds five t

4-7Mark DescriptionTarget Lock Mark The target lock mark automatically tracks the fish s

iiCAUTIONDo not exceed 18 knots when operatingthe equipment and do not exceed 16knots when lowering or raising thetransducer.The transducer may become

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5-1MENU OVERVIEWMany functions are carried out through the menu system, whichconsists of the USER, SYSTEM, DATA SET and INITIAL SET/DATA menus. The m

5-22. Operate the arrow keys in sub panel 1 to select a menu. Asyou move through the menu, each item, initially shown asblue on gray, reverses to gray

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5-5SYSTEM Menu DescriptionThe SYSTEM menu can be displayed by pressing MENU andc together.For help, press the HELP key.uneMmetInoitpircseDLANGISSSECO

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5-8DATA SET Menu DescriptionThe DATA SET menu can be displayed by pressingMENU + d. For help, press the HELP key.uneMmetInoitpircseDEVRUCROLOC1ranoS2r

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iiiTABLE OF CONTENTSFOREWORDA Word to CSH-23/24 Owners ...

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5-11INIT SET/TEST Menu DescriptionThe INIT SET/TEST menu can be display by pressing MENUand ON together.uneMmetInoitpircseDJDAGNIDAEHtsujdAgnidaeHllu

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6-1FUNCTION KEYSSimilar to the quick dialing function on a telephone, the fivefunction keys (F1–F3) on the main panel record control and menusettings

6-2FUNCTION KEYREGISTER1USER MENUCustomized settings are registered to FUNCTION keys.Select key number with↑ ↓ key and press MENU key.Press END key t

6-3Function 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

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7-1ADVANCED LEVEL OPERATIONFinding Fish School CenterWhen you want to find the center depth of a fish school, usethe auto tilt function, which automa

7-2Tracking a Fish School (target lock)Target lock, which requires speed and heading inputs, automati-cally tracks an important fish school so that yo

7-3Target lock mark appearanceThe size and thickness of the target lock mark indicates fish speedand tracking status, as shown below.MeaningTarget lo

ivFUNCTION KEYSProgramming the Function Keys ...6-1Replaying

7-44. 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

7-5Setting target lock conditions1. Open the sub panel 1.2. Press the [MENU] key while pressing and holding down thedown arrow key in sub panel 1.3.

7-6Description of target lock itemsTrackingMethodSets target lock function: target lock mark, fish or automatic.Track Echo ColorSets minimum echo sign

7-7Detecting Fish Schools AurallySometimes you may be preoccupied with other tasks and unableto concentrate on watching the sonar picture. In such ca

7-8The Fish AlarmThe fish alarm sounds an audible alarm when a fish echo abovea preset strength enters an alarm zone. You set parameters forthe fish a

7-9Relocating Fish School for Easy Observation1. Operate the trackball to place the trackball mark on the posi-tion where you want to relocate the ow

7-10Comparing of Fish School ConcentrationYou can get an estimate of the volume of two fish schools byusing the two ESTIMATE keys.1. Operate the track

7-11Measuring Fish School SpeedTo ensure a good haul, it is important to estimate the directionand speed of the fish school before shooting the net.

7-12Note 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

7-13Entering an event mark1. Set the trackball mark where you want to place an event mark(latest event mark).2. Press an EVENT key. The horizontal ra

vWARNINGSOvervoltage Warning ...12-1Unretract

7-14True Motion DisplayThe relative motion display places the own ship mark at the screencenter, and echoes from fish and the seabed move on the scree

7-15Plotting Net Location MarkBefore shooting net, you will decide the shoot timing consider-ing the water current direction, distance to fish school

7-16Observing Net BehaviorWith net sonde connection you can observe net behavior afterthe throwing of the net, on the echo sounder combination mode.Ac

7-17Target Slice DisplayUsing automatic tilting, the target slice mode displays the echoinside the estimate mark at several different tilt angles (de

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8-1PORT/STARBOARD, HORIZONTAL SLICEDISPLAYSThe port/starboard display or horizontal slice display may bedisplayed by pressing the [HIST] key. The dis

8-2Horizontal slice display120 degrees of the picture in the horizontal direction is shownfor a given depth (D) in the horizontal slice window at the

9-1MEMORY CARD OPERATIONSInitializing Memory CardsBefore you save information to a memory card it must be initial-ized (formatted).1. Press the MENU

9-2Saving the PictureYou can save either the whole screen or the echo inside the esti-mate mark to the internal memory or a memory card.evaSotataDdoht

9-3Saving Net Shooting DataHow net shooting data is savedThe unit starts accumulating net shooting data when the SHOOTkey is pressed. When net shooti

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9-4Replaying Saved DataWhole picture or echo inside estimate mark1. Press the RECALL key (on the main panel).2. Press the right or left arrow key in s

10-1TURNING MARKS, DATA ON/OFFYou can turn marks and data on or off through the data settingwindow or the USER menu.Turning marks on/off through the

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11-1INTERPRETING THE DISPLAYSeabed EchoesWhen the tilt angle is widened, the seabed echo illustrated be-low will appear on the display. When the tilt

11-2Fish SchoolsA 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 f

11-3Sea Surface ReflectionsTo reduce sea surface reflections, set the tilt angle to 5° or higher,so the upper edge of the sonar beam does not hit the

11-4False Echo by SidelobeAn ultrasonic wave is emitted only in the direction set by theTILT lever, however there are some emissions outside the mainb

12-1WARNINGSOvervoltage WarningIf the input voltage to this unit rises above 125 VAC, the over-voltage detection circuit activates, an alarm sounds a

12-2Main ShaftHull UnitHand CrankBreakerRaise/Lower Control BoxReset ButtonFigure 12-1 How to manually raise the transducer

13-1SELF TESTSThe CSH-23/24 has various self tests to check it for proper op-eration. If a test reveals equipment malfunction do not attemptto check

viiFOREWORDA Word to CSH-23/24 OwnersCongratulations on your choice of the FURUNO CSH-23/24 Color Scanning Sonar. We areconfident you will see why th

13-2Self Test DescriptionSingle testThe ROM, RAM and other devices of the displayunit are checked once. Control is returned to theSELF TEST menu when

13-3Panel testThis test checks the keys of the main and sub pan-els and the remote control box. Press and releaseeach key. Its on-screen location sho

13-4Gray testThis test checks for screen distortion. To escape fromthe test reset the power.SIO testThis test checks for proper communication betweent

13-5Interface Unit CS-120A Self Test1. Open the cover of the interface unit.2. Find DIP switch DP-1 on the lone circuit board. Turn switch#6 on to st

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14-1INPUT DATA SELECTIONSelection of Data at Interface Unit CS-120ANav data and fish data input from external equipment can beturned on or off at DIP

14-2Setting Distances Between Net Sonde TransmittersTo accurately display the net shooting mark and net sonde markposition, the distance between trans

15-1MAINTENANCEDo not open the cover.There are no user-serviceableparts inside. Refer any repairwork to a qualified technician.WARNINGDisplay Unit Ma

15-2Hull Unit MaintenanceHULL UNITApply MOLYTONE grease#2 every six months.Dry dock ship and cleantransducer face yearly.Apply single coat of "MA

A-1MENU TREEUSER MenuEvent Mark 1Event Mark 2Fish MarkOn Track DataText WindowES WindowRange/BearingHeading MarkRange RingsBearing ScaleAuto Scan Wid