Instruction/ maintenance manual of the product CSH-7 Furuno
Go to page of 51
COLOR SCANNING SONAR MODEL CSH-7.
FIRST EDITION : MAY 1997 Your Local Agent/Dealer FURUNO ELECTRIC C O . , LT D . c 9-52, Ashihara-cho, Nishinomiya, Japan 662 Telephone: 0798-65-2111 Telefax: 0798-65-4200 All rights reserved.
i i i i i i i i i i i i i i SAFETY INSTRUCTIONS Do not disassemble or modify the equipment. Fire, electrical shock or serious injury can result. Turn off the power immediately if water leaks into the equipment or the equip- ment is emitting smoke or fire.
ii T ABLE OF CONTENTS FOREWORD A W ord to CSH-7 Owners ........................................................................................................ v Features ................................................................................
iii INTERPRETING THE DISPLA Y Seabed Echoes .................................................................................................................. ..... 6-1 Fish Schools .....................................................................
iv FOREWORD A Word to CSH-7 Owners Congratulations on your choice of the FURUNO CSH-7 Color Scanning Sonar . W e are confident you will see why the FURUNO name has become synonymous with quality and reliability . For over 40 years FURUNO Electric Company has enjoyed an enviable reputation for qual- ity marine electronics equipment.
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.
1-1 OPERA TIONAL OVER VIEW Equipment Overview All operations of the CSH-7 are carried out through the display unit and the remote controller (option). The uncluttered, straight- forward control panel of the display unit provides intuitive op- eration.
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 switch lights when the transmitter is turned on and flickers when off. Selects a picture display range.
1-3 Adjusting Screen Brilliance, Control Panel Backlighting The BRILL control adjusts screen brilliance, and the DIMMER control adjusts control panel backlighting. Lowering the T ransducer Press the d switch. The lamp above the switch blinks, and lights when the transducer is fully lowered.
1-4 Seabed echo and tilt angle Case 1: T ilt angle 30 to 40 degrees This tilt angle will display the entire seabed since it is captured by the full width of the beam. Case 2: T ilt angle 10 to 20 degrees This tilt angle will only display half the seabed since it is only captured by the lower half of the beam.
1-5 Points to consider • Normally , a vertically distributed fish school is a better sonar tar get than the seabed, because it reflects the transmitted pulse back toward the transducer .
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 tilt angle for a given depth/detection range.
1-7 Adjusting the Gain The GAIN control adjusts receiver sensitivity (gain). Adjust it so fish echoes are clearly displayed with minimal noise on the screen.
2-1 MARKERS AND DA T A Standard Markers and Data R T G B ° R ° B Bearing of bearing marker Range to range marker Range ring Range marker Bearing marker Range Tilt Trackball marker data Slant range Horizontal range Depth True bearing Trackball marker Heading marker Own ship marker Heading data (Requires INTERFACE Board and gyrocompass.
2-2 T able 2-1 Standar d markers and data description Marks position on the screen. Direction of arrow is heading. Range Rings Range and Bearing Marker Data R ° B Trackball Marker The trackball marker selects location for markers and own ship’s position.
2-3 Optional Markers and Data V arious markers and data are available with connection of the INTERF ACE Board and appropriate external equipment. Optional markers and data in the normal mode 184 16 ( 199) B E/N 187 186 16 B 23°S E/N R 300 T 5° G 3.
2-4 Optional markers and data in the normal plus text mode 367 38 ( 165) B 283° R 313 B 7°P S C D T 496 493 51 B 52°S NW/N R 800T T 5° G 4.0 N S W 3 2 1 Heading indication Latest event marker data 0.0 NW/W 174 17.0 34: C1: C2: C3: 13.02N 135: 16.39E 1.
2-5 T able 2-2 Optional markers and data description Latest Event Marker Data → ↓ () B ° Tidal Current Data C1: . C2: . C3: . Course Line Marker Electronic Bearing Scale The position data of the latest event marker, that is, horizontal range ( → ), current depth ( ↓ ) and bearing.
3-1 MENU OVER VIEW 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 change during the course of operation. Menu-1 (similar to the Scan menu), Menu-2 and System menus can be opened with the trans- mitter turned off.
3-2 3. Operate the RANGE control to scroll the menu and select item. The selected item is highlighted in green and current setting in white. 4. Operate the GAIN control to change setting. 5. Press the MENU key to register selections and close the menu.
3-3 T able 3-1 Scan menu description (con’ t.) m e t In o i t p i r c s e D R I o h c e r e h t o y b d e s u a c e c n e r e f r e t n i d n a e s i o n m o d n a r s t c e j e R .
3-4 Displaying menu-1, menu-2, system menu 1. Press the TX switch to blink the lamp (transmitter of f 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.
3-5 This menu contains the same items as the Scan menu. See page 3-2 for description. Menu-2 description ** MENU - 2 ** (RANGE SW: U/D GAIN SW: L/R) EXT KP SYNC RANGE MARKER BEARING SCALE CURRENT MARK.
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 :L A : LOCK : OFF : ENGLISH : SINGLE CONTI : EXECUTE FATHOMS NAV 1200 NMEA182 1200 DEC ESPANOL COLOR ECHO-1 PA/BRA DR DANSK GRAY ECHO-2 # # # # # # # # # # Requires INTERFACE Board.
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 their intensities at the transducer face, those from nearer targets are generally stronger when their reflecting properties are nearly equal.
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 in the center of the sonar beam, namely , fish school is displayed in strongest colors possible. Confirm that the fish echo is displayed in the same color as it approaches.
4-3 fish echoes from seabed reflections. Decrease the PULSELENGTH setting on the Scan menu to shorten the pulselength. For search of surface and midwater fish in which seabed reflections are not so strong, use the longest pulselength “10”.
4-4 Rejecting Sonar Interference and Noise While observing the sonar picture, you may encounter occasional or intermittent noise and interference. These are mostly caused by on-board electronic equipment, engine or propeller noise, or electrical noise from other sonars being operated nearby .
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 by other sonars is displayed. T o erase the interference ring from the screen, reduce the TX CYCLE setting on the Scan menu.
5-1 ADV ANCED OPERA TION Measuring the Range and Bearing to a T arget Operate the trackball to place the trackball marker (+) on the target you want to measure the range and bearing. The range and bearing are displayed at the top left corner on the screen.
5-2 Trackball marker Bearing marker Figur e 5-2 Ar ea monitor ed in audio function (sample) Relocating Fish School for Easy Observation When a fish school is located near the edge of the screen and inconvenient for observation, use the off-center function to re- locate the fish school to the desired place on the screen.
5-3 Function Keys (F1, F2) Function keys F1 and F2 work like the auto dialing feature on a telephone, instantly calling out desired settings to perform spe- cially assigned functions. These keys provide optimum sonar settings for a specific purpose with a single key operation.
5-4 Programming user programs 1. Press the TX switch to blink the lamp above it, if it is not already blinking. 2. Press the MENU key and select Menu-1. 3. Using the RANGE and GAIN controls, set menu options as desired. 4. Operate the RANGE control to select USER PROG.
5-5 Event Markers, Own Ship Event Markers The event marker denotes important items on the display , such as a fish school, and the own ship event marker marks own ship position. T en event markers and ten own ship event markers may be entered. The CSH-7 denotes the latest event marker as and other event markers as +.
6-1 INTERPRETING THE DISPLA Y Seabed Echoes When the tilt angle is widened, the seabed echo illustrated be- low will appear on the display . When the tilt is narrowed, the seabed trace becomes wider and weaker . By observing the sea- bed condition on the display , the skipper can prevent net dam- age.
6-2 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. T o find distribution and center point of a fish school, try several different tilt angles.
6-3 Sea Surface Reflections T o 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 surface reflections cover a large area as illustrated below .
6-4 False Echo by Sidelobe An ultrasonic wave is emitted only in the direction set by the TIL T lever , however there are some emissions outside the main beam.
7-1 MAINTENANCE Do not work inside the equipment unless totally familiar with electrical circuits. Hazardous voltage which can cause electrical shock, burn or serious injury exists inside the equipment. WARNING Display Unit Maintenance Keep magnets and cassette tapes away from the display unit.
7-2 Hull Unit Maintenance HULL UNIT Raise transducer and coat main shaft with DAPHAECOROAEX #2 every six months. Apply MOLYTONE grease #2 every six months. Dry dock ship and clean transducer face yearly. Apply single coat of "MARINE STAR 20 Mod (Red-N)" anti-foulant to transducer face to keep marine life off the transducer.
8-1 TROUBLESHOOTING Do not work inside the equipment unless totally familiar with electrical circuits. Hazardous voltage which can cause electrical shock, burn or serious injury exists inside the equipment.
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 POWER switch Breaker (Bottom view) How to use the hand crank 1. Turn off the POWER switch on the hull unit. 2. Remove gear cover.
8-3 Diagnostic T ests 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.
8-4 Note: When the transducer is fully lowered, pressing the MENU key 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 control one by one.
8-5 Figur e 8-4 Color test display Gray test This test checks for proper display of monochrome characters and markers. Concentric rings and a monochrome test bar are displayed. PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK ..... ... GRAY TEST Figur e 8-5 Gray test display Conti test This test continuously checks the display and transceiver units.
8-6 Figur e 8-6 Results of continuous test SIO test This text checks transceiver unit input and output. SIO TEST MAIN I/F SIO1 SIO-NAV SIO-CI = OK = NG = NG PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK For service technicians; special test connector required to check.
8-7 Figur e 8-8 Echo-1 test display Echo-2 test This test checks echo processing circuits in the display unit and transceiver unit. PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK TRX ECHO TEST Figur e 8-9 Echo-2 test display Note: Appearance of above test pattern may vary slightly depending on the frequency or internal settings.
9-1 SPECIFICA TIONS Model CSH-7-xx (55: 55 kHz, 70: 70 kHz) Display Display PPI display on 10" non-glare high resolution CR T Display color 16 colors according to echo strength Display mode Norma.
9-2 Range, TX cycle, pulselength Range, range display 1. Ranges shown for off-center on ar e maximum. 2. Fish school may not be detected depending on its natur e 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 TX cycle 0.
9-3 Tilt Angle T ilt beam angle 0 ° to 55 ° , continuously variable Hull Unit Power Supply, Power Consumption 24 VDC, 160 W (average), maximum 280 W (ship’ s speed 16 knots, raising transducer) (100 V AC operation with optional rectifier) Color Display unit Panel: N 3.
An important point after buying a device Furuno CSH-7 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Furuno CSH-7 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Furuno CSH-7 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Furuno CSH-7 you will learn all the available features of the product, as well as information on its operation. The information that you get Furuno CSH-7 will certainly help you make a decision on the purchase.
If you already are a holder of Furuno CSH-7, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Furuno CSH-7.
However, one of the most important roles played by the user manual is to help in solving problems with Furuno CSH-7. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Furuno CSH-7 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
