Furuno CI-68 User Manual

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Page 1

DOPPLER SONAR

CURRENT INDICATOR

CI-68

Page 2

9-52 Ashihara-cho,9-52 Ashihara-cho,

*00014802200**00014802200*

*OME72520A10**OME72520A10*

Nishinomiya, JapanNishinomiya, Japan

Telephone :Telephone : 0798-65-21110798-65-2111 faxfa

ll rights reserved.

PUB.No.PUB.No. OME-72520OME-72520

0798-65-42000798-65-4200

Printed in JapanPrinted in Japan

Your Local Agent/DealerYour Local Agent/Dealer

IRST EDITION :

IRST EDITION : OCT.OCT. 20032003

A1A1 :: NOV.NOV. 27,200327,2003

(( DAMIDAMI ))

CI-68CI-68

* 0 0 0 1 4 8 0 2 2 0 0 ** 0 0 0 1 4 8 0 2 2 0 0 *

*OME72520A10**OME72520A10*

* O M E 7 2 5 2 0 A 1 0 ** O M E 7 2 5 2 0 A 1 0 *

Page 3

SAFETY INSTRUCTIONS

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel should work inside the equipment.

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 result.

WARNING

Keep heater away from equipment.

A heater can melt the equipment's power cord, which can cause fire or electrical shock.

Use the proper fuse.

Use of a wrong fuse can damage the equipment.

Do not operate the equipment with wet hands.

Electrical shock can result.

Do not place liquid-filled containers on the top of the equipment.

Fire or electrical shock can result if a liquid spills into the equipment.

Immediately turn off the power at the switchboard if the equipment is emitting smoke or fire.

Continued use of the equipment can cause fatal damage to the equipment. Contact a 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.

Page 4

CAUTION

Check the zinc plate (anticorrosion measure) regularly for corrosion and replace it when the ship is drydocked.

WARNING LABEL

A warning label is attached to the transceiver and monitor units. Do not remove the labels. If a label is missing or damaged, contact a FURUNO agent or dealer about replacement.

Corrosion may occur. As a result the transducer may fall out, allowing water to leak inside the vessel.

Do not use the equipment for other than its intended purpose.

Damage to the equipment or bodily injury may result if the equipment is misused.

Do not transmit with the transducer out of water, when drydocked, etc.

The transducer may become damaged.

Turn off the power at the switchboard immediately whenever you feel the equipment is abnormal.

Turn off the equipment at the switchboard if it becomes warm or is making strange noises. Contact your dealer at your earliest convenience.

WARNING

To avoid electrical shock, do not remove cover. No user-serviceable parts inside.

Transceiver Unit Name: Warning Label (1) Type: 86-003-1011-1 Code No.: 100-236-231

Monitor Unit Name: Warning Label (2) Type: 03-129-1001-1 Code No.: 100-236-741

TFT LCD

The high quality TFT LCD displays 99.99% of its pixels. The remaining 0.01% of pixels may light or dropout, however this is not an indication of malfuction; it is a characteristic of the LCD.

Page 5

FOREWORD...................................................................................................................v

SYSTEM CONFIGURATION..........................................................................................vi

DISPLAY EXAMPLE.....................................................................................................vii

1. OPERATIONAL OVERVIEW.................................................................................. 1-1

1.1 Controls................................................................................................................................ 1-1

1.2 Turning the Power On/Off.................................................................................................... 1-2

1.3 Adjusting LCD Brilliance ...................................................................................................... 1-3

1.4 Choosing a Display..............................................................................................................1-4

1.4.1 Tide vector display .................................................................................................... 1-4

1.4.2 Ship’s speed display ................................................................................................. 1-5

1.4.3 Graph display ............................................................................................................ 1-5

1.4.4 Course plot display ................................................................................................... 1-6

1.4.5 Text display ............................................................................................................... 1-6

1.4.6 Echo level display ..................................................................................................... 1-7

1.5 Setting Measuring Depths ................................................................................................... 1-8

1.6 Choosing Speed Tracking Mode.......................................................................................... 1-9

1.7 Choosing the Range .......................................................................................................... 1-10

2. INTERPRETING THE DISPLAYS.......................................................................... 2-1

2.1 Tide Vector Display .............................................................................................................. 2-1

2.2 Ship’s Speed Display ........................................................................................................... 2-5

2.3 Graph Display ...................................................................................................................... 2-7

2.4 Course Plot Display .............................................................................................................2-9

2.5 Echo Level Display ............................................................................................................ 2-10

2.6 Error Display ...................................................................................................................... 2-11

3. CUSTOMIZING THE SYSTEM............................................................................... 3-1

3.1 Menu Operation ................................................................................................................... 3-1

3.2 Function Keys ...................................................................................................................... 3-3

3.2.1 Programming the function keys ................................................................................ 3-3

3.2.2 Using the function keys............................................................................................. 3-3

3.3 MENU 1 Menu .....................................................................................................................3-4

3.4 MENU 2 Menu .....................................................................................................................3-7

3.4.1 MODE menu ............................................................................................................. 3-7

3.4.2 DISP1 menu.............................................................................................................. 3-8

3.4.3 DISP2 menu............................................................................................................ 3-10

3.5 ALARM Menu..................................................................................................................... 3-12

3.5.1 Alarm types ............................................................................................................. 3-12

3.5.2 Setting/Canceling tide speed, tide direction, tide differential and

ship’s speed alarms ................................................................................................ 3-13

3.5.3 Setting the trip alarm............................................................................................... 3-15

3.5.4 Disabling/enabling the audible alarm...................................................................... 3-16

3.5.5 Disabling an alarm ..................................................................................................3-16

iii

Page 6

4. MAINTENANCE & TROUBLESHOOTING............................................................ 4-1

4.1 Routine Maintenance........................................................................................................... 4-1

4.2 Replacing Fuses .................................................................................................................. 4-2

4.3 Troubleshooting ................................................................................................................... 4-3

4.4 Diagnostics ..........................................................................................................................4-4

4.4.1 General test............................................................................................................... 4-4

4.4.2 Panel test ..................................................................................................................4-6

4.4.3 Test pattern ............................................................................................................... 4-7

4.5 Error Messages and Alerts .................................................................................................. 4-8

APPENDIX................................................................................................................AP-1

MENU TREE.............................................................................................................................. AP-1

TIDE MEASUREMENT IN NAV MODE..................................................................................... AP-3

PRINCIPLE OF OPERATION.................................................................................................... AP-6

SPECIFICATIONS.....................................................................................................SP-1

INDEX.........................................................................................................................IN-1

Page 7

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 for innovative and dependable marine electronics equipment. This dedication to excellence is furthered by our extensive global network of agents and dealers.

Your current indicator is designed and constructed to meet the rigorous demands of the marine environment. However, no machine can perform its intended function unless installed, operated and maintained properly. Please carefully read and follow the recommended procedures for operation and maintenance.

Thank you for considering and purchasing FURUNO equipment.

Features

•

With heading data from a gyrocompass, satellite compass, etc., the absolute movements of tide measuring layers is displayed, in colors.

•

When ground (bottom) reference is not available acoustically; namely, ship is in deep water, this equipment provides absolute movements of measuring layers by receiving position (or speed) data from a GPS navigator and heading data from a gyrocompass or satellite compass.

•

Single-mold transducer plus compact monitor unit, control unit, transceiver unit and junction box (option) permit installation on small vessels.

•

Data is displayed on a bright, non-fading

10.4” TFT LCD. Background color is selectable from three colors.

•

Commercially available monitor may be used in lieu of the LCD monitor.

•

Logical keyboard layout and menu structure for intuitive operation. Function key provides shortcut menu operation.

•

Triple-beam system for automatic error compensation against pitching and rolling.

•

Echo level continuously displayed on the screen, for monitoring signal conditions on three sounding beams.

•

Bottom echo can be found using external depth data. Further, the bottom echo can be acquired manually by monitoring the echo level display. This is useful when in deep seas, air bubbles block reception of the bottom echo, or a thick layer of plankton or a large fish school is mistakenly tracked as the bottom echo.

•

Various alarms: tide, tide differential, speed, trip, etc. Audible and visual alerts are released if alarm condition is violated.

•

Six display modes to discern tide movement from a variety of angles.

•

Graph display shows past current data.

•

Water temperature graph helps locate current rip. (Temperature sensor required.)

Page 8

SYSTEM CONFIGURATION

MONITOR UNIT MU-100C

TRANSCEIVER UNIT CI-6810

CONTROL UNIT CI-6888

VGA Monitor

CONTROL UNIT CI-6888

NMEA1 Output

NMEA1 Input

NMEA2/CIF Output

NMEA2/CIF Input

Current Indicator Data

AUX (NMEA/CIF/Current Indicator Data/ Data for Display)

Heading Sensor

Alert/Alarm

Speed Log (2 lines)

KP Output

KP Input (Two lines)

Power ON/OFF Status (Contact signal)

100/110/115/200/ 220/230/240 VAC,

1, 50-60Hz

24 VDC

DC-AC INVERTER TR-2451

JUNCTION BOX CI-630

TRANSDUCER CI-620

System c onfiguration

: Standard Supply : Optional Supply

: Local Supply

Page 9

DISPLAY EXAMPLE

Object an d color

•

Tide of layer 1: Yellow

•

Tide of layer 2: Purple

•

Tide of layer 3: Light-blue

•

Own ship speed vector: Green

•

Heading line: White (dashed)

Tide vector display

vii

Page 10

Page 11

OPERATION AL OVERVIEW

1.1 Controls

CursorPadSetting Knob

FURUNO

CURRENT INDICATOR

LYR1

LYR2

LYR3

POWER

Control uni t

Control Function

POWER Turns power on or off.

F1 – F3 Function keys (menu shortcut keys)

LYR1 – LYR3 Set tide measuring depths for respective layers.

Setting Knob Sets measuring depth and range.

RANGE Sets range. The range which can be set depends on mode.

TRACK MODE Chooses tracking mode among ground, water (or nav) and auto.

DISP MODE Chooses a display mode.

BRILL Adjusts brilliance of LCD.

MENU Opens and closes the menu.

CursorPad • Chooses menu items and options.

• Increases or decreases numerical setting on menus and pop-up windows.

• Silences audible alarm.

- +

RANGE

TRACK

MODE

DISP

MODE

BRILL

1-1

Page 12

1. OPERATIONAL OVERVIEW

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 between the transceiver unit and the control unit and displays the results. After the diagnostic test is completed the last-used display appears.

CI-68 CI-6888

VOL.6651000-XX.XX MEM. 1 2 3 OK

CI-6810 VOL.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

DSW. - -

00 00 00 00 00 00

XX: Program Version No.

Diagnosti c test

Note: The example screens shown in this manual may not match the screens you see

on your display. The screen you see depends on your system configuration and equipment settings.

2. To turn the power off, press the [POWER] switch again.

Note: The NAV mode measures tides in deep waters where ground tracking is not available.

To use this function effectively, accurate heading data (from a gyrocompass, satellite compass) is necessary. For further details, see page AP-3.

1-2

Page 13

1. OPERATIONAL OVERVIEW

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.

BRILLIANCE

ggggggc

CURSOR PAD, [BRILL] KEY: CHANGE SETTING

Brillianc e adjustment window

Note: Execute the next step within five seconds after displaying the brilliance

adjustment window. Otherwise the window is erased.

2. Press ► or ▲ to raise the brilliance; ◄ or ▼ to lower it. The brilliance may also be adjusted by pressing the [BRILL] key. In this case, brilliance is adjusted cyclically: 0→1→…7→6…0→.

Note: You can adjust the backlighting for the control panel with PANEL DIMMER on the

MENU 1 menu.

1-3

Page 14

1. OPERATIONAL OVERVIEW

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 displ a y

The tide vector display mainly shows tide speed and direction for three layers with a vector.

Tide Average Setting

Heading Line

Tide of Layer 1 (Yellow)

Tracking Mode

Heading*

Speed, Course*

Depth Setting

Tide Speed

and Direction

(3 layers)

Mode Marker

Tide Differential

Tide of Layer 3 (Light-blue)

Tide of Layer 2 (Purple)

Tide Speed Range

Echo Level

Echo Display Range

Water Temperature*

Water Temperature Graph*

*: Sensor required.

1-4

Own Ship Vector (Green)

Tide vector display

Page 15

1. OPERATIONAL OVERVIEW

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.

Synthesized Speed Vector (Green)

Fore-Aft Speed History Graph

1.4.3 Graph display

Trip Distance

Port-Starboard Speed History Graph

Ship’s speed display

Ship Speed (Synthesized Speed)

Fore-Aft Speed

Own Ship Vector

Port-Starboard Speed

Drift Angle

The graph display plots water temperature and depth data in graph form.

Tide Graph (or Tide Diff or Ship Speed)

Water Temp. Graph*

Mode Marker

Depth Graph

Trip Distance

Text Window

*: Sensor required.

Marker

Graph display

1-5

Page 16

1. OPERATIONAL OVERVIEW

1.4.4 Course pl ot di splay

The course plot display plots ship’s track along with tide vectors.

Own Ship Position

Tide Vector

Ship’s Track

Text Window

Scale

DIV

Tide Display Interval

Course plot display

1.4.5 Text display

The text display provides various nav data in digital format.

Tracking Mode

Heading

Speed and Course

Mode Marker

Fore-Aft Speed

Position

North Mark

Port-Starboard Speed

Drift Angle

Tide Speed

and Direction

(3 layers)

1-6

Text display

*: Sensor required.

Tide Differential

Water Temperature*

Trip Distance

Page 17

1. OPERATIONAL OVERVIEW

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.

Tide Vector

Echo Level

Echo Display Range

Beam 3

Beam 2Beam 1

Echo level di s play

1-7

Page 18

1. OPERATIONAL OVERVIEW

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 setting

window.

SETTING DEPTH (LAYER1)

m (2-400)

KNOB OR CURSOR PAD: CHANGE SETTING

Depth setting window

2. Within five seconds after completing step 1, operate the Setting Knob or the CursorPad

to set depth of measurement. The setting range is 2-400 (meters).

Setting Knob: Rotate clockwise to raise the range; counterclockwise to lower the range.

CursorPad: Press ► or ▲ to raise the range; ► or ▼ to lower the range.

1-8

Page 19

1. OPERATIONAL OVERVIEW

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 movements relative to near-surface water and tide

differential between tide layers. (The pulse length in this mode must be NORMAL and depth greater than 40 m, or LONG pulse length and depth greater than 70 m.)

Nav: Ship’s movement as measured by a navigation device and tide

movements based on nav speed data.

Auto/external*: Uses ground tracking mode when bottom echo is available and switches

to water tracking mode (or Nav mode) when bottom echo is lost. The bottom echo is continuously sought, and if re-acquired the ground tracking mode is restored. *EXT appears in the tracking mode window (top left corner) when DEPTH MODE in the OTHER menu (sub menu in the installation menu) is set to EXTERNAL.

To choose the tracking mode, press the [TRACK MODE] key. The tracking mode changes according to the setting (OFF or ON) of NAV MODE in the MENU 1 menu. The current tracking mode appears at the top left-hand corner on the screen.

OFF: The tracking mode changes cyclically in the sequence of ground tracking, water

tracking and auto.

ON: The tracking mode changes cyclically in the sequence of ground tracking, nav and

auto.

Ship's movement based on ground

Tide movement of layer 1

Tide movement of layer 2

Tide movement of layer 3

Bottom

Ground Tracking Mode Water Tracking Mode

Dir

Layer 1

Speed Layer 2

Layer 3

Measuring

depth

Ship's movement relative to surface water

Tide movement of layer 1 relative to surface water

Tide movement of layer 2 relative to surface water

Tide movement of layer 3 relative to surface water

Tracki ng modes

Ship's movement measured by using satellites

Surface Layer (Reference layer)

Layer 1

Layer 2

Layer 3

(Based on ground)

Tide movement of layer 1

Tide movement

of layer 2 Tide movement of layer 3

Nav Mode

GPS Satellies

Layer 1

Layer 2

Layer 3

1-9

Page 20

1. OPERATIONAL OVERVIEW

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

1.0

kt (0.5-10.0)

KNOB OR CURSOR PAD: CHANGE SETTING

Range setting window ( example: range setting window for tide vect or display)

2. Within five seconds after completing step 1, operate the Setting Knob or the CursorPad to set the range.

Setting Knob: Rotate clockwise to raise the range; counterclockwise to lower the range. CursorPad: Press ► or ▲ to raise the range; ► or ▼ to lower the range.

Display and r ange to set

Display Range

Tide vector Tide speed range setting window appears. Set tide/tide differential range

(radius of vector display ring) appropriately.

Ship’s speed The ship’s speed range setting window shown depends on whether SCALE

SYNC in the DISP2 sub menu is set to ON or OFF.

ON: Port-starboard and fore-aft speeds are synchronized. The ship’s speed

range setting window appears. Set speed appropriately.

OFF: The ship’s speed range setting window appears. Set fore-aft speed

appropriately.

Graph The speed range setting window shown depends on the setting of MODE in

the DISP1 sub menu.

TIDE or TIDE DIF: The tide speed range setting window appears. Set tide

speed range (port-starboard of tide speed/tide differential graph) appropriately.

SPEED: The ship’s speed range setting window appears. Set ship’s speed

range (fore-aft of ship’s speed graph) appropriately.

Course plot The display scale setting window appears. Set display scale as appropriate.

Echo level

Tide speed range setting window appears. Set tide and tide differential range (radius of vector display ring) appropriately.

1-10

Page 21

INTERPRETING THE DISPLAYS

2.1 Tide Vector Display

Mode Marker

Tracking Mode

Heading*

Speed, Course*

Layer 1: Yellow

Layer 2: Purple

Layer 3: Light-blue

Tide differential

between reference

and deeper of

other two layers

Tide differential

between reference

and shallower of

other two layers

Text Window

Speed and direction of tide and tide differential

Tide Average Setting

Heading Line

Tide of Layer 1 (Yellow)

Tide of Layer 3 (Blue)

Tide of Layer 2 (Purple)

Own Ship Vector (Green)

Tide Speed Range

Echo Level

Electronic Bearing Scale*

Echo Display Range

Water Temperature*

Water Temperature Graph*

*: Sensor required.

Note: Missing or wrong

data is denoted with " --".

Tide vector display

2-1

Page 22

2. INTERPRETING THE DISPLAYS

Description of indic ations on tide v ec tor 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, scrolling from right to left. The color represents tracking mode as shown below.

Green: Ground tracking mode Blue: Water tracking mode, nav mode Background: Speed error

3 min

Current mode

Speed/course Speed made good and true course are shown. The displayable range is 0.0

to 40.0 kts for speed and 0° to 359° for course.

True course

Heading

(fed from

heading

sensor)

Speed made good (ground tracking speed, water tracking speed or nav speed)

2-2

Page 23

2. INTERPRETING THE DISPLAYS

Item Description

Tide speed and direction

Tide speed and direction is shown for three layers (measuring depths). The displayable range is 0.0 to 9.9 kts for speed and 0° to 359° for course. Data shown depends on the measuring mode as follows:

Ground tracking mode: Speed and direction values of measuring layers

represent movement of layer relative to ground.

Water tracking mode: Speed and direction values of measuring layers

represent movement of layer relative to near-surface water.

Nav mode: Speed and direction values represent movement of measuring

layers relative to pseudo ground.

Ship's movement based on ground

Tide movement of layer 1

Tide movement of layer 2

Tide movement of layer 3

Bottom

Dir

Layer 1

Speed Layer 2

Layer 3

Measuring

depth

Ship's movement relative to surface water.

Tide movement of layer 1 relative to surface water.

Tide movement of layer 2 relative to surface water.

Tide movement of layer 3 relative to surface water.

Surface Layer (Reference layer)

Layer 1

Layer 2

Layer 3

Ground Tracking Mode Water Tracking Mode

Ship's movement

GPS Satellies

measured by using satellites (Based on ground)

Tide movement of layer 1

Layer 1 Tide movement of layer 2

Layer 2

Tide movement of layer 3

Nav Mode

Layer 3

Tide differential Tide speed and direction differential are shown between reference layer and

shallower of the other two layers. The displayable range is 0.0 to 9.9 kts for speed and 0° to 359° for course. The reference layer may be selected with REF TIDE DIFF in the MENU 1 menu. For example, if the reference layer is layer 3, the tide differential between it and layer 1 and layer 2 will be displayed.

Water temperature Water temperature is shown if a water temperature sensor is connected to the

current indicator. The display range is -5 to 99 (°C).

Water temperature graph

Water temperature over the latest 15 minutes is displayed with a blue line, the data scrolling from right to left. The range of the temperature scale is 5°C and the range of the time scale is 15 minutes.

2-3

Page 24

2. INTERPRETING THE DISPLAYS

Item Description

Heading line

Tide/tide differential vector

The heading line is a dashed line which shows ship’s heading. It extends from ship’s position (center of vector display) to the edge of the vector display. The line can be turned on or off with HEADING LINE in the DISP1 menu.

Tide vectors may be turned on or off with LAYER 1, LAYER 2 and LAYER 3 in the DISP1 menu. The tide differential may be also be turned on or off with TIDE DIFF in the DISP1 menu. Note that if vectors overlap, the vector of the highest layer is shown.

Tide Vectors

(2)

(1)

(3)

(4)

Tide Differential Vectors

(5)

Heading Line

Yellow

Purple

Light-blue

Ship’s speed vector

Electronic bearing scale

(1) (2) (3)

(4) (5)

Layer 1

Layer 2

Layer 3

. . . .

2®1

. . . .

Yellow Purple Yellow

Purple

Purple Light-bluePurple Light-blue

Yellow

Purple

Light-blue

Reference Layer (Left half)

Purple

Yellow

Purple

Light-blue

Measuring Layer (Right half)

The ship’s speed vector may be shown on the vector display. This vector can be turned on or off with SHIP SPD VCTR in the DISP1 menu.

The electronic bearing scale shows bearing. If a heading sensor is connected the scale rotates with ship’s movement.

Tide speed range Tide speed range, as selected with TIDE RANGE in the DISP1 menu,

appears at the top right-hand side on the screen.

Tide average

The value set with TIDE AVERAGE in the MENU 1 menu is shown.

setting

Echo level The echo level display shows echo level for the three sounding beams in

colors or graph depending on the setting of DISP MODE in the DISP2 menu. You can turn the display on or off with ECHO LEVEL in the DISP2 menu.

Echo display range The value set with ECHO RANGE in the MENU 1 menu is shown.

2-4

Page 25

2.2 Ship’s Speed Display

2. INTERPRETING THE DISPLAYS

Fore-Aft Speed History Graph

Synthesized Speed Vector (Green)

Trip Distance

Ship Speed (Synthesized Speed)

Fore-Aft Speed

Own Ship Vector

Port-Starboard Speed

Drift Angle

Port-Starboard Speed History Graph

Ship’s speed display

Description of ship’s speed display indications

Item Description

Ship’s speed* (In GT, WT) or Water tracking speed (In Nav mode)

Fore-aft speed* Speed in the fore-aft direction. The speed setting range is 0.0 to 40.0 (kt).

Port-starboard speed*

Port-starboard and fore-aft speeds are synchronized when SCALE SYNC in the DISP2 menu is set to ON. The available speed setting range is 0.0 to 30.0 (kt). *: Speed measured depends on setting of SHIP SPD MODE in the DISP1 menu.

Ground tracking mode Water tracking mode Ref. layer selected Ship’s speed Ship’s speed Water tracking layer selected

Ground tracking speed Water tracking speed

Fore speed is denoted with a yellow “▲ ” above the speed readout and aft speed with a yellow “▼” below the speed readout.

Speed in the port-starboard direction. The speed setting range is 0.0 to 40.0 (kt). Port speed is denoted with a red “◄” to the left of the speed readout and starboard speed with a green “►” to the right of the speed readout.

Drift angle* The angle measured in degrees between ship’s heading and the actual

movement. When drift angle is to port, a red “◄” appears and when it is to starboard a green “►” appears. In the NAV mode, drift in water tracking speed is shown.

Trip Shows trip distance. The distance is referenced to fore or fore/aft depending

on the setting of LOG PULSE OUT in the I/O menu.

2-5

Page 26

2. INTERPRETING THE DISPLAYS

Description of ship’s speed display indicati ons ( c on’t from previous page)

Item Description

Own ship vector*

Fore-aft speed history graph This graph shows fore-aft speed history over time, which is useful

Port-starboard history graph This graph shows port-starboard speed history over time, which is

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 in the DISP2 menu is set to ON.

in trawling. HISTORY in the DISP2 menu sets the maximum range for the graph, and you can shift the range with HISTORY SHIFT in the DISP2 menu. The latest 60 seconds of fore-aft speed is shown, scrolling from right to left across the screen.

useful in trawling. DRIFT HISTORY in the DISP2 menu sets the maximum range for the graph. The latest 60 seconds of port-starboard speed is shown, scrolling from top to bottom on the screen.

*: Speed used for calculation depends on setting of SHIP SPD MODE in the DISP1 menu.

GT/WT: Speed is calculated according to tracking mode, ground speed for ground

tracking mode and water speed for water tracking mode.

WT: Speed is calculated using water tracking speed regardless of speed tracking

mode in use.

 



    

2-6

Page 27

2.3 Graph Display

2. INTERPRETING THE DISPLAYS

Text Window

0-6 hours of latest data

Depth of each layer

0-60 minutes of latest data

*: Sensor required.

Note: When overlapping occurs,

layer having highest number has priority.

Max. Range of Tide Speed (or Course)

Tide Graph (or Tide Diff or Ship Speed)

Water Temp. Graph*

Mode Marker

Depth Graph

Trip Distance Marker

Graph display

Description of graph display indicat ions

Item Description

Text window The text window may be turned on or off with TEXT WINDOW in

the DISP1 menu. When the text window is turned off, 12 hours of graph data are shown.

Tide (or tide differential, speed) graph

You may choose the type of graph to display with MODE in the DISP1 menu. The maximum tide speed (or ship’s speed) range may be chosen with TIDE RANGE in the DISP1 menu.

Tide direction (or course) may be chosen with TIDE GRAPH in the DISP1 menu. For the tide graph, graph lines are displayed in colors: Layer 1, Yellow; Layer 2, Purple, and Layer 3, Light-blue. For the tide differential graph, the tide differential between layers 1 and 2 is shown in purple and that between layers 1 and 3 in light-blue.

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2. INTERPRETING THE DISPLAYS

Description of graph display indicat ions (con’ t from previous p age)

Item Description

Water temperature graph The water temperature graph may be turned on or off with TEMP

GRAPH in the DISP1 menu.

Mode marker The mode marker shows by color which tracking mode is in use.

Green: Ground tracking mode Blue: Water tracking mode, nav mode Background:

Depth graph The depth graph displays depth data in graph form. If, in the water

tracking mode, the depth is greater than the depth range no depth data is displayed. To graph depth from an external source, set DEPTH SOURCE in the OTHER menu (sub menu in the installation menu) to EXTERNAL.

Ship’s speed error

Trip distance marker

The trip distance marker shows trip distance in one-mile increments, in green and background color alternately as shown below.

1 mile

GreenBackground

color

 

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Page 29

2.4 Course Plot Display

2. INTERPRETING THE DISPLAYS

Own Ship Position

Tide Vector

Ship’s Track

North Mark

: Sensor required.

Text Window

Scale

DIV

Tide Display Interval

Position*

Course plot display

Description of course plot display indications

Item Description

Text window The text window can be turned on or off with TEXT WINDOW in the

DISP2 menu. With the text window turned off, the amount of track displayed is greater.

Ship’s track Ship’s track is drawn with a white solid line. Ship’s track starts

extending from the screen center and when own ship position reaches the edge of the screen it is brought back to the screen center. You may turn the ship’s track line on or off with SHIP TRACK in the DISP2 menu.

Tide vector

The length of the tide vectors may be chosen with VECTOR LENGTH in the DISP2 menu. Vectors may be turned on or off with LAYER 1 – LAYER 3 in the DISP1 menu.

North mark The north mark points upward on the course plot display.

Scale You may choose the scale with SCALE in the DISP2 menu.

DIV Shows range per scale division.

Tide display interval You may choose the tide display interval with INTERVAL in the

DISP2 menu. In the illustration above the interval is “2”.

Position Position is shown in latitude and longitude.

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2. INTERPRETING THE DISPLAYS

2.5 Echo Level Display

Tide Vector

Echo Level

Echo Display Range

Item Description

Echo level

Echo display range

Beam 3

Beam 2Beam 1

Echo level di s play

Description of echo level display indications

Echo status of beam 1 (fore), beam 2 (starboard) and beam 3 (port) is displayed in eight colors.

The echo display range can be set with ECHO RANGE in the MENU 1 menu.

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Page 31

2. INTERPRETING THE DISPLAYS

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)

(1) No data input from transceiver unit

SPD/CSE kt

12.3 333

(2) Ship’s speed error

Tide vector, speed, graph and

course plot displays

SPEED FORE-AFT

12.0

SPEED PORT-STBD

(2) Ship’s speed

2.7

DRIFT ANGLE

error

(1) No data input from transceiver unit

SPD/CSE

12.3 333

(2) Ship’s speed error

Text and echo level displays

GT SPEED kt

DRIFT kt

2.7

12.0

DIR

(2) Ship’s speed error

Ship’s speed display Text display

Speed and cour s e er ror displays

(1) No data is being input from the transceiver unit to the display unit. If this occurs, contact

a FURUNO agent or dealer.

(2) This display appears when the ground tracking echo for ground tracking, reference layer

for water tracking or GPS data from the GPS navigator is abnormal. In this case data is not reliable.



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Page 32

2. INTERPRETING THE DISPLAYS

Tide fo r t hree layers/ti de differential

(4) Depth setting error

TIDE SPD/VECTOR kt

2.3 140

(3) Echo from measuring layer is abnormal

Tide vector, speed, graph and

course plot displays

TIDE DIFF kt

1®2

2.3 140

3) Echo from measuring layer is abnormal

Tide vector, speed, graph and

course plot displays

(4) Depth setting error

TIDE SPD/VECTOR

2.3 140

(3) Echo from measuring layer is abnormal

Text and echo level displays

TIDE DIFF

1®2

2.3 140

3) Echo from measuring layer is abnormal

Text and echo level displays

Tide and tide diff er ential error dis play s

(3) Displayed when echo for a measuring layer is not present. The readout for the offending

measuring layer is not reliable.

(4) Displayed when the depth setting for a measuring layer is improper. The readout for the

offending measuring layer is not reliable.

Improper depth setting conditions

•

Depth in ground tracking mode is less than 10 m.

•

Depth setting is more than 75% of actual depth.

•

Echo cannot be obtained because of air bubbles, etc.

•

Echo for set depth cannot be found because depth has become deeper than set depth.

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Page 33

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.

CUSTOMIZING THE SYSTEM

3.1 Menu Operation

1. Press the [MENU] key to open the menu. The last-used menu appears.

MAIN menu title

MENU 1 MENU 2 ALARM INSTALLATION

SUB menu title

MODE DISP1 DISP2

TIDE VECTOR : OFF ON

SHIP SPEED : OFF ON

GRAPH : OFF ON

COURSE PLOT : OFF ON

TEXT : OFF ON

ECHO LEVEL : OFF ON

BACKGROUND CLR : BLACK WHITE BLUE

Help

2. Press ▲ to place the cursor on the main menu title field.

MENU ON DISPLAY SETTINGS.

[p/q]:SELECT, [t/u]: CHANGE, [MENU]: EXIT

MODE menu

3-1

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3. CUSTOMIZING THE SYSTEM

3. Press ◄ or ► to choose the main menu desired among MENU 1, MENU 2, ALARM and INSTALLATION menus. Then, the menu changes according to your selection. For the MENU 2 and INSTALLATION menus the sub menu title appears. To choose a sub menu, press ▼ to choose the sub menu title field and then press ◄ or ► to choose the sub menu desired.

Note: The INSTALLATION menu is locked to prevent unintentional adjustment of its

settings. When you move the cursor from ALARM to INSTALLATION, the following message appears. To open the INSTALLATION menu, press any function key.

PRESS ANY FUNC KEY TO OPEN INSTALLATION MENU. PRESS [MENU] KEY TO OPEN ALARM MENU.

4. Press ▲ or ▼ to choose menu item desired. Selected item is displayed in reverse video and menu help appears in the box at the bottom of the menu.

5. Press ◄ or ► to choose menu option or change numerical value. To change numerical value, press ► to raise the value; ◄ to lower the value.

6. Press the [MENU] key to close the menu.

3-2

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3. CUSTOMIZING THE SYSTEM

3.2 Function Keys

3.2.1 Programmi ng th e fu nc tio n 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 cannot be used.

3. Choose menu item desired.

Note: RESET TRIP LOG, TEST and BOTTOM SEARCH in the MENU 1 cannot be

used.

4. Press and hold down a function key until you hear three beeps and the message

“PROGRAMMED SELECTED ITEM TO [F*] KEY” is displayed (about five seconds). (* Function key number pressed.)

5. Press the [MENU] key to close the menu.

3.2.2 Using the functio n keys

The function keys provide shortcut menu operation, and they are not programmed at the factory. If a function key contains no program when pressed, the message “NO FUNCTION ASSIGNED TO [F*] KEY.” appears on the display for about five seconds. (* function key pressed.)

1. Press any function key. An appropriate setting window appears on the display.

2. Within five seconds after completing step 1, operate the CursorPad to change setting as below. Change numeric data: ► or ▲ to raise the setting; ◄ or ▼ to lower it. Choose option: ► or ▲ to scroll rightward; ◄ or ▼ to scroll leftward.



3-3

Page 36

3. CUSTOMIZING THE SYSTEM

3.3 MENU 1 Menu

This menu mainly provides items for adjustment of tide parameters.

MENU 1 MENU 2 ALARM INSTALLATION

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 TRACK : OFF ON

ALM/KEY BEEP : OFF ON

WT SPD DEPTH : 2 m (2-400m)

RESET TRIP LOG : NO YES

TEST : NO GENERAL PANEL PATTERN

ECHO RANGE : 150 m

TVG : OFF ON

GAIN : 5 (1-40)

PANEL DIMMER : 5 (0-7)

MENU ON INITIAL SETTINGS.

[p/q]:SELECT, [t/u]: CHANGE, [MENU]: EXIT

MENU 1 m enu

SHIP SPEED AVG

Choose the averaging time for the ship’s speed display. The choices are 15, 30, 60 and 90 seconds.

TIDE AVERAGE

Choose the averaging time for the tide display. If tide speed appears to be too slow, choose a higher setting. The choices are 15 s, and 1, 2, 3, 5, 10 and 20 minutes.

REF TIDE DIFF

Choose the reference layer for tide differential measurements, among layer 1, layer 2 and layer 3.

BEARING M ODE

You may show bearing in 32 compass points or 360 degrees.

NAV MODE

NAV MODE enables or disables the NAV mode. Choose ON to use NAV mode instead of the water tracking mode. For further details, see paragraph 1.6.

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3. CUSTOMZING THE SYSTEM

BOTT OM 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:

1. Set BOTTOM SEARCH to YES and close the menu. The rectangle cursor appears on

the display.

2. Press any function key. The tide vector display appears along with the echo level

display.

3. Use ▲ or ▼ to set the cursor on the bottom echo.

Bottom Echo

125

Depth

Cursor

How to acq uire bottom echo

4. Press the [MENU] key to finish and close the menu.

BTM TIDE TRACK

Choose how to track bottom tide, in the ground tracking mode.

ON: Measuring depth of layer 3 changes automatically with the bottom depth to track on

near-bottom tide. In this case the layer 3 indications shows “BTTM” instead of the tide measurement depth.

OFF: Normal selection of measuring depth for layer 3.

ALM/KEY BEEP

A key beeps to confirm correct key input, input error or error message. You may turn this beep on or off as desired. The beep sounds when an alarm setting is violated regardless of whether this item is turned on or off.

WT SPD DEPTH

Set the reference depth at which to measure ship’s speed in the water tracking mode. Set the depth for which you want to know the water tracking speed in reference to a specific depth. The setting range is 2-400 (m).

RESET TRIP LOG

Set the trip distance to zero (0). Choose YES and then you are prompted “ PRESS ANY FUNCTION KEY TO EXECUTE.” Press any function key to reset the trip log to zero.

TEST

Choose the diagnostic test to execute: General (program no. display, memory check, etc.), panel or pattern. For further details, see paragraph 4.4.

3-5

Page 38

3. CUSTOMIZING THE SYSTEM

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 not adjust the gain of the received signal; speed and tide values are not affected by this adjustment. The setting range is 1-40.

PANEL DIMMER

Adjust the backlighting for the control panel, from 0-7.

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Page 39

3. CUSTOMZING THE SYSTEM

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.

MENU 1 MENU 2 ALARM INSTALLATION

MODE DISP1 DISP2

TIDE VECTOR : OFF ON

SHIP SPEED : OFF ON

GRAPH : OFF ON

COURSE PLOT : OFF ON

TEXT : OFF ON

ECHO LEVEL : OFF ON

BACKGROUND CLR : BLACK WHITE BLUE

MENU ON DISPLAY SETTINGS.

[p/q]:SELECT, [t/u]: CHANGE, [MENU]: EXIT

DISP menu

TIDE VECTOR

Enable or disable the tide vector display.

SHIP SPEED

Enable or disable the ship’s speed display.

GRAPH

Enable or disable the tide graph display.

COURSE PLO T

Enable or disable the course plot display.

TEXT

Enable or disable the text display.

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3. CUSTOMIZING THE SYSTEM

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

MENU 1 MENU 2 ALARM INSTALLATION

MODE DISP1 DISP2

COMMON SETTINGS

TIDE RANGE : 3.0kt

SHIP SPD VCTR : OFF ON

HEADING LINE : OFF ON

TIDE VECTOR

LAYER 1 : OFF ON

LAYER 2 : OFF ON

LAYER 3 : OFF ON

TIDE DIFF : OFF ON

DISPLAY MODE : HEAD UP NORTH UP

SHIP SPD MODE : GT/WT WT

GRAPH

MODE : TIDE TIDE DIF SHIP SPD

Graph display

settings

TIDE GRAPH : NORTH SOUTH

TEMP GRAPH : OFF ON

TEXT WINDOW : OFF ON

MENU ON DISPLAY SETTINGS.

[p/q]:SELECT, [t/u]: CHANGE, [MENU]: EXIT

DISP1 menu

TIDE RANGE

Set the tide range for the tide vector display, graph display and echo level display. The choices are 0.5, 1.0, 2.0, 3.0, 5.0 and 10.0 (kts).

SHIP SPD VCTR

Turn the ship’s speed vector on or off on the tide vector display and echo level display.

HEADING LINE

Turn the heading line on or off on the tide vector display and echo level display.

LAYER 1, LAYER 2, LAYER 3, TIDE DIFF

Turn the tide vector on or off for the respective item on the tide vector display and echo level display.

3-8

Page 41

3. CUSTOMZING THE SYSTEM

DISPLAY MODE

Set display orientation for head-up or north-up. Heading device required for North-up.

Ship’s bow is at the top of the screen.

HEADING LINE

Head-up North-up

North is at the top of the screen.

Head-up and north-up display modes

SHIP SPD MODE

Choose the tracking mode to use to display drift angle, fore-aft speed and port-starboard speed on the ship’s speed and text displays.

MODE

Choose the item to show on the graph display, among tide, tide differential and ship’s speed.

TIDE GRAPH

Choose how to draw the tide on the graph display. The choices are NORTH (N, E, S, W) and SOUTH (S, W, N, E). Normally, use NORTH. When the graph becomes difficult to read switch to SOUTH.

TEMP GRAPH

Turn the water temperature graph on the graph display on or off.

TEXT WINDOW

Turn the text window on the graph display on or off.

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Page 42

3. CUSTOMIZING THE SYSTEM

3.4.3 DISP2 menu

MENU 1 MENU 2 ALARM INSTALLATION

MODE DISP1 DISP2

TIDE VECTOR

Tide vector

display settings

Ship’s speed

display settings

Tide differential

display settings

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 1:50000 1:100000

INTERVAL : 2.0

SHIP TRACK : OFF ON

VECTOR LENGTH : LONG SHORT

TEXT WINDOW : OFF ON

MENU ON DISPLAY SETTINGS.

[p/q]:SELECT, [t/u]: CHANGE, [MENU]: QUIT

DISP2 menu

ECHO LEVEL

Turn the echo level display on or off on the tide vector display.

DISP MODE

Choose how to show the echo level display. SOUNDER: Echo strength shown in eight colors. GRAPH: Echo strength shown by graph.

Beam 1

Beam 3

0 m

Beam 2

Layer 1 depth value: Yellow Layer 2 depth value: Purple

Layer 1 depth value: Light-blue

Echo strength

0 m

Depth

TX pulse

Echo level: Beam 1: Yellow Beam 2: Purple Beam 3: Light-blue

200 m

COLOR GRADATION

(Color sounder)

3-10

Bottom echo

Echo display range

200 m

AMPLITUDE GRAPH

(A-scope)

Echo level di s plays

Bottom echo

Page 43

3. CUSTOMZING THE SYSTEM

SCALE SYNC

Choose whether to interlock port-starboard speed range with fore-aft speed range or not.

DRIFT S CALE

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 time, however you must turn off SCALE SYNC

in the DISP2 menu for it to become active.

SCALE

Set the range of fore-aft speed and on the ship’s speed display. The choices are 0.5, 1.0,

2.0, 3.0, 5.0, 10.0, 20.0 and 30.0 (kt). Port-starboard speed range is also set.

Note: You may adjust SCALE at any time, however you must turn on SCALE SYNC in the

DISP2 menu for it to become active.

DRIFT HISTORY

Set the range for the port-starboard speed history graph. The choices are 0.5, 1 and 2 (kt).

HISTORY

Set the range for the fore-aft speed history graph. The choices are 4, 8, 16 and 32 (kt).

HISTORY SHIFT

Set the amount of shift for the fore-aft speed history graph among –2, -1, 0, 1, 2, 4 and 8 (kt).

SCALE

Choose the scale to use in the course plot display, from among 1:10000, 1:20000, 1:50000 and 1:100000.

INTERVAL

Choose the display interval for the tide vector in the course plot display. The choices are 0.5,

1.0, 1.5, 2.0, 2.5, 3.0, 3.5 and 4.0. The figures are scale on course plot display.

SHIP TRACK

Turn own ship’s track display on or off.

VECTO R LENGTH

Choose the vector length from LONG or SHORT. For LONG 1 mm in length is equal to 0.1 knot.

TEXT WINDOW

Turn the text window on the course plot display on or off.

3-1 1

Page 44

3. CUSTOMIZING THE SYSTEM

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 alarm, press the CursorPad. The alarm message remains on the screen until the cause for the corresponding alarm is eliminated or the alarm is disabled. When the alarm is again violated, the alarm message appears and the audible alarm is released.

The audible alarm and alarm message may be enabled or disabled independently. Alarm messages appear in paragraph 4.5.

Note: Alarm priority is in the order the alarms appear on the ALARM menu; highest priority

is layer 1 and lowest priority is the trip alarm. When multiple alarms are violated, the audible and visual alarms are given to the alarm having the highest priority.

3.5.1 Alarm types

LAYER 1, LAYER 2, L AYER 3

Tide speed and direction alarms for respective tide layers.

SHALLOW T/D, DEEP T/D

SHALLOW T/D: Sets the tide difference between the base layer and the shallower of the

other two layers.

DEEP T/D: Sets the tide difference between the base layer and the deeper of the

other two layers.

Reference Layer Shallow TD Deep TD 1 1 → 2 1 → 3 2 2 → 1 2 → 3 3 3 → 1 3 → 2

SHIP SPEED

Sets speed and course for speed alarm.

TRIP

Sets distance and time for trip alarm.



3-12

Page 45

3. CUSTOMZING THE SYSTEM

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 direction alarm for 350°-10°.

Setting t ide speed, tide d irection, tide differential and ship’s speed alarms

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.

MENU 1 MENU 2 ALARM INSTALLATION

DISP2

LAYER 1 : SPD

: DIR

LAYER 2 : SPD

: DIR

LAYER 3 : SPD

: DIR

SHALLOW T/D : SPD

: DIR

DEEP T/D : SPD

: DIR

SHIP SPEED : SPD

: CSE

TRIP : DIST

: TIME

MENU ON ALARM SETTINGS.

[p/q]:SELECT, [t/u]: CHANGE, [MENU]: EXIT

ALARM menu

Alarm status is shown with the speaker icons.

: Alarm ON (Audible alarm and alarm message: ON)

: Alarm OFF (Audible alarm: OFF, Alarm message: ON)

4. Use ▲ or ▼ to choose LAYER1-SPD.

5. Press ► to open the alarm setting window.



3-13

Page 46

3. CUSTOMIZING THE SYSTEM

Tide speed range value Alarm being set

Present tide data for layer 1

3.0kt SPD LAYER1

Cursor pad

Alarm

p

KEY MAX

t u

KEY MIN

STAT US

0.0kt 0

TIDE MIN 0.0kt MAX 0.0kt

settings

DIRECTION MIN 0 MAX 0

QUIT ANY FUNC KEY

° °

Alarm set ting screen (tide, ship’s speed)

6. Use ◄ or ► to set minimum speed; ▲ or ▼ to set maximum speed. As you operate an “arrow,” the radius of the inner or outer circle is increased or decreased accordingly. Your screen should now look something like the one shown below.

p

KEY MAX

t u

KEY MIN

STATUS

0.0kt 0

3.0kt DIR LAYER1

Tide

TIDE MIN 1.0kt MAX 2.0kt

DIRECTION MIN 0 MAX 0

QUIT ANY FUNC KEY

° °

speed alarm

setting

Alarm set ting screen (tide speed set)

7. Press any function key to return to the ALARM menu.

appears to the right of SPD.

8. Press ▼ to choose DIR at LAYER 1.

9. Press ► to open the setting window.

10. Use ◄ or ► to set starting point; ▲ or ▼ to set ending point. For example, set the starting point at 350° and the ending point at 10°. Then, the screen should look something like the one at the top of the next page.

3-14

Page 47

Starting point

3. CUSTOMZING THE SYSTEM

p

KEY MAX

t u

KEY MIN

STATUS

0.0kt 0

3.0kt DIR LAYER1

Ending point

Tide direction alarm setting

Tide speed

TIDE MIN 1.0kt MAX 2.0kt

DIRECTION MIN 350 MAX 10

QUIT ANY FUNC KEY

alarm setting

Alarm set ting screen (tide)

11. Press any function key to return to the ALARM menu. “

” appears to the right of DIR in LAYER 1. When the alarm setting is violated, the audible alarm sounds and an alarm message appears.

12. Press the [MENU] key to close the menu.

3.5.3 Setting the trip alarm

Trip dist ance alarm

The trip distance alarm sounds when the vessel has traveled more than the preset distance.

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-DIST.

5. Press ► to show the trip distance setting screen.

**TRIP ALARM**

TRIP DIST : 0.0 nm ANY FUNC KEY: QUIT

KEY: SET

Dist anc e trip alarm s etting screen

6. Press ◄ or ► to set distance.

7. Press any function key to quit and return to the ALARM menu. “

” appears to the right of TRIP-DIST. When the vessel has traveled more than the preset distance, the audible alarm sounds and an alarm message appears.

8. Press the [MENU] key to close the menu.

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Page 48

3. CUSTOMIZING THE SYSTEM

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 the trip time alarm setting screen.

**TRIP ALARM**

TRIP TIME : 0hr

: 0 min : 0 sec ANY FUNC KEY: QUIT

KEY: SELECT

KEY: SET

p

Tim e trip alarm setting screen

6. Press ▲ or ▼ to choose item to set.

7. Press ◄ or ► to set.

8. Press any function key to quit and return to the ALARM menu. “

” appears to the right of TRIP-DIST. When the alarm setting is violated the audible alarm sounds and an alarm message appears.

9. Press the [MENU] key to close the menu.

3.5.4 Disabling/enabling the audible alarm

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 the alarm you want to process. (An alarm where

appears.

5. Press ◄ or ► to show

or as appropriate.

6. Press the [MENU] key to close the menu.

3.5.5 Disabling an alarm

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 the alarm you want to disable.

5. Press any function key, and the following window appears.

AREA IS ALREADY SET SET:

ARE YOU SURE TO RESET? : NO YES

PRESS ANY FUNCTION KEY AFTER SETTING.

6. Press ► to choose YES.

7. Press any function key to return to the ALARM menu. The or is removed.

8. Press the [MENU] key to close the menu.



3-16

Page 49

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 maintenance or troubleshooting procedure, please review the safety information below.

MAINTENANCE &

TROUBLESHOOTING

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel should work inside the equipment.

4.1 Routine Maintenance

General checks

Check the following monthly.

•

Check all cabling. If damaged, replace.

•

Check connectors on each unit for tight connection. Retighten if necessary.

•

Check the ground on each unit. If rusted or dirty, clean.

•

Measure the input voltage to be sure it is within the rated voltage.

Cleaning

Dust or dirt should be removed from exterior surfaces with a soft, dry cloth. For cleaning the LCD, wipe it carefully to prevent scratching, using tissue paper and an LCD cleaner. To remove stubborn dirt, use an LCD cleaner, wiping slowly with tissue paper so as to dissolve the dirt. Change paper frequently so the dirt will not scratch the LCD. Do not use chemical-based cleaners to clean the monitor unit – they can remove paint and markings.

Transducer

•

Check the zinc plate attached to the transducer for corrosion regularly and replace it if it is corroded. It should be replaced when the ship is drydocked. If the plate is not replaced, corrosion may occur. This may allow the transducer to fall out from the hull, allowing water to leak inside the vessel.

•

Do not paint the transducer face.

•

When the vessel is drydocked, remove marine growth from the transducer. Marine life adhering to the transducer may cause a considerable drop in performance.

4-1

Page 50

4. MAINTENANCE & TROUBLESHOOTING

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 dealer for advice. All fuses are located inside the units. Therefore, have a suitably qualified technician replace the fuses.

WARNING

Use the proper fuse.

Use of a wrong fuse can result in damage to the equipment or cause fire.

Unit Type Code No.

Monitor Unit FGMB 3A 125V 000-104-909

Control Unit FGMB 2A 125V 000-103-165

Transceiver Unit (100 VAC spec.)

Transceiver Unit (200 VAC spec.)

FGBO 3A AC250V 000-549-021

FGBO 5A AC250V 000-549-022

FGBO 3A AC250V 000-549-021

4-2

Page 51

4. MAINTENANCE & TROUBLESHOOTING

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 technician.

Troubleshooting table

If…

nothing appears on the screen when the power switch is pressed

ship’s track is not displayed • turn on SHIP TRACK in the DISP2 menu.

bottom echo is not shown on the echo level display

echo display is interrupted • suspect poor measuring conditions.

tide data is unstable • adjust tide average on the MENU 1 menu. interference is present • check ground for corrosion.

• check that the power cable is firmly connected.

• The fuse may have blown. Request replacement of

the fuse.

• adjust brilliance.

• check if the setting of ECHO RANGE in the MENU 1

menu is too low.

• bottom is deeper than measuring range.

• check setting of GAIN in the MENU1 menu.

• bottom is covered with sludge or the like.

• marine life may be adhering to the transducer.

• check if the cables of other equipment are near the

transducer cable.

Then…

4-3

Page 52

4. MAINTENANCE & TROUBLESHOOTING

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 cursor on the main menu title field.

3. Press ◄ to choose MENU 1.

MENU 1 MENU 2 ALARM INSTALLATION

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 TRACK : OFF ON

ALM/KEY BEEP : OFF ON

WT SPD DEPTH : 2 m (2-400m)

RESET TRIP LOG : NO YES

TEST : NO GENERAL PANEL PATTERN

ECHO RANGE : 150 m

TVG : OFF ON

GAIN : 5 (1-40)

PANEL DIMMER : 5 (0-7)

MENU ON INITIAL SETTINGS.

[p/q]:SELECT, [t/u]: CHANGE, [MENU]: EXIT

MENU 1 m enu

4. Press ▲ or ▼ to choose TEST.

5. Press ► to choose GENERAL.

6. Press any function key to start the test. The results of the test are shown on the screen as in the figure on the next page.

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Page 53

4. MAINTENANCE & TROUBLESHOOTING

TVG ON/OFF (Use t or u to apply or remove TVG from echo display, respectively.)

Model

Control Unit Test

Transceiver Unit Test

CI-68

CI-6888 VOL. 6651000-XX.XX MEM. 1 2 3 OK SIO. OK

CI-6810 VOL. TBL. MEM. 1 2 3 4 5 6 7 8 OK ANA. 12V;12.03V BV;110.0V

TRM. +25.02 DSW. 00 00 00 00 DSW. -- 00 00 00

PRESS [MENU] KEY TO QUIT.

XX: Program Version No.

6651001

-XX.XX

NL -8, -2, -5 TVG ON OFF

Beam 3 Beam 1 Beam 2 (Port) (Fore) (Starboard)

Echo display for three beams

Diagnosti c test result s

Description of control unit test results VOL: Program version no. of the OCK Board (66P3927) MEM: Check of 1: ROM, 2: SRAM and 3: EEPROM SIO: OK if normal; NG if abnormal.

Description of transceiver unit test results VOL: Program version no. of the PCP Board (66P3920) MEM: Checks memory ICs on the PCP Board. If all memory ICs are functioning

properly, “OK” appears. “NG” (No Good) appears when an IC is abnormal and

an asterisk is placed to the right of the abnormal IC. ANA: Displays voltage of 12 V and +B lines. TRM: Displays temperature inside transducer. DSW: Displays PCP DIP switch settings. DSW: Displays PCN DIP switch settings.

Noise Level of Beam 1, Beam 2 and Beam 3

7. To quit the test, press the [MENU] key to return to the MENU 1 menu.

8. Press the [MENU] key again to close the menu.

4-5

Page 54

4. MAINTENANCE & TROUBLESHOOTING

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 display.

PRESS [MENU] KEY TO QUIT.

Panel test

3. Press each key (except [MENU] and [POWER]) one by one. A key’s on-screen location should show “1” when the key is pressed and “0” when the key is released.

4. Operate the setting knob. The setting knob’s on-screen indication should show appropriate setting value when the knob is operated.

5. To quit the test, press the [MENU] key to return to the MENU 1 menu.

6. Press the [MENU] key again to close the menu.

4-6

Page 55

4. MAINTENANCE & TROUBLESHOOTING

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.

16 tones of red 16 tones of green 16 tones of blue White Red

Test Pattern Black Blue Green

Test pattern

3. Press ► to change the picture in the sequence shown above. You may reverse the order by pressing ◄.

Note: You may adjust the brilliance of the FURUNO-supplied monitor by operating the

[BRILL] key.

4. To quit the test, press the [MENU] key to return to the MENU 1 menu.

5. Press the [MENU] key again to close the menu.

4-7

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4. MAINTENANCE & TROUBLESHOOTING

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 case of control unit-related alarm. In case of multiple errors, the error or alert having the highest priority is displayed. The table below shows all the error messages and alerts which may appear, in order of priority, from highest to lowest.

Error mes s ages and alerts

Error Message or Alert Meaning

Error Message (from transceiver unit)

WARNING! OVERHEATED TRANSDUCER [001] Overheated transducer

WARNING! ABNORMAL TX VOLTAGE [002] Abnormal Tx voltage

WARNING! CHARGING ERROR (+B) [003] Abnormal +B voltage

WARNING! ABNORMAL INPUT 12V [009] Abnormal Input voltage (12 V)

WARNING! NO POSITION DATA [100] External position data is missing

WARNING! NO SPEED DATA [101] External speed data is missing

WARNING! NO DEPTH DATA [103] External depth data is missing

WARNING! NO HEADING DATA [104] Position data is missing

WARNING! ABNORMAL COURSE DATA [105] Abnormal course error angle

WARNING! NO TEMPERATURE DATA [106] Water temperature data is missing

WARNING! ABNORMAL TEMP INPUT [201] Abnormal water temperature sensor

Alert (from control unit)

WARNING! LAYER 1 TIDE SPEED Layer 1 speed alarm has been violated.

WARNING! LAYER 1 TIDE DIRECTION Layer 1 tide direction alarm has been violated.

WARNING! LAYER 2 TIDE SPEED Layer 1 speed alarm has been violated.

WARNING! LAYER 2 TIDE DIRECTION Layer 1 tide direction alarm has been violated.

WARNING! LAYER 3 TIDE SPEED Layer 1 speed alarm has been violated.

WARNING! LAYER 3 TIDE DIRECTION Layer 1 tide direction alarm has been violated.

WARNING! SHALLOWER TIDE DIFF SPD Shallow tide differential tide speed alarm has

been violated.

WARNING! SHALLOWER TIDE DIFF DIR Shallow tide differential tide direction alarm has

been violated.

WARNING! DEEPER TIDE DIFF SPD Deep tide differential tide speed alarm has

been violated.

WARNING! DEEPER TIDE DIFF DIR Deep tide differential tide direction alarm has

been violated.

WARNING! SHIP SPEED Speed alarm has been violated.

WARNING! SHIP COURSE Course alarm has been violated.

WARNING! TRIP DISTANCE Trip distance alarm has been violated.

WARNING! TRIP TIME Trip time alarm has been violated.

4-8

Page 57

APPENDIX

MENU TREE

Default settings shown in bold italic.

key

MENU 1

MENU 2 MODE

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 SEARCH (NO, YES) BTM TIDE TRACK (OFF, ON) ALM/KEY BEEP (OFF, ON) WT SPD DEPTH (2-400 (m)) RESET TRIP LOG (NO, YES) TEST (NO, GENERAL, PANEL, PATTERN) ECHO RANGE 400 m, 450 m, 500 m) TVG (OFF, ON) GAIN (1-40, 5) PANEL DIMMER (0-7, 5)

(50 m, 100 m, 150 m, 200 m, 250 m, 300 m 350 m,

TIDE VECTOR (OFF, ON) SHIP SPEED (OFF, ON) GRAPH (OFF, ON) COURSE PLOT (OFF, ON) TEXT (OFF, ON) ECHO LEVEL (OFF, ON) BACKGROUND CLR (BLACK, WHITE, BLUE)

DISP1

(Continued on next page)

COMMON SETTINGS

TIDE RANGE (0.5 kt, 1.0 kt, 2.0 3.0 kt, 5.0 kt, 10.0 kt) SHIP SPD VCTR (OFF, ON) HEADING LINE (OFF, ON) TIDE VECTOR

DISPLAY MODE (HEAD UP, NORTH UP) SHIP SPD MODE (GT/WT, WT)

GRAPH

MODE (TIDE, TIDE DIF, SHIP SPD) TIDE GRAPH (NORTH, SOUTH) TEMP GRAPH (OFF, ON) TEXT WINDOW (OFF, ON)

LAYER 1 (OFF, ON) LAYER 2 (OFF, ON) LAYER 3 (OFF, ON) TIDE DIFF (OFF, ON)

P-1

Page 58

MENU TREE

(Continued from previous page)

ALARM

DISP2

LAYER 1

LAYER 2

LAYER 3

SHALLOW T/D DEEP T/D SHIP SPEED TRIP

TIDE VECTOR SHIP SPEED

COURSE PLOT

ECHO LEVEL (OFF, ON) DISP MODE (SOUNDER, GRAPH) SCALE SYNC (OFF, ON) DRIFT SCALE* (0.5, 1.0, 2.0, 3.0, 5.0, 10.0 (kt)) SCALE (0.5, 1.0, 2.0, 3.0, 5.0, 10.0, 20.0, 30.0 (kt)) DRIFT HISTORY (0.5 kt, 1 kt, 2 kt) HISTORY (4 kt, 8 kt, 16 kt, 32 kt) HISTORY SHIFT (-2, -1, 0, 1, 2, 4, 8 (kt))

SCALE (1:10000, 1:20000, 1:50000, 1:100000) INTERVAL (0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0) SHIP TRACK (OFF, ON) VECTOR LENGTH (LONG, SHORT) TEXT WINDOW (OFF, ON)

* Shown when

SPD DIR

SPD DIR SPD DIR SPD DIR SPD DIR

SPD CSE DIST (0-30 (nm)) TIME (0-23:59:59 (h:m:s))

SCALE SYNC is off.

SPD (0-speed range setting) DIR, CSE (0-359 (°))

AP-2

Page 59

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 reliable measurements, however, you must feed accurate heading (gyro) data and ship’s position (or speed and course) data to the current indicator.

Procedure

1. Confirm that the gyro has settled and all necessary compensations (latitude

compensation, weather compensation, etc.) have been made correctly.

2. Adjust the AD Converter to show the same reading shown on the master gyrocompass.

(Do not make the adjustment while the ship is turning.)

If the gyro reading is accurate, the current indicator will provide accurate tide information. If gyro data is wrong, the following symptoms will appear.

•

The drift angle in the ground tracking mode is not the same as that in the nav mode or is shown in the direction reverse of the actual direction. Drift angle in ground tracking mode: Difference between ground speed and course and gyro heading Drift angle in nav mode: Difference between nav course and gyro heading.

•

Tide speed and direction in the ground mode is not the same as that in the nav mode. And the tide correlation (relative angle, size) between layers is different.

GT Mode NAV Mode

Appearanc e of tide vector s in ground tracki ng and nav modes w hen there is gyr o er r or

If you encounter such symptoms calibrate the current indicator as shown in the installation manual.

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Page 60

TIDE MEASUREMENT IN NAV MODE

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 mode, the current indicator derives tide information from the following data:

(1) Ship’s speed/course based on ground

(ground speed)

(2) Ship’s speed/course based on target layer

(water speed)

(3) Bearing of ship’s bow (heading by gyro)

Both ground speed (1) and water speed (2) are sensed by the common transducers mounted on the hull. Thus, they are the speed vectors with respect to the ship’s bow. No matter what the true bearing of the ship’s heading be, the relative angle of these two vectors does not change. The tide vector is simply given as the difference of these two speed vectors.

The heading data by gyro (3) is used after the tide vector calculation just to express the vector directions in true bearings (north referenced).

Even if the gyro data contains error, the sizes and relative angles of the vectors do not change. The gyro error only affects the bearing indication of each vector.

: True bearing of ship's bow (ref. north)

: Gyro reading

: Direction of ground speed (ref. bow)

: Direction of water speed (ref. bow)

True north

(3) Gyro

Ship's bow direction

reading

(2) Water speed

vector

(3) Ground speed

vector

Tide Vector

Without gyro error

True north

Gyro error

(3) Gyro

reading

Ship's bow direction

(2) Water speed

(3) Ground speed

vector

AP-4

Tide Vector

With gyro error

True bearing of each speed vector contains fixed error. But, their sizes and relative angles are maintained despite the gyro error.

Page 61

TIDE MEASUREMENT IN NAV MODE

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) Bearing of ship’s bow (heading by gyro)

Here, nav speed (1) is the ship’s speed vector sensed by the navigator, and the moving direction is expressed with respect to true north.

: True bearing of ship's bow (ref. north)

: Gyro reading

: True bearing of nav speed (ref. north)

: Direction of water speed (ref. bow)

While the water speed (2) is the ship’s speed vector measured by the current indicator using the Doppler shifts against the measuring layer, and accordingly its direction is expressed with respect to the ship’s bow.

True north

(3) Gyro

HθA

reading

Ship's bow

(2) Water speed

vector

As the directional reference of these two vectors are different (north vs ship’s bow), we can not simply calculate the difference of

(1) Nav speed

vector

vectors to obtain the tide vector in question.

So the direction of the water speed vector (2)

Tide Vector

is converted to true bearing (north referenced) by using the gyro data, and then

Without gyro error

the tide vector is calculated.

(3) Gyro

reading

Ship's bow

If the gyro data contains error, the true bearing of the water speed vector changes

True north

(rotates) accordingly. While the bearing of the nav speed vector does not change with the gyro error. (The relative angle of these two changes.)

Gyro error

(2) Water speed

vector

In other words the tide vector, given as a difference between these two speed vectors, changes in size (speed) and bearing by the

(1) Nav speed

vector

gyro error. (Error in size and bearing means the tide vector is unreliable and useless.)

Tide Vector

To obtain dependable tide/tide differential data, it is desirable to reduce the gyro error below 1degree.

Relative angle of water speed vector and nav speed vector changes with gyro error. Accordingly, the size (speed) and direction of tide vector change.

With gyro error

Note that the depth must be at least 40 m in order to calculate tide.

P-5

Page 62

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 signal is shifted from the transmitted frequency in proportion to the relative velocity between the vessel and underwater reflecting objects. This is called the Doppler Effect.

This equipment calculates and displays movements of ship and currents at specific depths by measuring Doppler shifts obtained from three separate directions.

Plankton layer

Bottom

Frequency of reflected signal is shifted in proportion to relative speed between the vessel and reflecting objects.

AP-6

Page 63

PRINCIPLE OF OPERATION

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)

Wat er t racking speed: Ship’s speed and course relative to water layer just below the

(Relative speed) vessel (floating base)

Navaid-gen erated speed: Ship’s speed and course obtained by external navigation

(Absolute speed) equipment (GPS)

GPS satellites

Navaid-generated speed (Pseudo ground tracking speed)

Water tracking speed

Near-surface layer

Ground tracking speed

Fixed

: Base of measurement

Tide

Tide is the 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.

P-7

Page 64

PRINCIPLE OF OPERATION

Absolute Tide = (1) – (2)

Layer (A)

: Base of measurement

Fixed

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 course based on layer (A)

2) Ship’s speed and course based on layer (B)

Tide differential between two layers is, then, given as a difference of these two speed vectors.

Tide Difference = (1) - (2) (Movement of layer B based on layer A) Or

= (2) - (1) (Movement of layer A based on layer B)

AP-8

Layer (A)

Layer (B)

: Base of measurement

Page 65

Tide, Nav-tide and Tide Differential

Tide (absolute tide)

Absolute tide can be measured in the ground tracking mode.

10 NM (1 hour trip)

PRINCIPLE OF OPERATION

Start of trip

Layer A

(Moving at 10 kt on ground)

(Moving at 3 kt on ground)

Fixed

End of trip

:Base of measurement

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 on layer A).

Speed of layer A based on ground (C1) can be calculated as follows:

C1 = Vg - Vwa = 10 – 7 = 3 (kt)

AP-9

Page 66

PRINCIPLE OF OPERATION

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.

10 NM (1 hour trip)

Start of trip

Layer A

Layer B

(Moving)

2 kt

:Base of measurement

5 kt

End of trip

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 layer A) Vwb = 5 kt (Ship’s speed based on layer B)

Tide differential calculations in ground tracking mode

As an absolute ship’s speed (Vg) is available in the ground tracking mode, tide speeds of layer A (C1) and layer B (C2) based on ground are calculated as follows:

C1 = Vg - Vwa (Speed of layer A based on ground) C2 = Vg - Vwb (Speed of layer B based on ground)

Thus, the tide differential (Cd) between layer A and layer B is; Tide differential based on layer A (speed of layer B as viewed from layer A) Cd = C2 - C1 = (Vg - Vwb) - (Vg - Vwa) = Vwa - Vwb = 8 - 5 = 3 (kt) OR Tide differential based on layer B (speed of layer A as viewed from layer B) Cd = C1 - C2 = (Vg - Vwa) - (Vg - Vwb) = Vwb - Vwa = 5 - 8 = -3 (kt)

AP-10

Page 67

PRINCIPLE OF OPERATION

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 relative to this near-surface layer.

Vw = 9 kt (Ship’s speed based on near-surface layer) Vwa = 8 kt (Ship’s speed based on layer A) Vwb = 5 kt (Ship’s speed based on layer B)

Start of trip

Nearsurface layer

Layer A

Layer B

1 kt

2 kt

10 NM (1 hour trip)

5 kt

End of trip

:Base of measurement

Assume that the ship and all measuring layers are moving in the same direction, but at different speeds.

AP-11

Page 68

PRINCIPLE OF OPERATION

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 based on near-surface layer) D2 = Vw - Vwb (Speed of layer B based on near-surface layer)

The tide differential (Dd) between layers A and layer B is;

Dd = D2 - D1 = (Vw - Vwb) - (Vw - Vwa) = Vwa - Vwb = 8 - 5 = 3 (kt)

Tide differential based on layer B (speed of layer A as viewed from layer B) Dd = D1 - D2 = (Vw - Vwa) - (Vw - Vwb) = Vwa - Vwb = 5 - 8 = -3 (kt)

If you compare the results of calculations on this page with the ones on preceding pages, you will find the tide differential of two layers is identical irrespective of tracking mode.

AP-12

Page 69

SPECIFICATIONS OF CI-68

CURRENT INDICATOR

1 TIDE

1.1 Speed 0.0-9.0 kts

1.2 Accuracy Within 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 in the ground tracking mode and greater than 40 m in the water tracking mode using “normal” pulse and greater than 70 m using long pulse. Actua l range will vary depending on installation and underwater conditions.

2 SPEED

2.1 Speed Fore-aft: -10.0 to 30 kt

Port-stbd: -9.9 to +9.9 kt

2.2 Accuracy Within ±1% or 0.1 kt, whichever is the larger

2.3 Direction All directions in one-degree steps (360°)

2.4 Depth of measurement 3-300 m (Actual depth depends on installation method and

(ground tracking mode) underwater conditions.)

3 DISPLAY

3.1 Display VGA (640x480 dot)

Content: Ship’s speed, course, drift angle, tide (3 layers), tide

differential (2 layers), setting depth, heading, position, echo level, water temperature

Displays: Tide vector, graph, course plot, ship’s speed, text,

echo monitor

4 TRANSMISSION

4.1 Frequency 244 kHz

5 FUNCTIONS

5.1 Modes of measurement Ground tracking, water tracking, nav-aided, automatic

5.2 Functions bottom tide tracking, alarm output, interference rejecter,

demonstration mode

5.3 Corrections Ship’s speed, tide, installation angle (bearing error, trim, heel),

course error, draft, external KP range

SP - 1 E7252S01B

031120

Page 70

FURUNO

CI-68

6 I/O DATA

6.1 Format Current loop, NMEA 0183 ver. 1.5/2/0/3.0, IEC 61162-1 Ed. 2

IEC 61162-2, current indicator (FURUNO’s own format)

6.2 NMEA input sentences ZDA, RMC, RMA, GGA, GLL, VTG, HDT, HDM, HDG, DBT, DPT,

MTW

6.3 NMEA output sentences VBW, VDR, VHW, VTG, VLW, CUR

6.4 CIF input sentences System time, measuring position, heading, bearing, depth, water

temperature

6.5 CIF output sentences Tide data for 1

layer, tide-measured speed, depths for multi-layers

6.6 Current indicator data Date and time data, position data, speed data, current indicator data,

reverberation level data, speed calibration data, angle calibration data, alarm output data, other

7 POWER SUPPLY

7.1 Transceiver unit, 100/110/115-120/200/220/220/230/240 VAC, single phase,

monitor unit, control unit 3A (100 VAC) – 1.5A (200 VAC)

8 WATERPROOFING

8.1 Monitor unit IPX0

8.2 Transceiver unit IPX0

8.3 Control unit (panel) IPX2

8.4 Control unit (rear) IPX0

8.5 Junction box IPX4

8.6 Transducer IPX8

9 ENVIRONMENTAL CONDITIONS

9.1 Temperature Transducer: -5°C to 35°C

Other units: -15°C to 55°C

9.2 Relative humidity Less than 95% (40°C)

10 COLOR

10.1 Monitor unit Panel: N3.0, Cover: 2.5GY5/1.5

10.2 Control unit Panel: N3-2, Cover: 2.5GY5/1.5

10.3 Transceiver unit 2.5GY5/1.5

SP - 2

E7252S01A

Page 71

INDEX

ALARM menu ............................................3-12

Alarms

disabling audible alarm..........................3-16

disabling/enabling..................................3-16

ship’s speed...........................................3-13

tide differential .......................................3-13

tide speed and direction ........................3-13

trip alarm (distance)...............................3-15

trip alarm (time) .....................................3-16

Background color.........................................3-8

Bearing mode ..............................................3-4

Bottom search .............................................3-5

Bottom tide tracking.....................................3-5

BRILL key ....................................................1-3

Brilliance......................................................1-3

Control description.......................................1-1

Course plot display

description .............................................2-19

on/off........................................................3-7

overview...................................................1-6

Diagnostics

general test ..............................................4-4

panel test .................................................4-6

test pattern...............................................4-7

DISP MODE key..........................................1-4

DISP1 menu ................................................3-8

DISP2 menu ..............................................3-10

Echo level display

description .............................................2-20

on/off........................................................3-8

overview...................................................1-7

type ........................................................3-10

Echo range ..................................................3-6

Electronic bearing scale ............................2-14

Error display...............................................2-21

Error messages ...........................................4-8

Function keys .............................................. 3-3

Fuse replacement ....................................... 4-2

Gain............................................................. 3-6

General test................................................. 4-4

Graph display

description............................................. 2-17

drawing method....................................... 3-9

mode .......................................................3-9

on/off ....................................................... 3-7

overview .................................................. 1-5

temperature display ................................3-9

Graph text ................................................... 3-9

Heading ..................................................... 2-12

Heading line .............................................. 2-14

Heading line on/off ...................................... 3-8

Head-up ...................................................... 3-9

History graph............................................. 2-16

History settings.......................................... 3-11

Key beep ..................................................... 3-5

Layer vector on/off ...................................... 3-8

LYR keys ..................................................... 1-8

Maintenance

fuse replacement .................................... 4-2

routine .....................................................4-1

MENU 1 menu............................................. 3-4

MENU 2 menu............................................. 3-7

MENU key ................................................... 3-1

Menu tree ....................................................... 1

Mode marker............................................. 2-12

MODE menu ............................................... 3-7

NAV mode ................................................... 3-4

North mark ................................................ 2-19

North-up ......................................................3-9

IN-1

Page 72

INDEX

Panel dimmer ..............................................3-6

Panel test.....................................................4-6

POWER switch ............................................1-2

RANGE key ...............................................1-10

Scale.................................................2-19, 3-11

Scale sync .................................................3-11

Ship speed display

on/off........................................................3-7

Ship’s speed averaging ...............................3-4

Ship’s speed display

description .............................................2-15

overview...................................................1-5

Ship’s speed mode ......................................3-9

Ship’s speed vector on/off ...........................3-8

Ship’s track on/off ...................................... 3-11

Test pattern ................................................. 4-7

Text display

on/off ....................................................... 3-7

overview .................................................. 1-6

Tide averaging ............................................ 3-4

Tide differential reference layer .................. 3-4

Tide differential vector on/off....................... 3-8

Tide vector................................................. 2-14

interval................................................... 3-11

length..................................................... 3-11

Tide vector display

description............................................. 2-11

on/off ....................................................... 3-7

overview .................................................. 1-4

TRACK MODE key ..................................... 1-9

Trip distance marker ................................. 2-18

Trip log resetting ......................................... 3-5

Troubleshooting .......................................... 4-3

TVG ............................................................. 3-6

Water tracking speed depth ........................ 3-5

IN-2

Furuno CI-68 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY INSTRUCTIONS

TABLE OF CONTENTS

FOREWORD

SYSTEM CONFIGURATION

DISPLAY EXAMPLE

OPERATION AL OVERVIEW

1.1 Controls

1.2 Turning the Power On/Off

1.3 Adjusting LCD Brilliance

1.4 Choosing a Display

1.5 Setting Measuring Depths

1.6 Choosing Speed Tracking Mode

1.7 Choosing the Range

INTERPRETING THE DISPLAYS

2.1 Tide Vector Display

2.2 Ship’s Speed Display

2.3 Graph Display

2.4 Course Plot Display

2.5 Echo Level Display

2.6 Error Display

CUSTOMIZING THE SYSTEM

3.1 Menu Operation

3.2 Function Keys

3.3 MENU 1 Menu

3.4 MENU 2 Menu

3.5 ALARM Menu

4.1 Routine Maintenance

4.2 Replacing Fuses

4.3 Troubleshooting

4.4 Diagnostics

4.5 Error Messages and Alerts

APPENDIX

MENU TREE

TIDE MEASUREMENT IN NAV MODE

PRINCIPLE OF OPERATION

INDEX