DOPPLER SONAR
CURRENT INDICATOR
CI-68
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Your Local Agent/Dealer
9-52 Ashihara-cho,
Nishinomiya, Japan
Telephone : 0798-65-2111
fax
0798-65-4200
:
FIRST EDITION : OCT. 2003
Printed in Japan
All rights reserved.
A1
: NOV. 27,2003
PUB.No. OME-72520
*00014802200*
*00014802200*
* 0 0 0 1 4 8 0 2 2 0 0 *
( DAMI )
CI-68
*OME72520A10*
*OME72520A10*
* O M E 7 2 5 2 0 A 1 0 *
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SAFETY INSTRUCTIONS
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
WARNING
Keep heater away from equipment.
A heater can melt the equipment's power
cord, which can cause fire or electrical
shock.
Only qualified personnel
should work inside the
equipment.
Use the proper fuse.
Immediately turn off the power at the
switchboard if water leaks into the
equipment or something is dropped in
the equipment.
Use of a wrong fuse can damage the
equipment.
Do not operate the equipment with wet
hands.
Continued use of the equipment can cause
fire or electrical shock. Contact a FURUNO
agent for service.
Electrical shock can result.
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury 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.
i
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WARNING LABEL
CAUTION
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.
Check the zinc plate (anticorrosion
measure) regularly for corrosion and
replace it when the ship is drydocked.
Corrosion may occur. As a result the
transducer may fall out, allowing water to
leak inside the vessel.
Transceiver Unit
WARNING
Name: Warning Label (1)
To avoid electrical shock, do not
remove cover. No user-serviceable
parts inside.
Type: 86-003-1011-1
Code No.: 100-236-231
Do not use the equipment for other than
its intended purpose.
Monitor Unit
Name: Warning Label (2)
Type: 03-129-1001-1
Code No.: 100-236-741
Damage to the equipment or bodily
injury may result if the equipment is
misused.
TFT LCD
Do not transmit with the transducer out
of water, when drydocked, etc.
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
The transducer may become damaged.
characteristic of the LCD.
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.
ii
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TABLE OF CONTENTS
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
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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
iv
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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.
•
•
•
•
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.
•
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.
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
•
•
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.
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.
•
•
Commercially available monitor may be
used in lieu of the LCD monitor.
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.)
v
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SYSTEM CONFIGURATION
MONITOR UNIT
MU-100C
VGA Monitor
OR
CONTROL UNIT
CI-6888
CONTROL UNIT
CI-6888
NMEA1 Output
NMEA1 Input
TRANSCEIVER UNIT
CI-6810
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
JUNCTION BOX
CI-630
: Standard Supply
: Optional Supply
: Local Supply
24 VDC
DC-AC INVERTER
TR-2451
TRANSDUCER
CI-620
System configuration
vi
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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: White (dashed)
Tide vector display
vii
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1. OPERATIONAL OVERVIEW
1.1 Controls
Setting Knob
CursorPad
FURUNO
CURRENT INDICATOR
-
+
LYR1
LYR2
LYR3
F1
F2
F3
POWER
TRACK
MODE
DISP
MODE
RANGE
MENU
BRILL
Control unit
Function
Control
POWER
Turns power on or off.
Function keys (menu shortcut keys)
F1 – F3
LYR1 – LYR3
Setting Knob
RANGE
Set tide measuring depths for respective layers.
Sets measuring depth and range.
Sets range. The range which can be set depends on mode.
Chooses tracking mode among ground, water (or nav) and auto.
Chooses a display mode.
TRACK MODE
DISP 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.
1-1
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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
6
CI-6810
VOL.6651001-XX.XX
TBL.
MEM. 1 2 3 4
ANA.12V;12.03V
TRM. +25.02 C
5
7 8
OK
BV;
110.0V
DSW. 00
DSW. - -
00
00
00
00
00
00
XX: Program Version No.
Diagnostic 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
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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
L
6
L
H
H
CURSOR PAD, [BRILL] KEY: CHANGE SETTING
Brilliance 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
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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 display
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)
Mode Marker
Tracking Mode
Tide Speed Range
Heading*
Echo Level
Speed, Course*
Depth Setting
Tide Speed
and Direction
(3 layers)
Echo Display
Range
Water
Temperature*
Water Temperature
Graph*
*: Sensor required.
Tide of Layer 3 (Light-blue)
Tide of Layer 2 (Purple)
Tide Differential
Own Ship Vector (Green)
Tide vector display
1-4
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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)
Ship Speed
(Synthesized Speed)
Fore-Aft Speed
History Graph
Fore-Aft Speed
Own Ship Vector
Port-Starboard
Speed
Drift Angle
Port-Starboard Speed History Graph
Trip
Distance
Ship’s speed display
1.4.3 Graph display
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
Marker
*: Sensor required.
Text Window
Graph display
1-5
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1. OPERATIONAL OVERVIEW
1.4.4 Course plot display
The course plot display plots ship’s track along with tide vectors.
Own Ship Position
Tide Vector
Ship’s Track
North Mark
Text Window
Tide Display Interval
Scale
DIV
Position
Course plot display
1.4.5 Text display
The text display provides various nav data in digital format.
Tracking Mode
Mode Marker
Fore-Aft Speed
Port-Starboard
Speed
Heading
Speed
and
Drift Angle
Course
Tide Differential
Tide Speed
and Direction
(3 layers)
Water Temperature*
Trip Distance
*: Sensor required.
Text display
1-6
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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 1
Beam 2
Echo level display
1-7
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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)
20 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
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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
GPS Satellies
Ship's movement
based on ground
Ship's movement
measured by
relative to surface
water
using satellites
(Based on ground)
Measuring
depth
Dir
N
Surface Layer
(Reference layer)
Layer 1
Tide movement
of layer 1
Tide movement of
layer 1 relative to
surface water
Speed
Layer 2
Tide movement
of layer 1
Tide movement
of layer 2
Layer 1
Layer 2
Layer 3
Layer 1
Layer 2
Layer 3
Tide movement of
layer 2 relative to
surface water
Tide movement of
layer 3 relative to
surface water
Tide movement
of layer 2
Tide movement
of layer 3
Layer 3
Tide movement
of layer 3
Bottom
Ground Tracking Mode
Nav Mode
Water Tracking Mode
Tracking modes
1-9
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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 vector 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 range 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
Echo level
The display scale setting window appears. Set display scale as appropriate.
Tide speed range setting window appears. Set tide and tide differential range
(radius of vector display ring) appropriately.
1-10
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2. INTERPRETING THE DISPLAYS
2.1 Tide Vector Display
Tide Average Setting
Heading Line
Tide of Layer 1 (Yellow)
Mode Marker
Tide Speed Range
Tracking Mode
Heading*
Echo Level
Speed, Course*
Layer 1: Yellow
Layer 2: Purple
Electronic
Bearing Scale*
Echo Display
Range
Layer 3: Light-blue
Water
Temperature*
Tide differential
between reference
and deeper of
Water Temperature
Graph*
other two layers
*: Sensor required.
Tide differential
between reference
and shallower of
other two layers
Tide of Layer 3 (Blue)
Tide of Layer 2 (Purple)
Note: Missing or wrong
data is denoted
with " --".
Text Window
Speed and direction
of tide and tide
differential
Own Ship Vector (Green)
Tide vector display
2-1
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2. INTERPRETING THE DISPLAYS
Description of indications on tide vector display
Item
Description
Heading
Mode
Ship’s heading fed from a heading sensor.
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:
Blue:
Ground tracking mode
Water tracking mode, nav mode
Background: Speed error
Current mode
3 min
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
N
Speed made good
(ground tracking speed,
water tracking speed or
nav speed)
Heading
(fed from
heading
sensor)
2-2
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2. INTERPRETING THE DISPLAYS
Item
Description
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:
Tide speed and
direction
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
Ship's movement
relative to surface
based on ground
water.
Measuring
depth
Dir
N
Surface Layer
(Reference layer)
Layer 1
Tide movement
of layer 1
Tide movement of
layer 1 relative to
surface water.
Speed
Layer 2
Tide movement
of layer 2
Layer 1
Layer 2
Layer 3
Tide movement of
layer 2 relative to
surface water.
Tide movement of
layer 3 relative to
surface water.
Layer 3
Tide movement
of layer 3
Bottom
Ground Tracking Mode
Water Tracking Mode
GPS Satellies
Ship's movement
measured by
using satellites
(Based on ground)
Tide movement
of layer 1
Layer 1
Layer 2
Layer 3
Tide movement
of layer 2
Tide movement
of layer 3
Nav Mode
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 Water temperature over the latest 15 minutes is displayed with a blue line, the
graph
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
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2. INTERPRETING THE DISPLAYS
Item
Description
Heading line
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/tide
differential vector
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
(1)
N
(2)
NE
NW
(3)
(4)
W
E
Tide
Differential
Vectors
SW
SE
(5)
S
Heading Line
(1)
(2)
(3)
Yellow
Purple
Yellow
Purple
. . . .
. . . .
Layer 1
Layer 2
Light-blue
Light-blue
. . . .
Layer 3
Purple
(4)
(5)
YellowPurple Yellow
Purple
Yellow
2
2
1. . . .
3. . . .
Purple
Purple Light-bluePurple Light-blue
Light-blue
Reference
Layer
Measuring Layer
(Right half)
(Left half)
Ship’s speed
vector
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.
Electronic bearing The electronic bearing scale shows bearing. If a heading sensor is connected
scale
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
setting
The value set with TIDE AVERAGE in the MENU 1 menu is shown.
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
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2. INTERPRETING THE DISPLAYS
2.2 Ship’s Speed Display
Fore-Aft Speed
History Graph
Synthesized Speed Vector (Green)
Ship Speed
(Synthesized Speed)
Fore-Aft Speed
Own Ship Vector
Port-Starboard
Speed
Drift Angle
Port-Starboard Speed History Graph
Trip Distance
Ship’s speed display
Description of ship’s speed display indications
Item
Description
Ship’s speed* (In
GT, WT) or
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
Water tracking
speed
(In Nav mode)
(kt).
*: Speed measured depends on setting of SHIP SPD MODE in the DISP1
menu.
Ground tracking mode
Ship’s speed
Ground tracking speed
Water tracking mode
Ship’s speed
Water tracking speed
Ref. layer selected
Water tracking layer
selected
Fore-aft speed*
Speed in the fore-aft direction. The speed setting range is 0.0 to 40.0 (kt).
Fore speed is denoted with a yellow “▲” above the speed readout and aft
speed with a yellow “▼” below the speed readout.
Port-starboard
speed*
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
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2. INTERPRETING THE DISPLAYS
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 in the DISP2 menu is set to
ON.
Fore-aft speed history graph
Port-starboard history graph
This graph shows fore-aft speed history over time, which is useful
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.
This graph shows port-starboard speed history over time, which is
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
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2. INTERPRETING THE DISPLAYS
2.3 Graph Display
0-6 hours
of latest data
0-60 minutes
of latest data
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
*: Sensor required.
Text Window
Note: When overlapping occurs,
layer having highest number
has priority.
Depth of
each layer
Graph display
Description of graph display indications
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.
2-7
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2. INTERPRETING THE DISPLAYS
Description of graph display indications (con’t from previous page)
Item
Description
Water temperature graph
The water temperature graph may be turned on or off with TEMP
GRAPH in the DISP1 menu.
Mode marker
Depth graph
The mode marker shows by color which tracking mode is in use.
Green:
Blue:
Ground tracking mode
Water tracking mode, nav mode
Background: Ship’s speed error
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.
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
Background Green
color
2-8
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2. INTERPRETING THE DISPLAYS
2.4 Course Plot Display
Own Ship Position
Tide Vector
Ship’s Track
North Mark
*
: Sensor required.
Scale
Tide Display Interval
Text Window
DIV
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
Tide vector
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.
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
Scale
The north mark points upward on the course plot display.
You may choose the scale with SCALE in the DISP2 menu.
Shows range per scale division.
DIV
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.
2-9
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2. INTERPRETING THE DISPLAYS
2.5 Echo Level Display
Tide Vector
Echo Level
Echo Display Range
Beam 3
Beam 1
Beam 2
Echo level display
Description of echo level display indications
Item
Description
Echo status of beam 1 (fore), beam 2 (starboard) and beam 3 (port)
is displayed in eight colors.
Echo level
The echo display range can be set with ECHO RANGE in the
MENU 1 menu.
Echo display range
2-10
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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
(1) No data input from
transceiver unit
SPD/CSE kt
SPD/CSE
kt
12.3 333
12.3 333
(2) Ship’s speed error
(2) Ship’s speed error
Tide vector, speed, graph and
course plot displays
Text and echo level displays
SPEED FORE-AFT
kt
GT SPEED kt DRIF2T .7
12.0
DIR 13
12.0
SPEED PORT-STBD
(2) Ship’s speed
error
2.7
(2) Ship’s speed error
DRIFT ANGLE
13
Ship’s speed display
Text display
Speed and course error 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.
2-11
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2. INTERPRETING THE DISPLAYS
Tide for three layers/tide differential
(4) Depth setting error
(4) Depth setting error
TIDE SPD/VECTOR kt
TIDE SPD/VECTOR
1
2m
1
2m
kt
2.3 140
2.3 140
(3) Echo from measuring layer
is abnormal
(3) Echo from measuring layer
is abnormal
Tide vector, speed, graph and
course plot displays
Text and echo level displays
TIDE DIFF
1 2
TIDE DIFF kt
1 2
kt
2.3 140
2.3 140
3) Echo from measuring layer
is abnormal
3) Echo from measuring layer
is abnormal
Tide vector, speed, graph and
course plot displays
Text and echo level displays
Tide and tide differential error displays
(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.
2-12
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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.
MAIN menu
title
MENU 1
MENU 2
ALARM
INSTALLATION
SUB menu title
MODE DISP1 DISP2
TIDE VECTOR
:
:
:
:
:
:
OFF
ON
ON
ON
ON
ON
ON
SHIP SPEED
GRAPH
OFF
OFF
OFF
OFF
OFF
COURSE PLOT
TEXT
ECHO LEVEL
BACKGROUND CLR : BLACK WHITE
BLUE
MENU ON DISPLAY SETTINGS.
]:SELECT, [ / ]: CHANGE, [MENU]: EXIT
Help
[
/
MODE menu
2. Press ▲ to place the cursor on the main menu title field.
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 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 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 function 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
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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
2 min
30 sec 60 sec 90 sec
LAYER 2 LAYER 3
TIDE AVERAGE
REF TIDE DIFF
:
:
LAYER 1
BEARING MODE : 32 CMPS 360 TRUE
NAV MODE
:
OFF
NO
ON
YES
BOTTOM SEARCH:
BTM TIDE TRACK :
OFF
OFF
2 m
NO
ON
ALM/KEY BEEP
WT SPD DEPTH
:
:
ON
(2-400m)
YES
RESET TRIP LOG :
TEST
:
:
:
:
:
NO GENERAL PANEL PATTERN
150 m
ECHO RANGE
TVG
OFF
ON
(1-40)
(0-7)
GAIN
5
5
PANEL DIMMER
MENU ON INITIAL SETTINGS.
[
/
]:SELECT, [ / ]: CHANGE, [MENU]: EXIT
MENU 1 menu
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 MODE
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.
3-4
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3. CUSTOMZING THE SYSTEM
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:
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 acquire 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
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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.
3-6
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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
ON
ON
ON
ON
ON
SHIP SPEED
GRAPH
OFF
OFF
OFF
OFF
OFF
COURSE PLOT
TEXT
ECHO LEVEL
BACKGROUND CLR : BLACK WHITE
BLUE
MENU ON DISPLAY SETTINGS.
]:SELECT, [ / ]: 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 PLOT
Enable or disable the course plot display.
TEXT
Enable or disable the text display.
3-7
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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
MODE DISP1 DISP2
COMMON SETTINGS
MENU 2
ALARM
INSTALLATION
TIDE RANGE
SHIP SPD VCTR
HEADING LINE
TIDE VECTOR
LAYER 1
:
3.0kt
OFF
:
ON
ON
: OFF
: OFF
: OFF
: OFF
: OFF
ON
ON
ON
ON
LAYER 2
LAYER 3
TIDE DIFF
DISPLAY MODE
SHIP SPD MODE
GRAPH
: HEAD UP NORTH UP
GT/WT WT
:
MODE
: TIDE
: NORTH
: OFF
TIDE DIF SHIP SPD
TIDE GRAPH
TEMP GRAPH
TEXT WINDOW
SOUTH
ON
Graph display
settings
:OFF
ON
MENU ON DISPLAY SETTINGS.
]:SELECT, [ / ]: 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
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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.
North is at the
top of the screen.
HEADING LINE
W
N
NW
NE
SW
NW
S
N
W
E
SE
NE
SW
SE
E
S
Head-up
North-up
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.
3-9
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3. CUSTOMIZING THE SYSTEM
3.4.3 DISP2 menu
MENU 1
MODE DISP1 DISP2
TIDE VECTOR
ECHO LEVEL
MENU 2
ALARM
INSTALLATION
:
OFF
ON
Tide vector
display settings
DISP MODE
SHIP SPEED
SCALE SYNC
DRIFT SCALE
SCALE
: SOUNDER
GRAPH
:
:
:
:
:
:
OFF
1.0 kt
10.0 kt
0.5 kt
4 kt
ON
Ship’s speed
display settings
DRIFT HISTORY
HISTORY
1 kt
8 kt
2 kt
16 kt
32 kt
HISTORY SHIFT
COURSE PLOT
SCALE
0 kt
:
:
:
1:10000 1:20000 1:50000 1:100000
2.0
INTERVAL
SHIP TRACK
OFF
LONG
OFF
ON
SHORT
ON
Tide differential
display settings
VECTOR LENGTH :
TEXT WINDOW
:
MENU ON DISPLAY SETTINGS.
[
/
]:SELECT, [ / ]: 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
Beam 2
Echo strength
0 m
0 m
TX
pulse
Depth
Layer 1 depth value: Yellow
Layer 2 depth value: Purple
Layer 1 depth value: Light-blue
Echo level:
Beam 1: Yellow
Beam 2: Purple
Beam 3: Light-blue
Bottom echo
Bottom
echo
200 m
Echo display range
200 m
COLOR GRADATION
(Color sounder)
AMPLITUDE GRAPH
(A-scope)
Echo level displays
3-10
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3. CUSTOMZING THE SYSTEM
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 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.
VECTOR 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.
3-11
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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, LAYER 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
1 → 2
2 → 1
Deep TD
1 → 3
2 → 3
1
2
3
3 → 1
3 → 2
SHIP SPEED
Sets speed and course for speed alarm.
TRIP
Sets distance and time for trip alarm.
3-12
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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 tide speed, tide direction, 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
DISP2
MENU 2
ALARM
INSTALLATION
LAYER 1
: SPD
: DIR
: SPD
: DIR
: SPD
: DIR
: SPD
: DIR
: SPD
: DIR
: SPD
: CSE
: DIST
: TIME
LAYER 2
LAYER 3
SHALLOW T/D
DEEP T/D
SHIP SPEED
TRIP
MENU ON ALARM SETTINGS.
[
/
]:SELECT, [ / ]: 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
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3. CUSTOMIZING THE SYSTEM
Tide speed range value Alarm being set
Present tide
data for layer 1
3.0kt SPD LAYER1
KEY MAX
KEY MIN
N
Cursor pad
NW
NE
STATUS
0.0kt
0
TIDE
MIN 0.0kt
MAX 0.0kt
W
E
Alarm
settings
DIRECTION
MIN
0
MAX 0
SE
SW
QUIT
ANY FUNC KEY
S
Alarm setting 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.
3.0kt DIR LAYER1
KEY MAX
N
N
KEY MIN
NW
NE
STATUS
0.0kt
0
Tide
speed
alarm
setting
TIDE
MIN 1.0kt
MAX 2.0kt
W
E
DIRECTION
MIN
MAX
0
0
SE
SW
QUIT
ANY FUNC KEY
S
Alarm setting screen (tide speed set)
7. Press any function key to return to the ALARM menu.
8. Press ▼ to choose DIR at LAYER 1.
appears to the right of SPD.
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
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3. CUSTOMZING THE SYSTEM
Starting point
3.0kt DIR LAYER1
KEY MAX
KEY MIN
N
Ending point
Tide direction
alarm setting
NW
NE
STATUS
0.0kt
0
Tide speed
alarm setting
TIDE
MIN 1.0kt
MAX 2.0kt
W
E
DIRECTION
MIN 350
MAX 10
SE
SW
QUIT
ANY FUNC KEY
S
Alarm setting 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 distance 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.
Distance trip alarm setting 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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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.
Time 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
or
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.
6. Press ► to choose YES.
7. Press any function key to return to the ALARM menu. The
8. Press the [MENU] key to close the menu.
or
is removed.
3-16
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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
maintenance or troubleshooting procedure, please review the safety information below.
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
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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
Monitor Unit
Control Unit
Type
Code No.
000-104-909
000-103-165
000-549-021
000-549-022
FGMB 3A 125V
FGMB 2A 125V
FGBO 3A AC250V
FGBO 5A AC250V
Transceiver Unit
(100 VAC spec.)
Transceiver Unit
(200 VAC spec.)
FGBO 3A AC250V
000-549-021
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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
Then…
If…
nothing appears on the screen when the
power switch is pressed
• check that the power cable is firmly connected.
• The fuse may have blown. Request replacement of
the fuse.
• adjust brilliance.
ship’s track is not displayed
• turn on SHIP TRACK in the DISP2 menu.
bottom echo is not shown on the echo
level display
• 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.
• suspect poor measuring conditions.
• bottom is covered with sludge or the like.
• marine life may be adhering to the transducer.
• adjust tide average on the MENU 1 menu.
• check ground for corrosion.
echo display is interrupted
tide data is unstable
interference is present
• check if the cables of other equipment are near the
transducer cable.
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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
2 min
30 sec 60 sec 90 sec
LAYER 2 LAYER 3
TIDE AVERAGE
REF TIDE DIFF
:
:
LAYER 1
BEARING MODE : 32 CMPS 360 TRUE
NAV MODE
:
OFF
NO
ON
YES
BOTTOM SEARCH:
BTM TIDE TRACK :
OFF
OFF
2 m
NO
ON
ALM/KEY BEEP
WT SPD DEPTH
:
:
ON
(2-400m)
YES
RESET TRIP LOG :
TEST
:
:
:
:
:
NO GENERAL PANEL PATTERN
150 m
ECHO RANGE
TVG
OFF
ON
(1-40)
(0-7)
GAIN
5
5
PANEL DIMMER
MENU ON INITIAL SETTINGS.
[
/
]:SELECT, [ / ]: CHANGE, [MENU]: EXIT
MENU 1 menu
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.
4-4
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4. MAINTENANCE & TROUBLESHOOTING
TVG ON/OFF
(Use or to apply or remove
TVG from echo display, respectively.)
CI-68
Model
Control
CI-6888
VOL.
6651000-XX.XX
Unit
Test
MEM.
SIO.
1
2
3
OK
OK
NL -8, -2, -5
TVG ON OFF
Noise Level of
Beam 1, Beam 2
and Beam 3
CI-6810
VOL.
6651001-XX.XX
Beam 3
(Port)
Beam 1
(Fore)
Beam 2
(Starboard)
TBL.
MEM. 1 2 3 4 5 6 7 8 OK
Transceiver
Unit Test
ANA.
12V;12.03V BV;110.0V
TRM.
+25.02 C
DSW. 00 00 00 00
DSW. -- 00 00 00
PRESS [MENU] KEY TO QUIT.
XX: Program Version No.
Echo display for three beams
Diagnostic test results
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.
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.
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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.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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.
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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.
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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 messages and alerts
Error Message or Alert
Meaning
Error Message (from transceiver unit)
WARNING! OVERHEATED TRANSDUCER [001]
WARNING! ABNORMAL TX VOLTAGE [002]
WARNING! CHARGING ERROR (+B) [003]
WARNING! ABNORMAL INPUT 12V [009]
WARNING! NO POSITION DATA [100]
WARNING! NO SPEED DATA [101]
WARNING! NO DEPTH DATA [103]
WARNING! NO HEADING DATA [104]
WARNING! ABNORMAL COURSE DATA [105]
WARNING! NO TEMPERATURE DATA [106]
WARNING! ABNORMAL TEMP INPUT [201]
Alert (from control unit)
Overheated transducer
Abnormal Tx voltage
Abnormal +B voltage
Abnormal Input voltage (12 V)
External position data is missing
External speed data is missing
External depth data is missing
Position data is missing
Abnormal course error angle
Water temperature data is missing
Abnormal water temperature sensor
WARNING! LAYER 1 TIDE SPEED
Layer 1 speed alarm has been violated.
Layer 1 tide direction alarm has been violated.
Layer 1 speed alarm has been violated.
Layer 1 tide direction alarm has been violated.
Layer 1 speed alarm has been violated.
Layer 1 tide direction alarm has been violated.
WARNING! LAYER 1 TIDE DIRECTION
WARNING! LAYER 2 TIDE SPEED
WARNING! LAYER 2 TIDE DIRECTION
WARNING! LAYER 3 TIDE SPEED
WARNING! LAYER 3 TIDE DIRECTION
WARNING! SHALLOWER TIDE DIFF SPD
Shallow tide differential tide speed alarm has
been violated.
WARNING! SHALLOWER TIDE DIFF DIR
WARNING! DEEPER TIDE DIFF SPD
WARNING! DEEPER TIDE DIFF DIR
Shallow tide differential tide direction alarm has
been violated.
Deep tide differential tide speed alarm has
been violated.
Deep tide differential tide direction alarm has
been violated.
WARNING! SHIP SPEED
WARNING! SHIP COURSE
WARNING! TRIP DISTANCE
WARNING! TRIP TIME
Speed alarm has been violated.
Course alarm has been violated.
Trip distance alarm has been violated.
Trip time alarm has been violated.
4-8
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APPENDIX
MENU TREE
Default settings shown in bold italic.
MENU
SHIP SPD AVG (15 sec, 30 sec, 60 sec, 90 sec)
MENU 1
key
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 (50 m, 100 m, 150 m, 200 m, 250 m, 300 m 350 m,
400 m, 450 m, 500 m)
TVG (OFF, ON)
GAIN (1-40, 5)
PANEL DIMMER (0-7, 5)
TIDE VECTOR (OFF, ON)
SHIP SPEED (OFF, ON)
GRAPH (OFF, ON)
MENU 2
MODE
COURSE PLOT (OFF, ON)
TEXT (OFF, ON)
ECHO LEVEL (OFF, ON)
BACKGROUND CLR (BLACK, WHITE, BLUE)
DISP1
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
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)
TIDE GRAPH (NORTH, SOUTH)
TEMP GRAPH (OFF, ON)
TEXT WINDOW (OFF, ON)
(Continued on next page)
AP-1
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MENU TREE
(Continued from previous page)
DISP2
TIDE
ECHO LEVEL (OFF, ON)
VECTOR
SHIP
DISP MODE (SOUNDER, GRAPH)
SCALE SYNC (OFF, ON)
SPEED
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)
COURSE
PLOT
VECTOR LENGTH (LONG, SHORT)
TEXT WINDOW (OFF, ON)
* Shown when
SCALE SYNC is off.
ALARM
LAYER 1
SPD
DIR
SPD
DIR
SPD
DIR
SPD
DIR
SPD
DIR
LAYER 2
LAYER 3
SPD (0-speed range setting)
DIR, CSE (0-359 ( ))
SHALLOW
T/D
DEEP
T/D
SHIP
SPEED
TRIP
SPD
CSE
DIST (0-30 (nm))
TIME (0-23:59:59 (h:m:s))
AP-2
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TIDE MEASUREMENT IN NAV MODE
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
Appearance of tide vectors in ground tracking and nav modes when there is gyro error
If you encounter such symptoms calibrate the current indicator as shown in the installation
manual.
AP-3
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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:
A
H
: True bearing of ship's bow (ref. north)
: Gyro reading
: Direction of ground speed (ref. bow)
: Direction of water speed (ref. bow)
θ
θ
θ
θ
G
W
(1) Ship’s speed/course based on ground
(ground speed)
(2) Ship’s speed/course based on target layer
(water speed)
True north
(3) Gyro
reading
Ship's bow direction
(3) Bearing of ship’s bow (heading by gyro)
H
=
θ
A
θ
W
θ
(2) Water speed
vector
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.
G
θ
(3) Ground speed
vector
Tide Vector
Without gyro error
(3) Gyro
The heading data by gyro (3) is used after the
tide vector calculation just to express the
vector directions in true bearings (north
referenced).
True north
reading
Ship's bow direction
A
θ
H
θ
W
θ
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.
Gyro
error
(2) Water speed
vector
G
θ
(3) Ground speed
vector
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.
AP-4
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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
A
θ
θ
θ
θ
: True bearing of ship's bow (ref. north)
: Gyro reading
: True bearing of nav speed (ref. north)
: Direction of water speed (ref. bow)
vector sensed by the navigator, and the
moving direction is expressed with respect to
true north.
H
N
W
While the water speed (2) is the ship’s speed
vector measured by the current indicator
using the Doppler shifts against the
True north
(3) Gyro
reading
Ship's bow
measuring layer, and accordingly its direction
is expressed with respect to the ship’s bow.
H
A
θ
=
θ
W
θ
(2) Water speed
vector
N
θ
As the directional reference of these two
vectors are different (north vs ship’s bow), we
can not simply calculate the difference of
vectors to obtain the tide vector in question.
(1) Nav speed
vector
Tide Vector
So the direction of the water speed vector (2)
is converted to true bearing (north
referenced) by using the gyro data, and then
the tide vector is calculated.
Without gyro error
(3) Gyro
True north
reading
If the gyro data contains error, the true
bearing of the water speed vector changes
(rotates) accordingly. While the bearing of the
nav speed vector does not change with the
gyro error. (The relative angle of these two
changes.)
Ship's bow
A
θ
θ
H
θ
N
W
θ
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
gyro error. (Error in size and bearing means
the tide vector is unreliable and useless.)
(1) Nav speed
vector
Tide Vector
With gyro error
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.
Note that the depth must be at least 40 m in
order to calculate tide.
AP-5
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PRINCIPLE OF OPERATION
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.
Frequency of reflected signal is
shifted in proportion to relative speed
between the vessel and reflecting
objects.
Plankton layer
Bottom
AP-6
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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)
Water tracking speed:
(Relative speed)
Ship’s speed and course relative to water layer just below the
vessel (floating base)
Navaid-generated 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
: Base of measurement
Ground tracking speed
Fixed
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.
AP-7
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PRINCIPLE OF OPERATION
Absolute Tide = (1) – (2)
2
Layer (A)
1
: 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)
2
Layer (A)
1
Layer (B)
: Base of measurement
AP-8
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PRINCIPLE OF OPERATION
Tide, Nav-tide and Tide Differential
Tide (absolute tide)
Absolute tide can be measured in the ground tracking mode.
10 NM (1 hour trip)
Start of
trip
End of
trip
(Moving at 10 kt on ground)
1
Layer A
(Moving at 3 kt on ground)
2
:Base of
measurement
Fixed
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
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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
End of
trip
2
Layer A
Layer B
3
(Moving)
:Base of measurement
(Moving)
2 kt
5 kt
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
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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)
10 NM (1 hour trip)
Start of
trip
End of
trip
Near-
surface
layer
1
2
3
Layer A
Layer B
:Base of measurement
Assume that the ship and all measuring layers
are moving in the same direction, but at different
speeds.
1 kt
2 kt
5 kt
AP-11
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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)
OR
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
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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.
Actual 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
2.3 Direction
Within ±1% or 0.1 kt, whichever is the larger
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
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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
6.6 Current indicator data
Tide data for 1st layer, tide-measured speed, depths for multi-layers
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
IPX0
IPX2
IPX0
IPX4
IPX8
8.2 Transceiver unit
8.3 Control unit (panel)
8.4 Control unit (rear)
8.5 Junction box
8.6 Transducer
9
ENVIRONMENTAL CONDITIONS
9.1 Temperature
Transducer: -5°C to 35°C
Other units: -15°C to 55°C
Less than 95% (40°C)
9.2 Relative humidity
10 COLOR
10.1 Monitor unit
10.2 Control unit
10.3 Transceiver unit
Panel: N3.0, Cover: 2.5GY5/1.5
Panel: N3-2, Cover: 2.5GY5/1.5
2.5GY5/1.5
SP - 2
E7252S01A
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INDEX
A
F
ALARM menu ............................................3-12
Alarms
Function keys.............................................. 3-3
Fuse replacement ....................................... 4-2
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
G
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
B
Background color.........................................3-8
Bearing mode ..............................................3-4
Bottom search .............................................3-5
Bottom tide tracking.....................................3-5
BRILL key ....................................................1-3
Brilliance......................................................1-3
H
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
C
Control description.......................................1-1
Course plot display
description .............................................2-19
on/off........................................................3-7
overview...................................................1-6
K
Key beep..................................................... 3-5
D
L
Diagnostics
Layer vector on/off ...................................... 3-8
LYR keys ..................................................... 1-8
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
M
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
E
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
N
NAV mode................................................... 3-4
North mark ................................................ 2-19
North-up ...................................................... 3-9
IN-1
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INDEX
P
T
Panel dimmer ..............................................3-6
Panel test.....................................................4-6
POWER switch............................................1-2
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
R
RANGE key ...............................................1-10
S
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
W
Water tracking speed depth........................ 3-5
IN-2
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