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2-9

2.7 Detecting Fish Schools Aurally

Occasionally you will be preoccupied with other tasks and un-
able to concentrate on watching the sonar picture. In such cases
it would be a good choice to use the audio function. This func-
tion enables you to monitor echoes from fish schools and bot-
tom through the external speaker (option), of which the volume
can be adjusted with the AUDIO control on the sub panel 1.

After you become accustomed to utilizing the audio function,
you should be able to detect a fish school from a range longer
than you can detect it on the screen. In addition you may judge
whether the fish schools is approaching or going away; the
tone becomes higher when the fish is approaching and lower
when going away.

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Содержание CH-37

Страница 1: ...COLOR SECTOR SCANNING SONAR MODEL CH 37 ...

Страница 2: ...98 65 4200 FIRST EDITION FIRST EDITION JUL JUL 1998 1998 Printed in Japan Printed in Japan All rights reserved All rights reserved E E MAY MAY 17 2002 17 2002 PUB No PUB No OME 13030 OME 13030 00080821101 00080821101 00080821101 00080821101 TENI TENI CH 37 CH 37 0 0 0 8 0 8 2 1 1 0 1 0 0 0 8 0 8 2 1 1 0 1 OME13030E00 OME13030E00 OME13030E00 OME13030E00 O M E 1 3 0 3 0 E 0 0 O M E 1 3 0 3 0 E 0 0 ...

Страница 3: ...the top of the equipment Fire or electrical shock can result if a liquid spills into the equipment 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 lea...

Страница 4: ...ion of the skin Do not ingest the oil Diarrhea or vomiting can result Keep the oil out of reach of children Emergency If the oil enters eyes flush with clean water about 15 minutes Consult a physician If the oil contacts skin wash with soap and water If 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 regul...

Страница 5: ... Training Sector Quickly 2 11 2 10 Suppressing Bottom and Sea Surface Reflections in Shallow Fishing Grounds 2 11 2 11 Suppressing Bottom Tail 2 12 2 12 Displaying Surface Fish Clearly TVG adjustment 2 12 2 13 Relocating Fish School for Easy Observation 2 14 2 14 Finding Fish School Center 2 14 2 15 Sonar Menu Operation 2 15 2 16 E S Menu 2 16 2 17 Turning Trackline Plotting On Off 2 17 2 18 Inter...

Страница 6: ... 1 2 3 5 1 About the Custom Mode Keys 5 1 5 2 Customizing the Keys 5 1 5 3 Custom Mode Operation 5 2 MENU SETTINGS 6 1 System Setting Menu 6 1 6 2 Screen Adjustment 6 2 6 3 System Menu 6 4 6 4 Dual Menu 6 9 MAINTENANCE TROUBLESHOOTING 7 1 Maintenance of Display Unit 7 1 7 2 Maintenance of Transceiver Unit 7 1 7 3 Maintenance of Hull Unit 7 2 7 4 Display Unit Test 7 3 7 5 Train Tilt Test 7 5 7 6 Te...

Страница 7: ... resolution CRT The ex cellent signal processing technique and improved receiver bring you a clear and high quality picture on a 15 inch screen We would appreciate feedback from you the end user about whether we are achieving our purpose Thank you for considering and purchasing FURUNO equip ment Features Multi sector scanning provides quick coverage of full 360 area in just 8 transmissions PPI ope...

Страница 8: ...OUDSPEAKER SC 05WR REMOTE CONTROL BOX CH 343 External Interface OP06 13 Built in External Interface OP06 14 Built in EXTERNAL MONITOR Connector to fitted at installation Connector fitted at factory Crimp on lug to be fitted at installation MOTION SENSOR MS 100 or Clinormeter BS 704 250V DPYCYS 2 250V DPYCYS 2 24 32V DC 06S4067 15 30 50M 250V DPYCYS 2 250V DPYCYS 2 250V DPYCYS 2 External Interface ...

Страница 9: ...TH WIDTH NET MOUTH HEIGHT NET DEPTH HOR SCAN RATE VERSCAN RATE PWR key MENU key SYSTEM MENU SYSTEM SETTING RANGE VERTICAL FAN MODE RANGE SONAR MODE RANGE SHIFT E S COLOR LANGUAGE DISPLAY TEST1 ROM RAM KEY TRAIN TILT TEST SCREEN ADJUSTMENT TEST PATTERN DISPLAY TEST2 OPERATION DEFAULT 3D DISPLAY SHIP S POSITION CURRENT DATA DEPTH DATA HEADING INDICATION NORTH MARK TRACK HDG SPD DATA NAV DATA DATA FO...

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Страница 11: ... and tilt settings readjust the sensitivity For normal use set it between 3 and 5 In the sonar mode it controls the tilt angle between 5 and 90 The setting angle is set in 1 degree steps and appears at the upper right corner of the screen In the vertical fan mode it determines the sector center of vertical scanning In the sonar mode it selects the width of the transducer training sector among six ...

Страница 12: ...s panel backlighting BRILL Adjusts screen brilliance Function Description HUE Changes the background color of the display in the sequence of deep blue blue black E S Turns the E S combination display on off Optional devices required DEGAUSS The screen is automatically degaussed at the interval selected on the system setting menu To manually degauss the screen press this key FAST SCAN Changes the s...

Страница 13: ...ing the transducer However for safety purposes make it a habit to retract the transducer before turning off the power 1 3 Adjusting Screen Brilliance Panel Backlighting The BRILL control adjusts screen brilliance and the DIMMER controls adjusts panel backlighting These controls are on the sub panel 1 1 4 Lowering the Transducer Press the h switch on the main panel to lower the transducer The lamp ...

Страница 14: ...ormal full circle picture appears on the entire screen Expanded sonar mode Zoomed picture appears on the entire screen The echo size on the screen is expanded 1 5 times Normal sonar E S vertical fan or sonar Normal full circle picture appears at the upper 2 3 of the screen the echo sounder vertical fan or sonar on the lower 1 3 To select the picture to display in the lower 1 3 see DUAL MODE on pag...

Страница 15: ...y time or distance Only the latest echo is painted like the vertical mode presentation This mode may be turned on in the SYSTEM menu Vertical fan mode E S or sonar A vertical section of underwater conditions half circle area appears on the upper 2 3 and echo sounder or sonar picture on the lower 1 3 To select the picture to display in the lower 1 3 see DUAL MODE or page 6 9 Echo sounder required t...

Страница 16: ... blue blue or black with the HUE key 1 7 Degaussing the Screen The screen is automatically degaussed at the interval selected on the SYSTEM SETTING menu However when the picture or picture color appears to be distorted manually degauss the screen with the DEGAUSS key ...

Страница 17: ...rol See page 2 3 through 2 5 for details 7 Adjust the GAIN and TVG controls Gain 3 5 TVG level time 3 5 8 8 3 Adjust the NL control if a large number of small blue dots appear on the screen Normally set it between 2 and 4 9 8 Set the MODE knob to or position Select the automatic training area and center position with the SEC TOR and TRAIN controls The FULL HALF key provides a quick change of the a...

Страница 18: ...e lower part of the screen like an echo sounder SEA SURFACE Range indicated on the screen BOTTOM Figure 2 2 Range selection Table 2 1 Transducer frequency and range Freq RANGE m 60 kHz 162 kHz 81 kHz 113 kHz Range m 50 100 150 600 800 1200 1600 50 100 150 450 500 600 800 60 100 150 500 1000 800 1200 50 100 150 500 600 800 1000 Note Unit of range measurement may be changed through the SYSTEM menu F...

Страница 19: ...i tions In the full circle mode 360 the direction of training is clockwise only Table 2 2 Transducer training sector Mode Transducer Training Sector display area Sonar mode 45 90 135 180 225 and 360 Selected by FULL HALF key 90 Sector center marker Training sector Figure 2 3 Sector selection Sector step The FAST SCAN key in the sub panel 2 selects sector step in 45 or 6 ...

Страница 20: ...angle will display the entire bottom since it is captured by the full width of the beam Case 2 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 Case 3 Tilt angle 0 to 5 This tilt angle may or may not capture the bottom since the returning echo is weak How to discriminate fish echoes from the bottom The figure at the top o...

Страница 21: ...ey are not distrib uted vertically Tilt angle for surface fish Sound emitted from the sonar transducer forms an oval shaped beam with a width of approximately 13 for 60 kHz transducer in the vertical direction vertical beam width The tilt angle is indicated by the angle between the center line of the beam and the horizontal plane Then if the tilt angle is set to 0 the cen ter line is parallel with...

Страница 22: ...ilt angle 0 Sea surface Tilt angle 5 7 Sea surface 11 11 R400 T 15 Tilt angle Figure 2 5 Tilt angle and sea surface reflections 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 100 200 200 400 300 600 400 800 Range m 0 5 10 15 20 40 40 80 60 120 80 160 100 2...

Страница 23: ...le echoes Surface noise Interference Turn GAIN control clockwise Adjust NL control Adjust TVG controls Turn on IR in SONAR menu 0 2 4 6 8 10 0 2 4 6 8 10 0 2 4 6 8 10 CLEAR PICTURE Figure 2 7 How to set the gain 2 6 Rejecting Sonar Interference and Noise While observing the sonar picture you may encounter occa sional or intermittent noise and interference as shown below These are mostly caused by ...

Страница 24: ... high setting since it many also reject small wanted echoes Rejecting noise with NL control Weak unwanted reflections colored light blue or green ap pear when water is contaminated or plankton layers or noise exist These echoes gradually become bluish as the NL control is turned clockwise Usually a setting from 3 to 4 provides suf ficient reduction Rejecting interference with Tx rate When other so...

Страница 25: ...from fish schools and bot tom through the external speaker option of which the volume can be adjusted with the AUDIO control on the sub panel 1 After you become accustomed to utilizing the audio function you should be able to detect a fish school from a range longer than you can detect it on the screen In addition you may judge whether the fish schools is approaching or going away the tone becomes...

Страница 26: ...n the trackball marker on the location desired 2 Press the EVENT key to inscribe the event marker 3 To erase the marker place the trackball marker outside the echo display area and press the EVENT key Note CH 37 stores one event marker Trackball data Trackball marker Event marker R B marker 1 Position the trackball marker on the location desired 2 Press the R B key The range and bearing markers ap...

Страница 27: ... SECTOR control and FULL HALF key work 2 10 Suppressing Bottom and Sea Surface Reflections in Shallow Fishing Grounds In shallow fishing grounds excessive sea surface and bottom reflections often interfere with wanted fish echoes and they can not be eliminated sufficiently with the aforementioned TVG con trols In such cases try to reduce the output power from C to B or A on the SONAR menu without ...

Страница 28: ...g Surface Fish Clearly TVG adjustment Echoes from targets such as the bottom or a fish return to the transducer in order of the distance to them and when their in tensities 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 th...

Страница 29: ...ea on the screen as shown in the figure above To adjust the TVG 1 Set TVG time between 3 and 5 approx 130 300 m This is the standard setting and you can maintain it in most cases 2 When sea surface reflections or plankton layers disturb the picture set the TVG level control around 5 to eliminate them 3 Locate a fish school on a long range setting which is ap proaching your vessel Adjust the tilt t...

Страница 30: ...ure 2 12 How to relocate fish school 2 14 Finding Fish School Center When you want to find the center depth of a fish school change the tilt angle and observe the presentation as follows 1 Select a narrow sector range 45 and capture the target echoes 2 Adjust the tilt angle with the TILT control slowly and ob serve the change of the presentation color 3 The echo presented in the strongest color is...

Страница 31: ...ed item is highlighted and the current setting is circumscribed in white 4 To turn off the menu press the MENU key again Sonar menu description TX RATE Selects transmission repetition rate in ten steps 1 is the longest interval 10 the shortest Set to 10 for normal use TX PULSE LENGTH Selects Tx pulselength to LONG or SHORT The pulselength is adjusted automatically according to the range setting in...

Страница 32: ...olor presentation RES COLOR Sets echo presentation characteristics LOG enhances weak echoes and is normally used LINEAR downplays the weak echoes comparing with LOG It is effec tive for suppressing the plankton layer SQUARE enhances the strong echoes comparing with LINEAR resulting in clear and easy reading picture 2 16 E S Menu 1 Press the MENU key 2 Select E S at the top of the screen MENU SONAR...

Страница 33: ...o s m o r f e c n r e f r e t n i s e s s e r p p u S p i h s n w o d r a o b n o y r e n i h c a m D E E P S E C N A V D A s e n i l n a c s f o r e b m u n e h t s n o i t c a r f e h T d e e p s e c n a v d a e r u t c i p s t c e l e S n o i s s i m s n a r t r e p d e c u d o r p R O L O C S E R r e d n u o s o h c e f o r e i f i l p m a o t g n i d r o c c a R A E N I L r o G O L t c e l e ...

Страница 34: ... a narrow sounding beam Then the echoes appear on a 6 sector in each transmission so 60 times of transmissions are required to complete full 360 pic ture 6 x 60 360 This means that sounding speed reduces However since transmission power is concen trated into the narrow sounding beam a superior detec tion range is obtained Furthermore since the bottom contour is painted distinctly bottom fish detec...

Страница 35: ...n prevent net damage A Flat bottom Tilt angle 10 to 15 B Flat bottom Tilt angle 20 or more C Sloping bottom Tilt angle 20 or more Bottom Shallow bottom is displayed in a strong color and with a short tail Bottom is displayed narrower and in stronger colors when compared to A Narrow tilt angle Only half of vertical beam width captures the bottom The deeper bottom echo is displayed in a weak color a...

Страница 36: ...30 or more Fish echo which appears before bottom can be detected Tilt angle 0 to 20 Fish echo which appears together with or after bottom can be detected Fish school Sea surface reflections Bottom echo not displayed because of narrow tilt angle Sea surface reflections are present Bottom Fish school Large midwater fish school is present Fish school Bottom When the tilt angle is shallow he reflectio...

Страница 37: ...ons Figure 2 19 Sea surface reflections Wake A wake produced by own ship or another ship can be a strong reflecting object when a narrow tilt angle is used As the wake appears as a thick continuous line it can be easily distinguished from a fish school A wake contains many air bubbles which attenuate ultrasonic energy making it difficult to sound beyond the wake Other ship Own ship Own ship s scre...

Страница 38: ...t 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 dis play as a false echo as shown below Mainlobe Sidelobe Mainlobe echo Sidelobe echo 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 ...

Страница 39: ...nterference from the sonar operated on other boats will show itself on the display as in A in the figure be low This interference can be suppressed by changing the Tx rate on the SONAR 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 IR in the SONAR menu A Inteference from B Interference from other sonars marine life Fig...

Страница 40: ...orth marker Trackball marker data Trackball marker C1 0 9 C2 0 8 C3 0 5 2 3 1 Current data Requires current indicator Depth latitude longitude Requires navigator D35 0 34 43 261N 135 20 282E 39 40 9 B 228 320 Range marker Bearing marker Range and bearing marker data Current tide vector Heading north marker require current indicator and gyro or log Figure 2 23 Indications on the normal sonar displa...

Страница 41: ...2 25 Expanded sonar display Sector center marker Range Tilt Sector width marker Own ship marker Trackball marker Trackball marker data R 150 T 10 Figure 2 24 Indications on the expanded sonar display ...

Страница 42: ...remains lit TRANSDUCER PWR O I TRANSDUCER TRAIN MODE RANGE GAIN 0 2 4 6 8 10 3 Search for fish school with RANGE and TILT controls GAIN 3 5 NOISE LIMITER 2 4 TVG level time 3 5 TX POWER C Use these settings initially Fine tune as necessary For bottom trawling sonar is usually used to detect net hangs ahead rather than to detect fish close to the bottom since bottom returns usually mask the weaker ...

Страница 43: ... and observe bottom 6 Change tilt angle and tow net Fish school Scout boat Observe the net and the fish school in it Adjust tilt angle and observe both screens Net Marker can be moved to any position by ro tating trackball Bottom Fish school Outcrop Trackball marker Data of fish school bottom or outcrop pointed by trackball marker Bottom Fish school Outcrop Here comes fish school Here comes fish s...

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Страница 45: ...enter direction of the vertical scanning sector with the TILT control and select the sector width with the SECTOR con trol 7 Select the auto train sector on BOTTOM 3D menu if necessary 8 3 Adjust the GAIN and TVG on the BOTTOM 3D menu Gain 3 5 TVG level time 3 9 8 9 9 Adjust the NL control if a large number of small blue dots appear on the screen Normally set it between 2 and 4 10 11 With the trac...

Страница 46: ...ke an echo sounder Surface Bottom RANGE m Vertical range V H 1 1 60 PORT R STBD 60 60 Horizontal range 60 RANGE Range m 20 40 60 280 320 400 Note The unit of range measurement can be changed through the SYSTEM menu For details see page 6 1 Figure 3 2 How to select range V H RANGE key The V H RANGE key changes the horizontal range scale in two steps See the figures below V H 1 1 V H 1 2 V H R 60 60...

Страница 47: ... status of theAUTO TRAIN key in the sub panel 2 Train Indicator Mark Training of Vertical Fan Beam Bow AUTO TRAIN on LED lights AUTO TRAIN off Manual train LED goes off Example Auto Train Sector 90 The beam trains auto matically with in the selected range cen tered at the bearing set by the TRAIN control Bow Bow Manual train range can be selected either HALF 174 or FULL 360 on the SYSTEM menu The ...

Страница 48: ...splay center sector center respec tively Mode Display Sector transducer tilting sector Vertical Fan Mode 36 60 96 120 156 180 Selected by FULL HALF key Display sector Shaded area 180 0 Sector center Sector center PORT STBD Figure 3 4 Selecting the display sector Sector step The FAST SCAN key in the sub panel 2 selects sector step in 6 or 3 ...

Страница 49: ...e wider view at port side Sector center Display sector Figure 3 5 Automatic shift function 3 6 Rejecting Sonar Interference and Noise While observing the picture you may encounter occasional or intermittent noise and interference as shown below This is mostly caused by onboard electronic equipment engine pro peller noise or electrical noise from other sonars being oper ated nearby Turn on the inte...

Страница 50: ...3 To erase the marker place the trackball marker outside the echo display area and press the EVENT key Note CH 37 stores one event marker 1 Position the trackball marker on the desired location 2 Press the R B key The horizontal and vertical markers appear and the distance to the intersection of the mark ers is indicated at the bottom left hand side of the screen 3 To erase the marker place the ma...

Страница 51: ...he so nar mode For best results set both TVG level and time a little lower than the ones in the sonar mode The setting is mode on the BOTTOM 3D menu screen and the usual setting for both time and level is 3 MENU SONAR BOTTOM 3D DUAL E S TVG LEVEL 3 0 TVG TIME 3 0 BEAM WIDTH NAR Figure 3 7 Bottom 3D menu screen TVG level rejects surface noise which may mask shallow tar gets and TVG time adjusts the...

Страница 52: ... or DISTANCE SCALE 500 1000 EXIT PRESS MENU KEY Figure 3 9 Bottom 3D menu Bottom 3D menu description TVG Level Controls the receiver sensitivity in short to me dium ranges to eliminate surface noise which may mask shal low targets TVG Time Determines the TVG effective depth BEAM WIDTH Sets the vertical beam width Select narrow for general use The wide beam width is useful for searching a wide area...

Страница 53: ...ining is performed only in vertical direction It forms a sound ing 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 Vertical Fan Mode Freq 60 kHz 0 1 Bearing of the sounding beam Bow 180 0 Tilting direction 2 Sector center 3 Display...

Страница 54: ...RT STBD Figure 3 11 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 Automatically shifted according to the operation control set tings Forward Own ship Fish school FORE AFT FORE AFT Fish school...

Страница 55: ...ow water less than 100 m detection unwanted ech oes shown in the figure may appear This phenomenon is caused by the false echo from the previous transmission Re ducing the Tx rate on the BOTTOM 3D menu may lessen this effect Range False echo Bottom Fish Figure 3 14 False echoes TIP Training indicator and screen display PORT STBD Starboard port AFT FORE Fore aft FORE AFT Aft fore Shows starting pos...

Страница 56: ...ications Heading Train indicator H Range V Range H Range scale Fish schools Bottom 2nd reflection V Range scale Vertical Horizontal marker data Trackball Trackball data Net mouth mark Figure 3 15 Indications in the vertical fan mode ...

Страница 57: ...school near the bow of the ship or inspect the bot tom contour 3 When approaching the fish school change the beam direc tion to port starboard by the TRAIN control and maneuver the boat so that the fish are led into the trawl net 4 To observe the hauling of the net turn the sounding beam to the fore aft direction 2 After detecting a fish school steer the boat toward that direction turning off the ...

Страница 58: ... sonar mode 3 Shoot the net and then observe the location of the fish and the status of the net 2 While approaching face the sounding beam toward the fish schools and confirm their distribution The display shown below is off centered to obtain a wider view of the starboard side Fish school Automatically shifted Fish school Net Figure 3 17 Vertical fan mode usage on purse seiner ...

Страница 59: ...ng a 3D Display Either of two displays may be selected with the MODE control the frontal image at position or the oblique image at Example displays of both images are shown below Frontal image The frontal image picture gives a view of the bottom as if you are looking at it through a rearview mirror That is the most recent data appears at the front if the picture Heading Train indication H range V ...

Страница 60: ...tical Echoes On Off Vertical echoes namely real time echoes can be turned on or off on the VERT ECHO OVERLAY field of the BOTTOM 3D menu which you can display by pressing the MENU key on the sub panel 2 MENU SONAR BOTTOM 3D DUAL E S VERT ECHO OVERLAY OFF ON 3D VIEW SCALE TIM DIST TIME SCALE 1 1 1 2 1 4 or DISTANCE SCALE 500 1000 EXIT PRESS MENU KEY Figure 4 3 Bottom 3D menu ...

Страница 61: ...ISTANCE SCALE lines of the BOTTOM 3D menu The time mode should be selected when speed data is not being fed to the unit from navaids or speed log Depth Depth Frontal image Oblique image Figure 4 4 Depth dimension in frontal and oblique images 4 4 Other Operations The following operations are the same as those in the Vertical Fan mode Range Selection Rejecting Sonar Interference and Noise Horizonta...

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Страница 63: ... SECTOR TRAIN and TILT controls 5 2 Customizing the Keys 1 Tune the sonar as you normally would 2 Press the ENTER key to display the CUSTOM MODE menu 3 Press one of or key contents shown in second column from the left in figure below CUSTOM MODE menu MODE RANGE SECTOR TRAIN TILT FAST 60 0 180 96 ITEM SETTING CUSTOM1 CUSTOM2 CUSTOM3 4 Repeat step 2 for remaining custom mode keys Note Custom mode ke...

Страница 64: ...ngs adjust any con trols Example FISHING GROUND MODE RANGE 200 m SECTOR 360 TRAIN 0 TILT 30 MODE RANGE 100 m SECTOR 180 TRAIN 90 TILT 90 MODE RANGE SECTOR TRAIN TILT Fold here Record settings on label and insert it in label case on front panel FULL HALF EVENT ENTER 1 2 3 CUSTOM MODE CH 37 R B SECTOR TILT ...

Страница 65: ...FORMAT FOR NAV2 NMEA CIF CIF BAUD RATE 1200 2400 4800 TVG CORRECTION OFF 1 2 1 UNIT m ft fa HIRO V MODE MANUAL TRAIN HALF FULL DEGAUSSING INTERVAL 30 SEC FACTORY SETTING NO YES Default settings circumscribed Figure 6 1 SYSTEM SETTING menu 2 Select SYSTEM SETTING and press the MENU key 3 Select items with up and down arrow keys options with left and right arrow keys 4 Press the MENU key to return t...

Страница 66: ... D 2 V A N R O F T A M R O F A T A D A E M N r o O N U R U F F I C a t a d v a n r o f t a m r o f a t a d s t c e l e S E T A R D U A B F I C s p b 0 0 8 4 0 0 4 2 0 0 2 1 a t a d F I C f o e t a r d u a b s t c e l e S N O I T C E R R O C G V T f o n o i t a u n e t t a n o i t p r o s b a r o f e t a s n e p m o c o t e v r u c G V T s e g n a h C f o 2 1 2 1 e v r u c G V T d r a d n a t S F F...

Страница 67: ...ture size in horizontal direc tion increases size de creases size H POSITION Adjusts picture position in horizontal direction shift right left respectively V SIZE Sets picture size in vertical direc tion increases size de creases size V POSITION Adjusts pictureposition in vertical direction shift right left respectively DEFLECTION DIST Adjust deflection in vertical direc tion Adjust to obtain squa...

Страница 68: ...EST1 ROM RAM KEY TRAIN TILT TEST SCREEN ADJUSTMENT TEST PATTERN DISPLAY TEST2 OPERATION DEFAULT EXIT TURN OFF THE UNIT Figure 6 3 System menu Range sonar mode menu 1 Select RANGE SONAR MODE from the SYSTEM menu 2 Press the MENU key RANGE SONAR MODE 1 50 2 100 3 150 4 200 5 250 6 300 7 400 8 500 9 600 10 800 11 1200 12 1600 FACTORY SETTING NO YES EXIT PRESS MENU KEY Figure 6 4 Range sonar mode menu...

Страница 69: ...NGE VERTICAL FAN MODE from the SYSTEM menu 2 Press the MENU key RANGE VERTICAL FAN MODE 1 20 2 40 3 60 4 80 5 100 6 120 7 160 8 200 9 240 10 280 11 320 12 400 FACTORY SETTING NO YES EXIT PRESS MENU KEY Figure 6 5 Range vertical fan mode menu 3 Select range 4 Set range 5 To return to the SYSTEM menu press the MENU key 6 To quit reset the power ...

Страница 70: ...ENU key RANGE SHIFT E S RANGE 1 40 2 80 3 160 4 240 5 320 SHIFT 1 20 2 20 3 40 4 80 5 80 FACTORY SETTING NO YES EXIT PRESS MENU KEY Figure 6 6 Range shift e s screen 3 Select range shift 4 Set range shift 5 To return to the SYSTEM menu press the MENU key 6 To quit reset the power ...

Страница 71: ... 0 9 14 11 0 8 13 13 0 7 11 13 0 6 0 13 0 5 0 12 9 4 0 11 11 3 0 10 12 2 0 8 12 1 0 6 12 FACTORY SETTING NO YES EXIT PRESS MENU KEY HUE 1 R G B TEXT 11 11 11 BKGD 0 0 0 MENU 0 0 9 HUE 2 R G B TEXT 15 15 15 BKGD 0 0 9 MENU 0 0 12 HUE 3 R G B TEXT 15 15 15 BKGD 0 0 11 MENU 0 0 15 Figure 6 7 Color setting screen 3 Select color 4 Set color 5 To return to the SYSTEM menu press the MENU key 6 To quit re...

Страница 72: ...TORY SETTING DEFAULT ARE YOU SURE NO YES Figure 6 8 Default screen 3 Select YES and press the MENU key to restore default set tings 4 To return to the SYSTEM menu press the MENU key 5 To quit reset the power Display test operation 1 Select DISPLAY TEST OPERATION from the SYSTEM menu 2 Press the MENU key TEST appears on the screen while the display unit is being tested 3 To quit reset the power ...

Страница 73: ...of the net mouth mark The setting range is 1 999 m and the default setting is 100 m Setting range and default setting change with unit of measurement NET MOUTH HEIGHT Set the up down width of the net mouth mark The setting range is 1 999 m and the default setting is 30 m Setting range and default setting change with unit of measurement NET DEPTH Choose the net mouth mark depth setting method The d...

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Страница 75: ...e around the unit for ventilation Keep it away from equipment with magnets such as a speaker large capacity transformer and also magnetic sen sitive units such as gyrocompass or cassette tape Clean the filter and screen with a wet or dry soft cloth Do not use commercial cleaners to clean the display unit they can remove paint and markings Cover the display unit when it is not in use Degauss the di...

Страница 76: ...hold down the brake off switch while manually raising lowering the transducer Failure to press the switch may damage the raise lower motor 1 Turn off the breaker on the hull unit 2 Remove the brake off switch cover 3 Set 19 mm socket wrench and turn it while pressing the brake off switch 4 Check that the transducer can be raised lowered smoothly with a constant force from the upper to the lower li...

Страница 77: ...REEN ADJUSTMENT TEST PATTERN DISPLAY TEST2 OPERATION DEFAULT EXIT TURN OFF THE UNIT Figure 7 2 System menu 2 Select DISPLAY TEST1 ROM RAM KEY with the arrow keys on the sub panel 2 3 Press the MENU key to start the test The program no Tx frequency and pitch and roll angles are displayed and the ROM RAM SI O are checked 4 Operate each key and control on the main panel sub panel and remote control b...

Страница 78: ...B PANEL EXIT PRESS MENU KEY ROM Program version NO is displayed ROM RAM and serial ports are checked for proper operation and Tx fre quency roll angle and pitch angle are displayed Remote Control Box check Switch is normal if value changes when switch is operated Main panel check Switch is normal if value changes when switch is operated Sub panel check Switch is normal if value changes when switch...

Страница 79: ...190 OK OK OK 0 180 0 180 PULSES 1428 1449 1427 1451 NG 0 0 0 0 180 CW 0 CW 180 CCW 0 CCW 10 90 190 90 PULSES 1206 939 919 1225 TEST COUNT NG 0 0 0 0 8 90 190 90 10 EXIT PRESS MENU KEY This checks the photo sen sors which detect the refer ence angles for training and tilting operations This checks the transducer training operation The four digit figures show the num ber of pulses used to train the ...

Страница 80: ...RED Figure 7 5 Test pattern 4 To return to the SYSTEM menu press the MENU key again 5 To quit reset the power 7 7 Error Messages Raise lower error message If the power is not applied to the hull unit the following mes sage appears on the screen and the buzzer sounds HULL UNIT POWER OFF CHECK BREAKER AND FUSE PRESS R B KEY TO SILENCE ALARM Figure 7 6 Raise lower error message If this occurs turn th...

Страница 81: ...s turn the power off and check the fuse as the screen suggests Speed warning Because the transducer may be damaged if it is kept lowered when ship s speed exceeds 15 knots based on the speed rela tive to ground fed from nav sensor the following message appears and the buzzer sounds Press the R B key to silence the buzzer and return to the nor mal sonar picture Raises the transducer TRANSDUCER REMA...

Страница 82: ...off and contact your service agent at your earliest con venience TRAIN NG Figure 7 9 Train error message Tilt error message If something is wrong with the tilt control circuit the following message appears and the unit stops operating Turn the PWR switch off and contact your service agent at your earliest con venience TILT NG Figure 7 10 Tilt error message ...

Страница 83: ...nce to sea bottom changes due to rolling and pitching Long range selected Since transmission period is a little longer ship s rolling and pitching are apt to effect detection of echo Weak echo TX OUTPUT POWER set to other than C Check the TX OUTPUT POWER setting on the SONAR menu and set it to C for max output power TVG effect is excessive Excessive TVG results in elimination of useful echoes Note...

Страница 84: ...d is near display unit Locate magnetic field generating equipment rectifier etc well away from the display unit Picture contains noise Equipment not grounded properly Carefully check the ground Power cable is run alongside the signal cable Signal cable may pick up noise emit ted from power cable of other equip ment therefore separate them from each other Debris may be on sea surface Reject unwante...

Страница 85: ...ANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT FISHING GROUND MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT FISHING GROUND MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT FISHING GROUND MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT FISHING GROUN...

Страница 86: ...in Speed Detection Range m Range 60 kHz 162 kHz Train Speed sec 360 1 0 50 0 50 3 8 2 0 100 0 100 4 3 3 0 150 0 150 4 8 4 0 200 0 200 5 4 5 0 250 0 250 6 0 6 0 300 0 300 6 7 7 0 400 0 350 7 6 8 0 500 0 400 8 6 9 0 600 0 450 10 0 10 0 800 0 500 12 0 11 0 1200 0 600 16 0 12 0 1600 0 800 21 0 Measured at fast train mode of 60 kHz reference only Display sector width is selected among 45 90 135 180 225...

Страница 87: ... Power 0 8 kW 60 kHz 1 5 kW 162 kHz 3 Beamwidth 6 dB 4 Pulselength 0 2 to 10 6 ms varied according to the range in use selected on the Menu 4 HULL UNIT 1 Train Step 45 step by fast scan mode or 6 step by normal mode 2 Tilting Horizontal mode Tilt Range 5 to 90 Tilt Step 1 step Vertical Fan Mode Tilt Range 0 to 180 Tilt Step 6 fast scan or 3 normal 3 Transducer Travel 400 mm 4 Raise Lower Time 10 s...

Страница 88: ...ENVIRONMENTAL CONDITION 1 Ambient Temperature 0 C to 50 C 2 Relative Humidity 95 or less at 40 C 7 CORTING COLOR 1 Display Unit Chassis 2 5GY5 1 5 Panel N 3 0 2 Hull Unit 2 5GY5 1 5 3 Transceiver Unit 2 5G7 2 ...

Страница 89: ...messages 7 6 7 8 EVENT key sonar mode 2 10 vertical fan mode 3 6 Event marker sonar mode 2 10 vertical fan mode 3 6 F FAST SCAN key sonar mode 2 3 vertical fan mode 3 4 FULL HALF key 2 11 G GAIN control 2 7 H Horizontal marker 3 6 HUE key 1 6 Hull unit care 7 2 I Indications sonar mode 2 24 2 25 vertical fan mode 3 12 IR control sonar mode 2 8 vertical fan mode 3 5 K Keying pulse synchronization 2...

Страница 90: ...trol sonar mode 2 4 2 14 vertical fan mode 3 4 Tilt error message 7 6 TRACK key 2 17 TRAIN control sonar mode 2 15 vertical fan mode 3 3 Train error message 7 8 Train tilt test 7 5 Transceiver unit care 7 1 Transceiver unit error message 7 7 TRANSDUCER switches 1 3 Troubleshooting display unit test 7 3 error messages 7 6 test pattern 7 6 train tilt test 7 5 troubleshooting table 7 9 TVG control so...

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