Furuno LS-4100 User Manual

5" ECHO SOUNDR

LS-4100

TABLE OF CONTENTS

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

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.

CAUTION

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.

NOTICE

The high quality LCD shows 99.99% of its pixels. The remaining .01% may drop out or brighten, due to the property 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.

WARNING	Name:
To avoid electrical shock, do not	Warning Label
remove cover. No user-serviceable	Type: 02-146-1022
parts inside.
	Code No.: 100-306-050

i

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 transducer 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.

Do not turn on the equipment with the transducer out of water.

The transducer may be damaged.

Observe the following compass safe distances to prevent interference to a magnetic compass:

		Standard	Steering
		compass	compass
	Display	0.4 m	0.3 m
	unit

ii

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.

iii

SYSTEM OVERVIEW

System configuration

GPS Navigator

or

Wind Indicator

:Standard

:Option

:User supply

	DISPLAY UNIT
MODE ESC	LS-4100
MENU

GAIN

RANGE

	MARK	Note: Contact your
		dealer for connection of
ECHO SOUNDER POWER		other equipment.
LS-4100	BRILL

					Water temperature/
Power supply
12 VDC					Speed sensor
	Transducer				ST-02MSB/ST-02PSB

520-5PSD/520-5MSD/520-5PWD/

525-5PWD/525ST-MSD/525ST-PWD

Equipment lists

Standard supply

	Name	Type		Code No.	Qty	Remarks
	Display Unit	LS-4100		—	1
		520-5PSD	000-015-204			Thru-hull mount
	Transducer	520-5MSD	000-015-212			Thru-hull mount
		520-5PWD	000-015-126		1	Transom mount
		525-5PWD	000-146-966
	Triducer (transducer	525ST-MSD	000-015-263			Thru-hull mount
	plus spd/temp sensor)	525ST-PWD	000-015-261			Transom mount
	Installation Materials	• Tapping screw (4 pcs., 5 x 20 SUS304, 000-802-081)
		• Washer head screw B (4 pcs., M4 x 20 SUS304, 000-804-742)
	(CP02-07401)
		• Cable assy. (1 pc., MJ-A7SPF0005-020, 000-139-384, for power and data)
	Spare Parts	Fuse (2 pc., FGMB 1A 125V, Code No. 000-114-805)
	(SP02-04801)
	Template	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
	Water Temperature &	ST-02MSB		000-137-986	Select	Thru-hull type
		ST-02PSB		000-137-987
	Speed Sensor				one
	Inner Hull Kit S	22S0191		000-802-598	1

iv

1. OPERATION

1.1 Control Description

Cursor Pad

Selects menu items; shifts VRM.

MODE

MENU

ESC

GAIN

RANGE

MARK

ECHO SOUNDER POWER

LS-4100 BRILL

Selects display mode.

Opens/closes menu; escapes from current operation.

Adjusts gain.

Selects basic display range.

Outputs L/L position to external equipment;

registers selected position as waypoint.

Long press: Turns power on/off. Momentary press: Adjusts display contrast

and brilliance.

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.

1

5" ECHO SOUNDER

LS-4100

FURUNO ELECTRIC CO., LTD.

ROM : OK RAM : OK

Program No: 0252318-01.**

** Program version no.

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.

1.3Adjusting Display Contrast, Brilliance

1.Press the [POWER/BRILL] key momentarily to show the brilliance/contrast adjustment window.

		Min			Max
CONTST			4
		Min			Max
BRILL
				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.

1.4Choosing 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.

2

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

Picture Advance Speed

Mode

(AUTO or MANUAL) Frequency

Minute

50k

1/1

0.0

0

Marker

40.7° F

Nav Display

(Shows time.

16.2kt

Level Bar

Each bar

is 30 sec.)

Fish

Transmission 20

School

Line

Range Scale

40

Bottom

60

Depth 46.6

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.

50/200	1/1
0.0	0

50 kHz	200 kHz
picture	picture
20	20
40	40
60	60
49.6	80
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.

		Single frequency display
		50k	00	1/1
Zoomed17		0.0
fish	18	Fish		Variable range
school
		school 10		marker
	19	17.0
				This section
			20
				is zoomed
	20
	21		30
25.0	22		40	Zoom marker
Marker-zoom display

Marker-zoom display

3

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.

	50k	00	1/1
27	0.0
			Single
28		10	frequency
			display
29
Bottom		20	Zoom
30			marker
31		30
29.8			Switched with
		40	depth
32

Bottom-zoom display

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

												50k					1/1
				5											0	0				Zoom
	Zoomed
																				marker
	fish			4											10
																				This section
				3
				2											20					is zoomed
											Fish									Single
				1											30					frequency
21.7											school									display
				0											40

Bottom displayed flat

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

Temperature

65.5° F

Odometer

56nm

Trip meter

10.0nm

NAV DATA-1 display

XTE
	0.25nm
1	0.5	0	0.5	1
Speed
	60
	50
	40
30
20			17.2
10	kt
0

NAV DATA-2 display

Sample NAV DATA displays (Default setting)

4

1.5Menu Operating Procedure

The LS-4100 has three menus: Main, System and Installation. Below is the basic menu operating procedure.

1.Press the [MENU/ESC] key to open the main menu. Page 1 or Page 2 of the main menu appears depending on the page last used.

AUTO MODE	Off
SHIFT	:	0ft
PIC. ADVANCE : 1/1
NOISE LIMIT	: Off
CLUTTER	: Off
SIGNAL LEVEL : Off
A-SCOPE	: Off
HUE	: Day
WHITE LINE	: Off
DEEP GAIN	: Low

(1/2)

[MENU]: Exit

Note: SHIFT and CLUTTER are

not available in the auto mode. Page no.

Main menu, page 1

2.Use ▲ or ▼ to select an item. To view page 2 of the main menu, press ▼ until showing the display below.

GOTO WPT		Off
WAYPOINT LIST...
TRIP RESET?
GAIN ADJ 200		: +0
GAIN ADJ 50		: +0
DRAFT		: 0.0ft

ALARM MENU...
SYSTEM MENU...	(2/2)
[MENU]: Exit

Main menu, page 2

3.Press ► to show selected item’s options window. The example shown at the top of the right column is the options window for AUTO MODE.

Off

Cruising

Fishing

Auto mode options window

4.Use ▲ or ▼ to choose option or set numeric value.

5.Press the [MENU/ESC] key to close the menu, or press ◄ to continue menu operation.

1.6 Automatic Operation

How automatic operation works

The automatic function automatically chooses the proper gain, range scale and clutter. It works as follows:

•The range changes automatically to display the bottom echo on the screen.

•The gain is automatically adjusted to display the bottom echo in the darkest tone.

•Clutter (on the menu), which suppresses low-level noise, is automatically adjusted.

Choosing automatic operation

The automatic mode provides two choices of modes: cruising and fishing.

1.Press the [MENU/ESC] key to open the main menu.

2.Press ▲ to choose AUTO MODE from page 1 of the menu.

3.Press ► to open the mode options window.

4.Choose Cruising or Fishing as appropriate.

“Cruising” is for tracking the bottom; “Fishing” is for searching fish schools. Since “Cruising” uses a higher clutter rejection setting than fishing, it is not recommended for fish detection - weak fish echoes may not be displayed. “Fishing” clearly displays weaker echoes.

5

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

The auto mode in use is shown as (Auto-Fishing) or

(Auto-Cruising) at the top left corner on the screen.

Note: When in the auto mode, SHIFT and CLUTTER cannot be adjusted manually.

Range offset

To display the bottom tail in detail in the automatic mode, offset the range as below.

1.Press the [+] or [-] key of the [RANGE] key.

AUTO RANGE OFFSET

+0 ft

Auto range offset window

2.Press the [+] or [-] key of the [RANGE] key again to choose offset desired (range: -100 to +300 ft). Note that if the basic range is changed the offset is returned to “0”.

3.Press the [MENU/ESC] key to finish.

Gain offset

Gain offset lets you override automatic gain adjustment.

1. Press the [GAIN] key.

AUTO GAIN OFFSET

Min ±0 Max

Auto gain offset window

2.Press ◄ or ► key to offset gain (setting range –5 to +5). The gain selected is shown at the top of the screen as

G (Gain) + (or -) XX (offset value).

3.Press the [MENU/ESC] key to finish.

1.7 Manual Operation

Choosing the manual mode

1.Press the [MENU/ESC] key to open the main menu.

2.Press ▲ to choose AUTO MODE from page 1 of the menu.

3.Press ► to show the window.

4.Choose Off with ▲.

5.Press the [MENU/ESC] key to close the menu. MANUAL appears at the top left corner on the screen.

Choosing range

The basic range and range shifting functions used together give you the means to choose the depth you can see on the screen. The basic range can be thought of as providing a “window” into the water column and range shifting as moving the “window” to the desired depth.

Choosing basic range

The basic range may be chosen with the [RANGE] key from the eight ranges shown in the table shown below. (“P/B” in the table means Passi/Braza.) The setting range can be arranged through the SYSTEM menu.

Default ranges

	Unit				Basic Range
		1	2	3	4	5	6	7	8
	meters	5	10	20	40	80	150	200	300
	feet	15	30	60	120	200	400	600	1000
	fathoms	3	5	10	20	40	80	100	150
	hiro*	4	8	15	30	50	100	150	200
	P/B	3	5	10	30	50	100	150	200

*Japanese unit of depth measurement

1.Press the [+] or [-] key of the [RANGE] key and the display should now look something like the one on at the top of the next page.

2.Press the [+] or [-] key of the [RANGE] key again to choose a basic range.

6

1000ft

600ft

400ft

200ft

120ft

60ft

30ft

15ft

Basic ranges (default)

3.Press the [MENU/ESC] key to close the window.

Shifting the range

The basic range may be shifted up or down in the manual mode as follows:

Window can be shifted up and down to select the depth.

Adjusting the gain

The [GAIN] key adjusts the sensitivity of the receiver. Generally, use a higher gain setting for greater depths and a lower setting for shallower waters.

CAUTION

Use the proper gain setting.

Incorrect gain may produce wrong depth indication, possibly resulting in a dangerous situation.

Gain too high Gain proper Gain too low

Examples of proper and improper gain

1.Press the [GAIN] key and the display shown below appears.

Display

Range and display shift concept

1.Press the [MENU/ESC] key to open the main menu.

2.Choose SHIFT from page 1 of the menu.

3.Press ► to open the shift options window.

0ft

Shift window

4.Use ▲ or ▼ to choose amount of shift desired.

5.Press the [MENU/ESC] key to close the window.

Note: The picture may not be displayed if the amount of shift is greater than actual depth.

GAIN

Min Max

200k				2

50k 3

Gain adjustment window

2.When using the dual frequency display, press ▲ or ▼ to choose frequency.

3.Press the [GAIN] key to set. (You may also use ◄ or ►.) Adjust so that a slight amount of noise remains on the screen.

4.Press the [MENU/ESC] key to close the gain adjustment window.

7

1.8 Measuring Depth

The VRM (Variable Range Marker) functions to measure the depth to fish schools, etc.

1.Press ▲ or ▼ to place the VRM on the object which you wish to measure range.

2.Read the VRM depth just above the VRM.

50k 1/1

0

VRM

VRM depth 20

39.8

40

60

49.680

How to measure depth with the VRM

1.9Choosing Picture Advance Speed

The picture advance speed determines how quickly the vertical scan lines run across the screen. When choosing a picture advance speed, keep in mind that a fast advance speed will expand the size of the fish school horizontally on the screen and a slow advance speed will contract it. Note that the picture is not refreshed when picture advancement is stopped. Therefore, use caution when steering the vessel under this condition.

Fast

Slow

Picture and picture advancement speed

1.Press the [MENU/ESC] key to open the main menu.

2.Choose PIC. ADVANCE from page 1 of the menu.

3.Press ► to show the options window.

	Stop		(
1/16
			Slow
1/8
1/4
1/2
	1/1
2/1
			Fast
4/1
			)

Picture advance options window

4.Use ▲ or ▼ to choose picture advance speed desired. The fractions in the options window denote the number of scan lines produced per transmission. For example, 1/8 means one scan line is produced every 8 transmissions. “Stop” freezes the display and it is convenient for taking a photo.

CAUTION

The picture is not refreshed when picture advancement is stopped.

Maneuvering the vessel in this condition may result in a dangerous situation.

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

8

1.10Suppressing Interference

Interference from other acoustic equipment operating nearby or other electronic equipment on your boat may show itself on the display as shown in the figure below.

To suppress interference, do the following:

1.Press the [MENU/ESC] key to open the main menu.

2.Use ▲ or ▼ to choose NOISE LIMIT from page 1 of the menu.

3.Press ► to show the options window.

4.Use ▲ or ▼ to choose the degree of suppression desired; Off, Low, Medium, or High (highest).

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

Interference from	Electrical interference
other sounder

Forms of interference

Turn the noise limiter off when no interference exists, otherwise weak echoes may be missed.

1.11Suppressing Low Level Noise

Low intensity “speckles” may appear over most of screen. This is mainly due to sediment in the water or noise. These can be suppressed by adjusting CLUTTER on the menu. When the automatic mode is on, clutter is automatically rejected. To suppress low level noise in manual sounder operation, do the following:

1.Press the [MENU/ESC] key to open the main menu.

2.Use ▲ or ▼ to choose CLUTTER from page 1 of the menu.

3.Press ► to show the options window.

4.Use ▲ or ▼ to choose the degree of suppression desired; 1, 2, 3 ,4, 5 or

6.The higher the number the greater the suppression.

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

To turn off low-level noise suppression, choose Off at step 4 and then press the [MENU/ESC] key.

Clutter appearance

9