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DOPPLER SONAR

CURRENT INDICATOR

CI-80

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Содержание CI-80

Страница 1: ...DOPPLER SONAR CURRENT INDICATOR CI 80 ...

Страница 2: ... s hi har a c ho Ni s hi nom i y a J apan Telephone 0798 65 2111 Telefax 0798 65 4200 Your Local Agent Dealer All rights reserved PUB No OME 72390 CI 80 DAMI FIRST EDITION FEB 1995 F JAN 6 2001 Printed in Japan ...

Страница 3: ... 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 ELECTRICAL SHOCK HAZARD Do not open the equipment Only qualified personnel should work inside the equipment WARNING Keep heater away from equipment A heater can melt the equipment s power cord which can cause fire or electrical shock Use the prope...

Страница 4: ...nu 17 TRK Menu 17 MARK Menu 18 AVR Menu 18 OPERATION 19 Basic Operating Procedure 19 Setting Tide Measuring Depths on the Echo Display 22 Setting up the Echo Display 23 Setting up the Course Plot Display 24 Marks 25 Calculating Trip Distance 26 Calibrations offsets 26 Water Speed Display Setting 27 Nav Data Setting 28 MAINTENANCE TROUBLESHOOTING 29 Preventive Maintenance 29 Troubleshooting 30 Self...

Страница 5: ...f ship and currents at specific depths by measuring Doppler shifts obtained from three separate directions Planktonic layer Seabed Frequency of reflected signal is shifted in proportion to relative speed between the vessel and reflecting objects Figure 1 Ship s Speed Here speed is a vector value including velocity and direction Depending on the base of measurement ship s speed is expressed in two ...

Страница 6: ...Tide Tide is movement of watermass at a particular depth To know absolute tide speed on ground the following two data are required 1 Ship s speed and course based on ground 2 Ship s speed and course based on measuring layer A Absolute tide is then given as a difference of these two speed vectors Absolute Tide 1 2 Fixed Layer A Base of measurement 2 1 Figure 3 ...

Страница 7: ...av tide is then given as a difference of these two speed vectors Absolute Tide 1 2 GPS satellites Nav aided speed Pseudo ground tracking speed Water tracking speed Layer A Base of measurement 1 2 Figure 4 Tide Differential Tide differential is a relative movement of tides at different depths layer A and layer B To calculate tide differential the following two data are used 1 Ship s speed and cours...

Страница 8: ...ute tide can be measured in the ground tracking mode Base of measurement Layer A Fixed Start of trip End of trip Moving at 10 kt on ground Moving at 3 kt on ground 10 NM 1 hour trip 2 1 Figure 6 Assume that the ship and layer A are moving in the same direction and ship s speeds based on ground Vg and on layer A Vwa are measured as Vg 10 kt Ship s speed based on ground Vwa 7 kt Ship s speed based o...

Страница 9: ...und tracking speed in the ideal conditions That is the nav tide can be calculated by simply replacing Vg with Vn in the above equation Tide Differential Tide differential is a relative movement of tides at different depths It can be measured in the ground tracking water tracking and nav aided modes Base of measurement Layer A Start of trip End of trip Moving 10 NM 1 hour trip Layer B Moving 2 kt 5...

Страница 10: ... of layer B based on ground Thus the tide differential Cd between layer A and layer B is Cd C2 C1 Vg Vwb Vg Vwa Vwa Vwb 8 5 3 kt or Cd C1 C2 Vg Vwa Vg Vwb Vwb Vwa 5 8 3 kt In the water tracking mode watermass just below the transducer near surface layer is taken as the base of all measurements virtual ground Therefore the ship and tide speeds in the water tracking mode are not absolute but relativ...

Страница 11: ...ement Layer A Start of trip End of trip 10 NM 1 hour trip Layer B 2 kt 5 kt Near surface layer 1 kt Assume that the ship and all measuring layers are moving in the same direction but at different speeds 3 2 1 Figure 8 ...

Страница 12: ...e master gyrocompass Procedure 1 Confirm that the gyrocompass has settled and all the necessary compensations latitude compensation weather compensation etc are made correctly 2 Operate the AD converter to obtain the same reading as you read on the master gyrocompass Do not make adjustment while the ship is turning Master Gyrocompass AD Converter Gyro Interface Figure 9 If the gyro reading is accu...

Страница 13: ...9 0 10 20 10 20 1 0 2 kt GT Mode 0 10 20 10 20 3 0 5 kt NAV Mode GT Mode NAV Mode Figure 10 ...

Страница 14: ...ng boats or on ocean research vessels Triple beam system for automatic compensation against pitching and rolling of vessel Single mold transducer for excellent mechanical beaming accuracy DC powered for economic operation Alphanumeric information display on high resolution 10 inch color CRT Simultaneous display of tide vectors and ship s track Indispensable for maneuvering and docking Echo level d...

Страница 15: ...11 SYSTEM OVERVIEW Control Description Display unit CI 800 Transceiver unit CI 810 Figure 11 Display unit Figure 12 Transceiver unit ...

Страница 16: ...menu items change settings enter data On the course plot display shift cursor Turns cursor on off Enters event mark Also activates self tests and demonstration display and register calibrations Calculates trip distance Also enables system menu when pressed and held down while pressing the MENU key Inscribes target point mark to predict flow of object for example fishing tackle against tide Adjusts...

Страница 17: ...13 How to Read the Displays The CI 80 has two display modes echo display and course plot display A display may be selected with the DISP MODE key Echo display Figure 13 Sample echo display ...

Страница 18: ...n layer Set depth Depth set is invalid In ground tracking mode depth should be shallower than 7 m or in the water tracking mode no more 3 4 of seabed depth Measured speed When measured speed tide or ship s is unreliable Course plot display Figure 14 Sample course plot display NOTE 1 Ship s course and heading displays can be switched with display mode as follows by a DIP switch in the display unit ...

Страница 19: ...15 NOTE 2 Ship s speed and course displays are update every three seconds in the default setting They can be updated every second For details consult your dealer ...

Страница 20: ...system testing Opening closing the menu Press the MENU key Selecting menus Press Selecting menu items Press Selecting menu options changing settings Press DEP Menu This menu sets both the measuring depths for three layers and the reference layer for tide differential calculation LAYER 1 LAYER 2 LAYER 3 Depth for measuring layers 1 2 and 3 can be set between 2 and 250 meters in resolution of one me...

Страница 21: ...cho intensity level between 1 and 100 in resolution of 1 The higher the figure the stronger the echo level NOTE ECHO LEVEL SHIFT is not related to amplifier gain it does not affect detection of tide speed or ship s speed TRK Menu Sets up the course plot display PLOT RANGE Sets latitude and longitude range of course plot between 0 1 and 5 0 miles in resolution of 0 1 mile PLOT MODE You may select e...

Страница 22: ...times of 15 sec 30 sec 60 sec and 90 sec The default setting is 15 sec which is suitable for most conditions TIDE AVERAGE Direction and speed of a tide changes with time place and depth Therefore it is important that the current indicator not respond to quickly or too slowly to tide movement Tide averaging time is available between 0 and 5 minutes in the nearest minute 0 is for use of raw tide dat...

Страница 23: ...ck of the system displaying the results about 40 seconds after turning on the power Figure 20 Display unit and transceiver unit Selecting operating mode Press the MODE key to select operating mode among water tracking ground tracking or automatic selection Selected mode appears at top right corner on the display N Nav Figure 21 Location of operating mode indication on echo display ...

Страница 24: ...peed data Auto Tracking Mode Uses ground tracking mode when bottom echo is available Switches to water tracking mode or nav aided mode when bottom echo is lost Bottom echo is continuously searched for and if re acquired the ground tracking mode is restored Setting measuring depths 1 Press the MENU key 2 Press to select DEP menu 3 Press to select layer 4 Press to set depth 5 Repeat steps 1 4 to set...

Страница 25: ...ting tide differential layer 1 On the DEP menu press to select REF TIDE DIFFERENCE 2 Press to set layer Figure 22 How to set tide differential Turning off the power Press the power switch on the display unit ...

Страница 26: ...can also be set directly on the echo display Selecting a layer setting depth 1 On the echo display press to select layer desired Selected layer s depth indication changes from white to orange Figure 23 Echo display 2 Press to set depth DEPTH SETTING appears while setting depth 3 Press to finish Depth indications change from orange to white ...

Страница 27: ...ct SPEED RANGE 4 Press to set speed Default setting 1 0 knot Setting echo depth range 1 Press to select ECHO DEPTH RANGE 2 Press to set depth Default setting 100 meters Setting echo intensity 1 Press to select ECHO LEVEL SHIFT 2 Press to set echo intensity Registering settings closing the menu Press the MENU key Figure 24 ECHO menu ...

Страница 28: ... menu Setting the plot range 1 Press the MENU key 2 Press to select the TRK menu 3 Press to select PLOT RANGE 4 Press to set plot range Setting plot orientation 1 Press to PLOT MODE 2 Press to select HU Head up or NU North up Setting tide vector plotting interval 1 Press to select the MARK menu 2 Press to select TIDE HISTORY 3 Press to set plotting interval Figure 26 MARK menu ...

Страница 29: ...be entered When the event mark memory is full the oldest event mark is erased to make room for the latest Target point mark The TARGET POINT key inscribes a target point mark on the display The target point mark is useful for estimating 3 D deformation of fishing tackle net etc by the effect of tides at different depths 25 target point marks can be entered When the target point mark memory is full...

Страница 30: ...sent position The trip distance indication is automatically reset to zero Figure 29 Course plot display showing location of trip distance indication Calibrations offsets Offsets can be applied to measured values to further refine accuracy This can be done on the CALB menu Opening the system menu 1 Press the DISP MODE key to display the echo display 2 While pressing and holding down the TRIP key pr...

Страница 31: ...Water Speed Display Setting 1 Press the DISP MODE key to display the echo display 2 While pressing and holding down the TRIP key press the MENU key 3 Press to select MODE 4 Press or to select WATER SPEED 5 Press or to select T D or NAV T D Ship s speed tide and tide differential are calculated from doppler shift frequency Press the MODE key to select measuring mode in the sequence of G Ground W Wa...

Страница 32: ...Data Setting 1 Press the DISP MODE key to display the echo display 2 While pressing and holding down the TRIP key press the MENU key 3 Press to select MODE 4 Press or to select NAV DATA 5 Press or to select L L or SPD L L Calculates speed internally from position data change SPD Takes speed data from external navigator as they are Select SPD if connected with GPS ...

Страница 33: ...t it is within prescribed rating Cleaning of units Display unit transceiver unit Accumulated dirt can be wiped off with a soft cloth If necessary a mild detergent diluted in water may be used Chemical cleaners should not be used to clean any unit they can remove paint and markings Transducer unit Barnacles and other marine life adhering to the transducer face can cause a considerable drop in perfo...

Страница 34: ...play unit color is distorted or display is too bright dark adjust BRILL control certain colors are abnormal or picture jumps check for magnets near display unit try turning off and on the power to restore normal picture tide vector is not displayed TIDE HISTORY on the MARK menu may be set to 0 no echoes are displayed ECHO LEVEL SHIFT on the ECHO menu may be set too narrow If ship s track is not di...

Страница 35: ...enu 2 Press to select SELF TEST 3 Press to select test Self test menu description SYS Conducts general check of all circuit boards ECHO Checks receiver and transmitter PNL Checks key and switches of display unit 4 Press the EVENT key to start test 5 Press the MENU key when test is completed To quit the self test Select SELF TEST OFF on the MODE menu and press the EVENT key MODE CALB SELF TEST OFF ...

Страница 36: ...NT key The echo display appears and the demonstration begins DEMO DATA OUTPUTTING appears while the demonstration display is on All data shown is for purpose of demonstration it is not actual data To quit the demonstration display select DEMONSTRATION OFF on the MODE menu and press the EVENT key Figure 33 MODE menu MODE CALB SELF TEST OFF SYS OFF ON T D NAV SPD L L ECHO PNL DEMONSTRATION WATER SPE...

Страница 37: ...switch setting in hexadecimal notation FT VOL 66503201 JFTA Board ROM prog no FT NEM 1 2 3 4 5 6 7 OK JFTA Board memory test TX DEV 1 OK TX device test IF VOL 66500401 JIFA Board ROM prog no IF MEM 1 2 3 JIFA Board memory test IF DSW 00 00 00 JIFA Board s DIP switch setting in hexadecimal notation IF DEV 1 JIFA Board device test IF AN1 RU3 00V RL2 00V OK AD Converter reference voltage test IF AN2 ...

Страница 38: ...t of beam 3 JCPA STXA 100 External position data JCPA JIFA 101 External speed data JCPA JIFA 102 External time data JCPA JIFA 103 External depth data JCPA JIFA 104 Heading data JCPA JIFA 105 Heading error angle JCPA JIFA 106 Water temperature data JCPA JIFA 200 External KP input interval JCPA JIFA abnormal external KP interval 201 Depth sensor input JLGA JCPA JIFA faulty temperature sensor 202 Inc...

Страница 39: ...on between 0 and 100 Checking echo display range Press the up and down arrow keys The echo display range should in steps of 50 between 0 and 300 Figure 34 Sample echo test display Panel test Press each key on the control panel one by one The pressed key s corresponding 0 on the display should change to 1 Figure 35 Panel test display ...

Страница 40: ...LEVEL SHIFT TRK PLOT RANGE PLOT MODE TRACK DISPLAY MARK PRESET REFERENCE VALUE TIDE HISTORY AVR SHIP SPD AVR TIDE AVERAGE WT SPD DEPTH SYSTEM MENU MODE SELF TEST OFF SYS ECHO PANEL DEMONSTRATION OFF ON WATER SPEED T D NAV NAV DATA SPD L L CALIB GT SPD CALIB WT SPD CALIB DRAFT LEVEL BEARING CALIB COURSE CALIB ...

Страница 41: ... Tide vector Three layers max 1000 pts Target point mark 25 pts Event mark 25 pts Ship s position Latitude longitude Orientation Head up true motion North up Trip distance indication Provided 3 Echo display Tide vector Three layers circular graph Tide differential Three layers measurement between two layers Video sounder Three directions 4 Other Self test All circuit boards controls demonstration ...

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