L-3 LAZ 5100 User Manual

communications

ELAC Nautik

NAVIGATION ECHOSOUNDER

LAZ 5100

Technical Handbook

TH 52 603 8001 E

communications

ELAC Nautik

NAVIGATION ECHOSOUNDER

LAZ 5100

Technical Handbook

TH 52 603 8001 E

Edition: February 2003

L-3 Communications ELAC Nautik GmbH

Neufeldtstraße D-24118 Kiel, Germany

Telephone: ++49 431 883 - 0 Telefax: ++49 431 883 496

Email: marketing@elac-nautik.com / support@elac-nautik.com

http:\\www.elac-nautik.com

The reproduction, distribution and utilisation of this document as well as the communication of this

contents to others without explicit authorisation is prohibited. Offenders will be held liable for the

design.

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Declaration of Conformity

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Page II

EG- Baumusterprüfbescheinigung

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EG- Baumusterprüfbescheinigung

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EG- Baumusterprüfbescheinigung

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EG- Baumusterprüfbescheinigung

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Contents

Chapter Title Page

1 GENERAL 1-1

1.1 FUNDAMENTAL SAFETY INSTRUCTIONS 1-1

2 GENERAL INSTALLATION INSTRUCTION FOR ECHOSOUNDERS 2-1

2.1 TRANSDUCER INSTALLATION 2-1

2.1.1 CABLE LENGTH, OPERATING FREQUENCY 2-1

2.1.2 CABLING, CABLE LOCATION, CABLE SPECIFICATION 2-3

2.1.3 TRANSDUCER CABLE SPECIFICATION 2-3

2.1.4 INTERFACES 2-3

2.1.5 INSTALLATION REPORT; SERVICE REQUEST 2-4

3 TECHNICAL DESCRIPTION 3-1

3.1 GENERAL 3-1

3.2 SYSTEM CONFIGURATION 3-2

3.2.1 DISPLAY AND CONTROL UNIT 3-2

3.2.2 TRANSDUCER CONNECTION BOX 3-3

3.2.3 TRANSDUCER 3-3

3.3 OPTIONAL EQUIPMENT 3-3

3.3.1 DIGITAL SLAVE DISPLAY(S) 3-5

3.3.2 PRINTER 3-5

3.3.3 CONNECTION BOX 3-5

3.3.4 TRANSDUCER OPTIONS 3-6

3.3.5 SWITCH BOX 3-6

3.4 TECHNICAL DATA 3-7

3.4.1 ELECTROMAGNETIC COMPATIBILITY 3-9

3.5 INTERFACES 3-10

3.5.1 DESCRIPTION OF NMEA INTERFACES 3-11

3.5.2 OTHER INTERFACES 3-15

4 OPERATING INSTRUCTIONS 4-1

4.1 SWITCHING THE SYSTEM ON/OFF 4-1

4.2 BRIEF EXPLANATION OF CONTROLS 4-1

4.3 DISPLAY AREA 4-3

4.3.1 SINGLE CHANNEL DISPLAY 4-3

4.3.2 2 CHANNEL DISPLAY 4-5

4.3.3 WARNING FIELDS 4-6

4.4 ALTERING SYSTEM PARAMETERS AND SETTINGS 4-7

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4.4.1 GAIN, RANGE AND DIM SETTINGS 4-7

4.4.2 GENERAL INFORMATION REGARDING MENUS 4-9

4.4.3 ALTERING SYSTEM SETTINGS/PARAMETERS WITHIN A MENU 4-10

4.5 MENU DESCRIPTION 4-16

4.5.1 THE ALARM MENU 4-16

4.5.2 THE PARAMETER MENU 4-18

4.5.3 THE LOG DATA MENU 4-21

4.5.4 THE SYSTEM SET-UP MENU 4-26

5 INSTALLATION, CARE AND MAINTENANCE 5-1

5.1 INSTALLATION 5-1

5.1.1 DISTORTION LEVEL TEST 5-3

5.1.2 INITIAL SYSTEM SET-UP 5-6

5.1.3 POWER ADJUST 5-13

5.2 CARE AND MAINTENANCE 5-13

5.3 SPARE PARTS LIST 5-15

6 DRAWINGS 6-1

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1 GENERAL

1.1 FUNDAMENTAL SAFETY INSTRUCTIONS

General remark to hydroacoustic equipment LAZ 5100

Even with a carefully selected transducer position and proper installation, the function of hydroacoustic equipment can be impaired by turbulence, acoustic noise or aerated water.

As main causes, the following can be stated:

− Propeller(s) running reversed;

− Thruster(s) in operation, especially at low speed ahead;

− Engine noise, transferred to the transducer either by the hull structure or through the water, the

latter especially as bottom- reflection in shallow water.

− Losing sonar contact with the water at extremely bad weather, as a result of violent pitching.

− Hot water discharges from power plants;

− Rising cold water in several sea areas.

The list above is not complete; we will be pleased to assist with further information on request, see also chapter 5.1 Installation.

The LAZ 5100 echosounder has been built in accordance with state of the art standards and recognised safety regulations. Nevertheless, it may constitute a risk to life or limb of the user and or third parties, or cause damage to the vessel and or other material property if the following rules are not complied with.

The LAZ 5100 Echosounder must only be used in a technically flawless condition in accordance with it's designated use and the instructions contained within this Technical Handbook and only by safety conscious persons who are fully aware of the risks involved in operating such a system.

The LAZ 5100 Echosounder is designed exclusively for use as a navigational echosounder. Using the system for purposes other than this is considered contrary to it's designated use. The manufacturer can not be held responsible for any damage resulting from such misuse. The risk of such misuse lies entirely with the user.

Personnel entrusted with operating the system must have read the Technical Handbook, in particular the section on safety measures before and during operation. Reading these instructions after starting the system is too late. This applies especially to persons who only work with the system occasionally, e.g. during setting up or maintenance.

Always observe the maintenance/inspection intervals laid down in this Technical Handbook.

Use only spare parts authorised by the manufacturer and never replace defective fuses by those of any other rating than specified.

Switch the system OFF immediately if trouble occurs with the electrical system.

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Work on the system must only be carried out by a qualified technician or a specially trained person working under the supervision of such a technician. Electrical engineering regulations must be observed at all times.

Observe all safety instructions and warnings for operating and maintenance attached to the system. Ensure that such safety instructions and warnings are always complete, visible and perfectly legible.

Never make any modifications, additions or conversions to the system without the manufacturers full approval.

If the system is shut down for maintenance or repair, it must be secured against inadvertent switching ON by isolating the system from the mains power supply and attaching a sign to the front plate of the display and control unit stating that the unit must not be switched ON because maintenance or repair work is being carried out.

Always check tighten any screwed connections, e.g. plugs, sockets and terminals, which may have been loosened during maintenance or repair work.

Always dispose of replaced parts in accordance with local environmental regulations.

Check the system regularly for defective cables, connections etc.

Alterations within the SERVICES menu must only be made by trained persons. Altering setting within this menu may lead to incorrect depth readings which in turn may lead to loss of life or limb.

Service technicians opening the Display and Control unit for repair purposes must observe the tightening torque of the capped nut and washer, see items 17, 27 in drawing: ECHOLOT LAZ 5100-01 to 10, no. 52 590 8001 to 8010 in chapter 6 "DRAWINGS" .

Echosounding Systems and remote indicators which detect and display the water depth from a single momentary value per transmission pulse, e.g. digital and pointer displays, can display false readings over a period of time. This is primarily valid in shallow water areas. For this reason, water depths displayed in this manner must be compared with the graphic presentation at such intervals as to guarantee the ship's safety.

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2 GENERAL INSTALLATION INSTRUCTION FOR ECHOSOUNDERS

2.1 TRANSDUCER INSTALLATION

The performance of an echosounder is limited by the acoustical propagation of sound in water. Mainly this is influenced by the transducer mounting place, the operational frequency and the transducer efficiency.

The transducer mounting place is to select in such a way, that the transducer surface is free of air bubbles and turbulence. Air bubbles and turbulence will reflect the sound energy so that no echoes from the bottom will return.

That's why transducers in general have to be installed in ship's bow.

If the ship has a bow thruster, the transducer has to be mounted ahead of it. Otherwise the turbulence caused by the thruster hole will inhibit echosounding operation.

While the bow thruster is operating, no echosounding is possible because of the propeller rotation. On ships with bulbs the transducer must be mounted as far ahead as possible.

Transducers mounted in ship's aft normally are limited in function during travelling, because this area is very noisy. Due to engine noise, propeller rotation and air bubbles, the transducers are only efficient during low speed travelling.

An indication for that is the disappearing of echoes, digital reading will indicate surface reverberation ( 1-1.5 m ) or “?”.

While sailing only the front transducer should be used.

2.1.1 CABLE LENGTH, OPERATING FREQUENCY

Both the operating frequency and the length of cable between the echosounder and the transducer influence the performance of echosounding.

General rules are:

At lower frequencies the influence of air bubbles and turbulence decreases, increased depth measurements are possible, energy loss at longer cable length is minimised.

Higher frequencies are less sensitive against radiated water noise caused by the ships engine and propeller rotation.

Following tables give information about echosounding performance depending on various parameters.

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Table of maximum measurable water depth, depending on frequency, transducer type, cable length.

Transducer

Type

LSE 132 30 kHz Elac Nautik 450 Watt 600 m 1200 m

LSE 297 50 kHz Elac Nautik 250 Watt 400 m 600 m

LSE 133 50 kHz Elac Nautik 450 Watt 600 m 1100 m

SW 6016 100 kHz STN Atlas 200 Watt 150 m 300 – 350 m

LSE 148 100 kHz Elac Nautik 450 Watt 200 m 350 – 400 m

LSE 313 200 kHz Elac Nautik 250 Watt 150 m 250 – 300 m

LSE 135 200 kHz Elac Nautik 250 Watt 150 m 250 – 300 m

The depth values can only be reached with limited cable length and an undisturbed acoustic and electric receiver channel.

For cable length longer than mentioned in the table the electrical power of the echosounder has to be increased according to manufacturer's release.

Table 1 and 2 show as an example cable loss depending on frequency and cable length and the corresponding possible depth measurements for the frequencies 50 kHz and 100 kHz.

Frequency Manufacturer Electrical

Power

Maximum Cable

Length

Maximum

Waterdepth

Table 1: Cable loss for 100 kHz and 50 kHz

Cable length in m Loss in dB at 100 kHz Loss in dB at 50 kHz

50 1.2 0.8 100 2.8 1.7 150 4.5 2.6 200 6.3 3.6 250 8.2 4.6 300 10 5.6

Table 2: Depth measuring performance, cable length- dependent for 100 kHz and 50 kHz

Cable length in m Depth in m at 100 kHz Depth in m at 50 kHz

50 270 600 100 250 580 150 230 560 200 200 540 250 180 515 300 170 495

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2.1.2 CABLING, CABLE LOCATION, CABLE SPECIFICATION

Critical point in cabling is the correct handling of the cable screens, especially for the transducer cable.

The cable screens have to be grounded only at one point: at the echosounder.

In all connection boxes the screens are slide and not connected to ground.

Dismantling has to be as short as possible.

The transducer cable from transducer to the first connection box has to be fed through a steel protection pipe.

From the first connection box to the echosounder three kinds of cable laying are mandatory recommended:

• the cable is laid in a steel pipe

• a double-screened cable is used as transducer cable, the inner screen is one-side

connected to the echosounder's ground, the outer screen is one-side connected to the ship's ground.

• the transducer cable has to be laid separately from other cables in a distance of minimum 0.5 m.

Most important is not to lay single shielded cable in the vicinity of other cable.

NOTE: in any case shielded cable has to be used over the whole distance from the transducer to the echosounder. All connection boxes must be metallic.

2.1.3 TRANSDUCER CABLE SPECIFICATION

The cable from the transducer connection box to the echosounder must be approved marine cable according DIN 89158 or similar, like MGCG 2x1.5.

At least the requirement of a resistance <13 Ω/ km and a capacity of < 150 nF/ km must be fulfilled.

2.1.4 INTERFACES

Printer interface: Standard CENTRONICS parallel interface, cable length: 5 m max.

Serial NMEA input: Input for navigational data and time synchronisation

Serial NMEA output: Water depth and additional information, see chapter 3.5.

Both serial interfaces are RS 422.

Only equipment with RS 422 interfaces can be connected to the echosounder, otherwise the interface electronic gets damaged.

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2.1.5 INSTALLATION REPORT; SERVICE REQUEST

After the installation and the quick check ( see chapter 5.1.2) are completed, please fill in the installation report and send a copy to the ELAC Nautik service center ( FAX +49 431 883 366 ). The original belongs into the technical handbook.

If service is needed in case of trouble with the echosounder, please complete the service request/ inspection sheet and forward it to the service company responsible with a copy to the ELAC Nautik service center ( FAX + 49 883 366 ).

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Installation – Report

Schiffsname

Ship’s name _________________________________________________

Installationsfirma

Installation Company _________________________________________________

Installationsdatum

Date of Installation ______________________________

LAZ 5100 ES 5000 Atlas 9205

Werk-Nr. (S/N) 1-Kanal – Gerät 2-Kanal – Gerät Serial Number 1-channel unit 2-channel unit

Wandlertyp Transducer Type S/N

Digitale Tochteranzeige Digital Display Unit DAZ 25 Atlas 9205 T

S/N S/N

Einstellungen

Settings

LAZ 5100 Kanal 1

Channel 1

Frequenz / Frequency Blocking Depth Draft Trim Location NMEA - Interface Baudrate Mode Repetition Rate Protocol

Kanal 2 Channel 2

Bitte eine Kopie des Installationsreports an Elac Nautik Service Center schicken.

Please forward a copy of the Installation Report to Elac Nautik Service Center.

Fax + 49 431 883 366

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Service – Anforderung / Service Request

„

LAZ 5100 ES 5000 Atlas 9205 Werk – Nr.

Serial Number

Schiffsname: Schiffsfax:

Ship’s Name: ___________________ Ship’s Fax: _________________________

No. Item Default value Channel 1 Channel 2

1. Menu „Alarm“

1.1

1.2

1.3

1.4

2. Menu „Parameter“

2.1 Sound velocit

2.2 Units m

2.3 Depth mode DBK

3. Menu „System Set Up“

3.1 Date, Time actual date, time

3.2 Service select with yes

3.2.1 Channel Settings

3.2.1.1 Draft 0,0 m

3.2.1.2 Trim 0,0 m

3.2.1.4 Blocking Depth 2 - 2,5 m

3.2.1.4 Frequenc

3.2.1.5 Location BOW, AFT

3.2.2 Interface

3.2.2.1 External PC 38400 ; 8N1

3.2.2.2 NMEA / DAZ 25 4800 ; 8N1

3.2.2.3 Repetition Rate Fast / Slow

3.2.2.4 Protocol DPT/DBT or ELAC

larm larm depth larm larm depth

OFF“ 0000“ OFF“ 0000“

1500 m/s

xx kHz

Fehlerbeschreibung / Fault Description

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3 TECHNICAL DESCRIPTION

3.1 GENERAL

The LAZ 5100 Navigation Echosounder is a compact, processor controlled, state of the art system.

Presentation of the water depth is made on a Liquid Crystal COLOR Display (LCD) as.

• depth below the keel (DBK)

Logically structured MENUS assist the user when selecting the operating parameters required.

Built to the highest standards, it is certified to meet all requirements laid down by the

IMO Resolution MSC 74/69: Amendments to Resolution A.224,Annex 4 . Wheelmark-tests are

certified by the German authorty BSH (German Hydrographic Institute)..

Figure 3-1: LAZ 5100 Display and Control Unit

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3.2 SYSTEM CONFIGURATION

NOTE: See also Figure 3-2, System Configuration with Options.

The basic system configuration is as follows:

• 1 x Display and Control Unit LAZ 5100

• 1 x Connection Box

• 1 x Transducer

3.2.1 DISPLAY AND CONTROL UNIT

The Display and Control Unit will normally be installed on the bridge, either mounted in a console

or bracket mounted to the deckhead or bulkhead. It is made up of a display area and a keypad

which is used to alter system parameters and settings.

The unit can be a one or two channel unit, working with different transducers on different

frequencies, see Technical Data.

When used with only one transducer ( see Figure 3-1 ), the display area shows the following:

• Water depth

• Range scale

• Time and Date

• Latitude and Longitude (if connected to a Navigation system with a standard

NMEA 0183, version 2.0 interface)

• Minimum and maximum depth alarm settings (if activated)

• A trace of the sea bed

• A colour bar representing the signal strength of the echoes

With two channels, a vertical split display shows left half channel 2 information, right half channel 1

information. Instead of LAT/ LONG a second water depth indication appears.

A built-in ring memory continually stores system data, this allows the user to recall data to the

screen, or print out a hard copy of any or all events occurring within the last 24 operating hours

(if a printer is connected).

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3.2.2 TRANSDUCER CONNECTION BOX

This will usually be installed near the transducer, to allow a defective transducer to be replaced

without having to replace the complete cabling to the Display and Control Unit. The connection box

must be made of metallic material.

3.2.3 TRANSDUCER

The transducer converts electrical energy to sound energy and transmits this towards the sea bed.

Sound energy returning from the sea bed, in the form of echoes, is converted into electrical energy

by the transducer and fed to the Display and Control Unit for evaluation and presentation.

3.3 OPTIONAL EQUIPMENT

The following optional equipment is available to broaden the system capabilities:

• Digital Slave Display(s)

• Printer

• Connection Box

• Transducer(s)

• Switch box

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AVIGATIONS-

ECHO SOUNDER

LAZ 5100

X3 X5X2 X7X1 X6X4 X8

MAINS

OPTIONAL SWITCH BOX

CONNECTION BOX

TRANSDUCER

NMEA

RS 422

RS 232

RS 422

OPTIONAL OPTIONAL

DAZ 25 DAZ 25

OPTIONAL 2nd TRANSDUCER

MAINS

OPTIONAL

PRINTER

OPTIONAL

CONNECTION

BOX

Figure 3-2 : System Block Diagram with Options

* Operator´s Fitness Check

** Mute- Control, TXD1 for Voyage Data Recorder ( NMEA, RS 422)

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3.3.1 DIGITAL SLAVE DISPLAY(S)

These are used to repeat water depth information at other parts of the ship where such information

is needed. A total of two Digital Slave Displays can be connected directly to the system.

NOTE: Echosounding Systems and remote indicators which detect and display the

water depth from a single momentary value per transmission pulse, e.g. digital and pointer displays, can, over a period of time display false readings. This is primarily valid in shallow water areas. For this reason, water depths displayed in this manner must be compared with the graphic presentation at regular intervals in order to guarantee the ship's safety.

IMPORTANT NOTE: While crossing steep slopes the echo evaluation might fail. A steady

depth display cannot be guarantied in this case. The LAZ depth display will show the last evaluated depth value together with a question mark, longer lasting errors will be indicated by a question mark without any depth value. At the digital slave display "----" will be displayed in this case.

3.3.2 PRINTER

A Printer can be connected to give a continuous hard copy of data presented on the display area

or to print out a hard copy of events from any time within a previous 24 operating hour period.

3.3.3 CONNECTION BOX

The Connection Box is connected up to the Display and Control Unit and provides the following

connections:

• a 2nd Digital Slave Display

• a blanking pulse output

• depth alarm relay contacts (potential free)

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3.3.4 TRANSDUCER OPTIONS

If a 2 channel module is installed, the system is capable of accommodating two transducers

without further modification, e.g. one fore and one aft, one port and one starboard. Information

received from either or both transducer(s) can be called up for display.

3.3.5 SWITCH BOX

If no 2 channel module is installed, a switch box can be used for the connection of two transducers

of the same type (frequency). Echo-information of the transducer selected by the switch box will be

shown on the display.

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