Page 3 - SAFETY INSTRUCTIONS; ELECTRICAL SHOCK HAZARD; Do not open the equipment.; WARNING; Keep heater away from equipment.
i SAFETY INSTRUCTIONS WARNING Immediately turn off the power at theswitchboard if water leaks into theequipment or something is dropped inthe equipment. Continued use of the equipment can causefire or electrical shock. Contact a FURUNOagent for service. Do not disassemble or modify theequipment. Fir...
Page 4 - ii; CAUTION; WARNING LABEL; TFT LCD
ii CAUTION Check the zinc plate (anticorrosionmeasure) regularly for corrosion andreplace it when the ship is drydocked. Corrosion may occur. As a result the transducer may fall out, allowing water toleak inside the vessel. Do not use the equipment for other thanits intended purpose. Damage to the e...
Page 5 - iii; TABLE OF CONTENTS
iii TABLE OF CONTENTS FOREWORD ................................................................................................................... v SYSTEM CONFIGURATION .......................................................................................... vi DISPLAY EXAMPLE .......................
Page 6 - iv
iv 4. MAINTENANCE & TROUBLESHOOTING ............................................................ 4-1 4.1 Routine Maintenance ........................................................................................................... 4-1 4.2 Replacing Fuses ..........................................
Page 7 - FOREWORD; A Word to the Owner of the CI-68; Single-mold transducer plus compact
v FOREWORD A Word to the Owner of the CI-68 Congratulations on your choice of the FURUNO CI-68 Doppler Sonar Current Indicator. We are confident you will see why FURUNO has become synonymous with quality and reliability. For over 50 years FURUNO Electric Company has enjoyed an enviable reputation fo...
Page 8 - vi; SYSTEM CONFIGURATION; OR
vi SYSTEM CONFIGURATION MONITOR UNITMU-100C CONTROL UNITCI-6888 TRANSCEIVER UNITCI-6810 TRANSDUCERCI-620 JUNCTION BOXCI-630 100/110/115/200/220/230/240 VAC, f 1, 50-60Hz DC-AC INVERTERTR-2451 24 VDC : Standard Supply : Optional Supply : Local Supply CONTROL UNITCI-6888 VGA Monitor OR NMEA1 Output NM...
Page 9 - vii; DISPLAY EXAMPLE; Object and color; Tide of layer 1: Yellow
vii DISPLAY EXAMPLE Object and color • Tide of layer 1: Yellow • Tide of layer 2: Purple • Tide of layer 3: Light-blue • Own ship speed vector: Green • Heading line: W hite (dashed) Tide vector display
Page 11 - OPERATIONAL OVERVIEW; Control unit; Control Function
1-1 1. OPERATIONAL OVERVIEW 1.1 Controls POWER F1 F2 F3 LYR1 LYR2 LYR3 RANGE TRACK MODE DISP MODE BRILL MENU - + FURUNO CURRENT INDICATOR CursorPad Setting Knob Control unit Control Function POW ER Turns power on or off. F1 – F3 Function keys (menu shortcut keys) LYR1 – LYR3 Set tide measuring depth...
Page 12 - Diagnostic test
1. OPERATIONAL OVERVIEW 1-2 1.2 Turning the Power On/Off 1. Press the [POWER] switch at the left hand side of the control unit to turn the power on. A beep sounds, the equipment turns on, and the lamp above the switch lights. The equipment conducts the diagnostic test to check for proper operation b...
Page 13 - Adjusting LCD Brilliance; monitor; Brilliance adjustment window
1. OPERATIONAL OVERVIEW 1-3 1.3 Adjusting LCD Brilliance You can adjust the brilliance of the FURUNO-supplied monitor as below. To adjust the brilliance of a commercial monitor, see its owner’s manual. 1. Press the [BRILL] key to open the brilliance adjustment window. H H BRILLIANCE g g g g g g c CU...
Page 14 - Display; Tide vector display
1. OPERATIONAL OVERVIEW 1-4 1.4 Choosing a Display This current indicator has six main displays: tide vector display, ship’s speed display, course plot display, text display, echo level display and graph display. You may choose a display by pressing the [DISP MODE] key. 1.4.1 Tide vector display The...
Page 15 - speed; Ship’s speed display; display; Graph display
1. OPERATIONAL OVERVIEW 1-5 1.4.2 Ship’s speed display The ship’s speed display shows ship’s fore-aft and port-starboard speeds in analog and digital form. TripDistance Ship Speed(Synthesized Speed) Fore-Aft SpeedHistory Graph Port-Starboard Speed History Graph Fore-Aft Speed Port-StarboardSpeed Dri...
Page 16 - The course plot display plots ship’s track along with tide vectors.; The text display provides various nav data in digital format.
1. OPERATIONAL OVERVIEW 1-6 1.4.4 Course plot display The course plot display plots ship’s track along with tide vectors. Text Window Scale DIV Tide Display Interval Position North Mark Tide Vector Ship’s Track Own Ship Position Course plot display 1.4.5 Text display The text display provides variou...
Page 17 - Echo level display
1. OPERATIONAL OVERVIEW 1-7 1.4.6 Echo level display The echo level display shows the strength of the echoes captured by three sounding beams. Note that ECHO LEVEL in the MODE menu must be set to ON to show the echo level display. Echo Level Tide Vector Beam 2 Beam 1 Beam 3 Echo Display Range Echo l...
Page 18 - Measuring; Depth setting window
1. OPERATIONAL OVERVIEW 1-8 1.5 Setting Measuring Depths Set the depths at which you wish to measure tide speed and direction as below. Note that layer 3 cannot be set when BTM TIDE TRACK in the MENU 1 menu is set to ON. 1. Press the [LYR1], [LYR2] or [LYR3] key as appropriate to show the depth sett...
Page 19 - Choosing Speed Tracking Mode; Absolute ship and tide movements based on ground and current (tide; Tracking modes
1. OPERATIONAL OVERVIEW 1-9 1.6 Choosing Speed Tracking Mode The tracking mode is available in ground tracking, water tracking, NAV and automatic. Ground tracking: Absolute ship and tide movements based on ground and current (tide display (bottom echo must be present). Water tracking: Ship and tide ...
Page 20 - Choosing the Range; or; Display Range
1. OPERATIONAL OVERVIEW 1-10 1.7 Choosing the Range You may choose the speed range as follows: 1. Press the [RANGE] key to show the range setting window. TIDE SPEED RANGE KNOB OR CURSOR PAD: CHANGE SETTING 1.0 kt (0.5-10.0) Range setting window (example: range setting window for tide vector display)...
Page 21 - INTERPRETING THE DISPLAYS; Tide Vector Display
2-1 2. INTERPRETING THE DISPLAYS 2.1 Tide Vector Display Tide differential between reference and deeper of other two layers Tide differential between reference and shallower of other two layers ElectronicBearing Scale* Note: Missing or wrongdata is denotedwith " --". Tide Average Setting Tra...
Page 22 - Description of indications on tide vector display; Item Description
2. INTERPRETING THE DISPLAYS 2-2 Description of indications on tide vector display Item Description Heading Ship’s heading fed from a heading sensor. Mode Shows current tracking mode, as selected with the [TRACK MODE] key. Mode marker Shows tracking mode and echo availability for last three minutes,...
Page 25 - Ship’s Speed Display
2. INTERPRETING THE DISPLAYS 2-5 2.2 Ship’s Speed Display Trip Distance Ship Speed(Synthesized Speed) Port-Starboard Speed History Graph Fore-Aft Speed Port-StarboardSpeed Drift Angle Own Ship Vector Synthesized Speed Vector (Green) Fore-Aft SpeedHistory Graph Ship’s speed display Description of shi...
Page 26 - tracking mode and water speed for water tracking mode.
2. INTERPRETING THE DISPLAYS 2-6 Description of ship’s speed display indications (con’t from previous page) Item Description Own ship vector* The own ship vector shows port-starboard speed on the x-axis and fore-aft speed on the y-axis. The “synthesized speed vector” (green) appears when SCALE SYNC ...
Page 29 - Course Plot Display; Course plot display
2. INTERPRETING THE DISPLAYS 2-9 2.4 Course Plot Display *: Sensor required. North Mark Text Window Scale DIV Tide Display Interval Position* Tide Vector Ship’s Track Own Ship Position Course plot display Description of course plot display indications Item Description Text window The text window can...
Page 30 - Echo Level Display
2. INTERPRETING THE DISPLAYS 2-10 2.5 Echo Level Display Echo Level Tide Vector Beam 2 Beam 1 Beam 3 Echo Display Range Echo level display Description of echo level display indications Item Description Echo level Echo status of beam 1 (fore), beam 2 (starboard) and beam 3 (port) is displayed in eigh...
Page 31 - kt; GT SPEED kt; Speed and course error displays
2. INTERPRETING THE DISPLAYS 2-11 2.6 Error Display An error display is generated whenever display data or measured data is abnormal. When this occurs the corresponding data will be unreliable. Speed and course (fore-aft, port-starboard, drift angle) 12.3 333 SPD/CSE kt (1) No data input from tran...
Page 32 - Tide for three layers/tide differential; TIDE SPD/VECTOR kt
2. INTERPRETING THE DISPLAYS 2-12 Tide for three layers/tide differential (4) Depth setting error 1 2m 2.3 140 TIDE SPD/VECTOR kt (3) Echo from measuring layer is abnormal 2.3 140 TIDE DIFF kt 3) Echo from measuring layer is abnormal 1 ® 2 Tide vector, speed, graph and course plot displays Text and ...
Page 33 - CUSTOMIZING THE SYSTEM; Operation; MODE menu
3-1 3. CUSTOMIZING THE SYSTEM Less-often used functions are stored in the menu. There are four main menus, MENU 1, MENU 2, ALARM and INSTALLATION. The MENU 2 and INSTALLATION menus have three sub menus each. 3.1 Menu Operation 1. Press the [MENU] key to open the menu. The last-used menu appears. TID...
Page 35 - Keys
3. CUSTOMIZING THE SYSTEM 3-3 3.2 Function Keys 3.2.1 Programming the function keys The function keys ([F1]-[F3]) provide menu shortcut operation. You may program the keys as follows: 1. Press the [MENU] key to display the main menu. 2. Choose menu desired. Note: The ALARM and INSTALLATION menus can...
Page 36 - MENU 1 menu
3. CUSTOMIZING THE SYSTEM 3-4 3.3 MENU 1 Menu This menu mainly provides items for adjustment of tide parameters. SHIP SPEED AVG : 15 sec 30 sec 60 sec 90 sec TIDE AVERAGE : 2 min REF TIDE DIFF : LAYER 1 LAYER 2 LAYER 3 BEARING MODE : 32 CMPS 360 TRUE NAV MODE : OFF ON BOTTOM SEARCH: NO YES BTM TIDE ...
Page 37 - BOTTOM SEARCH; How to acquire bottom echo
3. CUSTOMZING THE SYSTEM 3-5 BOTTOM SEARCH BOTTOM SEARCH enables reacquisition of temporarily lost ground echo, in the water tracking mode. When the bottom echo is lost for a short while due to air bubbles, or the equipment tends to track on false bottom, acquire the bottom echo manually as follows:...
Page 38 - ECHO RANGE
3. CUSTOMIZING THE SYSTEM 3-6 ECHO RANGE Choose the maximum depth to display echoes, from among 50, 100, 150, 200, 250, 300, 350, 400, 450, 500 (m). TVG Turn echo TVG on or off. GAIN Adjust echo level display color. The higher the digit the nearer to the strongest color (reddish brown). “GAIN” does ...
Page 39 - menu; DISP menu
3. CUSTOMZING THE SYSTEM 3-7 3.4 MENU 2 Menu 3.4.1 MODE menu This menu mainly turns displays on or off. All displays cannot be turned off; at least one must be turned on. Any display turned off on the MODE menu is removed from selection with the [DISP MODE] key. TIDE VECTOR : OFF ON SHIP SPEED : OFF...
Page 40 - ECHO LEVEL; DISP1 menu
3. CUSTOMIZING THE SYSTEM 3-8 ECHO LEVEL Enable or disable the echo level display. BACKGROUND CLR Choose the background color from among black, white and blue. 3.4.2 DISP1 menu COMMON SETTINGS TIDE RANGE : 3.0kt SHIP SPD VCTR : OFF ON HEADING LINE : OFF ON TIDE VECTOR LAYER 1 : OFF ON LAYER 2 : OFF ...
Page 42 - DISP2 menu; Echo level displays
3. CUSTOMIZING THE SYSTEM 3-10 3.4.3 DISP2 menu TIDE VECTOR ECHO LEVEL : OFF ON DISP MODE : SOUNDER GRAPH SHIP SPEED SCALE SYNC : OFF ON DRIFT SCALE : 1.0 kt SCALE : 10.0 kt DRIFT HISTORY : 0.5 kt 1 kt 2 kt HISTORY : 4 kt 8 kt 16 kt 32 kt HISTORY SHIFT : 0 kt COURSE PLOT SCALE : 1:10000 1:20000 1:50...
Page 43 - in the DISP2 menu for it to become active.
3. CUSTOMZING THE SYSTEM 3-11 SCALE SYNC Choose whether to interlock port-starboard speed range with fore-aft speed range or not. DRIFT SCALE Set the port-starboard speed range on the ship’s speed display. The choices are 0.5, 1.0, 2.0, 3.0, 5.0 and 10.0 (kt). Note: You may adjust DRIFT SCALE at any...
Page 44 - Menu; types; Shallow TD; SHIP SPEED; Sets distance and time for trip alarm.
3. CUSTOMIZING THE SYSTEM 3-12 3.5 ALARM Menu The ALARM menu sets the parameters for the tide speed and tide direction alarms, ship’s speed alarm and trip distance alarm. When an alarm setting is violated, the audible alarm sounds and a warning message (flashing) appears. To silence the audible alar...
Page 45 - ship’s speed alarms; to place the cursor on the main menu title field.; ALARM menu
3. CUSTOMZING THE SYSTEM 3-13 3.5.2 Setting/Canceling tide speed, tide direction, tide differential and ship’s speed alarms This section shows how to set the tide speed, tide direction, tide differential and ship speed alarms. As an example, for LAYER 1, set the tide speed alarm for 1-2 kts and tide...
Page 47 - Trip distance alarm; TRIP DIST; Distance trip alarm setting screen
3. CUSTOMZING THE SYSTEM 3-15 S E NE SE SW W NW 3.0kt DIR LAYER1 p q KEY MAX t u KEY MIN STATUS 0.0kt 0 ° TIDEMIN 1.0ktMAX 2.0kt QUITANY FUNC KEY DIRECTIONMIN 350 ° MAX 10 ° Tide directionalarm setting N N Tide speedalarm setting Starting point Ending point Alarm setting screen (tide) 11. Press any ...
Page 48 - Trip time alarm; TRIP TIME; Time trip alarm setting screen
3. CUSTOMIZING THE SYSTEM 3-16 Trip time alarm The trip alarm sounds when the preset trip time has elapsed. 1. Press the [MENU] key to open the menu. 2. Press ▲ to place the cursor on the main menu title field. 3. Press ◄ or ► to choose ALARM. 4. Press ▲ or ▼ to choose TRIP-TIME. 5. Press ► to show ...
Page 49 - TROUBLESHOOTING; Maintenance; General checks; Check the following monthly.; Cleaning; Transducer; Do not paint the transducer face.
4-1 4. MAINTENANCE & TROUBLESHOOTING Periodic checks and maintenance are important for maintaining performance. This chapter contains maintenance and troubleshooting instructions to be followed to obtain optimum performance and the longest possible life of the equipment. Before attempting any ma...
Page 50 - Fuses; The transceiver unit,; Unit Type
4. MAINTENANCE & TROUBLESHOOTING 4-2 4.2 Replacing Fuses The transceiver unit, monitor unit and control unit are equipped with a fuse which protects them from overvoltage and equipment fault. If a fuse blows, find the cause before replacing it. If it blows again after replacement, contact your d...
Page 51 - Troubleshooting table; If...; Then...
4. MAINTENANCE & TROUBLESHOOTING 4-3 4.3 Troubleshooting Below are simple troubleshooting procedures which the user may follow to try to restore normal operation. If normal operation cannot be restored, do not attempt to check inside any unit. Any repair work is best left to a qualified technici...
Page 52 - test
4. MAINTENANCE & TROUBLESHOOTING 4-4 4.4 Diagnostics The current indicator is equipped with several test facilities to check it for proper operation. 4.4.1 General test The general test mainly checks the ROM, RAM and voltages. 1. Press the [MENU] key to open the menu. 2. Press ▲ to place the cur...
Page 53 - Diagnostic test results
4. MAINTENANCE & TROUBLESHOOTING 4-5 XX: Program Version No. Echo display for three beams CI-68 CI-6888VOL. 6651000-XX.XX MEM. 1 2 3 OK SIO. OK CI-6810VOL. 6651001 -XX.XX TBL.MEM. 1 2 3 4 5 6 7 8 OK ANA. 12V;12.03V BV;110.0V TRM. +25.02 ° C DSW. 00 00 00 00 DSW. -- 00 00 00 Model ControlUnitTest...
Page 54 - Panel test
4. MAINTENANCE & TROUBLESHOOTING 4-6 4.4.2 Panel test The panel test checks the keys and setting knob on the control unit for proper operation. 1. Open the MENU 1 menu and choose PANEL from TEST. 2. Press any function key to start the test. A screen for testing the control unit appears on the di...
Page 55 - pattern; Test pattern
4. MAINTENANCE & TROUBLESHOOTING 4-7 4.4.3 Test pattern The test pattern checks for proper display of colors. 1. Open the MENU 1 menu and choose PATTERN from TEST. 2. Press any function key to start the test. Test Pattern Black Blue Green 16 tones of red 16 tones of green 16 tones of blue White ...
Page 56 - Error Messages and Alerts; Error messages and alerts
4. MAINTENANCE & TROUBLESHOOTING 4-8 4.5 Error Messages and Alerts The current indicator displays an error message and sounds the audible alarm when error is detected. To silence the alarm, press any arrow on the CursorPad for transceiver-related alarm or turn off the alarm in the ALARM menu in ...
Page 57 - APPENDIX; MENU TREE; Default settings shown in bold italic.
AP-1 APPENDIX MENU TREE Default settings shown in bold italic. MENU key MENU 1 SHIP SPD AVG ( 15 sec , 30 sec, 60 sec, 90 sec) TIDE AVERAGE (15 sec, 1 min, 2 min , 3 min, 5 min, 10 min, 20 min) REF TIDE DIFF ( LAYER 1 , LAYER 2, LAYER 3) BEARING MODE ( 32 CMPS , 360 TRUE) NAV MODE ( OFF , ON) BOTTOM...
Page 59 - TIDE MEASUREMENT IN NAV MODE; Setting ship’s heading; Procedure
TIDE MEASUREMENT IN NAV MODE AP-3 TIDE MEASUREMENT IN NAV MODE The accuracy of tide measurement in the NAV mode depends heavily on gyrocompass accuracy. Setting ship’s heading The current indicator has a NAV mode which measures tides in deep waters where ground tracking is not available. To achieve ...
Page 60 - Why gyro data is important in the NAV mode; Tide calculation in the ground tracking mode; With gyro error
TIDE MEASUREMENT IN NAV MODE AP-4 Why gyro data is important in the NAV mode If you consider the difference of tide vector calculations in the ground tracking mode and the NAV mode, you can see the importance of gyro (heading) data. Tide calculation in the ground tracking mode In the ground tracking...
Page 61 - Tide calculation in NAV mode
TIDE MEASUREMENT IN NAV MODE AP-5 Tide calculation in NAV mode In the NAV mode, the current indicator derives tide information from the following data: (1) Ship’s speed/course fed from navigator (GPS) (nav speed = pseudo ground speed) (2) Ship’s speed/course based on target layer (water speed) (3) B...
Page 62 - PRINCIPLE OF OPERATION
PRINCIPLE OF OPERATION AP-6 PRINCIPLE OF OPERATION When a moving vessel emits an acoustical pulse into the water at an angle, a portion of the emitted energy is reflected from the bottom and other microscopic objects in the sound path, such as plankton or air bubbles. The frequency of the received s...
Page 63 - Ship’s Speed; Ground tracking speed:; Ship’s speed and course relative to bottom (fixed base); Water tracking speed:; Ship’s speed and course relative to water layer just below the; Tide
PRINCIPLE OF OPERATION AP-7 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 ways: Ground tracking speed: Ship’s speed and course relative to bottom (fixed base) (Absolute speed) Water tracking speed...
Page 64 - Tide Differential; Or
PRINCIPLE OF OPERATION AP-8 Absolute Tide = (1) – (2) Fixed Layer (A) : Base of measurement 1 2 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...
Page 65 - Absolute tide can be measured in the ground tracking mode.
PRINCIPLE OF OPERATION AP-9 Tide, Nav-tide and Tide Differential Tide (absolute tide) Absolute tide can be measured in the ground tracking mode. :Base of measurement Layer A Fixed Start oftrip End oftrip (Moving at 10 kt on ground) (Moving at 3 kt on ground) 10 NM (1 hour trip) 2 1 Assume that the s...
Page 66 - Tide differential; Tide differential calculations in ground tracking mode
PRINCIPLE OF OPERATION AP-10 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 modes. :Base of measurement Layer A Start oftrip End oftrip (Moving) 10 NM (1 hour trip) Layer B (Moving) 2 kt 5 kt ...
Page 68 - Tide differential calculations in water tracking mode
PRINCIPLE OF OPERATION AP-12 Tide differential calculations in water tracking mode Tide speeds of layer A (C1) and layer B (C2) relative to near-surface layer (Vw) are calculated as follows: Tide differential based on layer A (speed of layer B as viewed from layer A) D1 = Vw - Vwa (Speed of layer A ...
Page 69 - TIDE
SP - 1 E7252S01B 031120 SPECIFICATIONS OF CI-68 CURRENT INDICATOR 1 TIDE 1.1 Speed 0.0-9.0 kts 1.2 Accuracy W ithin 0.2 kts 1.3 Direction All directions in one-degree steps (360°) 1.4 No. of measuring layers 3 1.5 Range of measurement 2-150 m Up to 75% of depth. The depth must be greater than 22 m i...
Page 71 - INDEX
IN-1 INDEX A ALARM menu ............................................3-12 Alarms disabling audible alarm..........................3-16 disabling/enabling ..................................3-16 ship’s speed ...........................................3-13 tide differential ................................
