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Furuno CH-250 User's Manual

1. 2 7 vertical fan mode 3 9 Range echo sounder mode 4 3 horizontal 2 3 presetting for echo sounder mode 5 17 presetting for horizontal mode 5 15 presetting for vertical fan mode 5 16 track range 1 5 18 vertical fan 3 3 RANGE control echo sounder mode 4 3 horizontal 2 3 vertical fan mode 3 3 Range marker echo sounder mode 4 7 Remote controller 1 2 Resolution color echosounder mode 4 11 horizontal 2 18 vertical fan mode 3 12 S SECTOR control horizontal 2 4 vertical fan 3 5 SHORT CUT 5 7 Signal level re tnn 5 3 Signal 2 11 Speed alarm 5 13 IN 2 2 the ih d 5 12 Sweep indicator 5 13 SYS MENU uere eis 5 9 System configuration vii SYSTEM SETTI
2. 5 4 short cut function sssssss 5 7 D Default 5 5 22 Demonstration mode 5 21 Depth marker horizontal mode 2 7 Depth marker vertical fan mode 3 9 Diagri SliG5 ccce erroe e ect eben acie dod 6 6 Display modes pit ooxedect 1 6 E Emphasis 5 11 Error Messages 6 5 ES IGI DRE Ara 4 10 ETA marker eee ees pedi 5 11 EVENT key echo sounder mode 4 5 horizontal 2 6 vertical fan 3 8 Event marker deleting from echo sounder mode 4 6 deleting from horizontal mode 2 7 deleting from vertical fan mode 3 9 inscribing from echo sounder mode 4 6 inscribing from horizontal mode 2 6 inscribing from vertical fan mode 3 8 output on off Pensa rudes 5 11 F FAST SCAN key echo sounder 4 4 horizontal 2 5 vertical fan 3 7 FULL HALF key horizontal 2 4 vertical fan 3 5 Fuse 6 3 G Gain adjust
3. V SELECT P CHANGE MENU END COM2 menu 5 2 2 COM2 menu description DELETING TRACK Choose ON to delete all ship s track from horizontal and horizontal video plotter displays WHITE MARKER Displays desired echo in white It is useful for discriminating bottom fish from the bottom echo The setting range for the 8 color display is OFF 1 7 and for the 16 color display OFF 1 15 SIG LEVEL Refer to page 2 17 COLOR Chooses 8 or 16 color display BKGD COLOR Chooses color of background text and menu Three choices are available and these are shown in the table below BKGD COLOR Background Tex Mem 5 3 Short cut Menu Preset Menu These menus program the CUSTOM MODE keys 1 2 and 3 and one of the menus appears according to the setting of CUSTOM KEY on the SYSTEM SETTING 1 menu Short cut key One touch activation of corresponding dialog box This is the default setting Preset key One touch setup of mode sector train range tilt and speed controls Below are the default settings for PRESET ow pw wm qp _ Default range for 60 kHz transducer Default range changes with transducer 5 3 1 Selecting short cut or preset 1 Press the MENU key to open the menu 2 Press A to select MENU and then press P to select SYS COM1 COM2 HORZ VERT ES PRESET GO TO SYS MENU A W sELECT 4 b cHANGE MENU END Figure 5 2 Display for opening system menu
4. 1 4 1 5 Adjusting Screen Brilliance Panel Dimmer 1 5 1 6 Selecting a DISplay ei ia tact Cox M 1 6 Taf Adjusting the sei docta test erent cere 1 7 1 8 Basic Menu Operation n nan ORE OG ERE LA SUR RR A RR UR RR NR Nn ER ARRA NERA 1 7 2 HORIZONTAL MODE 2 9 dd did exouuuucu cuu cuuuocuousoccceuceucs 2 1 2 1 Operational OV6rviGW iron den inr oer er one nod o Or o e va QU eee a gara Pat Egan ak sexes 2 1 2 2 Typical Horizontal Mode 5 2 2 2 9 Selecung lle RANGE ie eo D Eo pl d ee See 2 3 2 4 Selecting Sector Width t NS 2 4 2 5 S lecting Train Center sucio tors DO ed Gg ei ee e A opi edet ati ee ed ee ab eure 2 5 2 6 selecting the TIlt Angle cei qe ved GRA f Ga ee dr ME ER gen 2 5 2 f selecting ihe Training Sp8ed c uei eral Feb ees Pea deb ed 2 10 2 8 Finding Echo Position with the GUESOFP citis 2 10 2 9 Event MarKer o roh piro Cen ce Eder aps dies tud LU epu e elevated 2 11 2 10 Depth and Horizontal Range Markers 2 12 2 1T Adjusting the PICS ss sort ie ses tone docte t orto iode eps 2 13 2 12 Vertical Menu 2 18 2 13 Horizontal Menu OvervieW whe diit dbi tuas 2 22 2 14 In
5. eeeeeee 3 12 WwW White marker teretes 5 3
6. 2 12 Target Lock Three types of target lock modes are available Manual reverse The transducer train direction is reserves manually This is the default setting and is available in the horizontal and vertical fan modes Position Tracks stationary position Such as a reef using position data from a navigator Available in the horizontal mode only Echo Tracks fish echo either manually or automatically Available in the horizontal mode only 2 12 1 Setting target lock mode Bog qe Press the MENU key to open the menu Press A to select MENU and then press 4 or gt to select the HORZ menu Press A or v to select TARGET KEY Press to show following dialog box TARGET KEY POS ECHO Press 4 or to select option desired Press the MENU key to register your selection and close the menu 2 12 2 Manual reserve mode The transducer train direction is reversed manually thereby emphasizing possible fish echoes Note This function is inoperative in the echo sounder mode In the vertical fan mode the manual reverse mode is automatically selected regardless of the setting in paragraph 2 12 1 To activate the manual reserve mode 1 2 Select REVERSE following the procedure in paragraph 2 12 1 Press the TARGET key to reverse the transducer train direction when a fish school appears REVERSE momentarily appears at the screen top when the key is pressed and then the transducer train
7. Note To restore default color settings select DEFAULT SETTING press PX to select YES and press the MENU key A few beeps sound while the default colors are being restored and then normal operation is restored 5 19 5 4 7 Language Menu language can selected from among the languages shown in the Language menu and the default language is English LANGUAGE LANGUAGE JAPANESE ENGLISH FRANCAIS ESPANOL ITALIANO PORTUGUES DANSK NORSK SVENSK THAI Figure 5 18 Language menu 5 4 8 System backup User settings can be backed up with the menu item SYSTEM BACKUP SYSTEM BACKUP ARE YOU SURE YES NOTE OVERWRITE PREVIOUS BACKUP DATA Figure 5 19 System backup menu 5 4 9 Loading backup data System data may be loaded from the LOAD BACKUP DATA menu LOAD BACKUP DATA ARE YOU SURE YES NOTE OVERWRITE CURRENT SETTINGS Figure 5 20 Load backup data menu 5 20 5 4 10 Transducer frequency adjustment If the CH 250 is receiving interference from a video sounder or other sonar on board your ship adjust the frequency of the CH 250 s transducer to reduce the interference TX FREQ ADJUST FREQ SHIFT kHz 57 63 kHz 4 b CHANGE MENU END Figure 5 21 TX frequency adjustment menu 5 4 11 Demonstration mode The demonstration mode provides a simulated sonar picture which helps you become acquainted with how your sonar works Connection of the transducer is not required All contr
8. 3 Press v to select GO TO SYS MENU 4 Press 4 to select YES SYSTEM MENU SYSTEM SETTING gt RANGE SONAR MODE RANGE VERTICAL MODE RANGE E S MODE RANGE TRACK MODE COLOR PALETTE LANGUAGE SYSTEM BACKUP LOAD BACKUP DATA HEADING OFFSET DRAFT OFFSET ADJ MOTION SENSOR TX FREQ ADJUST TEST TEST PATTERN DEMO MODE DEFAULT AV SELECT gt MENU DISPLAY MENU END Figure 5 3 System menu 5 Press to open the SYSTEM SETTING menu SYSTEM SETTING 1 POSITION 5 SHIP S LOP CURSOR L L TRACK OFF CURRENT DATA FLOW FROM FLOW TO HEADING INDICATION TRUE 72 NORTH MARK OFF ON CSE DATA NAV GYRO NAV DATA LoranC LoranA DR DECCA OTHERS TVG CORRECTION 1 2 1 1 UNIT ft fa HIRO P B TEMP oF TARGET L L OFF ON CUSTOM KEY SHORT CUT KEY EMPHASIS MODE OFF RED ETA MARK OFF 10sec 30sec dimin 3min 6min W sELECT 4 CHANGE MENU END Figure 5 4 System setting 1 menu 6 Press or v to select CUSTOM KEY 7 Press 4 or P to select PRESET KEY or SHORT CUT KEY as desired 8 Press the MENU key twice to register your selection and close the menu 5 3 2 Preset key 1 Select PRESET KEY following the procedure in paragraph 5 2 1 on page 5 3 2 Press the MENU key to open the menu 3 Press A to select MENU and then press 4 or to select PRESET MENU COM1 COM2 HORZ VERT ES iz SYS MODE SECTOR TRAIN RANGE TILT SPEED PRESENT O 360 0
9. RANGE 200 TILT 30 SPEED FAST CUSTOM2 MODE HORIZONTAL SECTOR 360 TRAIN 0 RANGE 2000 TILT 30 SPEED FAST CUSTOMS MODE VERTICAL SECTOR 180 TRAIN 90 RANGE m 120 TILT 90 SPEED FAST M 1 M 2 CONTINUED FROM PREVIOUS PAGE es SYSTEM menu SYSTEM SETTING SYSTEM SETTING 1 F POSITION SHIP S L L SHIP S LOP CURSOR L L TRACK OFF ON F CURRENT DATA OFF FLOW FROM FLOW TO m HEADING INDICATION TRUE AZ PF NORTH MARK OFF ON CSE DATA NAV GYRO M NAV DATA GPS LoranC LoranA DR DECCA OTHERS TVG CORRECTION OFF 1 2 1 1 m UNIT m ft fa HIRO P B TEMP C F TARGET L L OFF ON CUSTOM KEY PRESET KEY SHORT CUT KEY EMPHASIS MODE OFF NORMAL RED MARK OFF 10sec 30sec 1min 3min 6min SYSTEM SETTING 2 STABILIZER OFF ON AUTO RETRACTION OFF 5 15kt SPEED ALARM MESSAGE OFF 15kt 20kt SWEEP INDICATOR DOT LINE SOUNDOME SERIAL NO 999 1000 DEFAULT SETTING NO YES RANGE SONAR MODE all default ranges 60 kHz min range m 10 ft 40 fa p b hiro 5 max range m 1600 ft 5000 fa 800 P B Hiro 1000 88 KHz min range m 10 ft 40 fa P B Hiro 5 max range m 1200 ft 4000 fa 700 P B Hiro 800 150 KHz min range m 10 ft 40 fa P B Hiro 5 max range m 1000 ft 3500 fa 700 P B Hiro 700 180 KHz min range m 10
10. When the narrow sounding beam 6 is selected 60 transmissions are required 12 When high speed training is to complete the full circle selected Figure 2 20 How the horizontal mode picture is painted 2 23 2 14 2 Sample echo displays Bottom echoes When the tilt angle is changed the bottom echo illustrated below will appear on the display When the tilt is decrease toward 0 the bottom trace becomes winder and weaker By observing the bottom condition on the display the skipper can prevent net damage A Flat bottom Tilt angle 10 to 15 Decreased tilt angle ue d Only half of UTEYJ vertical beam width captures the bottom B Flat bottom Tilt angle 20 or more Bottom is displayed narrower and in stronger colors when compared to A C Sloping bottom Tilt angle 20 or more Shallow bottom is displayed in a strong color and with a short tail Bottom The deeper sloping bottom echo is displayed in a weak color and with a long tail Figure 2 21 Bottom echoes 2 24 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 A Sea surface fish Tilt angle 0 to 10 Bottom echo not displayed because of decreased tilt angle Sea surface reflections are present Fish
11. s speed data is erroneous 5 12 SPEED ALARM MESSAGE Turn on default setting to display speed alarm message and sound the audio alarm when ship s speed exceeds allowable speed for a given transducer operation The audio alarm can be silenced with the R B key J pressed to lower transducer Message 1 appears Reduce speed below 15 kts to restore Speed above 15 kts normal operation Transducer being lowered Speed over 15 kts Message 1 appears and lowering continues Transducer lowered Message 2 appears accompanied with the aural alarm Reduce Speed above 20 kts i the speed below 20 kts to restore normal operation pressed to raise transducer Message 1 appears accompanied with the aural alarm Transducer is not raised Reduce the speed below 15 kts to erase the message and restore normal operation Then press 1 again to raise the transducer Speed above 15 kts Transducer being raised Message 1 appears and raising continues Reduce the speed Speed above 15 kts below 15 kts to erase the message and restore normal operation SHIPS SPEED EXCEEDS 15 kt SLOW DOWN UNDER 15 kt WHEN TRANSDUCER REMAINS LOWERED REDUCE SHIP S SPEED AND PRESS TO RETRACT IT MOVING TRANSDUCER UNIT SIPENCE ALARM PRESS R B KEY TO SILENCE ALARM Message 1 Message 2 SWEEP INDICATOR Shows train position in the horizontal mode and tilt
12. Do not paint the transducer face Loss of sensitivity will result Do not use plastic solvents to clean the transducer They can damage the transducer 6 5 Fuse Replacement The fuse in the hull and transceiver units protect them from overvoltage equipment fault and reverse polarity of the ship s mains If the power cannot be applied first check the power cable between the transceiver unit and the display unit If the power still cannot be applied the fuse in the transceiver unit may have blown Have a suitably qualified technician check the fuse A CAUTION Use the proper fuse Use of a wrong fuse can cause fire or equipment damage 6 6 Troubleshooting The table below provides common symptoms of equipment troubles and the means to rectify them Check Remedy Cannot turn on the e Check cable between transceiver unit and display unit power e Check ship s mains e Have a suitably qualified technician check the fuse in the transceiver unit Bottom echo becomes e Rough seas Distance to the bottom changes due to rolling and pitching irregular Long range selected Transmission period is longer so ship s pitching and rolling are apt to affect detection of echo Weak echo Output power set to minimum Set to maximum on the COM1 menu E TVG Readjust TVG on the appropriate menu HORZ VERT Note that readjustment of TVG is necessary when gain is adjusted Somewhat strange SET key setting too low
13. Increase brightness with BRILL key color Picture contains noise e Equipment not grounded properly Check equipment ground Power cable is too close to the signal cable Relocate power cable or signal cable e Debris may be on sea surface Reject unwanted noise with the interference rejector on the COM1 menu Picture does not e Problem in tilt mechanism or control line Contact a FURUNO agent or change when tilt angle dealer for advice is changed Bottom is not displayed in vertical fan picture when bottom is flat 6 7 Error Messages The table below shows the error messages which may appear on the display All error messages are accompanied by an audio alarm which you may silence with the R B key HULL UNIT POWER OFF CHECK BREAKER AND FUSE PRESS R B KEY TO SILENCE ALARM RAISE LOWER FUNCTION HAS NOT BEEN COMPLETED CHECK IF THE BREAKER AT THE HULL UNIT HAS BEEN ACTIVATED MAXIMUM ALLOWABLE SPEED IS 15 KNOTS WHILE SOUNDOME IS BEING RETRACTED PRESS R B KEY TO SILENCE ALARM Hull unit is not powered Silence the audio alarm with the R B key and then turn on the hull unit to erase the message and restore normal operation You attempted to raise or lower the transducer when the ship s speed is above 15 knots or the breaker on the hull unit tripped Check the breaker and lower the ship s speed below 15 knots to execute function desired Frequency Code Error FREQUENCY CODE ERROR CHE
14. e The ROM RAM VRM NMEA and PANEL CPU are checked for proper operation and the results displayed as OK or NG No Good For NG contact a FURUNO agent or dealer for advice e The TX FREQUENCY of the transducer is measured and displayed e TRAIN shows a figure between 355 359 if normal NG appears in case of train error e TEST COUNT shows the number of times the test has been consecutively executed e At the bottom of the screen there are two major groups of zeroes 0 and they represent the keys and controls on the control panel and remote controller Press a key and its on screen location shows 1 while the key is pressed and 0 when it is released Operate a control and its on screen location changes as below When the GAIN control is operated the panel dimmer increases or decreases with adjustment of the control GAIN control Shows 0 127 Other controls Shows 0 19 To quit the test press the MENU key three times 6 9 Test Pattern A test pattern can be displayed to check for proper display of colors 1 2 3 4 5 Press the MENU key to open the menu Press A to select MENU and then press P to select SYS Press v to select GO TO SYS MENU Press 4 to select YES Select TEST PATTERN and press P to display the test pattern Press again to change the test pattern The pattern changes in the sequence shown below with each press of P 16 tones 16 tones of RED of GREEN of BLUE Figure 6 3 Test pat
15. make it a habit to retract the transducer before turning off the power Note 2 After changing settings wait at least one minute before turning off the equipment to allow the equipment to memorize settings and start up with them at the next powering of the equipment No harm will result to the equipment if this not done 1 3 1 4 Raising Lowering the Transducer 1 4 4 Lowering the transducer With the boat at the fishing ground press the J switch to lower the transducer The lamp above the switch blinks while the transducer is being lowered and lights when it is completely lowered The down arrow of the transducer status indicator at the top right corner of the display is filled when the transducer is completely lowered A CAUTION Do not exceed 20 knots when operating the equipment and do not exceed 15 knots when lowering or raising the transducer The transducer may become damaged 1 4 2 Raising the transducer Press the T switch to raise the transducer The lamp above the switch blinks while the transducer is being raised and lights steadily when it is fully raised The up arrow of the transducer status indicator at the top right corner of the display is filled when the transducer is fully retracted Note 1 With speed input the transducer can be raised automatically when the ship s speed exceeds a preset speed between 5 and 15 knots If speed data is erroneous the transducer may be raised at a speed different from the
16. school Sea surface reflections B Midwater bottom fish Tilt angle 30 or more Fish echo which appears before bottom can be detected Bottom Fish school Large midwater fish school is present Tilt angle 0 to 20 Fish echo which appears together with or after bottom can be detected Fish school Bottom When the tilt angle is shallow the reflection echo from bottom is weak and the fish echo which appears from bottom is easy to find Figure 2 22 Fish schools 2 25 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 decreased tilt angle is used sea surface reflections cover a large area as illustrated below Tilt angle indication Sea surface reflections Figure 2 23 Sea surface reflections Wake A wake produced by own ship or another ship can be a strong reflecting object when a decreased tilt angle is used As the wake appears as a thick continuous line it can be easily distinguishes from a fish school A wake contains many air bubbles which attenuate ultrasonic energy making it difficult to sound beyond the wake Other cdd SEXO NX S 4 M Own ship Tx Own ship s screw noise N Wake produced by other ship Own ship s wake Own ship s produced when screw noise own ship turned Figure 2 24 Wake 2 26 Sidelob
17. 1 3 1 4 Range factory setting 2 DISPLAY CONTROL UNIT 2 1 2 2 2 3 2 4 2 5 2 6 GENERAL Display System Transmit Frequency Output Power CH 250 10 4 inch Color LCD 60 88 or 150 kHz selected 0 8 kW 60 kHz to 1 2 kW 150 kHz Detection Range m H horizontal mode V vertical fan mode 60 kHz V 10 120 160 500 250 800 400 14 1600 600 NE 12 ie Display Picture Color Display Mode Combination Display 88 kHz 150 kH H 10 100 200 100 160 100 250 300 400 500 600 Alphanumerical Indication Data Indication 2 V 120 160 200 250 400 250 300 500 300 400 600 400 500 800 500 600 600 10 4 inch color LCD 640 x 480 dots Echo 16 or 8 colors echo Back ground 3 colors selected user setting available Horizontal Normal Expanded Vertical fan Left right or top bottom position Echo sounder Plotter Vertical fan Strata History Range Sensitivity TVG Tilt angle Interference rejection L L Own ship or cursor Depth Bearing Ship s speed Water current vector Track Water temperature External IEC 61162 data required SP 1 E1316S01H 2 7 Marker 2 8 2 9 2 10 2 11 2 12 2 13 2 14 Indication Unit Audio Monitor Event Mark Hue Red Color Enhancement Arrival Mark Range and Bearing to Waypoint Meter feet fathom P B 2 W output 4 ohms Freq 1 0 kHz external speaker required 5 points
18. 1 on page 5 3 2 Press the MENU key to open the menu 3 Press A to select MENU and then press 4 or gt to select SHORT CUT COM1 COM2 HORZ VERT ES SYS VOLUME DELTRACK AUTOTILT BKGD SIGLEVEL CLUTTER RES COLOR WHITE MARKER VER SEARCH VOLUME DELTRACK AUTOTILT BKGD SIGLEVEL CLUTTER RES COLOR WHITE MARKER VER SEARCH VOLUME EL TRACK AUTOTILT BKGD SIGLEVEL CLUTTER RES COLOR WHITE MARKER SELECT FUNCTION TO BE ALLOCATED TO EACH CUSTOM KEY CUSTOM KEY MAY BE USED AS A PRESET KEY W sELECT 4 b cHANGE END Figure 5 6 SHORT CUT menu 4 Press A or Y to select key to preset For example select KEY 1 5 Press 4 or P to select item 6 Press the MENU key to finish Activating a short cut key 1 Press a CUSTOM MODE key and the dialog box programmed for the custom key pressed appears The dialog box below is for CLUTTER HORZ CLUTTER HORZ Ej 2 2 Press 4 or P to select option desired 3 Press the MENU key to close the dialog box VERTICAL SEARCH FUNCTION When you find a target of interest on the horizontal display simply press the function key programmed for VER SEARCH to get a cross sectional view of the vertical plane This mode is useful for evaluating fish school concentration and location of the targeted fish school or for navigation purposes Fish School The vertical search picture is drawn using the following specifications
19. Gain setting TVG LEVEL 4 0 TVG level DISTANCE 200m em distance settings Horizontal COLOR iarer Color bar Requires appropriate sensor Vertical range scale Sector center indicator Event marker Horizontal range marker Sweep indicator Shows tilt angle in vertical fan mode Figure 3 2 Typical vertical fan mode display 3 3 Selecting the Range The RANGE control selects the detection display range in 15 settings Select the range according to either the fish species being searched or the depth desired Each time the control is operated the newly selected range briefly appears in large characters at the screen top Range is permanently displayed at the top right hand corner of the screen Normally the range is set so that the bottom is traced at the lower part of the screen like an echo sounder Surface m Bottom Figure 3 3 Range concept Default vertical fan mode range settings Unit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Meters 10 20 30 40 60 80 100 120 160 200 250 300 400 500 600 Feet 30 60 90 120 150 200 250 300 400 500 600 800 1000 1500 2000 Note 1 Unit of range measurement may be selected for meters feet fathoms passi braza or Hiro Japanese with UNIT on the SYSTEM SETTING 1 menu For details see page 5 10 Note 2 Ranges
20. Horizontal range Same as set on horizontal mode Vertical range Same as set on horizontal mode Train marker Train angle at the moment function key is turned on Vertical scan display range 0 90 degrees own ship position shifted leftward 5 4 SYS Menu This menu provides items which may be set according to operator s preference A demonstration mode is provided to acquaint you with the many functions of this equipment and it may be used without connection of the transducer 1 2 3 4 ee Press the MENU key to open the menu Press A to select MENU and then press P to select SYS Press v to select GO TO SYS MENU Press 4 to select YES SYSTEM MENU SYSTEM SETTING gt RANGE SONAR MODE RANGE VERTICAL MODE RANGE E S MODE RANGE TRACK MODE COLOR PALETTE LANGUAGE SYSTEM BACKUP LOAD BACKUP DATA ee lt lt lt 1 1 HEADING OFFSET DRAFT OFFSET Adjusted at installation MOTION SENSOR See installation manual t See Chapter 6 DEMO MODE DEFAULT A V SELECT gt MENU DISPLAY MENU END Figure 5 7 System menu Press A or Y to select item desired Press 4 or to open corresponding dialog box Press 4 P to select option Press the MENU key twice to register your selection and close the menu SYSTEM SETTING 1 menu A Press P Press A t
21. Unit 15 C to 55 C Soundome 0 C to 35 C 95 Display Control unit IPX5 Transceiver unit Hull unit IPX2 Panel N3 0 Chassis 2 5GY5 1 5 N3 0 SP 3 E1316S01H This page is intentionally left blank A e aetates iubeat I cud ete aste DA ERR 5 2 A scope 4 9 Automatic tiltsa iriaren nariais 2 18 B Background oolor 5 2 Backup data loading eiere ME E 5 20 SAVING 5 20 BRILL COMTO 1 5 C Clutter echosounder mode 4 11 horizontal 2 18 vertical fan 3 13 Color palette 5 19 Colors background u 5 3 display crc te nnns 5 3 CONM 13DGDU c dedu Den o oet des dta 5 1 CONT lentis uso vases arte reete rena 5 3 Control 1 1 COLUISQ Ula 5 11 Current tide 5 10 Cursor data echo sounder mode 4 5 horizontal 4 2 5 vertical fan mode 3 7 Custom key niente 5 11 CUSTOM MODE keys preset function 5 6 selection of function
22. When depth data is input from Typical Horizontal Mode Display Tilt angle indicator Indicates transducer tilt angle Horizontal max range 30 external equipment the depth marker shifts according to depth data If the depth data is greater than the horizontal range the Range and bearing markers i iti Vertical max depth marker shifts to lowest position eb x 25 Demonstration Sector marker r Tilt angle mode Interference Cursor data Train indicator r Range rejector S Depth marker See note at left Tilt angle 1 DEMO Transducer status indicator 716 Ao e A R 40 m Filled arrow Respective action 113 T 40 completed Blinking arrow Action in progress Bottom echo 1r ZZ Target lock indicator Bearing marker Fish ech 34 12 343 EP x ish echo 134 34 213 W IT faut n latitude ETA marker csE 357 yo O Own ship marker SPD 9 9kt Course speed R k j DEP 35m Depth ange maner TMP 12 3 C water temperature Event marker 1 CUR 11 0 Tide direction 2 0kt tide speed GAIN 5 3 Gain setting TVG LEVEL 4 0 TVG level DISTANCE 200 m iit COLOR distance settings B7 TUNE Color bar Requires appropriate Event marker data Ship s Range and bearing se
23. angle in the vertical fan mode with a line or a dot See the illustration on page 2 2 and 3 2 SOUNDOME SER NO Set according to serial no of soundome Note that the setting is not cleared when default settings are restored 5 13 DEFAULT SETTING Select YES and press the MENU key to restore all default system menu settings Several beeps sound while default settings are being restored and then normal operation is restored FACTORY SETTING ARE YOU SURE YES NOTE ALL THE SYSTEM SETTING WILL BE CHANGED TO FACTORY SETTING CHANGE MENU END Figure 5 12 FACTORY SETTING menu 5 14 5 4 2 Sonar horizontal mode range settings The user may preset horizontal mode ranges as desired 1 Select RANGE SONAR MODE at the SYS menu and then press P RANGE SONAR MODE 10 1600m 2 3 4 2 5 6 7 8 9 RN oJ ojo TRACK DISP 500 500 5000 DEFAULT SETTING YES A W SELECT 4 CHANGE MENU END Figure 5 13 Range sonar mode menu 2 Press A or Y to select range number desired 3 Press 4 or gt to set range The setting range depends on the transducer used The figure above shows the default settings for the 60 kHz transducer 4 To set the range of the video plotter display press to select TRACK DISP and set range with 4 or P 5 To restore default horizontal mode range
24. below 3 17 This page intentionally left blank 3 18 4 ECHO SOUNDER MODE 4 1 Operational Overview The figure below shows the typical echo sounder mode operating sequence 8 Set tilt angle 7 Select display sector 5 Set range turn on 1 Turn on the power t 6 Adjust gain display etc 2 A i c m 22 JO O O 2 ud 6 GAIN SECTOR CRAIN _ CRANGE Y ea Og OB ca i Ge TaRGET MENU Ce 383 OS Oe DISPLAY MODE MODE Va 2 Lower the transducer 4 Select echo sounder 10 Measure range to fish mode school with cursor 3 Adjust screen brilliance 9 Set picture advance speed Figure 4 1 Control panel 4 2 Press the key to display the echo sounder picture Interference rejector ON Cursor position Minute marker Bearing indicator Shows train direction Tilt angle indicator Typical Echo Sounder Display Shows tilt angle of transducer Heading 7 LALELE Range r Tilt angle Transducer status indication Fish echo Cursor Range Bottom echo Position in latitude longitude Course speed 34 12 343 N 134 34 243 W CSE 35
25. can only be inscribes from the main window Note 3 Event marker position van be output to external equipment and marked on the display of the external equipment Each press of the EVENT key outputs event marker position For details see TARGET L L on page 5 11 Note 4 The tilt angle must be less than 75 degrees to use this feature 2 9 1 Inscribing the event marker 1 Operate the Omnipad to place the cursor on the location desired for an event marker 2 Press the EVENT key to inscribe the event marker Event marker data appears at the bottom left hand corner Latest event marker Display area Previous event marker NAV DATA To delete all event markers place the cursor outside the display area and press the Event marker data Horizontal range B Bearing EVENT key Figure 2 11 How to use the event marker 2 10 2 9 2 Deleting all event markers All event markers can be erased from the screen as follows 1 Operate the Omnipad to place the cursor outside the display area 2 Press the EVENT key to show the following dialog box Do the next step within four seconds otherwise the dialog box will be erased DELETE EVENT MARK YES 3 Press P to select YES and press the MENU key All event markers are erased from the screen 2 10 Depth and Horizontal Range Markers The horizontal range depth and bearing to a fish school can be measured by using the range and bea
26. ft 40 fa P B Hiro 5 max range m 800 ft 2500 fa 500 P B 600 Hiro 700 240 KHz min range m 10 ft 30 fa P B Hiro 5 max range m 600 ft 2000 fa P B Hiro 400 RANGE VER MODE all default ranges m 10 20 30 40 60 80 100 120 160 200 250 300 400 500 600 ft 30 60 90 120 150 200 250 300 400 500 600 800 1000 1500 2000 fa P B Hiro 10 20 30 40 50 60 80 100 120 140 160 200 250 300 400 RANGE E S MODE all default ranges m 10 20 30 40 60 80 100 120 160 200 250 300 400 500 600 ft 30 60 90 120 150 200 250 300 400 500 600 800 1000 1500 2000 fa P B Hiro 10 20 30 40 50 60 80 100 120 140 160 200 250 300 400 RANGE TRACK MODE all default ranges m 500 1000 2000 4000 8000 ft 1000 2000 5000 10 000 20 000 fa P B Hiro 200 500 1000 2000 4000 COLOR PALETTE Adjusts color of echoes text and background LANGUAGE JAPANESE ENGLISH FRANCAIS ESPANOL ITALIANO PORTUGUES DANSK NORSK SVENSK THAI SYSTEM BACKUP NO YES LOAD BACKUP DATA NO YES HEADING OFFSET DRAFT OFFSET 180 180 0 0 60 m 0 ADJ MOTION SENSOR ROLL ANGLE 10 10 0 PITCH ANGLE 10 10 0 TX FREQ ADJUST 171 189 kHz 180 kHz TEST Checks equipment for proper operation TEST PATTERN Displays series of test patterns DEMO MODE OFF ON DEFAULT NO YES SPECIFICATIONS OF 10 4 INCH COLOR LCD SEARCHLIGHT SONAR 1 1 1 1 2
27. may be freely preset as desired For details see page 5 16 3 4 Selecting Train Center The TRAIN control determines the bearing of the vertical fan beam from 0 to 180 Bearing of beam position can be found with the train indicator 0 360 gt 6 gt 12 gt 18 gt 180 Train Indicator Train of Vertical Fan Beam indicator KX Figure 3 4 Train indicator Train 0 Train 90 Train 180 FoREG AFT e Figure 3 5 Train indicator and display 3 5 Selecting Display Sector Sector means the width of the transducer training from 6 to 180 Sector Shown 24 Figure 3 6 Sector The SECTOR control selects the training area among the sixteen positions shown in the table below Clockwise rotation of the control increases the sector width counterclockwise rotation decreases it 1 2 3 4 5 6 7 8 M 15 16 Sector with 6 12 24 36 48 6 722 8 9 108 120 12 14 156 168 One touch selection of 180 sector 1 Press the FULL HALF key A half circle display of 180 is presented 2 Press the FULL HALF key again and a 120 sector display is presented Note Operating the SECTOR control between steps 1 and 2 in the procedure above displays the 180 sector at the next pressing of the FULL HALF key Sector set with SEC
28. measure the range to a target echo fish school bottom etc 1 Operate the Omnipad to place the cursor on the location desired 2 Press the R B key to display the range marker The range marker appears along with range indication 3 To erase the range marker press the R B key again or place the cursor on the range marker and press the R B key Range marker NAV DATA or A SCOPE e DISPLAY Range Figure 4 6 Range marker 4 10 Adjusting the Picture 4 10 1 Displaying weak echoes clearly Echoes from targets such as the bottom or a fish return to the transducer in order of the distance to them and when their intensities are compared at the transducer face those from nearer targets are generally stronger when their reflecting properties are nearly equal The sonar operator will be quite inconvenienced if these echoes are directly displayed on the screen since he won t be able to judge the actual size of the target from the size of echoes displayed on the screen To overcome this inconvenience use the TVG function It compensates for propagation loss of sound in water amplification of echoes on short range is suppressed and gradually increased as range increases so that similar targets are displayed in similar intensities irrespective of the ranges to them The TVG also functions to suppress unwanted echoes and noise which appears in a certain range area on the screen T
29. obtained by the beam appears in the corresponding sector as it appears on the sonar mode The difference is that the training is performed only in vertical direction It forms a sounding area of a half circle like a slice of watermelon to observe a vertical section of underwater conditions The bearing of the vertical sounding beam can be selected manually or automatically Sounding Beam Screen Display Freq 60 kHz 1 Bearing of the T sounding beam 1 Bearing of the sounding beam 0 Sector center 90 Display range 24 2 Sector center 3 Display area 2 Sector center 3 Display area Select the bearing of the sounding beam 1 by TRAIN control the sounding sector center 2 by the TILT con trol and the display area 3 by the SECTOR control Figure 3 17 How the vertical fan mode picture is painted 3 13 3 13 2 Sample echo displays Port starboard picture bottom You can see fish echoes at the center right of the screen The bottom is displayed wider as the distance from the ship s position increases Therefore it may be difficult to discriminate bottom fish Own ship Fish school 4 A Figure 3 18 Port starboard picture When ship passes over fish schools The sounding beam is directed fore aft and the display is off centered to present a wider view of the area forward of the ship You can clearly see fish schools approaching from the bow of the ship Autom
30. ranges to them The TVG also functions to suppress unwanted echoes and noise which appears in a certain range area on the screen To adjust TVG 1 Press the MENU key to open the menu 2 Press A to select MENU and then press 4 or to select the VERT menu MENU COM1 COM2 HORZ MJANE ES PRESET SYS TVG LEVEL TVG DISTANCE GAIN ADJUST RES COLOR CLUTTER HORZ RANGE V SELECT 4 P CHANGE MENU END Figure 3 13 VERT menu 3 Press A or Y to select TVG DISTANCE and press to show the following dialog box TVG DISTANGE GAIN Hi 3 10 4 Press 4 gt to adjust TVG distance considering sea conditions The larger the figure the greater the distance at which the TVG works TVG Distance 0 0 5 10 15 20 25 30 35 40 45 5 0 e 10 0 Setting Meters 3 8 20 40 60 100 130 160 200 250 320 1000 Feet 10 30 70 130 210 330 410 520 660 820 1040 3280 Passi braza 2 5 10 20 40 60 80 100 120 150 180 600 Hiro 2 5 10 20 40 60 80 100 130 170 210 e 660 5 Press or Y to close the dialog box and return to the VERT menu 6 To suppress reflections by the sea surface or plankton select TVG LEVEL and press P Press 4 gt to adjust TVG LEVEL considering sea conditions The larger the figure the less the gain over distance 8 Press the MENU key to register your selection and c
31. select ES Press v to select A SCOPE Press 4 or gt to open the dialog box A SCOPE OFF ON Press P to select ON Press the MENU key to close the dialog box Echo sounder picture A scope display Figure 4 8 A scope display 4 11 Echo Sounder Menu Overview This section presents an overview of the items on the ES menu 1 Press the MENU key to open the menu 2 Press A to select MENU and then press 4 or to select the ES menu COM1 COM2 HORZ VERT PRESET SYS TVG LEVEL TVG DISTANCE GAIN ADJUST RES COLOR CLUTTER A SCOPE W sELECT 4 bP cHANGE END Figure 4 9 ES menu Press A or Y to select item desired Press to show corresponding dialog box Press 4 or P to select option desired Oya epe 9 Press the MENU key to register your selection and close the menu 4 11 1 Echo sounder menu description TVG LEVEL Compensates for propagation loss of sound in water See paragraph 4 10 1 on page 4 7 Default setting is 4 0 TVG DISTANCE As above Default setting is 4 0 GAIN ADJUST Compensates for too weak or too strong echo level Adjust the gain on the echo sounder mode when it is not the same as that on the horizontal and vertical fan modes Setting range 10 to 10 Default setting is 0 4 10 RES COLOR Sets transfer characteristics of input signal level versus display echo level Echo strength is emphasized in order of CUBE SQUARE LINEAR LO
32. settings select DEFAULT SETTING press P to select YES and press the MENU key 6 Press the MENU key to register settings and close the menu 5 15 5 4 3 Vertical fan mode range settings As with the horizontal mode the user may preset the vertical fan mode s ranges 1 Select RANGE VER MODE at the SYS menu and then press P RANGE VER MODE 10 600m 2 3 4 5 6 7 8 9 mappa yp eljoljjimiio HOM O olj olio o eo Co eo eo DEFAULT SETTING A W SELECT lt P CHANGE MENU END Figure 5 14 Range ver mode menu 2 Press or Y to select range number desired 3 Press 4 or to set range 4 restore default vertical fan mode range settings select DEFAULT SETTING press to select YES and press the MENU key 5 Press the MENU key to register settings and close the menu 5 16 5 4 4 Echo sounder mode range settings As with the horizontal and vertical fan modes the user may preset the echo sounder mode s ranges 1 Select RANGE E S MODE at the SYS menu and then press P RANGE E S MODE uj 10 600m i e AJIN ON DOO FW N eo O N e eo N Co e 5 DEFAULT SETTING A W SELECT 4 CHANGE MENU END Figure 5 15 Range E S mode menu 2 Press or Y to select range number desired 3 Press 4 or to set r
33. suicide ec de iad ce bags Ae e als 6 5 ROME Dear CUR 6 6 6 9 Test Pattern coeno ee ertet ete ts hin eut i Ee eve d ead PES EUN 6 8 TR m M 1 SPECIFICATIONS SP 1 INDEX EE PERRA EELEE EENEN EERE IN 1 FOREWORD Thank you for purchasing the CH 250 Color LCD Searchlight Sonar We are confident you will discover why FURUNO has become synonymous with quality and reliability Dedicated in the design and manufacture of marine electronics equipment for half a century FURUNO Electric Company has gained an unrivaled reputation as a world leader in the industry This is the result of our technical excellence as well as our worldwide distribution and service network Please carefully read and follow the safety information and operating and maintenance instructions set forth in this manual before attempting to operate the equipment and conduct any maintenance Your sonar will perform to the utmost of its ability only if it is operated and maintained in accordance with the correct procedures Features The CH 250 displays underwater objects on a bright 10 4 color LCD display in 8 or 16 colors according to received echo strengths Operating frequency is selectable among 60 88 and 150 kHz Eight operating modes provide information for virtually any fishing application The main features of the CH 250 are e High definition active matri
34. vertical fan mode Enables disables target lock REMOTE CONTROLLER Figure 1 2 Remote controller Note The remote controller can also be used with a commercial monitor 1 2 1 3 Turning the Power On Off 1 3 1 Power on This sonar has a demonstration mode which lets the operator become acquainted with the features of the sonar For further details see page 5 18 Press the POWER switch on the control unit till hear click A beep sounds the lamp above the switch lights and the last used display appears Note Wait at least five seconds before reapplying the power 1 3 2 Power off 1 Press the T switch on the control panel The lamp above the switch blinks while the transducer is being raised and lights steadily when it is fully raised Transducer status indicator Up arrow is filled when transducer has been retracted into the tank Down arrow is filled when transducer has been fully lowered Appropriate arrow flashes during raising lowering of transducer NOTE When the transducer is being raised automatically auto raise feature the arrows are filled and the up arrow flashes When the transducer has been fully retracted the up arrow lights and the down arrow becomes hollow 2 Press the POWER switch after the T switch lights steadily Note 1 The transducer is automatically retracted into the tank if the POWER switch is pressed before retracting the transducer However for safety purposes
35. with one of the DISPLAY MODE keys Refer to the chapter shown in the illustration for more information about each mode Picture Picture 1 6 HORIZONTAL This mode provides 360 degree coverage Useful for general search Chapter 2 VERTICAL FAN Vertical section of underwater conditions appears on the entire screen Chapter 3 NE i b NAV DATA HORIZONTAL HISTORY The horizontal picture appears in the main window the history picture in the sub window Useful for showing history of fish movement distribution Chapter 2 ot 4 NAV DATA HORIZONTAL VERTICAL FAN The horizontal picture appears in the main window the vertical fan picture in the sub window Chapter 3 EXPANDED HORIZONTAL Zoomed horizontal picture appears over the entire screen Chapter 2 NAV DATA or A SCOPE DISPLAY Water temp depth ECHO SOUNDER Using a fixed spot beam this display shows fish echoes below or around the vessel Chapter 4 4 NAV DATA 3 HORIZONTAL VIDEO PLOTTER The horizontal picture appears in the main window and the video plotter picture which traces ship s track in the sub window Chapter 2 HORIZONTAL STRATA The horiz
36. 160 30 NORM CUSTOM1 OQ 240 0 160 30 FAST CUSTOM2 360 0 160 30 FAST CUSTOM3 AN 180 90 120 90 FAST ADJUST THE KNOBS AND FUNCTION KEYS TO THE DESIRED SETTING THEN PRESS A CUSTOM MODE KEY TO SAVE THE SETTING FUNCTION KEY ENTRY MENU END Figure 5 5 PRESET menu 4 Set the MODE SECTOR TRAIN RANGE TILT and FAST SCAN controls according to target fish or fishing area 5 Press the CUSTOM MODE keys 1 2 or 3 to program You are asked if you want to save the settings to the custom key pressed In the example the custom key 1 was pressed SAVE THE SETTING TO CUSTOM KEY NO YES 6 Press P to select YES 7 Press the MENU key The message PRGM SET appears at the screen top 8 Press the MENU key to finish Activating custom mode 1 Press appropriate CUSTOM MODE key The indication CUSTOM1 CUSTOM2 or CUSTOMS appears at the top of the screen depending on key pressed 2 To escape from the custom mode operation operate any of the controls among MODE SECTOR TRAIN RANGE TILT and FAST SCAN 5 6 5 3 3 Short cut key The default settings are key 1 interference rejector key 2 signal level and key 3 background color The operator may change their functions as desired Note In the combination modes the short cut key operation is only possible from the main window 1 Select SHORT CUT following the procedure in paragraph 5 2
37. 2 26 30 37 54 70 150 kHz Range m 10 20 40 60 80 120 160 200 250 300 400 500 600 800 1000 Time Norm 7 7 7 7 7 10 13 16 20 24 32 40 48 64 81 see Teast 7 7 7 7 7 9 11315 17 21 25 28 86 45 SP 2 E1316S01H 4 6 4 7 4 8 4 9 5 1 5 2 5 3 6 2 6 3 7 1 7 2 7 3 8 1 8 2 Vertical Fan Mode Control Scanning Angle Scanning Center Scanning Step Angle Time to Train Transceiver Beam Width 3 dB Allowable Ship s Speed Stabilizer INTERFACE 6 to 180 12 step 0 to 180 6 step Normal 3 High speed 6 360 6 step Frequency Vertical Horizontal 60 kHz 12 15 88 kHz 9 5 11 5 150 kHz 6 5 6 5 20 knot or less 15 knot during raise lower operation Within 30 optional motion sensor or clinometers required IEC61162 1 NMEA0183 Ver 1 5 2 0 DBS DBT DPT GGA GLL HDG HDM HDT MDA MTW RMA 12 32 VDC 4 7 1 8 A within 58 VA 12 24 32 VDC 4 7 2 3 1 8 A within 58 VA Max 16 7 8 2 7 7 A within 200 246 VA 110 220 VAC 13 A 1 phase 50 60 Hz Data format Input RMC VDR VHW VTG Output SSTLL POWER SUPPLY Display Unit Control Unit Transceiver Unit Hull Unit Rectifier option ENVIRONMENTAL CONDITION Ambient Temperature Relative Humidity Water proofing IEC 60529 COATING COLOR Display Unit Control Unit Transceiver
38. 4 4 5 Selecting Tilt Angle e ede C RO X ER 4 4 4 6 Selecting Picture Advance 4 4 4 7 Measuring Range by nnne nennen nnne 4 5 4 87 Event MaTrKeF cct ete td e PERRA ee HUE 4 5 49 Range Marker ote a b wach e aoc HEX Rea dia kaiaa inaia diea 4 7 4 10 Adjusung Aie PICEUIe oii ott tet tette 4 7 4 11 Echo Sounder Menu 4 10 5 MENU OPERATION NE 5 1 5 1 COMI IMG ene 5 1 Bie poire e sedet s pud nde ue 5 3 5 3 Short cut Menu Preset Menu sssse eene nene rnere nnne sensn nis 5 4 9 4 SYS MOnDu odere tali obtu a edu e a A t cn un lu i d ru RR n RH 5 9 6 MAINTENANCE 6 1 6 1 Preventive 6 1 6 2 Cleaning the Edguipmiebl radial poda o e ub el 6 1 6 3 Hull Unit 6 2 6 4 Transducer 6 3 6 57 Grenier Bien Sanita ein dn erdt aes 6 3 6 6 Tro bleshoolinig a AA ERE E ee a 6 4 0 7 Error Messages
39. 7 SPD 9 9 kt CUR 11 0 2 0 kt GAIN 5 8 Tide direction tide speed Gain setting TVG LEVEL 4 0 DISTANCE 200 m DEP TMP TVG level distance settings Color bar Requires appropriate Sensor Depth When the tilt angle is 90 deg the depth measured by this sonar is displayed inside a rectangle 12 3 C Water temperature Event marker Range marker Range scale Figure 4 2 Typical echo sounder display 4 3 Selecting the Range The RANGE control selects the detection display range in 15 settings Select the range according to either the fish species being searched or the depth desired Each time the control is operated the newly selected range briefly appears in large characters at the screen top Range is permanently displayed at the top right hand corner Normally the range is set so that the bottom is traced at the lower part of the screen Surface m Bottom Figure 4 3 Range concept Default echo sounder mode range settings 11213 4 5 6 7 9 10 I B IM Unit Mees 10 20 30 40 60 8 100 120 160 200 250 300 400 500 600 Feet 30 60 90 120 150 200 250 300 400 500 600 800 1000 1500 2000 Note 1 Unit of range measurement may be selected for meters feet fathoms p
40. 72 2 1 2 Press 4 or gt FAST SCAN key may also be used to select a speed The fractions in dialog box correspond to the number of scan lines produced per transmission For example 2 1 means two scan lines are produced per transmission 3 Press the MENU key to close the dialog box Note that the dialog box is automatically closed if there is no control operation for about four seconds 47 Measuring Range by Cursor Use the cursor to display the range from own ship to the cursor location Use the Omnipad to place the cursor where desired The range to the cursor appears at the upper left hand corner of the screen Range to cursor S Range 2x e 05 RE _ NAV ate DATA or A SCOPE DISPLAY Depth Water Temp Display Cursor Figure 4 4 How to measure range with the cursor 4 8 Event Marker The event marker functions to mark important locations on the screen and five event markers may be inscribed Each time the EVENT key is pressed the latest event marker 6 is inscribed at the cursor location and all previously entered event markers are shown by the previous event marker When the capacity for event markers is reached the eldest event marker is erased from the screen to make room for the latest Note 1 The event marker inscribed on the echo sounder display will also be inscribed on the horizontal and video plotter displays However the mark i
41. A or Y to return to the COM1 menu or press the MENU key to register your selection and close the menu 5 1 1 COM1 menu description TX POWER Selects transmitter output power to maximum or minimum The default setting is maximum For further details see page 2 12 PULSELENGTH Selects pulselength to short or long default setting For details see paragraph 2 11 2 on page 2 13 TX RATE The Tx rate may be set between 1 10 default setting 10 in the case of the internal transmitter or an external synchronous signal may be used The higher the number the greater the number of transmissions For operation in shallow waters select the Tx rate which displays the second reflection from the bottom between the sea surface and bottom For use of an external video sounder or sonar select EXT INT REJECT Turns the interference rejector on or off default setting For details see paragraph 3 11 2 on page 3 11 AGC Automatically lowers sensitivity against strong echoes such as those from the bottom and large fish schools to emphasize weak echoes such as those from fish close to the bottom The default setting is OFF AUDIO LEVEL Adjusts the audio level of the external loudspeaker option 5 2 COM2 Menu 5 2 1 Displaying the COM2 menu 1 Press the MENU key to open the menu 2 Press A to choose MENU and then press lt or gt to choose COM2 eA HORZ VERT ES PRESET SYS DELETING TRACK WHITE MARKER SIG LEVEL COLOR BKGD COLOR
42. Adjust gain ex TVG as required c b GAIN SECTOR CTRAN CRANGE eg A Ge E ae sce MENU GASS OG e DISPLAY MODE VA p 2 Lower the transducer 4 Select appropriate 10 Measure range and vertical fan mode bearing to target with cursor 7 b Select training sector 180 3 Adjust screen brilliance Figure 3 1 Control panel 3 2 Typical Vertical Fan Mode Display Bearing indicator Shows training direction FORE Own ship PORT STARBOARD mM Vertical range Training indicator j orizontal range AFT Interference Transducer status indicator rejector ON Filled arrow Respective action completed Blinking arrow Action in progress Heading Cursor position Horizontal range scale data 36 R gt 60m 4 4 145 77777 1 340 4 100m 60 FORE AFT 60 rd 34 12 343 Position in latitude Fish echo ss 134 34 213 W longitude CSE 357 Cursor SPD 99kt Course speed Horizontal range DEP 7 Depth 35 m j Bottom T ag i echo TMP 2 ER RQ y 12 3 C T Water temperature Dope ce e RE eed CUR 110 Tide direction Q 2 0 kt tide speed I GAIN 5 3 T
43. CK TRANSCEIVER UNIT PRESS R B KEY TO SILENCE ALARM CPU does not receive frequency flag from transducer Silence the audio alarm with the R B key and then check the transceiver unit TRAIN NG CPU does not receive heading signal Check source of heading signal Excessive Speed SHIPS SPEED EXCEEDS 15 kt See page 5 11 for details SLOW DOWN UNDER 15 kt WHEN MOVING TRANSDUCER PRESS R B KEY TO SILENCE ALARM TRANSDUCER REMAINS LOWERED REDUCE SHIP S SPEED AND PRESS TO RETRACT IT PRESS R B KEY TO SILENCE ALARM 6 8 Diagnostics 1 Press the MENU key to open the menu Press to select MENU and then press P to select SYS Press v to select GO TO SYS MENU Press 4 to select YES oT Select TEST and press P to start the test The lamps above the XDR switches light alternately for one second while the test is being conducted In a few moments the results of the test appear MAIN PROGRAM NO 06501 10 0 PANEL PROGRAM NO 0650104 0 ROM OK RAM OK VRAM OK NMEA OK PANEL CPU OK TX FREQUENCY 60 kHzt ROLL 10 PITCH 10 PULSES NG TRAIN 357 0 TEST COUNT 0 REMOTE CONTROL PANEL Requires special plug to test Nothing displayed when plug is not connected 2 Program Version No T Frequency depends on transducer used Figure 6 2 Test results Interpreting the test results display e The program numbers of the MAIN and PANEL programs appear at the top of the display
44. G You can see the characteristics of each by watching the color bar as you change the setting The default setting is LOG LOG Displays weak to strong echoes in their respective levels This setting is suitable for general use LINEAR Downplays the weak echoes when compared with LOG Effective for suppressing weak echoes such as plankton SQUARE Strong echoes are emphasized more than in LINEAR CUBE Strong echoes are emphasized even more than in SQUARE CLUTTER Low intensity echoes often caused by sediments in water are painted on the screen as a large number of random dots The higher the number setting the weaker the echoes which are erased A SCOPE Turns the A scope display on off Default setting is OFF See paragraph 4 10 2 on page 4 9 4 11 This page intentionally left blank 4 12 5 MENU OPERATION This chapter provides menu operating information on menus not previously discussed COM1 COM2 PRESET or SHORT CUT depending on the setting of CUSTOM KEY on the SYSTEM SETTING 1 menu and SYS System menu 5 1 COM1 Menu 1 Press the MENU key to open the menu 2 Press to select MENU and then press lt to select COM1 COM2 HORZ VERT ES PRESET TX POWER PULSELENGTH TX RATE INT REJECT AGC AUDIO LEVEL V SELECT P CHANGE MENU END Figure 5 1 COM1 menu 3 Press A or v to select item 4 or to open associated dialog box 4 Press 4 or gt to select option desired 5 Press
45. GET key again The message LOCK END momentarily appears the target lock marker and the target lock indicator disappear and previously used sector train and tilt settings are restored Also latitude and longitude indication returns to normal 2 18 2 12 4 Echo mode The echo mode tracks a fish school either automatically or manually The default setting is automatic and you can select automatic or manual with LOCK MODE in the HORZ menu Automatic echo tracking mode The automatic echo target lock function automatically tracks a fish school appearing in the operator selected target lock zone If the tracked fish school goes out of the zone in the range direction tracking is suspended until it or a new fish school comes into the zone To use the automatic echo tracking mode 1 Select ECHO following the procedure in paragraph 2 12 1 2 If necessary select LOCK MODE to AUTO default setting on the HORZ menu 3 Press the TARGET key The dialog box below appears at the screen center the message ECHO LOCK appears for three seconds at the top of the screen the target lock area appears in the current train area and the target lock indicator appears at the right hand side of the screen TARGET LOCK AREA 4 INSIDE V OUTSIDE 4 Use the SECTOR and TRAIN controls and the Omnipad to set the detection area Do not include bottom echoes in the zone so that target lock will not be activated by bottom ec
46. LF URUNO OPERATOR S MANUAL COLOR LCD SEARCHLIGHT SONAR MODEL CH 250 FURUNO ELECTRIC LTD NISHINOMIYA JAPAN PRINTED IN JAPAN FURUNO ELECTRIC CO LTD Your Local Agent Dealer 9 52 Ashihara cho Nishinomiya Japan Telephone 0798 65 2111 fax 0798 65 4200 QUE SN eee A ee PE FIRST EDITION MAR 2000 MIR SRM NOV 20 2003 DAMI CH 250 00080894802 OME13160L00 A SAFETY INSTRUCTIONS A WARNING ELECTRICAL SHOCK HAZARD Do not open the equipment Only qualified personnel should work inside the equipment Immediately turn off the power at the switchboard if water leaks into the equipment or something is dropped in the equipment Continued use of the equipment can cause fire or electrical shock Contact a FURUNO agent for service Do not disassemble or modify the equipment Fire electrical shock or serious injury can result Immediately turn off the power at the switchboard if the equipment is emitting smoke or fire Continued use of the equipment can cause fire or electrical shock Contact a FURUNO agent for service Make sure no rain or water splash leaks into the equipment Fire or electrical shock can result if water leaks in the equipment A WARNING Keep heater away from equipment A heater can melt the equipment s power cord which can cause fire or electrical shock Use the proper fuse The fuse in the hull and transceiver un
47. Low level enhanced echo disappeared Strong echo indicated as expanded to range direction Vector estimated point after 10 seconds to 6 min menu setting Target Lock three function selected on menu Scanning Reverse Location Search Echo Search 2 15 Clatter 3 TRANSCEIVER UNIT 3 1 3 2 3 3 3 4 4 4 1 4 2 4 3 4 4 4 5 Scanning orientation changed by pressing key Auto search for marker setting location Auto search for signal level in a search zone or manual search Suppresses low intensity echoes Frequency 60 88 150 kHz Auto setting according to Hull Unit Specs Output Power 0 8 1 2 kW due to frequency power reduction function available Output Pulse Length 0 2 to 20 0 ms according to range TVG Level 100 dB max Distance 1000 m HULL UNIT Transducer Travel 400 mm or 250 mm Raise lower Time 30 s at 400 mm travel Ship s Bow Setting Setting offset on menu at installation within X30 Horizontal Mode Control Scanning Angle 6 to 360 24 step Scanning Center 6 steps 360 setting available Scanning Step Angle Normal 6 High speed 12 Elevation Angle 5 to 90 1 step Auto Tilt setting 2 to 10 Time to Train Full Circle 60 kHz Range m 10 20 40 80 120 160 200 250 300 400 500 600 800 1200 1600 Time Norm 9 9 9 9 10 13 16 20 24 32 40 48 64 97 128 sec 9 9 9 9 10 12 14 16 18 2
48. N Target lock indicator Transducer status indicator Position in latitude longitude Course speed Sonar range marker Radius changes with video plotter range Event marker data Requires appropriate sensor Horizontal Display Track Video Plotter Display SEEN Figure 2 28 Horizontal Video Plotter display Event marker Entered from horizontal mode Scale The horizontal display appears in the main window the video plotter display which traces ship s track on the display in the sub window Compared to the horizontal display the video plotter s range is much longer For example an event marker entered on the horizontal display disappears from that display when it goes out of the current range However it remains on the video plotter display for a much longer time when a long range scale is used This can be useful when you want to return to the location denoted with an event marker To display track on the horizontal display the tilt angle must be less than 75 degrees You may switch control between the horizontal display and the video plotter display with the MAIN SUB key The message MAIN WINDOW CONTROLLABLE or SUB WINDOW CONTROLLABLE appears with each pressing of the key A red rectangle circumscribes the sub window when it is selected With the video plotter display selected you may change its range with the RANGE control Note Controls other than RANGE may only be operate
49. NG 1 menu 5 10 SYSTEM SETTING 2 menu 5 12 T Target lock echo mode icis cotto eos 2 15 manual position mode 2 14 manual reverse mode 2 13 selection of mode 2 13 Test 6 8 TILT control echo sounder mode 4 4 horizontal 2 5 vertical fan 3 6 Track deletiritj aer tei rte sert in 5 3 ON OT cse tacit E 5 10 range preset etit 5 18 TRAIN control echo sounder mode 4 4 horizontal 2 5 vertical fan 3 4 Transducer automatic retraction 5 12 6 3 Transducer switches 1 3 Transmitter output power 2 8 Troubleshooting 6 4 TVG echo sounder mode 4 7 horizontal 2 9 vertical fan mode 3 10 TVG 5 11 U Unit of measurement depth iet re 5 11 water temperature 5 11 V VERT menu
50. TOR control Y 24 FULL HALF key L 180 Half circle M SE 180 oY 0 FULL HALF key Cs Figure 3 7 How the FULL HALF key works 120 3 6 Selecting Sector Center The center direction of the sounding beam in the vertical direction can be changed with the TILT control The setting range is 0 to 180 in increments of 6 Select the setting which places the sector center in the middle of the detection range Sector center angle set with TILT control In the example display at left the sector center indicator is starboard and the PORT STBD width of the sector is 48 Sector range Sector center indicator Sector of 48 set with SECTOR control Figure 3 8 Sector center Automatic shifting of own ship position Own ship position on the screen is automatically shifted either rightward or leftward according to the direction of the sector center and display sector width The figure below shows the own ship position has been shifted rightward on the screen to provide the wider view at the port side Sector center 0 to 60 Own ship position shifted to port side Sector center 66 to 114 Own ship position shifted to center Sector center 120 to 180 Own ship position shifted starboard Display sector Sector center Figure 3 9 How automatic shifting works 3 7 Selecting the Training Speed The training speed s
51. ange The setting range depends on the transducer used 4 restore default echo sounder mode range settings select DEFAULT SETTING press gt to select YES and press the MENU key 5 Press the MENU key to register settings and close the menu 5 17 5 4 5 Track range settings You may choose the video plotter display scale range as follows 1 Choose RANGE TRACK at the SYS menu and then press gt RANGE TRACK MODE DEFAULT SETTING NO YES A W SELECT 4 CHANGE MENU END Figure 5 16 Range track mode menu 2 Press A or W to choose range number desired 3 Press 4 or gt to set 4 Press the MENU key to register settings and close the menu 5 18 5 4 6 Color palette The color palette lets the user change the color of echoes background text and menu as desired Cursor COLOR PALETTE 12345 6 7 8 9101112131415 Arrow BKGD TEXT MENU BKGD TEXT MENU BKGD TEXT MENU 80 18 CIEECH DEFAULT SETTING YES ECHO amp BKGD COLORS WILL BE CHANGED W sELECT lt q CHANGE MENU END Figure 5 17 Color palette 1 Press 4 or P to place the cursor and arrow on the item to change Pressing P shifts the arrow and cursor from left to right and top to bottom 2 Press A or Y to select R red G green or B blue as appropriate 3 Press 4 or P to adjust color 4 Press the MENU key to register your settings and close the menu
52. assi braza or Hiro Japanese For details see page 5 11 Note 2 Ranges may be freely preset as desired For details see page 5 17 4 4 Train Direction The sounding beam may be directed toward fore aft port or starboard Operate the TRAIN control to select sounding beam direction Each setting on the control is an increment of 6 The train indicator at the top of the screen shows training direction 0 fore direction 90 starboard direction 180 aft direction and 270 port direction 0 360 gt 6 5 12 gt 18 gt 354 Train 0 Train 90 Train 180 Train 270 Figure 4 4 Train indicator and display 4 5 Selecting Tilt Angle The transducer can pointed directly toward the bottom or forward of the ship Operate the TILT control to select an appropriate tilt angle The available tilt angle is 0 horizontal direction to 90 vertical in increments of 1 Selected tilt angle appears at the top of the display to the right of 4 6 Selecting Picture Advance Speed The picture advance speed determines how quickly the vertical scan lines run across the screen from right to left When selecting a picture speed keep in mind that a fast advance speed will expand a fish school horizontally on the screen and a slow one will contract it 1 Press the FAST SCAN key The following dialog box appears Do the next step within four seconds otherwise the dialog box will be erased ADVANCE 18 1 4 1
53. atically shifted Own ship Figure 3 19 Picture appearance when passing over fish schools 3 14 Display of net hauling This is an example of net hauling display The location of the net is indicated clearly Figure 3 20 Net hauling and sonar picture False echo In shallow water depth less than 100 m detection unwanted echoes shown in the figure may appear This phenomenon is caused by the false echo from the previous transmission Reducing the Tx rate on the COM1 menu may lessen this effect False echo Figure 3 21 False echoes 3 15 3 13 3 Horizontal vertical fan display Press the ea key to display the horizontal vertical fan display r Tilt angle Vertical fan Cursor data bearing cursor Range Tilt angle indicator R 40m ere T 40 Interference rejector 25 ON NT Own ship i 4 Transducer status indicator marker 34 12 343 N Position in latitude Trai 134 34 213 W longitude rain position CSE 357 SPD 9 9KT Course speed FORE Requires navigator d Ru Sweep indicator Cursor y tilt angle e 190 e Horizontal Display Vertical Fan Display main window sub window Figure 3 22 Horizontal vertical fan display The horizontal display appears in the main window the vertica
54. ation of echoes on short range is suppressed and gradually increased as range increases so that similar targets are displayed in similar intensities irrespective of the ranges to them The TVG also functions to suppress unwanted echoes and noise which appears in a certain range area on the screen Without TVG Nearer target Proper TVG setting echoes appear Reduce g Echoes of equal in larger size gain for _ nearby size targets are Noise caused by gt areas presented in the strong reflection using same color and size of surface TVG Noise is rejected turbulence Figure 2 14 How TVG works Note Excessive TVG may eliminate short range echoes 2 13 To adjust TVG 1 Press the MENU key to open the menu 2 Press to select MENU and then press lt to select HORZ TVG LEVEL TVG DISTANCE GAIN ADJUST RES COLOR CLUTTER TARGET KEY LOCK MODE AUTO TILT COM1 REVERSE AUTO OFF V SELECT 4 CHANGE Figure 2 15 HORZ menu MENU END COM2 9574 VERT ES PRESET 3 Press A or to select TVG DISTANCE and press P The following dialog box appears TVG DISTANCE Hi 4 Press 4 or gt to adjust TVG distance between 3 0 and 5 0 130 320 m As a general rule use a higher setting for low frequency transducer a lower setting for high frequency transducer The larger the figure the greater the distance at which TVG works When you open the TVG dialog box the TVG line c
55. c tilt adjusts the tilt angle in the following sequence B 5 B A gt B gt B A gt B B A gt B gt B A B Current tilt angle A Auto tilt setting For example the tilt angle is 30 and the automatic tilt setting is 4 Then the tilt angle is changed in the following sequence 30 26 30 gt 34 30 26 5 30 gt 34 Note The TILT control is inoperative when automatic tilt is active 2 22 2 14 Interpreting the Horizontal Display This section provides information necessary for interpreting the horizontal display 2 14 1 How the horizontal mode picture is painted The wide sounding beam is emitted from the soundome at a certain tilt angle see hatched area in the figure below The information target echoes obtained by this beam is displayed in sectors of increments of 12 of the screen Thus all directions around the boat are sounded in 30 times of transmissions Note When the FAST SCAN is switched off the equipment operates in a narrow sounding beam Then the echoes appear on a 6 sector in each transmission so 60 transmissions are required to complete the full 360 picture 6 x 60 360 This means that training speed is slower However since transmission power is concentrated into the narrow sounding beam a superior detection range is obtained Furthermore since the bottom contour is painted distinctly bottom fish may be more easily detected Sounding Beam Screen Display
56. d automatically the buzzer sounds and the target lock indicator blinks If the fish echo is lost the tilt angle is automatically changed to continue tracking as below 1 Tilt angle is changed by 10 10 A is the tilt angle used when tracking began 2 Tilt angle is changed by 10 10 3 If the echo could not be found tracking is cancelled and tilt angle A is restored 4 To quit the target lock press the TARGET key again The message LOCK END appears momentarily 2 20 2 13 Horizontal Menu Overview This section presents an overview of the items on the HORZ menu 1 Press the MENU key to open the menu 2 Press A to select MENU and then press 4 or to select the HORZ menu MENU COM1 COM2 574 VERT ES PRESET SYS TVG LEVEL TVG DISTANCE GAIN ADJUST RES COLOR CLUTTER TARGET KEY REVERSE LOCK MODE AUTO AUTO TILT OFF V SELECT 4 P CHANGE MENU END Figure 2 19 HORZ menu Press A or v to select item desired Press to show corresponding dialog box Press 4 or P to select option desired oo B amp Press the MENU key to register your selection and close the menu 2 13 1 Horizontal menu description TVG LEVEL Compensates for propagation loss of sound in water Default setting is 4 0 For further details see paragraph 2 11 3 on page 2 13 TVG DISTANCE As above Default setting is 4 0 GAIN ADJUST Compensates for too weak or too strong echo level Adjust it when th
57. d from the main window When you attempt to operate them when the sub window is selected the message SELECT MAIN WINDOW appears The video plotter display cannot be adjusted 2 29 Horizontal strata display Press the 98 key to display the horizontal strata display r Tilt angle Cursor position Range Tilt angle indicator data 212 R 40 30 110 e LT 40 777 Interference rej ON B133 m P Target lock indicator ERE Transducer status Own ship indicator marker i 5 i 3a 12 343 N L1 Position in latitude bum 134 34 213 W longitude position I CSE 357 SPD 99k Course speed oor PORT STBD Color bar gt by one with each train Number of lines increases for strata 4 Top line is latest bottom display i line is oldest E T 4 Requires appropriate i sensor input Cursor 90 0 90 Heading gt L Horizontal Display I Strata Display main display sub window Figure 2 29 Horizontal strata display The horizontal display appears in the main window the strata display in the sub window The strata picture shows bottom undulations in different colors This is useful in bottom trawling to avoid projections which may damage the net Coverage for the horizontal mode is 360 picture and for the strata display it is maximum 90 from port to 90 starboard The s
58. direction is reversed 2 17 2 12 3 Position mode This mode tracks a stationary position such as a reef using position data fed from a navigator Note1 This function is inoperative in the echo sounder mode In the vertical fan mode the reverse mode is automatically selected regardless of the setting in paragraph 2 12 1 Note2 This mode requires position data When there is no position data the message NO POSITION DATA appears for five seconds and tracking is automatically cancelled Check the navigator Note3 The tilt angle must be less than 75 degrees to use this feature To use the position mode 1 2 3 Select POS following the procedure in paragraph 2 12 1 Use the Omnipad to select the location to track Press the TARGET key The message POS LOCK appears momentarily at the screen top the target lock marker is displayed at the cursor position and the target lock indicator appears at the top right hand corner of the screen while tracking with position data from external equipment is occurring If the position goes out of the display area target lock is automatically cancelled and the target lock indicator and target lock marker disappear The SECTOR TILT and TRAIN controls are inoperative since they are automatically adjusted Target lock indicator e f 4 gt a Target lock marker Figure 2 17 Target lock indicator To turn off the target lock press the TAR
59. display Press the 98 key to display the horizontal history display r Tilt angle Cursor position r Range Tilt angle indicator data 17 o R 40m 14 LT 40 Interference rej ON Target lock indicator Transducer status z indicator Own ship Ne can 12 343 N Position in latitude Train 134 34 213 W_ longitude position CSE 357 SPD 9 9 kt Course speed di vmm tot Fish echo Bottom echo Cursor Requires appropriate sensor input _________ Horizontal Display History Display Figure 2 27 Horizontal history display The horizontal display appears in the main window the history display in the sub window The length of the picture displayed in the history display is equal to about four full circle pictures Thus the history display enables you to observe the history of fish movement and distribution It is also useful for detecting bottom fish reefs and sunken vessels The history display cannot be adjusted 2 28 Horizontal video plotter display Press the 2 key to display the horizontal video plotter display Cursor position data Own ship marker Train 4 position e Track _ 15 B 195 Range r Tilt angle Tilt angle indicator 7 LL 7 gt f 4 34 12 343 N 134 34 213 W CSE 357 SPD 9 9kt Interference rej O
60. e 2 Event markers cannot be inscribed from the vertical fan display when it is in the sub window Horizontal vertical fan display Inscribe the marker from the horizontal display to show it in the vertical fan display 3 Operate the Omnipad to place the cursor on the location desired for an event marker 4 Press the EVENT key to inscribe the event marker The event marker is inscribed on the vertical fan display as well as the horizontal and video plotter displays Previous event Display area marker NAV DATA Latest event marker To delete all event markers place cursor outside display area and press the MENU key Figure 3 11 How to inscribe delete the event markers 3 9 1 Deleting all event markers All event markers can be erased from the screen as follows 4 Operate the Omnipad to place the cursor outside the display area 5 Press the EVENT key to show the following dialog box Do the next step within four seconds otherwise the dialog box will be erased DELETE EVENT MARK YES 6 Press P to select YES and press the MENU key All event markers are erased from the screen 3 10 Depth and Horizontal Range Markers The depth and horizontal range markers function to measure the horizontal range and depth to a desired echo Note Depth and horizontal range markers cannot be inscribed from the vertical fan display when it is in the sub window Horizontal vertical fan di
61. e COM1 menu Damage to the train tilt section may result if it is operated with maximum transmitter power When the ship is dry docked check for signs of corrosion on the soundome Find the reason for the corrosion and attach a zinc plate to the hull unit as an anticorrosion measure if necessary SYSTEM CONFIGURATION INTERFACE UNIT IF 8000 ERENN Navigator eee eee eee Control Unit VGA Ext Monitor emote rR Controller toe LI aC 256 TRANSCEIVER UNIT CH 253 HULL UNIT MONITOR UNIT MU 100C Note 1 E a Speaker Note 1 Note 2 Motion Sensor 1 MS 100 MU 100C is the standard supply monitor unit An external monitor may be connected via the interface unit option The drawing above shows the system configuration with the MU 100C The monitor unit and control unit can be installed separately optional mounting kit required For blackbox type MU 100C is not supplied Connect external monitor and control unit to the interface unit HULL UNIT 12 32 VDC CH 254 CH 255 12 24 32 VDC vii This page intentionally left blank viii 1 OPERATIONAL OVERVIEW 1 1 Control Description Selects center bearing of training sector Selects detection range Switches training sector to 360 horizontal mode or 180 vertical fan mode Turns thie power on off Selects scan speed sonar picture Raises the transducer adva
62. e echo false echo An ultrasonic wave is emitted only in the direction set by the TILT control 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 These are represented on the display as a false echo as shown below Mainlobe echo Sidelobe echo Mainlobe a The bottom echo detected by sidelobe appears at a certain tilt angle when the sidelobe points ver tically Also poor soundome projection may result in a similar false echo Figure 2 25 Sidelobe echoes Noise and interference When the fishing ground is crowded with many fishing boats the sonar is subject to interference from ultrasonic equipment echo sounder or sonar on other boats as well as those on own ship For instance interference from the sonar operated on other boats will show itself on the display as in A in the figure below This interference can be suppressed by changing the Tx rate on the COM1 menu Noise from marine life shows itself on the displays as in B in the figure below This type of noise can be suppressed with the interference rejector on the COM1 menu A Inteference from B Interference from other sonars yours marine life or other s Figure 2 26 Noise and interference 2 27 2 14 3 Combination display examples Horizontal history
63. e extends from the own ship marker in direction of ship s bow on the horizontal mode display The tip of the line shows the estimated time of arrival after the selected ETA time elapses using the current ship s speed ETA is calculated every second considering tilt and detection range This function requires speed input ETA marker Figure 5 10 ETA marker 5 11 SYSTEM SETTING 2 menu description SYSTEM SETTING 2 1 STABILIZER OFF AUTO RETRACTION OFF 5 15kt SPEED ALARM MESSAGE ON SWEEP INDICATOR DOT LINE SOUNDOME SERIAL NO 999 1000 DEFAULT SETTING YES MAXIMUM ALLOWABLE SPEED IS 15 KNOTS WHILE SOUNDDOME IS BEING RETRACTED IF VESSEL HAS RAPID ACCELERATION CAPABILITIES AUTO RETRACTION SETTINGS OF 10 12 KNOTS ARE MANDATORY TO AVOID CATASTROPHIC DAMAGE TO SOUNDOME ASSY ANY PHYSICAL DAMAGE TO THE SOUNDOME ASSY IS CONSIDERED ABUSE AND IS NOT A WARRANTY ISSUE W SELECT 4 P CHANGE MENU END Figure 5 11 System setting 2 menu STABILIZER Choose ON to compensate for effects of ship s pitching and rolling Requires Motion Sensor MS 100 or Clinometer BS 704 AUTO RETRACTION Turn on to automatically retract the transducer when ship s speed exceeds the speed set here The ship s speed range for automatic retraction is from 5 to 15 knots The default setting is OFF no automatic retraction Requires speed input Note The transducer may be retracted at a speed other than the intended one when ship
64. e gain on the horizontal mode when it is not the same as that on the vertical fan and echosounder modes Setting range 10 to 10 Default setting is O 2 21 CLUTTER Low intensity echoes often caused by sediments in water are painted on the screen as a large number or random dots This noise can be suppressed The higher the number setting the weaker the echoes which are erased RES COLOR Sets transfer characteristics of input signal level versus display echo level Echo strength is emphasized in order of CUBE SQUARE LINEAR LOG and you can observe the characteristics of each by watching the color bar as you change the setting LOG Displays weak to strong echoes in their respective levels This is the default setting and is suitable for general use LINEAR Downplays the weak echoes when compared with LOG Effective for suppressing weak echoes such as plankton SQUARE Strong echoes are emphasized more than in LINEAR CUBE Strong echoes are emphasized even more than in SQUARE TARGET KEY Selects target lock function among reverse position and echo Default setting is REVERSE For further details see paragraph 2 12 on page 2 17 LOCK MODE Selects how to track fish echo in echo target lock automatically or manually Default setting is AUTO For further details see paragraph 2 12 on page 2 17 AUTO TILT Turns automatic tilt on or off and the default setting is OFF The choices are 32 4 6 and 10 Automati
65. elect menu desired Press A or v to select menu item desired At the bottom of the screen menu help is provided Press gt to open the corresponding dialog box The example below shows the dialog box for DELETING TRACK in the COM2 menu DELETING TRACK YES Figure 1 7 Dialog box for deleting track Press 4 or gt to select option desired If the option requires selection of numeric data use 4 or gt to lower or raise the figure respectively Press A or Y toreturn to the menu or press the MENU key to register your selection and close the menu 2 HORIZONTAL MODE 2 1 Operational Overview The figure below shows the typical horizontal mode operating sequence 7 Set center bearing of train 8 Set tilt angle sector 6 a Set scanning sector 5 Set range 1 Turn on the power 11 Adjust menu settings 9 Adjust gain ex TVG as required FURUNO fA _ OO O OO i GAIN SECTOR CTRAN CRANGE_ 6 1 MAIN FULL FAST POWER OB ee at T Cm eer j ees cm DISPLAY MODE L 2 Lower the 4 Select appropriate 10 Measure range and transducer horizontal mode bearing to target with cursor 6 b Select training sector for 3 Adjust screen full circle brilliance Figure 2 1 Control panel 2 2 Depth marker
66. elects how fast the transducer scans the display sector Two choices are available 3 normal speed default setting and 6 high speed and one may be selected with the FAST SCAN key Each time the key is pressed the display momentarily shows NORM normal speed or FAST high speed Normal 60 transmissions for half circle in increments of 3 High 30 transmissions for half circle in increments of 6 3 8 Finding Echo Position with the Cursor The cursor measures horizontal range and depth Operate the Omnipad to place the cursor where desired Cursor data appears at the top left hand corner on the screen Cursor data gt Horizontal range Depth NAV DATA Cursor Figure 3 10 Location of cursor position data 3 9 Event Marker The event marker functions to mark important locations on the screen and five event markers may be inscribed Each time the EVENT key is pressed the latest event marker 6 is inscribed at the cursor location and all previously entered event markers are shown by the previous event marker When the capacity for event markers is reached the eldest event marker is erased from the screen to make room for the latest Note 1 Event marker position can be output to external equipment and marked on the display of the external equipment Each press of the EVENT key outputs event marker position For details see TARGET L L on page 5 11 Not
67. er to the illustration below Case1 Tilt angle 30 to 40 This tilt angle will display the entire bottom since it is captured by the full width of the beam Case2 Tilt angle 10 to 20 This tilt angle will only display half the bottom since it is only captured by the lower half of the beam Case3 Tilt angle 0 to 5 This tilt angle may or may not capture the bottom since the returning echo is weak 2 6 2 How to discriminate fish echoes from the bottom The figure at the bottom of the page 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 Fish school is obscured by the bottom Case 2 Tilt angle 10 to 20 Fish school is located above the bottom midwater Case 3 Tilt angle 0 to 5 Fish school is located close to the bottom Case 1 Case 2 Case 3 Fish school a Fish school a Bottom Fish school b Bottom Fish school b Fish school b Case 2 Case 3 Figure 2 7 Fish echo and tilt angle Points to consider Normally a vertically distributed fish school is a better sonar target than the bottom because it reflects the transmitted pulse back toward the transducer In case 3 both fish schools a and b are presented Generally speaking however midwater fish schools tend to be larger than bottom fish schools and they are often displayed near the bottom on the d
68. evel Adjust it when the gain on the vertical fan mode is not the same as that on the horizontal and echo sounder modes Setting range 10 to 10 Default setting is 0 RES COLOR Sets transfer characteristics of input signal level versus display echo level Echo strength is emphasized in order of CUBE SQUARE LINEAR LOG You can see the characteristics of each by watching the color bar as you change the setting Default setting is LOG LOG Displays weak to strong echoes in their respective levels This setting is suitable for general use LINEAR Downplays the weak echoes when compared with LOG Effective for suppressing weak echoes such as plankton SQUARE Strong echoes are emphasized more than in LINEAR CUBE Strong echoes are emphasized even more than in SQUARE 3 12 CLUTTER Low intensity echoes often caused by sediments in water are painted on the screen as a large number of random dots The higher the number setting the weaker the echoes which are erased HORZ RANGE You may choose the horizontal range expansion factor for the vertical scan picture from x1 or x2 Note that this feature cannot be adjusted when the vertical search mode activated by a function key is turned on 3 13 Interpreting the Vertical Fan Display This section provides information necessary for interpreting the vertical fan display 3 13 1 How the vertical fan mode picture is painted The sounding beam is emitted and the information target echoes
69. hanges from solid to dashed and a solid line denotes current TVG setting TVG Distance 0 0 5 11 0 1 5 20 25 30 35 40 45 50 10 0 Setting Meters 3 8 20 40 60 100 130 160 200 250 320 1000 Feet 10 30 70 130 210 330 410 520 660 820 1040 3280 Passi braza 2 5 10 20 40 60 80 100 120 150 180 600 Hiro 2 5 10 20 40 60 80 100 130 170 210 660 2 14 Press the MENU key to register your selection and close the menu To suppress reflections by the sea surface or plankton select TVG LEVEL and press P Press 4 or to adjust TVG LEVEL considering sea conditions A setting between 2 0 and 5 0 should provide satisfactory results The higher the figure the less the gain over distance Press the MENU key to register your selection and close the menu Watch a distant fish echo which is approaching own ship Adjusting the tilt angle so the fish echo is within the sounding beam Observe color of fish echo If the color and size of the echo stay the same as the echo approaches own ship the TVG setting is proper If the echo suddenly becomes smaller the TVG level may be too high 2 11 4 Erasing weak echoes Weak echoes such as interfere can be erased from the screen This is useful when you want to observe a fish school echo 1 2 3 4 5 Press the MENU key to open the menu Press to select MENU Press 4 to selec
70. hoes When a target of red or reddish brown color is detected in the zone the target lock indicator blinks and a buzzer sounds to call the operator s attention The SECTOR TILT and TRAIN controls are inoperative since they are automatically adjusted When you attempt to operate shoes controls the message TARGET LOCKING NOW appears Outer limit NE e 4 V of Target lock indicator NAV DATA Inner limit Figure 2 18 Target lock area 2 19 When the fish echo is lost the tilt angle is automatically changed as below to continue tracking the echo Y Tilt changed to search A 10 A 10 Y Detection area displayed once again and target lock indicator lights A Tilt angle at start of target lock 5 To turn off the target lock press the TARGET key again The message LOCK END appears for three seconds at the screen top the target lock indicator disappears and operation continues with current train and tilt settings Manual echo tracking mode 1 Select ECHO following the procedure in paragraph 2 12 1 2 Select LOCK MODE to MANUAL on the HORZ menu 3 Press the TARGET key when a wanted target echo appears The message ECHO LOCK appears along with the target lock indicator Then the transducer train direction is reversed and searching starts with the current tilt angle When a target echo appears the transducer train direction is again reverse
71. isplay It is difficult to detect bottom fish when they are not distributed vertically 2 6 3 Tilt angle for surface fish Sound emitted from the sonar transducer forms an oval shaped beam with a width of approximately 12 for 60 kHz transducer at 3 dB in the vertical direction vertical beam width The tilt angle is indicated by the angle between the center line is parallel with the sea surface and one half of the emitted sound goes upward toward the sea surface This causes one half of the emitted sound to be reflected toward the transducer and displayed on the screen as sea surface reflections When the sea is calm since the sound is reflected just like reflections become negligible However if the sea is not calm enough they will become dominant and interfere with observation of wanted echoes To minimize these sea surface reflections and to search fish schools effectively the tilt angle is usually set between 5 and 6 so the upper portion of the beam becomes almost parallel with the sea surface When the sea is rough the tilt angle is slightly increased to lessen the affect of sea surface reflections Sea surface Tiltangle 0 12 Sea surface Tilt angle 5 7 9 12 Figure 2 8 Tilt angle 2 6 4 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 Ti
72. its protect them from overvoltage equipment fault and reverse polarity of the ship s mains If a fuse blows replace it with fuse of the same amperage Use of a wrong fuse can result in equipment damage Retract the transducer before turning off the power Damage to the equipment may result Wait until the transducer switch lights steadily and then turn off the power A CAUTION Do not exceed 20 knots when operating the equipment and do not exceed 15 knots when lowering or raising the transducer The transducer may become damaged Do not use the equipment for other than its intended purpose Use of the equipment as a stepping stool for example may result in personal injury or damage to the equipment Warning labels are attached to the display transceiver and hull units Do not remove the labels If a label is missing or illegible contact a FURUNO agent or dealer A WARNING A TRANSCEIVER UNIT To avoid electrical shock do not Name Warning Label 1 remove cover No user serviceable Type 86 003 1011 1 parte inside Code No 100 236 231 DISPLAY UNIT Name Warning Label 1 Type 86 003 1001 1 Code No 100 236 741 HULL UNIT Name Finger Catch Warning Label Type 06 021 4015 0 Code No 100 281 590 A WARNING A Moving shaft can pinch and cut Keep hands clear while operating Lockout power before servicing A A A CAUTION WORKING WITH THE SONAR OIL Precautions Keep oil awa
73. l fan display in the sub window The displays are independent of each other so you can adjust them as desired Press the MAIN SUB key to select the window to adjust Each pressing of the key momentarily displays MAIN WINDOW CONTROLLABLE or SUB WINDOW CONTROLLABLE at the top of the screen A red cursor appears in the sub window when it can be controlled The following controls are operative on either window SECTOR TRAIN RANGE TILT FAST SCAN FULL HALF and CUSTOM MODE Note R B EVENT or TARGET controls may only be operated from the main window When you attempt to operate them from the sub window the message SELECT MAIN WINDOW appears TRAIN control For horizontal display Sets training center direction For vertical fan display Sets direction of bearing cursor shown on the horizontal mode display 3 16 SECTOR control For the vertical fan display When the display sector is 6 minimum the tilt angle of the horizontal and vertical fan modes are interlocked and each transmission on the horizontal display is reflected on the vertical fan display The message TILT ANGLE MONITOR WINDOW momentarily appears on the screen and the vertical bearing cursor disappears Note Only the SECTOR control may be operated in this condition The size of the vertical scan and horizontal displays and the location of the vertical scan display may be changed as desired Press the es key to change the arrangement as in the figure
74. lose the menu Correct Level too high Distance too high Figure 3 14 Examples of proper and improper TVG 3 11 2 Suppressing noise and interference You may encounter occasional or intermittent noise and interference as shown below This is mostly caused by electrical equipment engine propeller noise from own ship or noise from other sonars being operated nearby If interference appears turn on the interference rejector in the COM1 menu to suppress it Interference rejector ON p Interference In this display interference shows itself every 6 Figure 3 15 Appearance of interference 3 11 3 12 Vertical Menu Overview This section presents an overview of the items on the VERT menu 1 Press the MENU key to open the menu 7 Press A to select MENU and then press 4 or gt to select the VERT menu MENU COM1 COM2 HORZ MEI ES PRESET SYS TVG LEVEL TVG DISTANCE GAIN ADJUST RES COLOR CLUTTER HORZ RANGE V SELECT 4 P CHANGE MENU END Figure 3 16 VERT menu 8 Press A or v to select item desired 9 Press to show corresponding dialog box 10 Press 4 or P to select option desired 11 Press the MENU key to register your selection and close the menu 3 12 1 Vertical menu description TVG LEVEL Compensates for propagation loss of sound in water The default setting is 4 0 TVG DISTANCE As above Default setting is 4 0 GAIN ADJUST Compensates for too weak or too strong echo l
75. lt angle and beam coverage frequency 60 kHz vertical beamwidth 12 at 3 dB a m ange m 00 200 300 400 0 00 400 600 800 CPTEREEEERREFHREHRRH 40 80 um n E l MIU 22 200 400 Vertical width of sonar beam Figure 2 9 Tilt angle and beam coverage 2 7 Selecting the Training Speed The training speed selects how fast the transducer scans the sounding sector Two choices are available normal speed default setting and high speed and one may be selected with the FAST SCAN key Each time the key is pressed NORM normal speed or FAST high speed momentarily appears at the screen top Normal 6 High 12 60 transmissions required to complete full 360 picture default setting 30 transmissions required to complete the full 360 picture The time necessary to train a full circle depends on range and transducer used The table below shows the time required to complete one full circle in the horizontal mode using the 150 kHz transducer Ranges 1 2 4 5 6 7 8 9 10 11 12 13 14 15 Unit m 10 20 40 60 80 120 160 200 250 300 400 500 600 800 1000 ft 40 80 120 200 300 400 500 600 700 800 1000 1500 2000 2500 3500 Time required Norm 7 7 7 7 7 10 13 16 20 24 32 40 48 64 81 sec fo
76. lt setting or azimuth for the echo sounder and vertical fan modes The default setting is TRUE Requires heading data NORTH MARK Turns the north marker on or off default setting Requires heading data CSE DATA Selects heading data source navigator or gyrocompass to draw ship s track The default setting is navigator For heading sensor or gyrocompass connection choose gyrocompass NAV DATA Selects source of position data GPS Loran C Loran A DR Dead Reckoning Decca or Others for equipment not shown receives talker only Default setting is GPS TVG CORRECTION Changes TVG curve to compensate for attenuation absorption of ultrasonic wave in water OFF default setting standard TVG curve 1 2 1 2 of the theoretical absorption value added to TVG curve and 1 1 full theoretical absorption value added to TVG curve UNIT Selects unit of depth measurement meters default setting feet fathoms passi braza Hiro TEMP Selects unit of water temperature measurement C default setting F TARGET L L Turn on to output event marker position to external equipment Requires heading and latitude and longitude data from external equipment Default setting is OFF CUSTOM KEY Selects function of custom mode keys preset default setting or short cut For details see paragraph 5 2 on page 5 3 EMPHASIS MODE Turn on to stretch strongest strength echo in range direction Default setting is OFF ETA MARK A vector lin
77. ment echo sounder 4 10 horizontal 2 17 vertical fan 3 12 GAIN control 1 7 H Heading indication 5 11 Horizontal range vertical fan mode 3 13 Horizontal range marker vertical fan 3 9 Horizontal history display 2 25 HORZ maeLu nk croco o qood es 2 17 Hull unit maintenance 6 2 1 Interference 3 11 L L riguage ice rererere 5 20 M MAIN SUB 2 25 3 16 Maintenance h ll UI acini nete doi de 6 2 6 1 replacement of fuse 6 3 6 3 MENU 1 7 MeRU t 66 2 t ree esee ro der rt torte erts M 1 N Navigation dala oiii eite ceceotcer 5 11 North 5 11 P Position display format 5 10 POWER 1 3 PRESET menu 5 6 Pulselengthi 2 9 R R B key echo sounder mode 4 7 horizontal
78. n like an echo sounder Each time the Range control is operated the newly selected range briefly appears in large characters at the screen top Range is always displayed at the right hand corner of the screen Note 1 Unit of range measurement may be selected for meters feet fathoms passi braza or Hiro Japanese with UNIT on the SYSTEM SETTING 1 menu For details see page 5 10 Note 2 Ranges may be freely preset as desired For details see page 5 14 2 4 Selecting Sector Width Sector means the width of the transducer training D m Display sector shown 96 Q V J Figure 2 4 Display sector The SECTOR control selects the training display area among the sixteen positions shown in the table below Clockwise rotation of the control increases the sector width counterclockwise rotation decreases it 1 2 3 4 5 6 7 8 9 lo u bk By 4 15 16 Sector with 6 4 4 amp 72 120 144 168 192 216 240 264 288 312 336 360 In the full circle mode 360 the direction of training is clockwise in the half circle mode the direction is clockwise to counterclockwise alternately One touch selection of 360 sector Each pressing of the FULL HALF key alternately selects 360 sector full circle or 168 sector half circle If the SECTOR control is operated following the selection of the full circle dis
79. ncement speed echo sounder Adjusts receiver e Controls tilt angle sensitivity Selects center direction of the vertical scanning sector Selects width of pin Turns target lock on off training sector Omnipad Shifts cursor Selects menu items options t CSECTOR CTRAIN_ CRANGE C Tut we e 05 o T5 eu 5089 Cle J DISPLAY MODE CUSTOM MODE N Lowers the transducer Select display mode Provide short cut key or one touch Opens closes setup menu Adjusts display Inscribes erases event brilliance marker Alternately selects main Inscribes erases range and sub windows in and bearing markers combination displays Horizontal Video Plotter Horizontal Vertical Fan Horizontal History Horizontal Strata 95 CRC 65 89 DISPLAY MODE Horizontal Echo Sounder Expanded Horizontal Vertical Fan Figure 1 1 Control unit 1 1 1 2 Remote Controller The Remote Controller CH 256 option provides armchair control over range tilt target lock and range of sounding Select tilt angle Select display range Selects range of sounding for full circle 360 horizontal mode or half circle 180
80. nsor track markers data Current vector oe North marker Sweep indicator W Shows train position in horizontal mode Figure 2 2 Typical horizontal mode display With the tilt angle lowered your ship is at the center the bottom which appears in reddish brown color is displayed as a circle and fish echoes appear within the circle 2 3 Selecting the Range The RANGE control selects the detection display range Select the range according to either the fish species being searched or the depth desired 15 ranges are available and minimum and maximum ranges depend on the transducer used SEA SURFACE Range indicated On the screen Figure 2 3 How to select the range Default horizontal mode range settings Range 60 kHz 88 kHz 150 kHz m ft m ft m ft No 1 10 40 10 40 10 40 No 2 20 80 20 80 20 80 No 3 40 120 40 120 40 120 No 4 80 200 80 200 60 200 No 5 120 300 120 300 80 300 No 6 160 400 160 400 120 400 No 7 200 500 200 500 160 500 No 8 250 600 250 600 200 600 No 9 300 800 300 800 250 700 No 10 400 1000 400 1000 300 800 No 11 500 1500 500 1500 400 1000 No 12 600 2000 600 2000 500 1500 No 13 800 3000 800 2500 600 2000 No 14 1200 4000 1000 3500 800 2500 No 15 1600 5000 1200 4000 1000 3500 Normally the range is set so that the bottom is traced at the lower part of the scree
81. o MENU Press 4 to select 1 SYSTEM SETTING 1 2 Display the SYSTEM menu and press A or Y to select SYSTEM SETTING POSITION TRACK CURRENT DATA SHIP S SHIP S LOP CURSOR L L OFF FLOW FROM FLOWTO HEADING INDICATION TRUE AZ NORTH MARK CSE DATA NAV DATA TVG CORRECTION UNIT TEMP TARGET L L CUSTOM KEY EMPHASIS MODE ETA MARK OFF ON GYRO P LoranC Lorana DR DECCA OTHERS 1 2 1 1 ft fa HIRO P B oF ON PRESET KEY SHORT CUT KEY OFF RED OFF 10sec 30sec 1 3min 6min W sELECT lt q CHANGE MENU END Figure 5 8 System setting 1 menu SYSTEM SETTING 1 menu description POSITION Chooses how to displays ship s position latitude and longitude Decca Loran LOP or Cursor L L The connected navigator must be capable of displaying L L or LOP The default setting is latitude and longitude Position data required TRACK Turns the track display on or off on the horizontal display The track is always shown on the video plotter display regardless of this setting CURRENT DATA Turns current data tide on or off FLOW FROM shows from what direction the current is flowing FLOW TO shows the direction the current is heading The default setting is OFF Requires connection of a current indicator 5 10 Current Vector FLOW FROM FLOW TO Figure 5 9 Current vector HEADING INDICATION Selects heading indication format true defau
82. o adjust TVG 1 Press the MENU key to open the menu 2 Press A to select MENU and then press 4 or to select the ES menu COM1 COM2 HORZ VERT S PRESET TVG LEVEL TVG DISTANCE GAIN ADJUST RES COLOR CLUTTER A SCOPE W sELECT 4 CHANGE Figure 4 7 ES menu MENU END 3 Press or Y to select TVG DISTANCE and press P The following dialog box appears TVG DISTANGE 4 Press 4 or to adjust TVG distance TVG Distance 0 0 5 10 15 20 25 30 35 40 45 50 10 0 Setting Meters 3 8 20 40 60 100 130 160 200 250 320 1000 Feet 10 30 70 130 210 330 410 520 660 820 1040 3280 Passi braza 2 5 10 20 40 60 80 100 120 150 180 600 Hiro 2 5 10 20 40 60 80 100 130 170 210 660 Press A or v to close the dialog box and return the ES menu To suppress reflections by the sea surface or plankton select TVG LEVEL and press P 5 6 7 Press 4 or to adjust TVG LEVEL 8 Press the MENU key to register your selection and close the menu 4 10 2 Finding echo strength A scope display The A scope display shows echoes at each transmission with amplitudes and tone proportional to their intensities on the right 1 4 of the screen It is useful for estimating the kind of fish school and bottom composition 1 2 3 4 5 Press the MENU key Press A to select MENU Press 4 or gt to
83. ols are operational 1 Display the SYS menu 2 Select DEMO MODE 3 Press P to open the menu DEMO MODE DEMO MODE ON b CHANGE MENU END Figure 5 22 Demo mode menu 4 Select OFF or ON as appropriate and press the MENU key DEMO appears at the top of the screen when the demonstration mode is active 5 21 5 4 12 Restoring all default settings The item DEFAULT lets you restore all default menu settings Select YES and press the MENU key to restore all default settings Note that settings stored in SYSTEM BACKUP are not disturbed DEFAULT ARE YOU SURE NOTE RESET ALL THE SETTINGS INCLUDED IN SYSTEM MENU TO DEFAULT Figure 5 23 Default menu A CAUTION All default settings will be restored If necessary jot down settings which must be restored 5 22 6 MAINTENANCE TROUBLESHOOTING This chapter provides information necessary for keeping the equipment in good working order WARNING ELECTRICAL SHOCK HAZARD Do not open the equipment Only qualified personnel should work inside the equipment 6 1 Preventive Maintenance Check the following points monthly e Check all cables If damaged replace e Check connectors at rear of each unit Clean if necessary e Check earth of each unit Clean if necessary e Check voltage of ship s mains to be sure it is within the equipment s power rating 6 2 Cleaning the Equipment Dust or dirt can be removed from the e
84. ontal picture appears in the main window the strata picture in the sub window The strata picture shows bottom undulatons in different colors It is useful in bottom trawling to avoid projections Chapter 2 Figure 1 4 Display modes 1 7 Adjusting the Gain The GAIN control adjusts the sensitivity of the receiver Normally the control is adjusted so that the bottom echo is displayed in reddish brown mixed with red Initially set the gain between 4 and 6 and then fine tune depending on fishing ground etc Too Low Proper Too High Figure 1 5 How to adjust the gain 1 8 Basic Menu Operation The menu consisting of six menus mostly contains items which once preset do not require frequent adjustment Below is the procedure for basic menu operation 1 Press the MENU key to open the menu Note Either PRESET default setting SHORT CUT appears between ES and SYS at the top of the screen depending on the setting of CUSTOM KEY on the SYSTEM SETTING 1 menu and they set the function of the custom keys 1 2 3 For further details see pages 5 3 through 5 7 HORZ VERT ES PRESET SYS DELETING TRACK WHITE MARKER SIG LEVEL COLOR BKGD COLOR V SELECT 4 P CHANGE MENU END Figure 1 6 COM2 menu 1 7 1 8 The last used menu is displayed In Figure 1 6 the COM2 menu is selected To select a different menu press A to select MENU at the top of the screen and then press 4 or P to s
85. play the next pressing of the FULL HALF key presents the full circle display Sector set with SECTOR control Full circle Half circle FULL HALF FULL HALF key ke 168 e y Figure 2 5 How the FULL HALF key works 2 5 Selecting Train Center The TRAIN control selects the center direction of the detection range The range of adjustment is 0 to 354 in increments of 6 The selected bearing is shown with a filled circle the train indicator on the bearing scale 0 360 gt 6 gt 12 gt 18 gt 354 Train indicator Sector V P Figure 2 6 Train center 2 6 Selecting the Tilt Angle The tilt angle shown the direction to which the Sounding beam sound wave is emitted When the sound wave is emitted horizontally the tilt angle is said to be 0 and when emitted vertically 90 0 Horizontal direction Transducer Tilt anale setti To set a tilt angle operate the TILT control g e sering range Watch the tilt angle indication and tilt angle indicator at the top right corner of the screen The tilt angle can be set in increments of 1 from 0 to 5 upward to 0 to 90 downward 90 Vertical direction Select tilt angle depending on target fish For surface fish select a narrow angle about 5 and for bottom fish a wide angle about 40 2 6 1 Bottom echo and tilt angle Ref
86. preset speed For further details about the automatic retraction feature see AUTO RETRACTION on page 5 12 Note 2 An alarm may sound depending on ship s speed For details see page 5 13 1 4 1 5 Adjusting Screen Brilliance Panel Dimmer Screen brilliance can be adjusted in nine steps and panel dimmer backlighting in four 1 Press the BRILL key to open the dialog box for screen brilliance and panel dimmer Do the next step within four seconds otherwise the dialog box will be erased 4 gt BRILL3 MEEO wv DIMMER 3 BM E HL Figure 1 3 Brilliance panel dimmer dialog box Operate 4 or to adjust screen brilliance 0 is the lowest brilliance 9 the highest Note that continuous pressing of the BRILL key also changes the brilliance level Operate A or v to adjust the panel dimmer 0 is the lowest level 4 is the highest Press the MENU key to register settings and close the dialog box Note that the dialog box is automatically erased if there is no control operation within about four seconds Note 1 The brilliance of a commercial monitor cannot be adjusted with the BRILL key Use the associated control on the monitor Note 2 For the supplied monitor unit if you turn off the power with the brilliance set at minimum the screen will show nothing at next power up In this case press the BRILL key several times 1 5 1 6 Selecting a Display This sonar has eight display modes and you may select one
87. quipment with a soft dry cloth Do not use chemical cleaners to clean the equipment they can remove paint and markings Wipe the LCD carefully to prevent scratching using tissue paper and an LCD cleaner To remove stubborn dirt use an LCD cleaner wiping slowly with tissue paper so as to dissolve the dirt Change paper frequently so the dirt will not scratch the LCD 6 3 Hull Unit Maintenance 6 3 1 Lubrication Grease the raise lower screw shaft once a year Also grease the raise lower main shaft upper part of the grease cotton retainer twice a year These parts can be accessed by removing the raise lower drive assembly cover 6 3 2 Manually raising lowering transducer A WARNING Turn off the power at the ship s mains switchboard before conducting the procedure below Rotating motor can cause bodily injury 1 Turn off the breaker on the hull unit 2 Set 19 mm ratchet wrench to nut and turn 3 Check that the transducer raises and lowers smoothly from the upper to the lower limit positions If the transducer cannot be raised smoothly do not use excessive force the shaft may bend causing damage to other components 4 Check soundome and tank Remove marine life with fine sandpaper or piece of wood Attach ratchet wrench here Figure 6 1 Hull unit 6 4 Transducer Maintenance When the ship is dry docked remove marine growth from the transducer with fine sandpaper or a piece of wood A CAUTION
88. r ful Fas 7 7 7 7 7 9 t 13 15 17 21 25 28 36 45 circle Note1 Above data for soundome having serial no 1000 and higher Note2 2 8 Finding Echo Position with the Cursor The range setting must be at least 160 m to active high speed training using the 150 kHz transducer The FAST SCAN key is inoperative when the range setting is less than 160 meters The cursor measures horizontal range depth and bearing Operate the Omnipad to place the cursor where desired Cursor position data appears at the top left hand corner on the screen Horizontal range Depth B Bearing Cursor position data 4 NAV DATA Cursor Figure 2 10 Location of cursor position data 2 9 Event Marker The event marker functions to mark important locations on the screen and five event markers may be inscribed Each time the EVENT key is pressed the latest event marker is inscribed at the cursor location and all previously entered event markers are shown by the previous event marker When the capacity for event markers is reached the eldest event marker is erased from the screen to make room for the latest Note 1 With position data the event marker moves with ship s movement The event marker can be inscribed without position data however it will be stationary Note 2 The event marker cannot be inscribed from the sub window strata history and video plotter displays It
89. ring markers 1 Operate the Omnipad to place the cursor on the location desired 2 Press the R B key to display the range and bearing markers Horizontal range depth and bearing to the cursor location are shown at the bottom right hand corner of the screen 3 To erase the range and bearing markers place the cursor outside the display area and press the R B key or place the cursor on the range or bearing marker and press the R B key Bearing marker Range marker and bearing markers data Horizontal range J Depth B Bearing from ship s bow Figure 2 12 Range and bearing markers 2 11 2 11 Adjusting the Picture 2 11 1 Suppressing bottom and surface reflections In shallow fishing grounds excessive sea surface and bottom reflections often interfere with wanted fish echoes and they cannot be eliminated sufficiently with the TVG controls In such cases try to reduce the output power without turning down the gain The picture becomes clearer when output power is reduces rather than when the gain is decreased 1 Press the MENU key to open the menu 2 Press A to select MENU and then press 4 to select the COM1 menu SYS TX POWER PULSELENGTH TX RATE INT REJECT AGC AUDIO LEVEL V SELECT 4 P CHANGE MENU END Figure 2 13 COM1 menu 3 Press A or v to select POWER and press P The following dialog box appears TX POWER MIN 4 Pre
90. s always inscribed at own ship position on the horizontal and video plotter displays regardless of the location of the mark on the echo sounder display Note 2 Event marker position can be output to external equipment and marked on the display of the external equipment Each press of the EVENT key outputs event marker position For details see TARGET L L on page 5 11 Note 3 Event markers are automatically erased as they move off the screen with picture advancement 4 8 1 Inscribing the event marker 1 Operate the Omnipad to place the cursor on the location desired for an event marker 2 Press the EVENT key to inscribe the event marker Display area Previous event a NAV DATA or A SCOPE i 7 DISPLAY Depth Water Temp Display E Latest event marker NC To delete all event markers place the cursor outside the display area and press the EVENT key Figure 4 5 How to inscribe delete the event markers 4 8 2 Deleting all event markers All event markers can be erased from the screen as follows 1 Operate the Omnipad to place the cursor outside the display area 2 Press the EVENT key to show the following dialog box Do the next step within four seconds otherwise the dialog box will be erased DELETE EVENT MARK YES 3 Press P to select YES and press the MENU key All event markers are erased from the screen 4 9 Range Marker The range marker functions to
91. splay Inscribe the markers from the horizontal display to show it in the vertical fan display 1 Operate the Omnipad to place the cursor on the location desired 2 Press the R B key to display the depth and horizontal range markers Horizontal range and depth appear on the screen 3 To erase the depth and horizontal range markers press the key again or place the cursor on the depth or horizontal range marker and press the R B key 2t Horizontal range NAV marker DATA Horizontal range Depth Depth marker Figure 3 12 Depth and horizontal range markers 3 11 Adjusting the Picture 3 11 1 Displaying weak echoes clearly Echoes from targets such as the bottom or a fish return to the transducer in order of the distance to them and when their intensities are compared at the transducer face those from nearer targets are generally stronger when their reflecting properties are nearly equal The sonar operator will be quite inconvenienced if these echoes are directly displayed on the screen since he won t be able to judge the actual size of the target from the size of echoes displayed on the screen To overcome this inconvenience use the TVG function It compensates for propagation loss of sound in water amplification of echoes on short range is suppressed and gradually increased as range increases so that similar targets are displayed in similar intensities irrespective of the
92. ss P to select MIN For long range detection be sure to return the setting to MAX 5 Press the MENU key to register your selection and close the menu 2 12 2 11 2 Suppressing bottom tail As described earlier fish schools near the bottom are sometimes difficult to detect because you have to discriminate fish echoes from the bottom reflections To discriminate fish echoes near the bottom select the short Tx pulselength on the COM1 menu to decrease the tail of bottom reflections 1 Press the MENU key to open the menu 2 Press A to select MENU and then press lt to select the COM1 menu 3 Press A or v to select PULSELENGTH and press P The following dialog box appears PULSELENGTH SHORT 4 Press to select SHORT 5 Press the MENU key to register your selection and close the menu 2 11 3 Displaying weak echoes clearly Echoes from targets such as the bottom or a fish return to the transducer in order of the distance to them and when their intensities are compared at the transducer face those from nearer targets are generally stronger when their reflecting properties are nearly equal The sonar operator will be quite inconvenienced if these echoes are directly displayed on the screen since he won t be able to judge the actual size of the target from the size of echoes displayed on the screen To overcome this inconvenience use the TVG function It compensates for propagation loss of sound in water amplific
93. t COM2 Press A or v to select SIG LEVEL Press to open the dialog box SIG LEVEL OFF 1 14 8 color display OFF 1 6 OFF 1 14 16 color display OFF 1 14 Press 4 or to select echo color to erase Pressing erases echoes from weak to strong in ascending order of strength You can also see which echo color is erased by watching the color bar Press the MENU key to register your selection and close the menu 2 15 2 11 5 Enlarging fish echoes expand horizontal display Fish echoes may be enlarged 1 5 times by using the expanded horizontal display Press the key to show the expanded horizontal display The direction of expansion depends on the train direction as below Train center direction Position after expansion Remarks 318 42 Moves to screen bottom For viewing forward 48 123 Moves to left side of screen For viewing starboard side 138 222 Moves to screen top For viewing aft 228 312 Moves to right side of screen For viewing port side Sector marker Tilt angle Cursor position data Range TAARI LL Train position CR u i 34 12 343 wb m 134 34 213 W CSE 357 SPD 9 9 kt DEP 35m TMP 12 3 C Own ship A P if EHE CUR un marker ta uM ER GAIN 5 3 TVG LEVEL 4 0 DISTANCE 200 m COLOR Cursor Figure 2 16 Expanded horizontal display 2 16
94. ta display is equal to one train on the horizontal Color E aS dd E When the bottom is flat the horizontal display inscribes the bottom as a true circle and the strata display inscribes the color of point a The color of this position on the color bar is the color of point a on the strata display Figure 2 30 Flat bottom and strata display 2 31 Projection in fore direction and strata display Color b on the color bar is displayed here STBD 90 3 Color a on 90 PORT the color bar Figure 2 31 Projection in fore direction and strata display Depth becoming shallower gradually in fore direction and strata display Color c Color b 90 PORT STBD 90 z Color a Color b i Color d M Color a Color c Figure 2 32 Depth becoming shallower gradually in fore direction and strata display Depth becoming deeper gradually in fore direction and strata display a bc cb Color a 90 Color a Color c Figure 2 33 Depth becoming deeper gradually in fore direction 2 32 3 VERTICAL FAN MODE 3 1 Operational Overview The figure below shows the typical vertical fan mode operating sequence 1 Turn on the power 6 Set center bearing of train 8 Set tilt angle sector 7 a Set scanning sector 5 Set range 11 Adjust menu settings 9
95. tern To quit the test pattern press the MENU key three times MENU TREE MENU key VERT menu ES menu TX POWER MAX MIN PULSELENGTH LONG SHORT TX RATE EXTERNAL 1 10 10 INT REJECT OFF ON DEFAULT SETTINGS AGC OFF ON SHOWN IN BOLD ITALIC AUDIO LEVEL 0 10 DELETING TRACK NO YES WHITE MARKER 8 color OFF 1 7 16 color OFF 1 15 SIG LEVEL 8 color OFF 1 6 16 color OFF 1 14 COLOR 16 8 BKGD COLOR 1 2 3 TVG LEVEL 0 10 4 0 TVG DISTANCE 0 10 4 0 GAIN ADJUST 10 10 0 RES COLOR LOG LINEAR SQUARE CUBE CLUTTER 0 1 2 3 TARGET KEY REVERSE POS ECHO LOCK MODE AUTO MANUAL AUTO TILT OFF 2 4 6 10 TVG LEVEL 0 10 4 0 TVG DISTANCE 0 10 4 0 GAIN ADJUST 10 10 0 RES COLOR LOG LINEAR SQUARE CUBE CLUTTER 0 1 2 3 HORZ RANGE 1 x2 TVG LEVEL 0 10 4 0 TVG DISTANCE 0 10 4 0 GAIN ADJUST 10 10 0 RES COLOR LOG LINEAR SQUARE CUBE CLUTTER 0 1 2 3 A SCOPE OFF ON When SHORT CUT KEY is selected at SYSTEM SETTING 1 menu SHORT CUT menu PRESET menu Default setting CONTINUED ON NEXT PAGE KEY1 VER SEARCH VOLUME DEL TRACK AUTO TILT BKGD SIG LEVEL CLUTTER RES COLOR WHITE MARKER KEY2 Same choices as KEY1 Default setting VOLUME KEY3 Same choices as KEY1 Default setting DEL TRACK CUSTOM MODE HORIZONTAL EXPANSION SECTOR 240 TRAIN
96. terpreting the Horizontal Display ereet ette 2 24 3 VERTICAL FAN MODE n nnn S 3 1 3 1 Operational QVOrVviOW axi opes idea Eee ER ee eas 3 1 3 2 Typical Vertical Fan Mode Display ditt ster nini der ten Enn 3 2 3 8 Selepting the Range nets Raed te EE DO re eid ai o ii n dua o usu ees 3 3 3 4 Selecting Train 3 4 25 Selecting Display SeCclOE qno pit paced Pate oce acu E Ru 3 5 3 0 Gelgoling Sector Centen ribs iuter 3 6 3 7 Selecting the Training Speed roo oe irae aa ee RNs ARR D ees 3 7 3 8 Finding Echo Position with the 3 7 3 9 Event Markl ui porti odor e ts doa oen mx ede se tg dette dern 3 8 3 10 Depth and Horizontal Range Markers e 3 9 3 11 Adjusting the Picture 22 ieee deo we eta tbe dp t 3 10 3 12 Vertical Menu OVGIVIGW iuncti tet rade de ERE X XR d KU 3 12 3 13 Interpreting the Vertical Fan Display eerte 3 13 4 ECHO SOUNDER iiisccssccsetiiscsssssccsscssssscsssssssssssssssdedacesesssssseneee 4 1 4 1 Operational 4 1 4 2 Typical Echo Sounder Display noo o Ee ero OA FER TRE ce vea dua 4 2 4 3 Selecting the Range i e e E ate PH HR etna 4 3 ALA Train Dit Ctlons RE 4
97. trata display may be adjusted with the RANGE and SECTOR controls Press the MAIN SUB key to select the main or sub window The message MAIN WINDOW CONTROLLABLE or SUB WINDOW CONTROLLABLE appears with each pressing of the key A red cursor appears the sub window when it can be controlled 2 30 Color bar for the strata display The depth of the bottom each in all directions is displayed in the sub window in the colors set by the color bar for the strata display The color bar for the strata display shows search angle range below 336 degrees Strongest Weakest color color 90 18 12 6 0 6 12 18 90 o O M Bae The undulation of the bottom echo in all directions Color bar for is shown by the colors on the color bar for the strata display strata display The position of the weakest echo can be changed with the RANGE control and the width of each color on the color bar for the strata display with the SECTOR control Use the SECTOR control to adjust width of each color gt P Weakest color lt gt Use the RANGE control to move the location of the weakest echo color Note TILT TRAIN FULL HALF FAST SCAN R B EVENT TARGET CUSTOM MODE controls may only be operated from the main window When you attempt to operate them from the sub window the message SELECT MAIN WINDOW appears for about four seconds Flat bottom and strata displa Each layer on the stra
98. x color LCD e Target lock on a fish school or stationary position reef etc e Audible detection of echoes frees the operator from continuous watch of the display e Compact display and hull units permit installation where space is limited e Interface IF 8000 permits use of a commercial monitor instead of standard display unit e Automatic pulselength switching for optimum performance in short and long ranges e Eight operational modes Horizontal Expanded Horizontal Vertical Fan Echo Sounder Horizontal Vertical Fan History Video Plotter and Strata Automatic retraction of transducer at operator selected ship s speed between 5 and 15 knots CUSTOM MODE keys provide one touch setup of the equipment or short cut key function Tracing of ship s track with connection of position fixing equipment GPS etc One of the echo strengths may be displayed in white to enhance the specific echo level e The Vertical Search feature provides a cross sectional view of the vertical plane which is useful for evaluating fish school concentration Usage Precautions vi The Motion Sensor MS 100 compensates for ship s pitching and rolling However it does not compensate for load unbalance If the equipment will not be used for a long time shut off the power to it at the mains switchboard to prevent battery discharge If the soundome is to be operated while the ship is dry docked set the transmitter output power to minimum on th
99. y from eyes Wear pro tective gloves when working with the oil The oil can cause inflammation of the eyes Do not touch the oil Wear protective gloves when working with the oil The oil can cause inflammation of the skin Do not ingest the oil Diarrhea and vomiting may result Keep the oil out of reach of children Emergency procedures f the oil enters eyes flush with clean water about 15 minutes Consult a physician e f the oil is ingested see a physician immediately Disposal of oil and its container Dispose of oil and its container in accord ance with local regulations For further details contact place of purchase Storage Seal container to keep out foreign material Store in dark cool place The high quality TFT Thin Film Transistor LCD displays 99 999 of its picture ele ments The remaining 0 0196 may drop out or light however this is an inherent property of the LCD it is not a sign of malfunction TABLE OF CONTENTS FOREWORD V SYSIEMCONEFIGURBATION Doe vii 1 OPERATIONAL OVERVIEW 2 2 1 1 1 1 Control Descriptions eee rer C n e Rh S E i ee ern de ve n LO ds 1 1 1 2 Remote Controller uoc et xa mtu v po diede RE OQ que RP ER RE dn 1 2 1 3 Turning the Power tates tte reco EE eer he a eka ee 1 3 1 4 Raising Lowering the Transducer a ee eret retener ret n

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