Furuno LS-4100 User manual

5" ECHO SOUNDR
LS-4100

TABLE OF CONTENTS
FOREWORD .....................................iii
SYSTEM OVERVIEW........................iv
1. OPERATION...............................1
1.1 Control Description....................1
1.2 Turning the Power On/Off .........1
1.3 Adjusting Display Contrast,
Brilliance....................................2
1.4 Choosing a Display, Frequency.2
1.5 Menu Operating Procedure.......5
1.6 Automatic Operation .................5
1.7 Manual Operation......................6
1.8 Measuring Depth.......................8
1.9 Choosing Picture Advanced
Speed ........................................8
1.10Suppressing Interference ..........9
1.11 Suppressing Low Level Noise...9
1.12Erasing Weak Echoes.............10
1.13A-scope Display ......................10
1.14Alarms ..................................... 11
1.15Waypoints................................12
1.16Setting Up Nav Data Displays.15
1.17Other Menu Items ...................16
2. SYSTEM & INSTALLATION
MENUS......................................18
2.1 System Menu .......................... 18
3. MAINTENANCE,
TROUBLESHOOTING ..............21
3.1 Maintenance ........................... 21
3.2 Cleaning the Display Unit........ 21
3.3 Transducer Maintenance ........ 21
3.4 Replacing the Fuse ................. 21
3.5 Battery Voltage Alert ............... 21
3.6 Troubleshooting ...................... 22
3.7 Diagnostics ............................. 22
3.8 Test Pattern............................. 23
3.9 Memory Clear ......................... 23
4. INSTALLATION.........................24
4.1 Display Unit............................. 24
4.2 Thru-hull Mount Transducer.... 24
4.3 Transom Mount Transducer.... 26
4.4 Inside-hull Transducer............. 28
4.5 Optional Triducer..................... 29
4.6 Optional Water
Temperature/Speed Sensor .... 33
4.7 Wiring...................................... 34
4.8 IEC 61162-1 Data Sentences.. 35
4.9 Installation Menu..................... 36
SPECIFICATIONS........................SP-1
OUTLINE DRAWING
INTERCONNECTION DIAGRAM

i
SAFETY INSTRUCTIONS
Safety Instructions for the Operator
WARNING
Do not open the equipment.
There are no uer-serviceable parts
inside.
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury
can result.
Immediately turn off the power at the
switchboard if the equipment is
emitting smoke or fire.
Continued use of the equipment can
cause fire or electrical shock. Contact a
FURUNO agent for service.
Do not maneuver the vessel based
on the depth indication alone.
Grounding may result.
Use the proper fuse.
Fuse rating is shown on the equipment.
Use of a wrong fuse can result in
damage to the equipment.
Do no turn on the equipment with the
transducer out of water.
The transducer may be damaged.
The picture is not refreshed when
picture advancement is stopped.
Maneuvering the vessel in this condition
may result in a dangerous situation.
Use the proper gain setting.
Incorrect gain may produce wrong depth
indication, possibly resulting in a
dangerous situation. See "Adjusting the
gain" on page 7 for details.
CAUTION
WARNING
To avoid electrical shock, do not
remove cover. No user-serviceable
parts inside.
Name:
Warning Label
Type: 02-146-1022
Code No.: 100-306-050
The high quality LCD shows 99.99%
of its pixels. The remaining .01% may
drop out or righten, due to the pro-
perty of the LCD, however this is not
a sign of malfunction.
A warning label is attached to the
equipment. Do not remove the label.
If the label is missing or damaged,
contact a FURUNO agent or dealer.
NOTICE

ii
Safety Instructions for the Installer
WARNING
Turn off the power at the switchboard
before beginning the installation.
Fire or electrical shock can result if the
power is left on.
Be sure no water leaks in at the trans-
ducer or sensor mounting location.
Water leakage can sink the vessel. Also
confirm that the transducer and sensor
will not loosen by ship's vibration. The
installer of the equipment is solely
responsible for the proper installation of
the equipment. FURUNO will assume no
responsibility for any damage associated
with improper installation.
Use the specified power cable.
Use of other power cable may result in
fire.
CAUTION
Do not install the equipment where
air bubbles and noise are present.
Performance will be affected.
The following are guidelines for
handling of the transducer cable.
- Do not locate near oils and fuels.
- Locate it in a safe place.
- Do no paint the cable.
The sheath of the cable is made of
chloroprene rubber (or polychloride
vinyl). For this reason do not paint
the cable.
Observe the following compass safe
distances to prevent interference to a
magnetic compass:
Display
unit
Standard Steering
compass compass
0.4 m 0.3 m
Do not turn on the equipment with the
transducer out of water.
The transducer may be damaged.

iii
FOREWORD
A Word to LS-4100
Owners
Congratulations on your choice of the
FURUNO LS-4100 5” Echo Sounder.
We are confident you will see why the
FURUNO name 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.
This equipment is designed and
constructed to meet the rigorous
demands of the marine environment.
However, no machine can perform its
intended function unless operated and
maintained properly. Please carefully
read and follow the recommended
procedures for operation and
maintenance.
We would appreciate hearing from you,
the end-user, about whether we are
achieving our purposes.
Thank you for considering and
purchasing FURUNO equipment.
Features
The FURUNO LS-4100 is a dual
frequency (50 kHz and 200 kHz)
monochrome LCD echo sounder.
Comprised of a display unit and a
transducer, the LS-4100 displays
underwater conditions on a bright 5-inch
monochrome LCD.
The main features of the LS-4100 are
• Bright 5-inch monochrome LCD gives
excellent readability even in broad
daylight.
• Automatic function permits
unattended adjustment of range and
gain. The range scale and gain
automatically change to display the
bottom in the darkest gray tone on the
lower half of the screen.
• User-programmable nav data displays
provide analog and digital nav data.
• Alarms: Bottom, Fish (bottom-lock
and normal), Speed, Water
Temperature and Arrival. (Speed and
arrival alarms require appropriate
sensor; water temperature alarm
requires water temperature data.)
• White line feature helps discriminate
fish lying near the bottom.
• Destination waypoint feature provides
range, bearing, and time-to-go to
destination waypoint. (up to 12
waypoints)
• Waterproof construction permits
installation on open bridge.

iv
SYSTEM OVERVIEW
System configuration
Power supply
12 VDC
DISPLAY UNIT
LS-4100
GPS Navigator
or
Wind Indicator
Transducer
Water temperature/
Speed sensor
ST-02MSB/ST-02PSB
520-5PSD/520-5MSD/520-5PWD/
525-5PWD/525ST-MSD/525ST-PWD
: Standard
: Option
: User supply
Note: Contact your
dealer for connection of
other equipment.
POWER
BRILL
MARK
GAIN
RANGE
ESC
MENU
MODE
LS-4100
ECHO SOUNDER
Equipment lists
Standard supply
Name Type Code No. Qty Remarks
Display Unit LS-4100 — 1
520-5PSD 000-015-204 Thru-hull mount
520-5MSD 000-015-212 Thru-hull mount
520-5PWD 000-015-126
Transducer
525-5PWD 000-146-966
Transom mount
525ST-MSD 000-015-263 Thru-hull mount
Triducer (transducer
plus spd/temp sensor)
525ST-PWD 000-015-261
1
Transom mount
Installation Materials
(CP02-07401)
• Tapping screw (4 pcs., 5 x 20 SUS304, 000-802-081)
• Washer head screw B (4 pcs., M4 x 20 SUS304, 000-804-742)
• Cable assy. (1 pc., MJ-A7SPF0005-020, 000-139-384, for power and data)
Spare Parts
(SP02-04801) Fuse (2 pc., FGMB 1A 125V, Code No. 000-114-805)
Te m pl a t e C22-00301 (000-146-981, for flush mount),
C22-00302 (000-146-982, for bulkhead)
Optional equipment
Name Type Code No. Qty Remarks
Conversion Cable 02S4147 000-141-082 1 For spd/temp sensor
ST-02MSB 000-137-986
Water Temperature &
Speed Sensor ST-02PSB 000-137-987
Select
one Thru-hull type
Inner Hull Kit S 22S0191 000-802-598 1

1
1. OPERATION
1.1 Control Description
Cursor Pad
Selects menu items
shifts VRM.
Opens/closes menu
escapes from current
operation.
Selects display mode.
Adjusts gain.
Selects basic display range.
Long press: Turns power on/off.
Momentary press: Adjusts display contrast
and brilliance.
Outputs L/L position
to external equipment
registers selected position
as waypoint.
POWER
BRILL
MARK
GAIN
RANGE
ESC
MENU
MODE
LS-4100
ECHO SOUNDER
Display unit
How to remove the hard cover
Place your thumbs at the center of the
cover, and then lift the cover while
pressing it with your thumbs.
1.2 Power On/Off
Press the [POWER/BRILL] key more
than one second to turn on the power.
The unit beeps, the startup screen
appears, and then the equipment
checks the ROM and RAM for proper
operation and displays program number.
(If “NG” (No Good) appears, try to press
any key except the [POWER/BRILL] key
to start operation. However, the
equipment may not work properly.
Contact your dealer.) You may
press any key after the completion of
the equipment check to start operation
sooner.

2
** Program version no.
ROM : OK RAM : OK
Program No: 0252318-01.**
5" ECHO SOUNDER
LS-4100
FURUNO ELECTRIC CO., LTD.
Start-up screen
To turn off the power, press and hold
down the [POWER/BRILL] key until the
screen goes blank. The time remaining
until power is turned off is counted down
on the screen.
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.
1.3 Adjusting Display
Contrast, Brilliance
1. Press the [POWER/BRILL] key
momentarily to show the
brilliance/contrast adjustment
window.
CONTST 4
Min Max
BRILL
Min Max
4
Brilliance/contrast adjustment window
2. For contrast, press the
[POWER/BRILL] key to adjust
contrast cyclically. (You may also use
◄or ►on the Cursor Pad to adjust
contrast.) (Adjustable range: 0 to 9)
3. To adjust brilliance, use ▲or ▼.
(Adjustable range: 0 to 4)
4. Press the [MENU/ESC] key to close
the brilliance/contrast adjustment
window.
Note 1: When the power is reapplied
after turning off the equipment with
minimum brilliance, minimum brilliance
will be set after the equipment goes
through its initial start up. (The start up
screen appears with the maximum
brilliance.) Adjust the brilliance as
necessary.
Note 2: Setting windows other than
those on menus are erased if there is
no operation within about seven
seconds.
1.4 Choosing a Display,
Frequency
Seven displays are available: single
frequency (50 or 200 kHz), dual
frequency, marker-zoom, bottom-zoom,
bottom-lock, and nav data (two
displays).
1. Press the [MODE] key to show the
mode selection window.
MODE
SINGLE FREQ.
DUAL FREQ.
MARKER ZOOM
BOTTOM ZOOM
BOTTOM LOCK
NAV DATA-1
NAV DATA-2
50kHz 200kHz
Mode selection window
2. Press the [MODE] key again within
seven seconds to choose a mode.
You may also choose a mode with ▲
or ▼.
3. For modes other than DUAL FREQ,
choose frequency. Press ◄for 50
kHz or ►for 200 kHz.
4. Press the [MENU/ESC] key to close
the window.

3
Single frequency display
50 kHz
The sounder uses ultrasonic signals to
detect bottom conditions. The lower the
frequency of the signal, the wider the
detection area. Therefore, the 50 kHz
frequency is useful for general detection
and judging bottom condition.
200 kHz
The higher the frequency of the
ultrasonic signal the better the
resolution. For this reason the 200 kHz
frequency is ideal for detailed
observation of fish schools.
50 kHz
200 kHz
Frequency and coverage area
46.6
Fish
School
Bottom
0
20
40
50k 1/1
0.0
Level Bar
Depth
Frequency
Picture Advance Speed
Range Scale
Mode
(AUTO or MANUAL)
40.7°F
16.2kt
Nav Display
Minute
Marker
(Shows time.
Each bar
is 30 sec.)
Transmission
Line
60
Typical 50 kHz display
Dual frequency display
The 50 kHz picture appears on the left;
the 200 kHz picture on the right. This
display is useful for comparing the same
picture with two different transmitting
frequencies.
50 kHz 200 kHz
picture picture
49.6
0.0
50/200 1/1
0
20
40
60
80
20
40
60
80
Dual frequency display
Marker-zoom display
This mode expands chosen area of the
normal picture to full vertical size of the
screen on the left-half window. You may
specify the portion to expand by
operating the VRM (Variable Range
Marker), which you can shift with ▲or
▼. The area between the VRM and
zoom range marker is expanded.
Zoomed
fish
school
Single frequency display
Variable range
marker
This section
is zoomed
Zoom marker
Marker-zoom display
17.0
25.0
0
Fish
school
0
40
10
20
30
0.0
50k 1/1
21
20
19
18
17
22
Marker-zoom display

4
Bottom-zoom display
This mode expands bottom and bottom
fish in the range width set with ZOOM
RANGE of the SYSTEM menu. This
mode is useful for determining bottom
contour. When the bottom depth
increases, the display shift to keep the
bottom echo at the lower part of the
screen.
0
Bottom-zoom display
29.8
Bottom
0
40
10
20
30
32
31
30
29
28
27
Switched with
depth
Single
frequency
display
Zoom
marker
0.0
50k 1/1
Bottom-zoom display
Bottom-lock display
The bottom-lock display provides a
normal picture on the right half of the
screen and a 15 feet (5 meter)* wide
layer in contact with the bottom is
expanded onto the left half of the screen.
This mode is useful for detecting bottom
fish.
* = Operator selectable
Bottom-lock display
Zoom
marker
Zoomed
fish
This section
is zoomed
21.7
0
Single
frequency
display
Fish
school
0
40
Bottom displayed flat
10
20
30
0
1
2
3
4
5
50k 1/1
Bottom-lock display
Nav data displays
The nav data displays appear on the left
of the screen. Data other than depth
requires appropriate sensor.
You can display between two and four
items in a nav data display and choose
the item and order to display them. See
paragraph 1.16 to choose the items to
display, “NAV DATA-1” and “NAV
DATA-2” in paragraph 2.1 to choose the
number of items to display.
Depth
69.4m
Trip meter
10.0nm
Odometer
56nm
NAV DATA- display
NAV DATA-2 display
Temperature
65.5°F
17.2
0.5 0 0.5
0.25nm
XTE
Speed
kt
20
50
40
60
30
10
0
Sample NAV DATA displays
(Default setting)