Furuno CH-250 Manuel d'utilisateur Page 1

COLOR LCD SEARCHLIGHT SONARCH-250

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5-20 5.4.7 Language Menu language can selected from among the languages shown in the Language menu and the default language is English. JAPANESE ENGL

5-215.4.10 Transducer frequency adjustment If the CH-250 is receiving interference from a video sounder or other sonar on board your ship, adjust th

5-22 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 resto

6-16. MAINTENANCE, TROUBLESHOOTING This chapter provides information necessary for keeping the equipment in good working order. WARNINGELECTRICAL SHO

6-2 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

6-36.4 Transducer Maintenance When the ship is dry-docked remove marine growth from the transducer with fine sandpaper or a piece of wood. CAUTIONDo

6-4 6.6 Troubleshooting The table below provides common symptoms of equipment troubles and the means to rectify them. Symptom Check, Remedy Cannot tu

6-56.7 Error Messages The table below shows the error messages which may appear on the display. All error messages are accompanied by an audio alarm,

6-6 6.8 Diagnostics 1. Press the [MENU] key to open the menu. 2. Press to select MENU, and then press to select SYS. 3. Press to select GO TO

6-7• TRAIN shows a figure between 355-359 if normal. NG appears in case of train error. • TEST COUNT shows the number of times the test has been

1-11. OPERATIONAL OVERVIEW 1.1 Control Description Turns the power on/off.Lowers the transducer.Adjusts receiversensitivity.Selects center bearing of

6-8 6.9 Test Pattern A test pattern can be displayed to check for proper display of colors. 1. Press the [MENU] key to open the menu. 2. Press to

M-1MENU TREE [MENU] key TX POWER (MAX, MIN)PULSELENGTH (LONG, SHORT)TX RATE (EXTERNAL, 1-10; 10)INT REJECT (OFF, ON)AGC (OFF, ON)AUDI

M-2SYSTEM SETTINGRANGE-SONAR MODE (all default ranges)60 kHz (min. range: m, 10: ft, 40; fa, p/b, hiro, 5. max. range: m , 1600; ft, 5000,

SP - 1 E1316S01H SPECIFICATIONS OF 10.4 INCH COLOR LCD SEARCHLIGHT SONAR CH-250 1 GENERAL 1.1 Display System 10.4 inch Color LCD 1.2 Tr

SP - 2 E1316S01H 2.7 Marker Range and Bearing to Waypoint 2.8 Indication Unit Meter, feet, fathom, P/B 2.9 Audio Monitor 2 W output (

SP - 3 E1316S01H 4.6 Vertical Fan Mode Control Scanning Angle 6° to 180°, 12° step Scanning Center 0° to 180°, 6° step Scanning Step Ang

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IN-1INDEX A AGC ...5-2 A-scope display ...4-9 Automatic tilt..

IN-2 replacement of fuse...6-3 transducer...6-3 MENU key ...

1-2 1.2 Remote Controller The Remote Controller CH-256 (option) provides armchair control over range, tilt, target lock and range of sounding. Select

1-31.3 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 th

1-4 1.4 Raising, Lowering the Transducer 1.4.1 Lowering the transducer With the boat at the fishing ground, press the [↓] switch to lower the trans

1-51.5 Adjusting Screen Brilliance, Panel Dimmer Screen brilliance can be adjusted in nine steps and panel dimmer (backlighting) in four. 1. Press

1-6 1.6 Selecting a Display This sonar has eight display modes and you may select one with one of the DISPLAY MODE keys. Refer to the chapter shown

1-71.7 Adjusting the Gain The [GAIN] control adjusts the sensitivity of the receiver. Normally, the control is adjusted so that the bottom echo is d

1-8 2. The last-used menu is displayed. (In Figure 1-6 the COM2 menu is selected.) To select a different menu, press to select MENU at the top of

2-12. HORIZONTAL MODE 2.1 Operational Overview The figure below shows the typical horizontal mode operating sequence. 2. Lower thetransducer.9. Adjus

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

2-2 2.2 Typical Horizontal Mode Display 25R 40 mT 40˚1613B208˚+ CSE 357˚ SPD 9.9 kt DEP 35 m TMP

2-32.3 Selecting the Range The [RANGE] control selects the detection (display) range. Select the range according to either the fish species being se

2-4 2.4 Selecting Sector Width Sector means the width of the transducer training. 96°Display sector(shown: 96˚) Figure 2-4 Display sector The [SECTO

2-52.5 Selecting Train Center The [TRAIN] control selects the center direction of the detection range. The range of adjustment is 0° to 354° in incr

2-6 2.6.1 Bottom echo and tilt angle Refer to the illustration below. Case1: Tilt angle 30°°°° to 40°°°° This tilt angle will display the entire bo

2-7Points to consider Normally, a vertically distributed fish school is a better sonar target than the bottom, because it reflects the transmitted pu

2-8 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

2-92.7 Selecting the Training Speed The training speed selects how fast the transducer scans the sounding sector. Two choices are available, normal

2-10 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 [E

2-112.9.2 Deleting all event markers All event markers can be erased from the screen as follows: 1. Operate the Omnipad to place the cursor outside

iSAFETY INSTRUCTIONSWARNINGWARNINGELECTRICAL SHOCK HAZARDDo not open the equipment.Only qualified personnelshould work inside theequipment.Immediatel

2-12 2.11 Adjusting the Picture 2.11.1 Suppressing bottom and surface reflections In shallow fishing grounds, excessive sea surface and bottom refle

2-132.11.2 Suppressing bottom tail As described earlier, fish schools near the bottom are sometimes difficult to detect because you have to discrimi

2-14 To adjust TVG: 1. Press the [MENU] key to open the menu. 2. Press to select MENU and then press to select HORZ. TVG LEVEL 4.0TVG DISTAN

2-155. Press the [MENU] key to register your selection and close the menu. 6. To suppress reflections by the sea surface or plankton, select TVG LE

2-16 2.11.5 Enlarging fish echoes (expand horizontal display) Fish echoes may be enlarged 1.5 times by using the expanded horizontal display. Press t

2-172.12 Target Lock Three types of target lock modes are available. Manual reverse: The transducer train direction is reserves manually. This is th

2-182.12.3 Position mode This mode tracks a stationary position (such as a reef) using position data fed from a navigator. Note1: This function is i

2-192.12.4 Echo mode The echo mode tracks a fish school either automatically or manually. The default setting is automatic, and you can select automa

2-20 When the fish echo is lost the tilt angle is automatically changed as below to continue tracking the echo: Tilt changed to search [(A + 10˚) → (

2-212.13 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. Pre

iiCAUTIONDo not exceed 20 knots when operatingthe equipment and do not exceed 15knots when lowering or raising thetransducer.The transducer may becom

2-22 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

2-232.14 Interpreting the Horizontal Display This section provides information necessary for interpreting the horizontal display. 2.14.1 How the hor

2-24 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

2-25Fish 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.

2-26 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

2-27Sidelobe echo (false echo) An ultrasonic wave is emitted only in the direction set by the [TILT] control, however there are some emissions outsid

2-28 2.14.3 Combination display examples Horizontal/history display Press the key to display the horizontal/history display. CursorOwn shipmarkerH

2-29Horizontal/video plotter display Press the key to display the horizontal/video plotter display. CursorOwn shipmarkerHorizontal DisplayVideo Plo

2-30 Horizontal/strata display Press the key to display the horizontal/strata display. CSE 357˚ SPD 9.9 kt 34° 12. 343

2-31Color 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 ba

iiiTABLE OF CONTENTS FOREWORD ... v SYSTEM CONFIGURAT

2-32 Projection in fore direction and strata display Color "b" on the color baris displayed here.Color "a" on the color barColor

3-13. VERTICAL FAN MODE 3.1 Operational Overview The figure below shows the typical vertical fan mode operating sequence. 2. Lower the transducer.9.

3-2 3.2 Typical Vertical Fan Mode Display +→6↓ 145R → 60 m↓ 100 m340˚Cursor positiondataHorizontal rangeVertical rangeEvent markerInterferencerej

3-33.3 Selecting the Range The [RANGE] control selects the detection (display) range, in 15 settings. Select the range according to either the fish

3-4 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

3-53.5 Selecting Display Sector Sector means the width of the transducer training, from 6° to 180°. 24˚Sector (Shown: 24˚) Figure 3-6 Sector The [SE

3-6 3.6 Selecting Sector Center The center direction of the sounding beam in the vertical direction can be changed with the [TILT] control. The sett

3-73.7 Selecting the Training Speed The training speed selects how fast the transducer scans the display sector. Two choices are available, 3° (norm

3-8 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 [EV

3-93.9.1 Deleting all event markers All event markers can be erased from the screen as follows: 4. Operate the Omnipad to place the cursor outside

iv 4. ECHO SOUNDER MODE ...4-1 4.1 Operational Overview...

3-10 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 i

3-114. Press or to adjust TVG distance, considering sea conditions. The larger the figure the greater the distance at which the TVG works. TVG

3-12 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

3-13CLUTTER: Low intensity echoes, often caused by sediments in water, are painted on the screen as a large number of random dots. The higher the num

3-14 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 w

3-15Display of net hauling This is an example of net hauling display. The location of the net is indicated clearly. FOREAFTNet Figure 3-20 Net haul

3-16 3.13.3 Horizontal/vertical fan display Press the key to display the horizontal/vertical fan display. CSE 357˚ SPD 9.9 KTR 40 mT

3-17SECTOR control For the vertical fan display: When the display sector is 6° (minimum) the tilt angle of the horizontal and vertical fan modes are

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4-14. ECHO SOUNDER MODE 4.1 Operational Overview The figure below shows the typical echo sounder mode operating sequence. 2. Lower the transducer.6.

vFOREWORD Thank you for purchasing the CH-250 Color LCD Searchlight Sonar. We are confident you will discover why FURUNO has become synonymous with q

4-2 4.2 Typical Echo Sounder Display Press the key to display the echo sounder picture. + 4R 10 mT 60°340°DEPTMP6.5 m12. 3˚CCursorpositionRa

4-34.3 Selecting the Range The [RANGE] control selects the detection (display) range, in 15 settings. Select the range according to either the fish

4-4 4.4 Train Direction The sounding beam may be directed toward fore, aft, port or starboard. Operate the [TRAIN] control to select sounding beam di

4-54.7 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

4-6 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]

4-74.9 Range Marker The range marker functions to measure the range to a target echo (fish school, bottom, etc.) 1. Operate the Omnipad to place the

4-8 TVG LEVEL4.04.0TVG DISTANCEGAIN ADJUST 0RES. COLOR LOGCLUTTER 0: SELECT: CHANGEMENU: ENDMENUCOM1 HORZ VERT ES PRESET SYSCOM2A-SCOPE OFF Figure

4-94.10.2 Finding echo strength (A-scope display) The A-scope display shows echoes at each transmission with amplitudes and tone proportional to the

4-10 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. Pr

4-11RES. COLOR: Sets transfer characteristics of input signal level versus display echo level. Echo strength is emphasized in order of CUBE, SQUARE,

vi Usage Precautions • The Motion Sensor MS-100 compensates for ship’s pitching and rolling. However, it does not compensate for load unbalance. •

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5-15. MENU OPERATION This chapter provides menu operating information on menus not previously discussed: COM1, COM2, PRESET (or SHORT-CUT, depending

5-2 5.1.1 COM1 menu description TX POWER: Selects transmitter output power to maximum or minimum. The default setting is "maximum." For fur

5-35.2 COM2 Menu 5.2.1 Displaying the COM2 menu 1. Press the [MENU] key to open the menu. 2. Press ▲ to choose MENU, and then press ◄ or ► to choos

5-4 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

5-5RANGE-SONAR MODERANGE-VERTICAL MODERANGE-E/S MODEADJ MOTION SENSOR TX FREQ ADJUSTTESTTEST PATTERNDEMO MODEDEFAULT: SELECT: MENU DISPLAY MENU: ENDS

5-6 7. Press or to select PRESET KEY or SHORT-CUT KEY as desired. 8. Press the [MENU] key twice to register your selection and close the menu.

5-75.3.3 Short-cut key The default settings are key [1], interference rejector; key [2], signal level, and key [3], background color. The operator ma

5-8 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 v

5-95.4 SYS Menu This menu provides items which may be set according to operator’s preference. A demonstration mode is provided to acquaint you with t

viiSYSTEM CONFIGURATION HULL UNITSPEAKERDATA/VIDEO OUTMOTION SENSOR12-32 VDCNote 112-32 VDCSpeakerMotion SensorMS-100VGA Ext.MonitorControl UnitDispl

5-10SYSTEM SETTING 1 menu 1. Display the SYSTEM menu and press or to select SYSTEM SETTING. 2. Press . 3. Press to MENU. 4. Press to select

5-11HEADING INDICATION: Selects heading indication format, true (default setting) or azimuth, for the echo sounder and vertical fan modes. The defaul

5-12 SYSTEM SETTING 2 menu description OFF ON OFF (OFF, 5-15kt)AUTO RETRACTION :SPEED ALARM/MESSAGE:DEFAULT SETTING :

5-13SPEED ALARM MESSAGE: Turn on (default setting) to display speed alarm message and sound the audio alarm when ship’s speed exceeds allowable speed

5-14 DEFAULT SETTING: Select YES and press the [MENU] key to restore all default system menu settings. Several beeps sound while default settings are

5-155.4.2 Sonar (horizontal) mode range settings The user may preset horizontal mode ranges as desired. 1. Select RANGE-SONAR MODE at the SYS menu

5-16 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 MO

5-175.4.4 Echo sounder mode range settings As with the horizontal and vertical fan modes, the user may preset the echo sounder mode’s ranges. 1. Se

5-18 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 pre

5-195.4.6 Color palette The color palette lets the user change the color of echoes, background, text and menu as desired. R :3** COLOR PALETTE **TEXT