Furuno CSH-7 - Manuals

iv FOREWORD A Word to CSH-7 Owners Congratulations on your choice of the FURUNO CSH-7 Color Scanning Sonar. We areconfident you will see why the FURUNO name has become synonymous with quality andreliability. For over 40 years FURUNO Electric Company has enjoyed an enviable reputation for qual-ity ma...

v System Configuration CSH-7040 TRANSCEIVER UNIT RECTIFIER RU-3424 100-115 VAC/ 200-230 VAC 1 φ , 50/60 Hz Ship’s Mains 24 VDC HULL UNIT 600 mm stroke 400 mm stroke CSH-7030 CSH-7031 * Interface Module CSH-7050 (option) required to connect external equipment. DISPLAY UNIT CSH-7010 (*) NAVIGATORCURRE...

1-1 OPERATIONAL OVERVIEW Equipment Overview All operations of the CSH-7 are carried out through the displayunit and the remote controller (option). The uncluttered, straight-forward control panel of the display unit provides intuitive op-eration. If you change a control setting you will see the asso...

1-2 Display Unit Control Panel Description GAIN TILT MENU F1 F2 R B – + – + TX d c Turns transmitter on/off; freezes the display. The lamp above the switchlights when the transmitter is turned on and flickers when off. Selects a picture display range. Also functions to select items on menuscreens. N...

1-3 Adjusting Screen Brilliance, Control Panel Backlighting The BRILL control adjusts screen brilliance, and the DIMMERcontrol adjusts control panel backlighting. Lowering the Transducer Press the d switch. The lamp above the switch blinks, and lights when the transducer is fully lowered. CAUTION Do...

1-4 Seabed echo and tilt angle Case 1: Tilt angle 30 to 40 degrees This tilt angle will display the entire seabed since it is capturedby the full width of the beam. Case 2: Tilt angle 10 to 20 degrees This tilt angle will only display half the seabed since it is onlycaptured by the lower half of the...

1-5 Points to consider • Normally, a vertically distributed fish school is a better sonar target than the seabed, because it reflects the transmitted pulseback toward the transducer. • In case 3, both fish schools a and b are presented. Gener- ally speaking, however, midwater fish schools tend to be...

1-6 Suitable tilt angle The figure below illustrates the relationship among tilt angle,depth and detection range. Refer to it to find out the suitable tiltangle for a given depth/detection range. 100 (200) 200 (400) 300 (600) 400 (800) Range (m) 0° 5° 10° 15° 20(40) 40(80) 60(120) 80(160) 100(200) 2...

1-7 Adjusting the Gain The GAIN control adjusts receiver sensitivity (gain). Adjust itso fish echoes are clearly displayed with minimal noise on thescreen. Too high a setting not only displays excess noise andmakes it difficult to discriminate wanted echoes but also causesseabed echoes to be painted...

2-1 MARKERS AND DATA Standard Markers and Data RT G B ° R ° B Bearing ofbearing marker Range torange marker Rangering Rangemarker Bearingmarker RangeTilt Trackball marker data Slant range Horizontal range Depth True bearing Trackball marker Heading marker Own ship marker Heading data(Requires INTERF...

2-2 Table 2-1 Standard markers and data description Marks position on the screen. Direction of arrow is heading. Range Rings Range and BearingMarker Data R ° B TrackballMarker The trackball marker selects location for markers and own ship’s position. The trackball moves the marker over the entire sc...

2-3 Optional Markers and Data Various markers and data are available with connection of theINTERFACE Board and appropriate external equipment. Optional markers and data in the normal mode 184 16( 199)B E/N 187 186 16B 23°S E/N R 300T 5° G 3.0 E S W 300 N 3 2 1 Trackball marker data Tidal currentmark...

2-5 Table 2-2 Optional markers and data description Latest Event MarkerData → ↓ ( ) B ° Tidal Current Data C1: . C2: . C3: . Course Line Marker Electronic BearingScale The position data of the latest event marker, that is, horizontal range ( → ), current depth ( ↓ ) and bearing. ( ) shows the latest...

3-1 MENU OVERVIEW The menu system consists of four menus: Scan menu, Menu-1,Menu-2, and System. The Scan menu can be opened while trans-mitting, and contains items which the user will often changeduring the course of operation. Menu-1 (similar to the Scanmenu), Menu-2 and System menus can be opened ...

3-2 3. Operate the RANGE control to scroll the menu and select item. The selected item is highlighted in green and currentsetting in white. 4. Operate the GAIN control to change setting. 5. Press the MENU key to register selections and close the menu. Note: Gain or range cannot be changed while the ...

3-4 Displaying menu-1, menu-2, system menu 1. Press the TX switch to blink the lamp (transmitter off state) above it, if it is not already blinking. 2. Press the MENU key. The last-used menu among Menu-1, Menu-2, and System appears. The menu below is Menu-1. ** MENU - 1 ** (RANGE SW: U/D GAIN SW: L/...

3-6 System menu description ** SYSTEM MENU ** (RANGE SW: U/D GAIN SW: L/R) MENU MODE : MENU - 1 MENU - 2 SYSTEM : 0 ° : METERS : LOG/GY : 200 : 4800 : CIF : 4800 : GPS : LA : LOCK : OFF : ENGLISH : SINGLE CONTI : EXECUTE FATHOMS NAV 1200 NMEA182 1200 DEC ESPANOL COLOR ECHO-1 PA/BRA DR DANSK GRAY ECH...

4-1 FINE TUNING THE PICTURE Eliminating Unwanted Feeble Echoes Echoes from targets such as seabed and fish return to the trans-ducer in order of distance to them, and when we compare theirintensities at the transducer face, those from nearer targets aregenerally stronger when their reflecting proper...

4-2 4. Locate a fish school on a long range setting which is ap- proaching own ship. Adjust the tilt to keep the fish school inthe center of the sonar beam, namely, fish school is displayedin strongest colors possible. Confirm that the fish echo isdisplayed in the same color as it approaches. If the...

4-4 Rejecting Sonar Interference and Noise While observing the sonar picture, you may encounter occasionalor intermittent noise and interference. These are mostly causedby on-board electronic equipment, engine or propeller noise, orelectrical noise from other sonars being operated nearby. Identifyin...

4-5 Rejecting interference with TX cycle When other sonars operate nearby at the same transmission in-terval as that of own ship’s sonar, an interference ring caused byother sonars is displayed. To erase the interference ring from thescreen, reduce the TX CYCLE setting on the Scan menu. Interference...

5-1 ADVANCED OPERATION Measuring the Range and Bearing to a Target Operate the trackball to place the trackball marker (+) on thetarget you want to measure the range and bearing. The rangeand bearing are displayed at the top left corner on the screen. B Slant range Horizontal range Depth Bearing Tra...

5-2 Trackball marker Bearingmarker Figure 5-2 Area monitored in audio function (sample) Relocating Fish School for Easy Observation When a fish school is located near the edge of the screen andinconvenient for observation, use the off-center function to re-locate the fish school to the desired place...

5-3 Function Keys (F1, F2) Function keys F1 and F2 work like the auto dialing feature on atelephone, instantly calling out desired settings to perform spe-cially assigned functions. These keys provide optimum sonarsettings for a specific purpose with a single key operation. Each function key can be ...

5-5 Event Markers, Own Ship Event Markers The event marker denotes important items on the display, suchas a fish school, and the own ship event marker marks own shipposition. Ten event markers and ten own ship event markers maybe entered. The CSH-7 denotes the latest event marker as and other event ...

6-1 INTERPRETING THE DISPLAY Seabed Echoes When the tilt angle is widened, the seabed echo illustrated be-low will appear on the display. When the tilt is narrowed, theseabed trace becomes wider and weaker. By observing the sea-bed condition on the display, the skipper can prevent net dam-age. (A) F...

6-2 Fish Schools A fish school appears as a mass of echoes on the screen. Thecolor of the mass shows the density of fish schools on the sonarbeam. To find distribution and center point of a fish school, tryseveral different tilt angles. (A) Sea surface fish Tilt angle: -5 ° to 10 ° (B) Midwater, bot...

6-3 Sea Surface Reflections To reduce sea surface reflections, set the tilt angle to 5 ° or higher, so the upper edge of the sonar beam does not hit the sea surface,or adjust TVG. When a narrow tilt angle is used, sea surfacereflections cover a large area as illustrated below. Sea surface Sea surfac...

6-4 False Echo by Sidelobe An ultrasonic wave is emitted only in the direction set by theTILT lever, however there are some emissions outside the mainbeam. These are called sidelobes. The ennergy of the sidelobe isfairly weak but when the water is comparatively shallow and thebottom is rocky and har...

7-1 MAINTENANCE Do not work inside theequipment unless totallyfamiliar with electricalcircuits. Hazardous voltage which cancause electrical shock, burn or serious injury exists inside the equipment. WARNING Display Unit Maintenance Keep magnets and cassette tapesaway from the display unit. Handle th...

7-2 Hull Unit Maintenance HULL UNIT Raise transducer and coatmain shaft withDAPHAECOROAEX #2every six months. Apply MOLYTONE grease#2 every six months. Dry dock ship and cleantransducer face yearly.Apply single coat of "MARINE STAR 20 Mod(Red-N)" anti-foulant totransducer face to keepmarine ...

8-1 TROUBLESHOOTING Do not work inside theequipment unless totallyfamiliar with electricalcircuits. Hazardous voltage which cancause electrical shock, burn or serious injury exists inside the equipment. WARNING When the Transducer Cannot be Retracted When the transducer cannot be completely retracte...

8-2 Breaker ON/OFF state ON OFF Breaker DOWN command LED (Red) POWER ON/OFF LED (Green) Hand crank Shaft gear Motor gear 8A Cable gland POWERswitch Breaker (Bottom view) How to use the hand crank 1. Turn off the POWER switch on the hull unit.2. Remove gear cover.3. Attach hand crank to shaft gear or...

8-3 Diagnostic Tests This unit has eight diagnostic test which check it for proper op-eration. These tests are mainly for use by service technicians,however the user may execute them to identify possibly defec-tive components. Starting, quitting diagnostic tests 1. Press the MENU key. 2. Operate the...

8-4 Note: When the transducer is fully lowered, pressing the MENUkey at the diagnostic test raises the transducer. Panel test This test checks the control panel for proper operation. PANEL TEST PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK Press each controlone by one. Corresponding figure changes i...

8-5 Figure 8-4 Color test display Gray test This test checks for proper display of monochrome charactersand markers. Concentric rings and a monochrome test bar aredisplayed. PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK ..... ... GRAY TEST Figure 8-5 Gray test display Conti test This test continuous...

8-6 Figure 8-6 Results of continuous test SIO test This text checks transceiver unit input and output. SIO TEST MAIN I/F SIO1 SIO-NAVSIO-CI = OK = NG = NG PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK For service technicians;special test connectorrequired to check. NGappears when no testconnector is...

9-1 SPECIFICATIONS Model CSH-7-xx (55: 55 kHz, 70: 70 kHz) Display Display PPI display on 10" non-glare high resolution CRT Display color 16 colors according to echo strength Display mode Normal, *Normal plus text Display resolution 512 x 384 dot Markers, indications Own ship marker, Heading mar...

9-2 Range, TX cycle, pulselength Range, range display 1. Ranges shown for off-center on are maximum.2. Fish school may not be detected depending on its nature or sea conditions, even if it is located within the display range in use. Pulselength 0.5 to 10 msec, interlocked with range, eleven settings...

9-3 Tilt Angle Tilt beam angle 0 ° to 55 ° , continuously variable Hull Unit Power Supply, Power Consumption 24 VDC, 160 W (average), maximum 280 W (ship’s speed 16knots, raising transducer)(100 VAC operation with optional rectifier) Color Display unit Panel: N 3.0 Newtone No. 5, Cover: 2.5GY 5/1.5 ...