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Furuno CI-80 - page 1
DOPPLER SONAR CURRENT INDICA T OR CI-80 ...
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Furuno CI-80 - page 2
C 9-52, A shi hara- cho, Ni shinom i ya, J apan T el ephone: 0798-65-21 1 1 T el efax: 0798- 65-4200 Y our Local Agent /Dealer A ll rig hts res erved . PUB. No. OME-72390 CI-80 ( DAMI ) FIRST EDITION : FEB. 1995 F : JAN. 6, 2001 Printed in Japa n ...
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Furuno CI-80 - page 3
i SAFETY INSTRUCTIONS WARNING Immediately turn off the power at the switchboard if water leaks into the equipment or something is dropped in the equipment. Continued use of the equipment can cause fire or electrical shock. Contact a FURUNO agent for service. Do not disassemble or modify the equipment. Fire, electrical shock or serious injury can re ...
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Furuno CI-80 - page 4
ii T able of Content s PRINCIPLE OF MEA SUREMENT ................................................................................ 1 PRINCIPLE O F MEASUREM ENT , FEA TURE S.................................................................................. 1 TIDE, NA V -T IDE & T IDE DIFFERENTIAL ................................................... ...
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Furuno CI-80 - page 5
1 PRINCIPLE OF MEASUREMENT PRINCIPLE OF MEA SUREMENT , FE A TURES W hen a moving v essel emits an acoustical pulse into the w ater at an angle, a portion of emitted energy is reflected from the seabed and other microscopic obje cts in the sound p ath, such as plankton or air bubbles. The frequency of the received signal is shifted fr o m the transm ...
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Furuno CI-80 - page 6
2 Fixed GPS satellites Nav-aided speed (Pseudo ground tracking speed) Water tracking speed Ground tracking speed Near-surface layer :Base of measurement Figure 2 Ti d e Ti de is movement of watermass at a p articular depth. T o know absolute tide (speed on ground), the following two data are required: 1 Ship’s speed and course based on ground 2 S ...
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Furuno CI-80 - page 7
3 Nav T ide Nav-T ide is an absolute movement of w aterm ass a t a particular depth, taking speed information from the external navigator (GPS) as a pseudo ground tracking speed. T o calculate Nav-tide, the follow ing t w o data are required: 1 Ship’s speed and course obt ained by external navigation equipment (GPS) 2 Ship’s speed and course ba ...
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Furuno CI-80 - page 8
4 T ide Diff erence = 1 - 2 (Mov ement of layer B based on layer A) or = 2 - 1 (Mov ement of layer A based on layer B) Layer (B) :Base of measurement Layer (A) 2 1 Figure 5 TIDE, NA V -TIDE & TIDE DIFFERENTI AL Ti d e (Absolute tide) Absolute tide can be measured in the ground tracking mode. :Base of measurement Layer A Fixed Start of trip End ...
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Furuno CI-80 - page 9
5 S peed of lay er A based on ground (C1) can be calculated as follows: C1 = Vg – Vwa = 10 – 7 = 3 ( kt) Nav-Tide (Absolute tide) Absolute tide can be measured in the nav-aided mode. Nav-aided ship’s speed (Vn) is equivalent to ship’s ground tracking speed in the ideal conditions. That is, the nav-tide can be calculated by simply replacing ...
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Furuno CI-80 - page 10
6 Assuming that the ship, layer A and layer B are moving in the same direction, and ship’s speeds based on layer A (Vwa) and on layer B (Vwb) are measured as ; Vwa = 8 kt (Ship’s speed based on lay er A) Vwb = 5 kt (Ship’s speed based on lay er B) T ide differential calculations in ground tracking mode As an absolute ship’s speed (Vg) is av ...
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Furuno CI-80 - page 11
7 :Base of measurement 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 ...
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Furuno CI-80 - page 12
8 [RE A D THIS FIRST! !] IMPORT A NT NOTICE ON TIDE MEA SUREMENTS (In the nav-aided mode, tide accuracy depends heavily on gyro accuracy .) SETTING SHIP’S HEA DING The CI-80 has the nav-aided mode to measure absolute tides even in deep waters where ground track ing is unattainable. T o achieve reliable measurements, how ever , you must supply acc ...
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Furuno CI-80 - page 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 ...
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Furuno CI-80 - page 14
10 Features The CI-80 mainly consists of three units: a display unit, a transceiver unit, and a transducer , each compact enough to f it on small boats. Th e mai n feat u res of the C I-80 are; • Even in deep waters where ground (bottom) reference is not available acoustically , t he CI- 80 can provide absolute movements of measuring layers by re ...
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Furuno CI-80 - page 15
11 SYSTEM OVER VIEW Control Descriptio n Display un it (CI-80 0) T ransceiv er unit (CI-8 10) Figure 1 1 Display unit Fi g ure 12 T ransceiver uni t ...
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Furuno CI-80 - page 16
12 T able 1 Control description ON OFF DISP MODE MODE MENU CURSOR ON/OFF EVENT TRIP T ARGET POINT Control Description T urns the system on/off. Alternately selects echo display and course plot display . Selects tracking mode among ground tracking, water tracking, nav aided and automatic selection. Opens/closes the menu. Select menu. In menu operati ...
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Furuno CI-80 - page 17
13 How to Read th e Disp lay s The CI-80 has two display modes: echo display and co urse plot display . A display may be selected with the DIS P MO DE key . Echo displa y Figure 13 Sample echo display ...
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Furuno CI-80 - page 18
14 When speed or d epth data appe ars in red… S peed or dep th data containing error appears in red. Ship s speed Cannot find reference echo in respective tracking mode . T ide speed Cannot find echo in given lay er . Set depth Depth set is invalid. In ground tracking mode, depth should be shallow er than 7 m, or in the w ater tr ack ing mode no ...
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Furuno CI-80 - page 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 . ...
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Furuno CI-80 - page 20
16 MAIN MENU DESCRIPTION Most major functions of the CI-80 are carried out through an easy-to-follow menu system. The menu system consist s of two main groups of menus : main (operation) and system (testing, calibration). This chap ter covers the main menu. For complete menu tree, see pa ge 36. Basic Menu Operation Most major functions of the CI-80 ...
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Furuno CI-80 - page 21
17 ECHO Menu Sets up the echo display . SPEED RANGE: Sets length of tide speed v ector between 0.1 and 15.0 knots, in resolution of 0.1 knots. ECHO DEPTH RANGE: Sets echo depth range. Depth can be set either manually between 50 and 300 meters in resolution of 50 meters or automatically . I n AUTO, seabed depth is automatically selected as depth ran ...
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Furuno CI-80 - page 22
18 MA RK Me n u This menu sets measuring condit ions for tide vector and target point mark. PRESET REFERENCE V ALUE: Sets the effect of tide on the target point mark. The hig he r the figure, the greater the ef fect of tide. TIDE HIST OR Y : Set s tid e v ector pl ottin g inte rval , amon g 0 (turns off tide v ector display), 15 sec. (1/4 min.), 1 ...
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Furuno CI-80 - page 23
19 OPERA TION Basic Operating Pro ced ure T ur ning on th e sy stem 1. Tu rn on the tr ansceiver unit. 2. Tu rn on the display unit. 3. Adjust brilliance of display . The display unit conducts a check of the system, displaying the results about 40 seconds after turning on the power . Figure 20 Display unit and transceiver unit Select ing ope rating ...
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Furuno CI-80 - page 24
20 Ground T r acki ng Mode: Shows absolute ship and tide movements based on ground. (Bottom echo re quir ed.) W ater T racking Mode: Shows movement s of ship and tide relati ve to n ear-su rface w ater . Nav-aided Mode: Shows ship’s movement measured by the external navigation equipment, and the tide movements based on the nav speed d ...
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Furuno CI-80 - page 25
21 Setting tide diff erential l a y er 1. On the DEP menu, press / to select REF TIDE DIFFERENCE. 2. Pr ess / to set la yer . Figure 22 How to set tide dif ferential T urning off t he power Press the power switch on the display unit. ...
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Furuno CI-80 - page 26
22 Setting Tide Measuring Depths on the Echo Display Earlier you learned how to set tide measuring depths on the DEP menu. Measuring depths can also be set direc tly on the echo display . Select ing a lay er , s etting depth 1. On the echo display , press / to select lay er desired. Selected layer’s depth indication changes from white to orange. ...
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Furuno CI-80 - page 27
23 Setting up the Echo Display Sett i ng tide speed v ect or range 1 . P r e s s t h e MENU key . 2. Pr ess ◄ / ► to select the ECHO menu. 3. Pr ess / t o select SPEED RANGE. 4. Pr ess / t o set speed. (Default sett ing: 1. 0 knot ) Sett ing echo depth r a nge 1. Press / t o select ECHO DEP T H RANG E . 2. Pr ess / t o set depth. (Def ault sett ...
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Furuno CI-80 - page 28
24 Setting up the Co urse Plot Display The course plot display mainly plots ship’s tr ack. It can be displayed by pressing the DISP MODE key . Figure 25 Sample course plot display , TRK menu Sett i ng the plot range 1. Press the MENU key . 2. Pr ess ◄ / ► to select the TRK menu. 3. Pr ess / to select PLOT RAN GE. 4. Pr ess / t o set plot rang ...
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Furuno CI-80 - page 29
25 Marks The CI-80 has two types o f marks which can be inscribed on the display: event mark and target point mark. Figure 27 Appearance of event mark and target point mark Ev ent mark The EVENT key inscribes present position on the display . It is useful f o r marking important locations, e tc. 25 event mar ks may be entered. When the event mark m ...
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Furuno CI-80 - page 30
26 Erasing marks 1 . P r e s s t h e CURSOR O N / O F F key . 2. O perate the four arrow keys to place cursor on mark to erase. 3. Pr ess the EVENT key ( or T A RGET POINT key ). Calculating T rip Dist ance Press the TRIP key to start calculation of trip distance from present position. The trip distance indication is automatically reset to zero . F ...
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Furuno CI-80 - page 31
27 Displa y i ng the CA LB menu 1 . Press ◄ / ► to sele ct the C ALB menu . 2. Pr ess / t o select menu item. 3. Pr ess / to set o ffset . Menu items GT SPD CALIB: Raise setting when ground tr ack ing speed is slower than ship’s speed . W T SPD CALIB: Raise sett in g when water tracking speed is slower than ship’s speed . DRAFT LEVEL: Enter ...
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Furuno CI-80 - page 32
28 MODE CALB SELF TEST OFF SYS OFF ON T/D NA V SPD L/L ECHO PNL DEMONSTRA TION W A TER SPEED NA V DA T A *1: Sho wn when tide processor is activ e. *1 *1 Figure 31 MODE menu Nav Dat a Setting 1 . P r e s s t h e DISP MODE key to display the echo display . 2. W hile pressing and holding down the TRIP key press the MENU key . 3. Pr ess ◄ / ► to s ...
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Furuno CI-80 - page 33
29 MAINTENANCE & TROUBLESHOOTING Preventive Maintenance Regu lar checks • Regular maint enance is important for continued performance. Check the following on a monthly basis. • Check that all connectors and cables are securely tightened. • Check grounding systems of unit s for corrosion. • Also regularly measure voltage to confirm that ...
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Furuno CI-80 - page 34
30 T roubleshootin g The troubleshooting table which follows provides simple troubleshooting procedures which the user may use to restore normal operation. If normal operation cannot be restored, do not attempt to check inside any unit. Any re pair is best left to a qualified t echnician. T able 2 T roubleshooting table If… Then… power is on bu ...
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Furuno CI-80 - page 35
31 Self T est s, Demo n stratio n Disp lay The CI-80 has four self test s and a demonstration display which check the system f o r proper operation. Display the sy stem men u 1. Pr ess the DI S P MODE k ey to select the echo display . 2. W hile pressing and holding down the TRIP key , pre s s the MENU key . Conduct ing self t est s 1. Press ◄ / ? ...
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Furuno CI-80 - page 36
32 S tarting the de mons tration display The demonstration display checks the controls on the display unit and conducts a loopbac k test between the display unit and the transceiver unit. 1. Pr es s / to select DEMONSTRA T IO N. 2. Pr es s to se lect ON. 3. Pr es s the EVENT ke y . The echo display appears and the demonstration begins. "DEMO D ...
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Furuno CI-80 - page 37
33 Self T est Result s Sy stem test The system test chec k results appear at each pow er on or whenever the system chec k is conducted though the self test. SYSTEM CHECK ------- --CI-8 00---- ----- IP VOL 66503001** ICP Board R OM prog. no. IP DS W “00 00” IPU Board’s DIP sw itch setting in hexadecimal notation IP M EM 1 2 3 4 5 6 OK ICP Boar ...
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Furuno CI-80 - page 38
34 Error d isplay “OK” appears for normal memory IC test. For fault NG (No Good) and asterisk (*) appear next to ROM/RAM number . T able 3 Error number display and meaning Error number Reason Circuit boa rd to check 000 Input voltage JCP A, JIFA 001 Overheated transducer el ement JLGA, JCP A, JIF A* 002 Abnorm al T x B voltage STX A, UP W, JCP ...
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Furuno CI-80 - page 39
35 Echo te st Checking echo display intensity Press the right and left arrow keys. The SHIFT indication should change with key operation, between 0 and 100. Checking echo display range Press the up and dow n arrow keys. The echo display range should in steps o f 50 between 0 and 300 . Figure 34 Sample echo test display Panel t est Press each key on ...
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Furuno CI-80 - page 40
36 MENU TREE MAIN MENU DEP LA YER1 LA YER2 LA YER3 REF TIDE DIFFERENCE ECHO SPEED RANGE ECHO DEPTH RANGE ECHO LEVEL SHIFT TRK PL O T RANGE PL O T MODE TRACK DISPLA Y MARK PRESET REFERENCE V AL UE TIDE HIST ORY A VR SHIP SPD A VR TIDE A VERAGE W T SPD DEPTH SYSTEM MENU MODE SELF TEST OFF SYS ECHO P ANEL DEMONSTRA TION OFF ON W A TER SPEED T/D NA V N ...
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Furuno CI-80 - page 41
SP-1 SPEC I FI CAT I ONS O F CI-80 DOPPL ER SO NAR CURRENT INDI CATOR 1. Gener al (1) Gr o und tra ck ing acqui ra ble 3 m -200 m ( m easur e able range 300m) de pt h (2) Measurable tide ra n ge 2m- 100 m , o r 75% of de pth, whicheve r is sh allowe r (3) Me as urable tide depth 10m (me asur able from 7m) (4) Me asur able ship's spee d Fore /a ...
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