Onwa KES-700 User manual

KES-700
KES-700
OPERATOR`S MANUAL
NAVIGATIONAL ECHO SOUNDER

The ONWA KES-700 is comprised of display unit and transducer unit.
Echo sounding data is displayed on the bright 10.4-inch color TFT (Thin Film Transistor)
LCD display.
1. Complies with the IMO and ISO standards MSC.74(69) Annex 4 and ISO9875.
2. Cost-effective; no paper, no consumables; high accuracy and high reliability - no
rotating gears and belts as in the paper echo sounders
3. High-contrast 10.4-inch color LCD display featuring a wide viewing angle and
adjustable brightness.
4. Wide variety of modes with never-get-lost default position.
5. Automatic function permits unattended adjustment of range, gain, and pulselength. The
range scale and gain automatically change to display the bottom.
6. Position, course, speed, time are repeated from the external devices.
7. Alarms: shallow water, bottom lost, power drop.
The main features of the FE-700 are

TERMINAL BOX
DS-802
DIGITAL DEPTH IND ICATOR
FE-720
IEC 61162-1
IEC 61162-1
IEC 61162-1
EIA-2 3 2C
CONTACT CLOSURE
TRANSDUCE R SWITCH BOX
E X- 8
Navigation Device
Navigation Device
Personal Computer
Alarm Unit
Ship s mains
100-115 VAC/200-230 VAC
or
24 VDC
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DISPLAY UNIT
KES-700
DISTRIBUTION
BOX
KES-700
JB JB JB
TRANSDUCER
JUNCTION BOX
JIS F8821-1
MATCHING BO X MB-502(for 50B-6 B)
MB-504(for 200B-8B)
: Standard Supply
: Optional Supply
: Local Supply
PRINCIPLE OF OPERATION
The FE-700 uses ultrasonic pulses to detect the seabed and other underwater objects. The
display unit contains all basic electric circuits and logic processor. Electrical pulses are
converted into acoustical energy in the transducer fitted on the ship s hull. The processor
measures the time of pulses travelling between the seabed and transducer and displays the
water depths in the graphical form or other forms.
The transducers have a specific beam width with respect to their working frequency,
50 kHz or 200 kHz. The high frequency has a narrow beamwidth and is immune to aeration
when the ship is going astern or in rough weather. The low frequency has a wide
beamwidth and more powerful sounding capability.
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1.
1.1
×
DISPLAY UNIT
Graphical Display 10.4-inch color TFT LCD, 320 x 234 pixels
1.2 Echo Colors 8 colors or 8 level monochrome
1.3 Display Area: 213.2mm 160.4mm
1.4 Basic Display Range
Unit
Range
1 2 3 4 5 6 7 8
Meters
Feet
Fathoms
5 10 20 40 100 200 400 800
15 30 60 120 300 600 1500 2500
3 5 10 20 50 100 200 400
*Default settings; it could be customized for use w/o range 3 and 6.
1.5 Accuracy 2.5% on any range
1.6 Minimum Range 0.5 m (200 kHz), 2.0 m (50 kHz)
1.7 Draft -10 to 30 m in 0.1 m steps, default 0 m
1.8 Pulse Repetition Rate (PRR)
±
Depth (m) P/L ms（ ） PRR (pulse/min)
5 10 2 0， ， 0.25 750
0.38 37540
100 1.00 150
200 2.00 75
400 800，3.60 42

8004002001004020105
Range (m)
Interval (min) 1.8 8 20 30
1.9 Display Mode
NAV : Basic echo presentation with the depth below transducer
DBS : Echo presentation with the depth below sea surface (or keel)
HISTRY : Historical Echo presentation with the depth
LOGBOOK : Echo presentation with the pop-up table showing
Time, Depth and L/L* data memorized at preset interval
OS DATA : Echo presentation with the pop-up table of present
navigational data; L/L*, course*, speed*, time, depth
HELP : Echo presentation with the help menu and note
MENU : Echo presentation with the user menu
1.10 Picture Advance Speed
Slow mode 15 minutes or more
Fast mode Picture advance range
1.11 User Setting
Gain, Range, Alarm, Draft, Brilliance, Dimmer, Color, Auto
1.12 Auto Set Mode
Gain, range and clutter will be automatically adjusted.
1.13 Alarm
Shallow water (default 20 m), Bottom lost, Power drop
1.14 Logbook Display
Depth, Internal clock, L/L* 1 hour at 5 sec Interval, 12 hours at
1 minute interval and 24 hours at 2 minutes interval.
*: External navigational sensor required.
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2.TRANSCEIVER CHARACTERISTICS (BUILT IN DISPLAY UNIT)
3.DIGITAL DEPTH INDICATOR
4.TRANSDUCER TYPE AND BEAMWIDTH
5.INTERFACE
2.1 Transmit Frequency 50 kHz or 200 kHz
2.2 Output Power 600 Wrms
3.1 Display 10.4-inch monochrome LCD
3.2 Depth Indication
**.* m (less than 100m)
**** m (100 m or more)
3.3 Power supply 24 VDC, 150mA
3.4 Coating color Panel: N3.0, Chassis: 2.5GY5/1.5
3.5 Waterproofing IPX5
4.1 50B-6B (50 kHz): 35
4.2 200B-8B (200 kHz): 6
5.1 Serial Input Data IEC61162-1, current loop; 1 port
RMA: L/L, ground track speed, Track
RMC: L/L(GPS), ground track speed, Track, Time
GLL: L/L
GGA: L/L
VTG: Ground track speed,
Track (True/Magnetic selected on menu)
ZDA: Time
5.2 Serial Output Data IEC61162-1, output period:1 sec.;3 outputs/1 port
SDDPT: Depth (m), Draft (m)
SDDBT: Depth (ft, m, fa) below transducer
SDDBS: Depth (ft, m, fa) below sea surface
°
°

5.3 Serial I/O Data RS-232C, 1 port
Output Depth, clock, L/L, ship s speed, course
SP - 3 E2366S01Q
Input Control command for PC
5.4 Alarm (Depth, Power) Contact closure signal, normal open or normal close,
250 VAC/ 200 VDC, 3A max.
24 VDC (-10%, +30%): 20W or 100-115/200-230 VAC,
1 phase, 50/60Hz: 20VA.
7.1 Temperature -15 to +55
7.2 Relative Humidity 93% or less at 40
7.3 Waterproofing Display Unit: IEC IPX5
Distribution Box: IEC IPX2
Matching Box: IEC IPX2
7.4 EMC Emission IEC 60945 Ver.3
7.5 Category of Equipment Units
Display Unit protected from the weather
Distribution Box protected from the weather
Matching Box protected from the weather
Transducer Submerged area
8.1 Display Unit Panel: N3.0, Chassis: 2.5GY5/1.5
8.2 Distribution Box/ Matching Box
2.5GY5/1.5
6.POWER SUPPLY
7.ENVIRONMENTAL CONDITION
8.COATING COLOR
℃ ℃
℃
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1.1 Control Description
All operation of the KES-700 is carried out with the controls on the front panel of the
display unit. Rotary controls respond immediately to your command but some touch keys
require the successive operation.
Adjusts display brilliance
and tone.
Adjusts drafts
1. Raises or lowers setting
2.Sets condition on menu.
3.Selects page on Text display, etc.
Selects display range.
Selects display mode.
Adjusts panel dimmer
Turns automatic mode
on or off. (Gain, range
and clutter automatically
adjusted.)
Sets alarms or mutes
audible alarms.
Selects presentation color.
Selects item on menu.
Selects display gain.
Turns power on or off.
DRAFT MUTE
ALARM
DIM BRILL
AUTO COLOR
RAN GE
1
2
3
456
7
8
GA IN
MO DE

1.2 Indications, Markers
Display mdoe
Gain setting
Range setting
Auto mode
Transducer in use (When using
transducer switch box.)
Alarm setting
Range scale
Depth
Depth unit
Explanation of depth
(Below transducer, or below surface)

1.3
" " logo. After a few
seconds
" "
Turning On/Off
Press the key. The unit beeps
and display ONWA
starts up with the last-used display
mode.
When lat/long data input error occurs,
EPFS ERROR appears on the screen.
(EPFS: Electronic Position-Fixing
System such as GPS receiver)
Press the key.
[POWER]
Note
[POWER]
2. Select a mode with the MODE Selector.
The position of the selector is
recommended for general use. Display
color is amber by default but may be
customized. The unit of measurement is
meters. You can freely select another
mode at any time.
:
When two transducers are installed,
make sure which transducer is used.
NAV
3. Turning off
Note:
:
1.4 Tone and Brilliance
1.5 Panel Dimmer
1. Press the BRILL key. The tone and
brilliance setting window appears.
2. Press the [+] or [-] key for desired tone
(in reality, Contrast).
3. Press the [ ] or [ ] key for desired
brilliance. Pressing the BRILL key also
changes the brilliance from minimum to
maximum and vice-versa.
Tone or brilliance must be adjusted
within 10 seconds after pressing the
BRILL key. Otherwise the tone and
brilliance window will be erased.
1. Press the DIM key. The panel dimmer
setting window appears.
2. Press the [+] or [-] key for desired
illumination of the control panel. Pressing
DIM key also changes the illumination
level.
Note:
▲
▲

1.6 Display Mode
The Mode Selector choose the display mode
among NAV, DBS (depth below surface),
HISTORY, LOGBOOK, OS DATA, HELP
and MENU.
The depth from the transducer to the seabed
(bottom clearance) is shown on the screen.
Note BELOW TRANSDUCER appears
at the bottom of the screen in this mode.
Default is,
Color: Amber
Range: Automatic range switching
Window: 15 minutes
Shallow depth alarm: 20 m
These parameters can be customized
to your preference and the last setting is used
at a next switch-on. This is true on all other
modes.
The Depth Below Surface mode provides a
draft-adjusted depth reading and will be
useful inreferencing to the nautical chart.
The draft should be adjusted by the DRAFT
key according to the actual draft value. If
you find any difficulty to check for the draft
value, use the NAV mode.
When the DBS mode is selected, the message
Confirm and set ship s draft to use DBS
mode appears. Confirm ship's draft and set
it by referring to section 1.12.
1.6.1 NAV mode
NOTE
1.6.2 DBS mode
:
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"
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BELOW KEEL (when the draft setting is
-10.0 to -0.1) or BELOW SURFACE (when
the draft setting is 0 to 30.0) appears at the
bottom of the display and the draft value
appears at the upper right-hand corner in the
DBS mode.
This mode provides a mix of Contour and
Strata displays. The Contour display can be
scrolled over the past 24 h while the right
side Strata display (layers of different colors
according to reverberation strengths) shows
the latest sounding for 5 minutes.
Pressing the [+] or [-] key moves the Contour
display forwards or backwards, respectively.
If the range scale for both the Contour and
Strata display must be the same. If they are
not, the message OUT OF RANGE appears.
The update of the contour data may take max.
one minute. Wait for one minute to display
accurate contour if you change the range scale.
1.6.3 HISTORY mode
" "
CAUTION
!
DBS is not a water clearance
below keel.
Do not use this mode in shallow
waters to avoid grounding.

1.6.4 LOGBOOK mode
The LOGBOOK shows time, depth and
own ship position in tabular form in a
pop-up window. The logging is selected
with the INTERVAL option on the menu
among 5 s, 1 min and 2 min.
(See section 2.6.)
There are 60 pages and the total memory
capacity is 720 points. Page 60/60 is the
latest data and 1/60 is the oldest data.
Pressing [-] or [+] key changes the pages.
There are two kinds of OS DATA displays:
DATA 1 and DATA 2, as selected on the
system menu. DATA 1 is the default setting,
and it is shown in the figure above.
The DATA 2 display is as below.
When lat/long data input error occurs
in the DATA 1 mode, .EPFS. ERROR appears
on the screen. (EPFS: Electronic Position-
Fixing System such as GPS receiver)
Note:
1.6.5 OS DATA mode
This display mode indicates own ship
position, GPS-derived course and speed,
and time and depth in digital form. You can
read the data of your particular interest in
large characters. The screen continues to
display the sounding data in the background.
Part of graphical indication is visible to the
right of data slips.

Enlarging data of interest
You can enlarge one of the data indications
as follows:
1. Press the [ ] or [ ] key to select the
data you want to enlarge. Current section
is circumscribed with the blue cursor. For
example, select the depth cell.
2. Press the [+] key.
▲ ▼
3. To return to the original display, press
the [-] key.
This mode provides information about keys.
Press desired key to obtain the corresponding
information. The example below shows help
information for MUTE ALARM.
1.6.6 HELP display
1.6.7 MENU display
The menu provides functions which normally
do not require frequent adjustment. For
details see Chapter 2.
Press the [ key, and the following appears.▼]

1.8 Gain Control
The GAIN Control adjusts the sensitivity
of the receiver. The AUTO mode provides
automatic adjustment and you are normally
not required to adjust it. Current setting is
shown at the upper left-hand corner. Adjust
the GAIN Control and the following
window appears.
Adjust the GAIN Control so that a slight
amount of noise remains on the screen.
Generally, use a higher gain setting for
greater depths and a lower setting for
shallower waters. Adjusting range is
between 0.0 and 10.0 in 0.5 steps.
1.9 Automatic Operation
The automatic function automatically
selects the proper gain, range scale and
clutter level according to depth. It works
as follows:
●The range changes automatically to
locate the bottom on the lower half of
the screen. It jumps to one step
shallower range when bottom echoes
reach a halfway point of the full scale
from top and to one step deeper range
when they come to the lower edge of
the scale.
●The gain is automatically adjusted to
display the seabed in specified color.
●Clutter level (on the menu), which
works as a threshold control to suppress
overall noise, is automatically adjusted.
Note: The AUTO MODE is cancelled
whenever the range or the gain is changed.
1. Press the key. The AUTO mode
window appears.
2. Press the [+] key to select ON or the [-]
key to select OFF.
How to enable/disable automatic
operation
AUTO
1.7 Range Scale
If the depth goes out of the correct display
area, increase or decrease the range until the
seabed appears near the center of the screen.
Adjust the Range Control, and current range
selection is shown in the range display
window.
In the AUTO mode, the range scale is
automatically adjusted. See section 1.9 for
details.

Monochrome (amber) is the default setting.
The Strata display contains multiple colors
depending on the reflectivity from
underwater objects of the sounding pulses.
Red is strongest, followed by brown, orange,
yellow, blue, and light blue.
1.11 Shallow Depth Alarm
The shallow depth alarm sounds when the
seabed is shallower than the preset depth.
The default in the NAV position is 20 m.
You can adjust the alarm depth as below:
Activating/deactivating the alarm
1. Press the MUTE ALARM key to display
the depth alarm setting window.
2. Press the [+] or [-] key to change setting
depth. The setting is shown digitally at
the top of the screen and graphically key
the depth alarm line.
When the alarm is activated, the message
"SHALLOW DEPTH ALARM" is displayed
at the center on the screen.
Note: When the draft setting is 10.0 to–
–0.1 in the DBS mode, the shallow depth
alarm setting will show a minus value. At
this time, the alarm setting value indication
shows "****" and the alarm function is
disabled.
Acknowledging the alarm
You can silence the alarm by pressing the
MUTE ALARM key. The message
" "SHALLOW DEPTH ALARM moves to
upper side of the screen.
1.10 Picture Colors
1. Press the COLOR key. The following
window appears.
2. Press the [+] or [-] key to select a number,
referring to the table below. (You can see
the result of your selection on the display.)
Bac kground
Monochrome, 8 intensities1
2
3
4
5
6
7
8
9
Blue
Black
White
Blue
7 colors (Strata)
6 colors
Seabed Others marks
Black
White
Black
White
Red in fill
Red in fill
Red in fill
Yellow infill
7 colors (Strata)
6 colors
6 colors
6 colors
6 colors
6 colors
Yellow infill
Yellow infill

1.12 Draft
It is necessary to set the draft to use the DBS
display mode, which shows depth below
surface.
1. Select DBS with the MODE control.
Confirm and set ships draft to use DBS"
mode. appears."
2. Press the DRAFT key to display the draft
setting window.
3. Press the [+] key to increase the setting
depth and [-] key to decrease it. The
setting depth is -10 to 30 m in steps of
The above window disappears in 10 seconds.
The draft setting is displayed at the upper
right corner and the range scale is shifted
according to the draft setting.
0.1 m.

2.1 Menu Overview
The menu has several functions for
advanced operation.
1. Select MENU with the MODE Selector.
2. Press the [ ] or [ ] key to select menu
item. As you operate the [ ] or [ ] key,
the selected item and its current setting
appear in reverse video.
3. Press the [-] or [+] key to select option
desired.
4. Set the MODE Selector in another
position to close the menu.
▲ ▼
▲ ▼
2.2 Suppressing Low Level Noise
2.3 Suppressing Interference
Light-blue dots may appear overall screen.
This is mainly due to dirty water or noise.
This noise can be suppressed by adjusting
CLUTTER (in reality, Threshold of the
amplifier).
When the automatic mode is on, the
suppression setting is automatically adjusted.
For manual override, do the following:
1. Select MENU with the MODE Selector.
2. Select CLUTTER by pressing the [ ] key.
3. Press the [-] or [+] key to select clutter
rejection level desired. The higher the
number the higher the degree of suppression.
Note that weak echoes may not be
displayed when the clutter circuit is on.
Interference from other acoustic equipment
operating nearby or other electronic
equipment on your boat may show itself on
the display.
To suppress interference, do the following:
1. Select MENU with the MODE Selector.
2. Select INTERFERENCE REJECT by
pressing the [ ] or [ ] key.
3. Press the [-] or [+] key to select degree of
suppression desired; OFF, IR1, IR2 or IR3.
The higher the number the greater the
degree of suppression.
Note that oversuppression will weaken the
sensitivity.
▲
▲ ▼

The picture advance speed determines how
quickly the vertical scan lines run across
the screen.
1. Select MENU with the MODE Selector.
2. Select PICTURE ADVANCE by pressing
the [ ] or [ ] key.
3. Press the [+] or [-] key to select speed
FAST or SLOW, respectively. The
advance speed varies with the range scale
and the viewing length of 15-16 minutes
is available on all ranges (IMO
requirements).
Range (m) Display window (minute)
5, 10, 20 1.8/15 (FAST/SLOW)
40,100 8/15
200 15/20
400, 800 15/30
The future trend of the seabed depths can
be predicted over a specified period of
time (See page 13). The trend index is set
with the item TREND and appears at the
top left corner. The default setting is ON.
is inclination angle of bottom.
2.4 Picture Advance
2.5 Trend
▲ ▼
θ
-2 2 2 < 10 10 < 45 45 < 90°≤θ≤ ° °θ≤ ° °θ≤ ° °θ≤ °
-2 > -10 °θ≥ ° -10 > -45°θ≥ ° -45 > -90°θ≥ °
2.6 Interval
The interval for sampling data for the
LOGBOOK and HISTORY modes can be set
with INTERVAL, among 5 s, 1 min and 2 min.
The default setting is 1 min.
In this example, the setting of INTERVAL is
1 minute. That is, the depth and lat/long data
are displayed at 1 minute intervals.

3.1 System Menu
The system menu should be set just after
installation and is not always necessary to
be adjusted. If you change any items of the
system menu or even if you open the system
menu, the sounding picture will be cleared.
There are three menus: 1,2,and 3.
1. Select MENU with the MODE Selector.
2. Press the [ ] key several times to display▼
following window.
3. Select YES by pressing the [+] key.
Confirmation message
ARE YOU SURE? Appears." "
4. Press the [+] key again.
The system menu 1 appears.
5. With the cursor selecting MENU SELECT,
operate the [-] or [+] key to select system
menu desired; 1, 2 or 3.
Press [+] at menu 1.
Press [-] at menu 2.
▼
▼