Simrad SD570 User manual

Simrad SD570
Fishery sonar
Operator manual
A L W A Y S A T T H E F O R E F R O N T O F T E C H N O L O G Y
www.simrad.com

Simrad SD570
Fishery sonar
Operator manual
850--160368 / Rev.B

Note
Simrad AS makes every effort to ensure that the information contained within this
document is correct. However, our equipment is continuously being improved and
updated, so we cannot assume liability for any errors which may occur.
Warning
The equipment to which this manual applies must only be used for the purpose for
which it was designed. Improper use or maintenance may cause damage to the
equipment or injury to personnel. The user must be familiar with the contents of the
appropriate manuals before attempting to operate or work on the equipment.
Simrad AS disclaims any responsibility for damage or injury caused by improper
installation, use or maintenance of the equipment.
Copyright
E2004 Simrad AS
ISBN 82-8066-017-8
The information contained within this document remains the sole property of Simrad
AS. No part of this document may be copied or reproduced in any form or by any
means, and the information contained within is not to be communicated to a third party,
without the prior written consent of Simrad AS.
Support
For support on your Simrad equipment, consult your local dealer, visit
www.simrad.com, or contact us directly at [email protected].
Simrad AS
Strandpromenaden 50
Box 111
N-3191 Horten
Telephone: [phone]
Facsimile: [phone]
M A X I M I Z I N G Y O U R P E R F O R M A N C E A T S E A

Operator manual
I
850-160368 / B
Sections
1 System familiarization
This section contains a description of the SD570 sonar.
2 Modes of operation
This section describes the different modes of operation.
3Operation
This section contains descriptions of all control knobs and menu systemsof the SD570
sonar, as well as start and stop procedures.
4 Maintenance
This section deals with maintenance work that may be carried out by the user.

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Remarks
References
Further information about the SD570 system may be found in the following manuals:
•SD570 Installation manual
The reader
This operator manual is intended to be used by the system operator. He/she should be
experienced in the operation of positioning systems, or should have attended a Simrad
training course.
Note
This manual includes sections that may be revised individually. In the event of a
revision to any part of this manual, this “Cover and Contents” section will be replaced.

Operator manual
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Document logistics
Rev Date Written Checked Approved
AUnknown
B02.02.04 RBr EGJ ESB
Sect Title File P. n o / R e v
0Cover and contents 850--130368 B
1System familiarization 850--160137 A
2Modes of operation 850--160138 A
3
4
Operation
Maintenance
850--160139
850--160140
A
A
Rev. A First edition
Rev. B Re--issued with ISBN number. Only this cover and contents document
changed.

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Systemfamiliarization
I
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850-160137 /AA000 /3-14
SD570
Systemfamiliarization
This sectioncontainsadescriptionoftheSD570
sonar.

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Documentrevisions
Rev DateWritten byChecked byApproved by
A13.01.97 CLSØJSØJ
B
C
D
(Theoriginalsignatures are recordedinthecompany’slogisticdatabase)

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Table ofcontents
1INTRODUCTION1.............................................
2SD570 UNITS2...............................................
2.1 Introduction2.................................................
2.2 SonarControlUnit4...........................................
2.3 TransceiverUnit5.............................................
2.4 Hull Unit7...................................................
2.5 Auxiliaryequipment8.........................................
3FUNCTIONALDESCRIPTION9.................................
3.1 Introduction9.................................................
3.2 Functionalprinciples9.........................................
3.3 FM(FrequencyModulation)10...................................
3.4 Receiving11...................................................
4TECHNICALSPECIFICATIONS13................................

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Documenthistory
(Theinformationonthispageisforinternaluse)
Rev.AOriginal issue.

Systemfamiliarization
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1INTRODUCTION
TheSimradSD570 sonarisamediumrange omnidirectional
sonar,designedforsmall,mediumandlargesizedfishing
vessels,bothpurseseinersandtrawlers. Greatemphasishas
beenplacedongivingthebestpossiblepresentationonthe14”
high--resolutioncolourdisplay.Theresultis9differentdisplay
modes, whichgivesaflexiblechoiceforalargerange ofuser
applications.
Thetransceiversystemcontainsanadvancedmultifrequency
filtersystem(FM).This,inadditiontogivingaclearand
noiselessechopresentation,alsogivesthesystemafargreater
rangethantraditionalsingle--frequencysonars.
Themulti--element transducerallowsthesonarbeam tobe
trainedandtiltedelectronicallyinanydirection.Thisgives
unlimitedpossibilitiesforautomatictrackingofaschooloffish
andfordisplayingthewholewatervolumearoundthevessel.
Theretractabletransducerunitisdesignedtobeusedata
maximumspeedof15 knots.
WARNING!Wheneverdockingthevessel,theswitchS101attherearofthe
SonarControlUnitshould beswitchedtoOFF positionto
preventinadvertentuseofthesonar.Forlocationoftheswitch,
see figure 1insection“Maintenance”. Thetransducer might
bedamagedif transmittinginair.

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2SD570 UNITS
2.1Introduction
Figure1showsasystemdiagramfortheSD570 sonar,andas
canbeseen,itconsistsofonlythree main units:
·SonarControl Unit
·TransceiverUnit
·Hull Unit
Ashortdescriptionofeach unitwill begiveninthefollowing
chapters.

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Figure 1-SD570 Sonar systemdiagram

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2.2SonarControlUnit
TheSonarControl Unitcomprisesa 14”displayunit,acontrol
panel,aloudspeakerandacomputerizedelectronicunit,all
housedinoneconsole.Thecomplete operationofthesonar
systemisperformedfrom thisunit.
Figure 2-SD570 SonarControl Unit
Thedisplay isa 14”raster--scan high--resolutioncolourCRT,
creatingastableandflicker--free picture.Inadditiontothe
sonarpicture,theCRTalsodisplaystheusermenu forthe
interactive operation.Inorderto easethesituation
comprehension,certainspecific colourshavebeenchosento
betterthedistinctionbetweenthevariouselementsinthe
scene.
Thecontrolpanelcontainsallnecessarycontrolfunctionsfor
operatingthesonar.Thecontrolsarearrangedinfunction
groups, whichgivesaclearandeasyoperation.Inadditionto
thebackgroundlight,thepushbuttonshaveasignal lightfor
easyindicationofthe operationmode.

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Thecomputerizedelectronicunitislocatedinthebottom
sectionoftheconsole,and performsthefollowingfunctions:
·Interfacingofthecontrolpanel
·Interfacingexternalconnections(log,gyro,etc.)
·Generatingthetotaldisplaypresentation
·Generatingtheaudio ofthe echosignal
·Controllingtheseriallinecommunicationtothetransceiver
Theloudspeaker,whichismountedinsidetheelectronicunit,
reproducestheaudio ofthe echoesfortheselectedaudio
channel.
2.3TransceiverUnit
TheTransceiverUnitislocatedinthesonar room,closetothe
Hull Unit.Theunitcontainsthefollowingmodules,seenfrom
theleft--handsideinfigure3:
·Eightequaltransceiverboards(TRB--32)
·Signalprocessorboard(SPB--31)
·TransceiverInterfaceBoard(TIB)
·Powersupply
·Highvoltageunit
TheTransceiverUnitperformsmostofthemainfunctions
oftheSD570 sonar:
·Receivesthe operatorsettingsfrom theSonarControlUnit.
·Generatesthehighvoltageforthe256 transmitters
·Controlsthetransmissionwithatotalof256 separate57
kHztransmitters
·Controlsthetotalgainand data acquisitionofthe256
separatepreamplifiers
·Performsthedigitalbeamformingofthereceivedsignals
·ExecutestheFM(Frequencymodulation)
·Accomplishesthepostprocessing(detection,AGC/RCGand
ping--to--pingcorrelation)
·TransmitsthereceivedechodatatotheSonarControl Unit
The256 transducerelementsontheHull Unitareconnected
directlytothefrontofthe eight transceiverboardsinthe
TransceiverUnit.

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Figure 3-TheSD570 Transceiver Unit

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2.4Hull Unit
TheSD570HullUnitisdesignedtobelowered1.0meterbelow
theship’shull atamaximumship’s speedof15 knots.The
transducercanalsobeloweredtoamiddlepositionwhere only
thetransducerfaceisoutsidethesonartrunk.
Inadditiontothesolidconstructionofthehoisting/lowering
mechanism,theSD570 Hull Unitcomprisesthefollowing
maincomponents:
·Raising/loweringmotor
·Motor controlunit
·Multi--element transducer
ThemotorontheHullUnitisathree--phasemotor,andituses
less than25 secondsfor raisingandloweringthetransducer.
Note,thatincase ofvoltagefailure,theHull Unitcanbe
manuallyraisedorloweredbyahandcrank.
ThemotorcontrolunitwhichismountedontheHull Unit,
containsthecontrolelectronicsfortheraising/loweringmotor.
The optionalsensorforthe electronicstabilizationofthesonar
beamsisalsohousedinthemotor controlunit.
Thetransducerhasadiameterof20 cm,andcontains256
separatetransducerelements.Thisprovidesunlimited
electronic controlofthesonarbeamsinanydirectionaround
andbelowthevessel.
WARNING!If thetransducer hitslarger objectsorbottom,thetransducer
shaft may bebent, orinworstcaseitcan bebrokenoff.A
brokentransducer shaft will causewater leakageinthetopof
theshaft.Topreventlargerleakagesinsuchacase,donotraise
thetransducer shaft totheupper position.Topreventserious
damagesitistherefore ofgreatimportance tohavea good
pumpand warningsysteminthesonar room.

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2.5Auxiliary equipment
TheSD570 sonar requiresconnectiontoaspeedloganda
coursegyro.Aninaccuratelogorgyroinputwill cause
inaccurateindicationofthevesselandtarget movements.
Inadditiontologandgyro,thefollowingauxiliaryequipment
canbeconnectedtothesonar:
·Simradechosounder,typesEQ50,EQ55,EQ100,
ES380/700 orES500.
Givesdepthreadoutinthemenu anda bottomplotonthe
catchdatapage.
·SimradTrawlInstrumentation:FS900,FS3300 orITI.
FS900 andFS3300:Thetrawlwill bedisplayedincorrect
depth.
ITI:Thetrawlwill bedisplayedincorrectdepth,distance
andbearing.
For connectionofanyoftheseauxiliaryequipments,contact
yourlocaldealer.