Simrad ES333-7C DATASHEET

Installation manual

TECHNOLOGY FOR SUSTAINABLE FISHERIES

www.simrad.com

Simrad ES333-7C
333 kHz split-beam transducer

SimradES333-7C

Installationmanual

Thisdocumentprovidesageneraldescriptionofhowto
installtheSimradES333-7CSplit-beamtransducer.The
informationmustberegardedasgeneralguidelinesand
recommendationsonly.Theinstallationshipyardmust
designandmanufactureinstallationhardwaretotthe
ES333-7Ctransduceroneachindividualvessel.

21January2009

329786/A

Documenthistory

Kong s be rgM a rit im eA S
St r a nd prom e na de n5 0
P.O. Box1 11
N- 31 9 1H o rte n ,N orwa y

S im r a d

Tele pho n e :+ 473 30 34 00 0
Tele fa x:+ 473 30 42 98 7

cont act@s im rad .com

w w w .s im r a d . c o m

Documentnumber:329786/ISBN-13:978-82-8066-104-3

Rev.AJanuary2009

Firstversion.

Copyright

©2009KongsbergMaritimeAS
TheinformationcontainedinthisdocumentremainsthesolepropertyofKongsbergMaritimeAS.Nopart
ofthisdocumentmaybecopiedorreproducedinanyformorbyanymeans,andtheinformationcontained
withinitisnottobecommunicatedtoathirdparty,withoutthepriorwrittenconsentofKongsberg
MaritimeAS.Thedocument,oranypartofit,maynotbetranslatedtoanyotherlanguagewithoutthe
writtenapprovalfromKongsbergMaritimeAS.

Disclaimer

KongsbergMaritimeASendeavourstoensurethatallinformationinthisdocumentiscorrectandfairly
stated,butdoesnotacceptliabilityforanyerrorsoromissions.

Warning

Theequipmenttowhichthismanualappliesmustonlybeusedforthepurposeforwhichit
wasdesigned.Improperuseormaintenancemaycausedamagetotheequipmentand/orinjury
topersonnel.Theusermustbefamiliarwiththecontentsoftheappropriatemanualsbefore
attemptingtoinstall,operateorworkontheequipment.
KongsbergMaritimeASdisclaimsanyresponsibilityfordamageorinjurycausedbyimproper
installation,useormaintenanceoftheequipment.

Support

IfyourequiremaintenanceonyourSimradproductcontactyourlocaldealer.Youcanalsocontactususing
thefollowingaddress:s

w w . s i m r a d . c o m .Onourwebsiteyouwillalsondalistofourdealersanddistributors.

visitw

i m r a d . s u p p o r t @ s i m r a d . c o m .Ifyouneedinformationaboutourotherproducts,

Installationmanual

Tableofcontents

ABOUTTHISMANUAL.......................................................5

SIMRADES333-7C............................................................6

WHERETOMOUNTTHETRANSDUCER...............................7

HOWTOINSTALLTHETRANSDUCER..............................12

Transducerinstallationinblister............................................................................12

Transducerinstallationinboxkeel.........................................................................17

Transducerushmountedinasteeltank...............................................................19

Transducerwithacousticwindow..........................................................................20

Transducermountedinsidethehull.......................................................................21

Transducermountedonadropkeel.......................................................................23

Retractabletransducer............................................................................................24

TRANSDUCERCABLEGLANDSANDSPLICING.................25

Aboutcableglands.................................................................................................25

Cableglandforsteelhulls......................................................................................26

CableglandforwoodenandGRPhulls.................................................................27

Cableglandsforsmallhulls...................................................................................28

Transducercablesplicing.......................................................................................29

Ordernumbers........................................................................................................29

STEELCONDUIT..............................................................30

TRANSDUCERHANDLINGANDMAINTENANCE................31

Rulesfortransducerhandling.................................................................................31

Approvedanti-foulingpaints..................................................................................31

Usingself-lockingtaps...........................................................................................32

DRAWINGFILE...............................................................36

Echosounderconnections......................................................................................36

Splicingthetransducercable.......................................................................36

GeneralPurposeTransceiver(GPT)wiring...................................................37

GeneralPurposeTransceiver(GPT)transducerplugassembly.......................38

Outlinedimensionsandinstallationdrawings........................................................39

Outlinedimensions[318747].......................................................................40

Recommendedarrangement[204678]..........................................................41

Mountingring[204449]..............................................................................43

Clampingring[204451]..............................................................................45

329786/A

3

SimradES333-7C

4

329786/A

ABOUTTHISMANUAL

Aboutthismanual

Purpose

Thepurposeofthisinstallationmanualistoprovidegeneric
descriptionsandillustrationsallowingthereadertounderstand
thebasicprinciplesforechosoundertransducerinstallation.

Abouttheinformationprovidedinthisdocument

Theinformationinthisdocumentmustberegardedasgeneral
guidelinesandrecommendationsonly.Theinstallationshipyard
mustdesignandmanufactureinstallationhardwaretoteach
individualtransducerandvessel.

Approvalbymaritimeauthorities

Wheneverrequired,theinstallationshipyardmustalsohavethe
installationapprovedbytheapplicablemaritimeauthorities.

Additionalinformation

Foradditionaldetailedinformationaboutthetransducerto
beinstalled,refertothedocumentationprovidedwiththe
transducer.Drawingsanddescriptionscanalsobeobtainedfrom

t t p : / / w w w . s i m r a d . c o m .

h

329786/A

5

SimradES333-7C

SIMRADES333-7C

Thepurposeofthismanualistheprovidethebasicinformation
requiredtoinstalltheSimradES333-7CSplit-beamtransducer.

Transduceranddocuments

•SimradES333–7C:322598

•Productspecication:329781

•Documents:

–Outlinedimensions:318747

–Mountingring:871-204449

–Clampingring:871-204451

–Mountingarrangement:820-204678

Note

Althoughdrawingsareprovidedtoexplaintheinstallation
principles,theinstallationshipyardmustprovidethenal
drawingsrequiredtotthetransducertoeachindividual
vessel.Also,whenapplicable,theinstallationshipyard
musthavethedrawingsandinstallationapprovedbythe
propermaritimeauthorities.Thedrawingsspecicfor
theES333-7CtransducerarelocatedintheDrawingle
onpage36.

Technicalspecications

RefertotheES333-7Cproductspecication.

Additionalpartsprovidedforinstallation

ThefollowingitemscanbesuppliedbySimradtofacilitate
installation:

•Mountingring:ES2–204464

•Clampingring:ES2–200879

•Transducercable(forextension):642–078215

6

329786/A

WHERETOMOUNTTHETRANSDUCER

Wheretomountthetransducer

Asingleanswertothequestionwheretolocatethetransducer
cannotbegiven.Itdependsverymuchonthevessel’s
construction,howthehullisshapedandhowthewaterruns
alongthehull.Therearehoweveranumberofimportantguide
lines,andsomeoftheseareevenconicting.

Mountthetransducerdeep

Mountthetransduceratadeeppositiononthehull.Considerthe
situationswhenthevesselisunloaded,andwhenitispitching
inheavyseas.

Thereareseveralreasonsforthis.

1Theupperwaterlayersoftheseacontainamyriadofsmall

airbubblescreatedbythebreakingwaves.Inheavyseasthe
upper5to10metresmaybelledwithair,andthehighest
concentrationswillbenearthesurface.Airbubblesabsorb
andreectthesoundenergy,andtheymayinworstcases
blockthesoundtransmissionaltogether.

2Anotherreasontogodeepisthecavitationinfrontof

highpowertransducers.Cavitationistheformationof
smallbubblesinthewaterduetotheresultinglocal
pressurebecomingnegativeduringpartsoftheacoustic
pressurecycles.Thecavitationthresholdincreaseswiththe
hydrostaticpressure.

3Thetransducermustneverbeliftedfreeofthewatersurface.

Transmittingintoopenairmaydamagethetransducer
beyondrepair.Mountingthetransduceratadeepposition
onthehullpreventsthis.

4Ifthetransducerisliftedupfromthewaterduringheavy

seas,itmaybedamagedwhenthehullstrikesbackatthe
seasurface.Thisisespeciallyimportantforlowfrequency
transducerswithlargefaces.

Mountthetransducermidwaybetweenthebow
andthesterntoavoidheaveeffects

Heaveistheupanddownmovementofthevessel.Itdisturbsthe
echotracesintheechogram,sothataatbottomisdisplayed
asawave.Atransducerlocationinthemiddleofthevessel
minimisestheinuenceofvesselrollandpitch.

Mountthetransducerawayfromprotruding
objectsonthehull

Objectsprotrudingfromthehull,suchaszincanodes,sonar
transducersoreventhevessel’skeel,generateturbulenceand
ownoise.Holesandpipeoutletsarealsoimportantnoise
sources.Theymayactasresonantcavitiesamplifyingtheow

329786/A

7

SimradES333-7C

noiseatcertainfrequencies.Donotplaceanechosounder
transducerinthevicinityofsuchobjects,andespeciallynot
closebehindthem.Forthesamereason,itisveryimportant
thatthehullareaaroundthetransducerfaceisassmoothand
levelaspossible.Eventracesofsealingcompound,sharpedges,
protrudingboltsorboltholeswithoutllingcompoundwill
createnoise.

Mountthetransducerattheforwardpartofthe
hulltominimisetheeffectsfromtheboundary
waterlayer

Whenthevesselforcesitswaythroughthesea,thefriction
betweenthehullandthewatercreatesaboundarylayer.The
thicknessoftheboundarylayerdependsuponvesselspeedand
theroughnessofthehull.Objectsprotrudingfromthehull,and
dentsinthehull,disturbtheowandincreasethethicknessof
theboundarylayer.Theowinthisboundarylayermaybe
laminarorturbulent.Alaminarowisanicelyordered,parallel
movementofthewater.Aturbulentowhasadisorderlypattern,
fullofeddies.Theboundarylayerincreasesinthicknesswhenthe
owgoesfromlaminartoturbulent.Thegurebelowillustrates
theboundarylayerofavesselmovingthroughthewater.

Figure1Boundarywaterlayer

ATurbulentow

BLaminarow

CAirbubblesinthewater

Furthermore,airbubblesintheseawaterarepresseddownbelow
thehullandmixedintotheboundarylayer.Theboundarylayer
isthinunderneaththeforwardpartofthevessel,andincreasesin
thicknessasitmovestowardsaft.Ifthesidesofthehullaresteep,
someoftheairbubblesintheboundarylayermayescapetothe
seasurfacealongthevesselsides.Itisourexperiencethatawide

8

329786/A

Wheretomountthetransducer

andatbottom,witharisinganglelessthanaround13degrees,
ispronetogivingairproblemsforthetransducer.Inanycasea
transducerlocationintheforwardpartofthehullispreferredin
ordertominimisetheinuenceoftheboundarylayer.

Mountthetransducerfarawayfromthepropellers

Thepropulsionpropelleristhedominantnoisesourceonmost
shingvessels,researchvessels,merchantvesselsandpleasure
crafts.Thenoiseistransmittedthroughtheseawater.For
thisreason,thetransducershouldbeplacedfarawayfromthe
propeller,whichmeansontheforepartofthehull.Positions
outsidethedirectlineofsightfromthepropellerarefavourable.
Onsmallvesselswithshortdistancesitisadvisedtomountthe
transduceronthatsideofthekeelwherethepropellerblades
moveupwards,becausethepropellercavitationisstrongeston
theotherside.Thecavitationstartsmosteasilywhenthewater
owsinthesamedirectionasthepropellerblade,andthatisto
somedegreethecaseatthatsideofthekeelwherethepropeller
bladesmovedownwards.

Mountthetransducerfarawayfromthebow
thrusters

Bowthrusterpropellersareextremelynoisy .Wheninoperation,
thenoiseandcavitationbubblescreatedbythethrustermake
theechosounderuseless,almostnomatterwherethetransducer
isinstalled.Andwhennotinoperation,thetunnelcreates
turbulence,andifthevesselispitching,thetunnelmaybelled
withairoraeratedwaterintheupperpositionandreleasethisin
thelowerposition.Ingeneral,alltransducersmustbetherefore
placedwellawayfromthebowthruster.However,thisisnot
aninvariablerule.Certainthrusterdesignscombinedwithits
physicallocationonthehullmaystilloffersuitabletransducer
locationsnearthethruster.Ifyouareindoubt,consultanaval
architect.

Mountthetransducerwithaslightlyinclined
transducerface

Ideally,thetransducerfaceshouldbemountedinparallelwiththe
seasurfacewhenthevesselisinnormaltrim,asthiswillprovide
themostaccurateechoinformation.However,itisalsovery
importantthatthew

a t e r  o w overthetransducerfaceislaminar.
Inordertoensurelaminarow,thetransducerfacemaybetilted
slightlyupwardsinrelationtothewaterow.Thisallowsthe
owingwatertomeetthefacedirectly ,andassureslaminarow .
Theinclinationanglemusthoweverbedeterminedcarefully.The
anglemustbesmallontransducerswithnarrowbeamangles.As
aruleofthumb,mounttransducerswithbeamanglessmaller
thansevendegreeswithminimuminclinationangle.Thesmaller

329786/A

9

SimradES333-7C

beamangleyourtransducerhas,thesmallertheinclinationangle
canbe.Ensurethatyoudonotmountthetransducerwitha
negativeinclinationangle.Thismaycauseturbulenceunderthe
transducerface,andreducedechosounderperformance.

Summaryandgeneralrecommendations

Someoftheaboveguidelinesareconicting,andeachcasehas
tobetreatedindividuallyinordertondthebestcompromise.
Generallythepropellernoiseisthedominantfactor,anda
recommendedtransducerlocationisintheforepartofthehull,
withmaximumdistancefromthebowequaltoonethirdofthe
totallengthofthehullatthewaterline.

Figure2Generalrecommendationfortransducerlocation

ATransducer

BInclinationangle

CHulllengthatwaterline

DMaximum1/3ofthehulllengthatwaterline(C)

10

329786/A

Wheretomountthetransducer

Ifthevesselhullhasabulbousbow ,thismaywellbeagood
transducerlocation,butalsoheremustbetakenintoconsideration
theowpatternoftheaeratedwater.Oftentheforemostpart
ofthebulbispreferable.

Figure3Recommendedlocationofthetransduceronabulbous
hull

AThruster

BTransducerlocation

329786/A

11

SimradES333-7C

HOWTOINSTALLTHETRANSDUCER

Therearemanydifferentwaystomountthetransducer.These
aretherecommendedmethodstomountacirculartransducer.

Transducerinstallationinblister

Withatransducerwithcircularhousing,onerecommended
installationmethodisbyusingablister.Thetransducerblister
mustbedesignedandmanufacturedbytheinstallationshipyard
totthevessel’ssizeandhullshape.

Usemountingandclampingringswhenever
provided

Circulartransducersmaybeprovidedwithmountingand
clampingrings,orwithdrawingstoallowforlocalproduction
ofthese.Themountingringisweldedtotheholepreparedfor
thetransducer,whiletheclampingringtsaroundtheedgeof
thetransducerbody.Boltsthroughtheclampingringintothe
mountingringwillsecurethetransducerbetweenthem.Note
thatseveraltransducersusedirectionguidestoallowcorrect
mounting.

Smoothsurfaceisimportant

Mountingscrewsorboltsmustnotbeextrudingfromthe
transducerortheareaimmediatelyaroundit.Makesurethatthe
surfaceofthetransducerface,theinstallationhardwareusedto
mountit,thehullplatingandtheputtyaroundthetransduceris
asevenandsmoothaspossible.Obstructionsonthesesurfaces
willcreateproblemswithturbulentow.

Useahorizontalsupportbaronlargetransducers

Werecommendthatlargetransducersarettedwithahorizontal
supportbar.Thepurposeofthissupportbaristoprotectthe
transducerfromdamageintheeventofslamming.Thishappens
ifthevesselhullclimbsoutofthewaterinheavyseas.Theforce
ofthewaterwhenthehullfallsdownmaypushthetransducer
upandcausedamagetoitsmounting.Thesupportbarcanbe
securedtothemountingringusingthreadedrods.

1.Slammingistheimpactofthebottomstructureofashipontotheseasurface.Itismainlyobserved
whilesailinginwaves,whenthebowraisesfromthewaterandsubsequentlyimpactsonit.Slamming
inducesextremelyhighloadstoshipstructuresandistakenunderconsiderationwhendesigningships.
(Wikipedia)

[1]

12

329786/A

Howtoinstallthetransducer

(CD017010A)

H

E

E

K

G

B

D

A

C

F

J

I

Example:Largetransducer

Theillustrationbelowshowsatypicaltransducerblisterdesigned
foralargetransducer.Notethatduetothephysicalsizeof
thetransducer,aU-shapedsupportbar(E)isusedtosupport
thetransducer.Thepurposeofthissupportistopreventthe
transducerfrombeingpushedupintotheblisterinheavyseas.

AStreamlinedblister

BStiffeningrib

CDrainageholes

DInclinationangle

EU-shapedsupportbar(onlargetransducers)

FForward

GCableserviceloop

HStufngtube

IMinimum400mm

JRoundedcorners

KAiroutlet

329786/A

13

SimradES333-7C

E

E

A

C

G

D

F

B

(CD017010B)

Example:Smalltransducer

Theillustrationbelowshowsatypicaltransducerblisterdesigned
forasmalltransducer.Thesameblisterdesignprinciplesasfora
largetransducerapply .

AStreamlinedblister

BMountingring

CClampingring

DGuide

EAiroutlet

FForward

GTransducercable

Notethatthetransducercablemustbeprovidedwithacableloop
insidetheblister.Observetheverticalforwardedgeoftheblister.
Thiswillguidethewatertoeachsideoftheblister.

14

329786/A

Howtoinstallthetransducer

A

B

C

H

F

E

E

G

D

I

(CD017010E)

Example:Mediumsizedtransducerwithout
clampingring

Theillustrationbelowshowsatransducerblisterdesignedfora
mediumsizedtransducers.Thesameblisterdesignprinciples
apply.Notethatthetransducerismountedwithoutaclamping
ring,whichmakesitnecessarytouseadifferentmountingring
design.

AStreamlinedblister

BMountingring

CBolt

DSelf-lockingthreads

EAiroutlet

FForward

GTransducercable

HTransducer

Notethatthetransducercablemustbeprovidedwithacableloop
insidetheblister.Observetheverticalforwardedgeoftheblister.
Thiswillguidethewatertoeachsideoftheblister.

329786/A

15

SimradES333-7C

(CD17010C)

A

B

C

Commonguidelines

Thebestperformanceisobtainedwithablisterheightof40cm
ormore.Astreamlinedshapeandroundededgesreducetheow
noise.Averticalleadingedgeorfrontwillguidetheaerated
watertothesidesoftheblister.Theorientationoftheblister
shouldfollowthewaterow.

Theinterioroftheblistermustbelledwithseawater.Use
drainageholesinthebottomandanairoutletonthetop.The
waterpressurebehindthetransducerwillthencompensatefor
theoutsidepressureduringvesselmovementsinroughsea.

Werecommendthatlargediametertransducersarettedwitha
horizontalU-shapedsupportbar.Thisbarcanthenbesecured
tothemountingringusingthreadedrods.

Thetransducercablepenetratesthehullinastufngtube.Leave
anadequateloopofthecablebehindthetransducerforeasy
mountingorremovalofthetransducer.

Toe-in

Theprimaryconsiderationmustbetoallowlaminarwaterow.
Inmostcasesthisisachievedbydesigningtheblisterinparallel
withthekeel.However,iftheblisterislocatedclosetothebow,
thefrontoftheblistermayhaveafewdegreestoe-intowards
thebow.

AKeel

BBlister

CT oe-inangle

16

329786/A

Howtoinstallthetransducer

Physicallocation

Theblisterisplacedononeofthesidesofthehull,andthe
distancefromthekeelisatradeoffbetweenaclosedistance
givingaturbulentowofwaterinanarrowpassage,andalarge
distancebringingthetransducerhigherupandalsomoreaffected
byvesselroll.Normallyadistanceofapproximately1misa
goodcompromise.

Observethehorizontalandverticaldistances(CandD)between
thekeelandthetransducerblister.Onamediumsizedvessel,the
horizontaldistance(C)shouldbeapproximately1meter.The
verticaldistance(D)mustingeneralbeassmallaspossible.This
isimportanttopreventthekeelfromshadowingthetransducer
beaminshallowwaters.

AKeel

BTransducer

blister

CHorizontal

distance
betweenkeel
andblister

DV ertical

distance
betweenthe
blistersurface
andthekeel

Transducerinstallationinboxkeel

Vesselswithaboxkeelmayusethisfortransducerinstallation.

Theboxkeelisalreadythedeepestpartofthevessel.Ifthe
boxkeelistoonarrowtoaccommodatethetransducer,itcanbe
widened,eithersymmetricallyortoonesideonly.Inthelast
casetheinstallationcouldalsobedescribedasablistermerged
intothekeel.

Usemountingandclampingringswhenever
provided

Circulartransducersmaybeprovidedwithmountingand
clampingrings,orwithdrawingstoallowforlocalproduction
ofthese.Themountingringisweldedtotheholepreparedfor
thetransducer,whiletheclampingringtsaroundtheedgeof

329786/A

17

SimradES333-7C

(CD1701

1A)

A

B

D

C

E

thetransducerbody.Boltsthroughtheclampingringintothe
mountingringwillsecurethetransducerbetweenthem.Note
thatseveraltransducersusedirectionguidestoallowcorrect
mounting.

Smoothsurfaceisimportant

Mountingscrewsorboltsmustnotbeextrudingfromthe
transducerortheareaimmediatelyaroundit.Makesurethatthe
surfaceofthetransducerface,theinstallationhardwareusedto
mountit,thehullplatingandtheputtyaroundthetransduceris
asevenandsmoothaspossible.Obstructionsonthesesurfaces
willcreateproblemswithturbulentow.

Useahorizontalsupportbaronlargetransducers

Werecommendthatlargetransducersarettedwithahorizontal
supportbar.Thepurposeofthissupportbaristoprotectthe
transducerfromdamageintheeventofslamming.Thishappens
ifthevesselhullclimbsoutofthewaterinheavyseas.Theforce
ofthewaterwhenthehullfallsdownmaypushthetransducer
upandcausedamagetoitsmounting.Thesupportbarcanbe
securedtothemountingringusingthreadedrods.

[2]

Example:Boxkeelinstallation

Thegurebelowillustratesasymmetricalboxkeelinstallation.

ABoxkeel

BU-shaped

supportbar
(onlyrequired
onlarge
transducers)

CStufngtube

DCableinsteel

conduit

ECableservice

loop

2.Slammingistheimpactofthebottomstructureofashipontotheseasurface.Itismainlyobserved
whilesailinginwaves,whenthebowraisesfromthewaterandsubsequentlyimpactsonit.Slamming
inducesextremelyhighloadstoshipstructuresandistakenunderconsiderationwhendesigningships.
(Wikipedia)

18

329786/A

Transducerushmountedinasteeltank

Flushmountingisusedonverylargevesselswithahullsodeep
thatnoairbubblesarefoundbelowthehull,andonvessels
operatinginshallowharboursorwaters,whereaprotruding
blistercannotbeaccepted.

Thestandardprocedureforushmountingonasteelvesselis
toweldasteeltankinsidethehull,andmountthetransducer
intothistank.

Usemountingandclampingringswhenever
provided

Circulartransducersmaybeprovidedwithmountingand
clampingrings,orwithdrawingstoallowforlocalproduction
ofthese.Themountingringisweldedtotheholepreparedfor
thetransducer,whiletheclampingringtsaroundtheedgeof
thetransducerbody.Boltsthroughtheclampingringintothe
mountingringwillsecurethetransducerbetweenthem.Note
thatseveraltransducersusedirectionguidestoallowcorrect
mounting.

Howtoinstallthetransducer

Smoothsurfaceisimportant

Mountingscrewsorboltsmustnotbeextrudingfromthe
transducerortheareaimmediatelyaroundit.Makesurethatthe
surfaceofthetransducerface,theinstallationhardwareusedto
mountit,thehullplatingandtheputtyaroundthetransduceris
asevenandsmoothaspossible.Obstructionsonthesesurfaces
willcreateproblemswithturbulentow.

Useahorizontalsupportbaronlargetransducers

Werecommendthatlargetransducersarettedwithahorizontal
supportbar.Thepurposeofthissupportbaristoprotectthe
transducerfromdamageintheeventofslamming.Thishappens
ifthevesselhullclimbsoutofthewaterinheavyseas.Theforce
ofthewaterwhenthehullfallsdownmaypushthetransducer
upandcausedamagetoitsmounting.Thesupportbarcanbe
securedtothemountingringusingthreadedrods.

Waterlled

[3]

Asforablister,theinteriorofthetankmustbelledwithwater.
Thiscanbeaccomplishedbyairreleasethroughasteeltube,
whichisextendedeithertoopenair1.5mabovethewaterline
ortothewateroutsidethehullatapointhigherthanthetank

3.Slammingistheimpactofthebottomstructureofashipontotheseasurface.Itismainlyobserved
whilesailinginwaves,whenthebowraisesfromthewaterandsubsequentlyimpactsonit.Slamming
inducesextremelyhighloadstoshipstructuresandistakenunderconsiderationwhendesigningships.
(Wikipedia)

329786/A

19

SimradES333-7C

(CD17012A)

B

A

G

C

D

E

F

ASteeltank

BWater

CDrainagehole

DCableservice

loop

ESteeltubefor

airoutlet

FStufngtube

interior.Ifthetubeisextendedtoopenair,drainagemustbe
providedwithleakageatthetransducerangeoraseparatehole
inthetankbottom.

Example:Flushmountinginasteeltank

Transducermountinginasteeltankisshowninthegurebelow.

GCableinsteel

conduit

Transducerwithacousticwindow

Vesselsoperatinginarcticwatersneedspecialattentionon
transducerinstallation.Floatingblocksoficemaydamageeven
aushmountedtransducerface.ForthissituationSimradoffers
arctictanksindifferentsizes.

Usemountingandclampingringswhenever
provided

Circulartransducersmaybeprovidedwithmountingand
clampingrings,orwithdrawingstoallowforlocalproduction
ofthese.Themountingringisweldedtotheholepreparedfor
thetransducer,whiletheclampingringtsaroundtheedgeof
thetransducerbody.Boltsthroughtheclampingringintothe
mountingringwillsecurethetransducerbetweenthem.Note
thatseveraltransducersusedirectionguidestoallowcorrect
mounting.

Smoothsurfaceisimportant

Mountingscrewsorboltsmustnotbeextrudingfromthe
transducerortheareaimmediatelyaroundit.Makesurethatthe
surfaceofthetransducerface,theinstallationhardwareusedto

20

329786/A

ASteeltank

(CD017012B)

B

A

C

G

D

E

F

BOil

CAcoustic

window

DCableservice

loop

Howtoinstallthetransducer

mountit,thehullplatingandtheputtyaroundthetransduceris
asevenandsmoothaspossible.Obstructionsonthesesurfaces
willcreateproblemswithturbulentow.

Example:Acousticwindow

Thetransducershowninthegurebelowismountedinsidethe
tankbehindastrongacousticwindowwhichcouldbemadeof
polycarbonate.Thetankislledwithoil.

EStufngtube

FCableinsteel

conduit

GOilinlet

Transducermountedinsidethehull

Thetransducercanalsobemountedinsidethehull.

Aninstallationofthetransducerinsidethehull,andsounding
throughthehull,requiresagoodacousticcontactbetweenthe
transducerfaceandthehull.Buildatankaroundthetransducer
andllitwithaliquid.Oilusedinhydraulicsystemsisawell
suitedliquidforthispurpose.Itcontainsnogasbubblesand
isnon-corrosive.

Typicalvaluesofthetwowaylossare3dBforpolyester,6dB
foraluminiumand10dBforsteel.Hullsmadeofwoodora
sandwichtypewithfoaminthemiddle,attenuatethesoundso
muchthatthroughhullsoundingmustberegardedasimpossible.
Thelossvarieswiththedistancebetweentransducerfaceand
thehull.Thebestresultisobtainedwhenthedistanceishalfa
wavelength.ConsultSimradforadvice.Inadditiontotheloss,
thebeampatternisdegraded,becausealargerareaofthehullis
setintovibrations.

329786/A

21

SimradES333-7C

(CD017012C)

B

A

C

D

E

F

G

H

Usemountingandclampingringswhenever
provided

Circulartransducersmaybeprovidedwithmountingand
clampingrings,orwithdrawingstoallowforlocalproduction
ofthese.Themountingringisweldedtotheholepreparedfor
thetransducer,whiletheclampingringtsaroundtheedgeof
thetransducerbody.Boltsthroughtheclampingringintothe
mountingringwillsecurethetransducerbetweenthem.Note
thatseveraltransducersusedirectionguidestoallowcorrect
mounting.

Smoothsurfaceisimportant

Mountingscrewsorboltsmustnotbeextrudingfromthe
transducerortheareaimmediatelyaroundit.Makesurethatthe
surfaceofthetransducerface,theinstallationhardwareusedto
mountit,thehullplatingandtheputtyaroundthetransduceris
asevenandsmoothaspossible.Obstructionsonthesesurfaces
willcreateproblemswithturbulentow.

ASteeltank

BOil

CHullplating

DCableservice

loop

EStufngtube

FCableinsteel

conduit

GHoleforoil

lling

HAiroutlet

Example:Mountinginsidethehull

Thetransducershowninthegurebelowismountedinsidethe
hull.Thetankislledwithoil.

22

329786/A

Transducermountedonadropkeel

(CD017012D)

B

C

A

Theuseofadropkeelwiththepurposeofstabilisingthevessel
iswellknown.

Adropkeelisalsoasuperiorplatformforechosounder
transducers.Suchinstrumentkeelshavebeenbuilt,mainlyon
researchvessels,oftenprotrudingasfarasthreemetersbelow
thehull.Atthatdepth,thewaterisfreeofairbubblesupto
veryhighseastates.Thevesselisthenabletoperformreliable
acousticmeasurementsinopenseaalargerpartoftheyear.

Howtoinstallthetransducer

AInstrumentkeelshaft

BLoweredposition

CBottomview

329786/A

23

SimradES333-7C

(CD017012E)

B

E

C

D

A

Retractabletransducer

Hullunitsallowingthetransducertobeloweredandhoistedare
commonlyusedforhorizontallookingsonars.Whennotinuse,
thetransducerisretractedintoatrunk.

Theretractablehullunitismoreexpensivethanablister,buton
vesselswithahullwhereitisdifcultorimpossibletoinstalla
blister,itmaystillbeworthwhile.Theprinciplesofahullunit
witharetractabletransducerisshownbelow.

Vesselswithoutakeelandwithawide,atbottomisanexample
wherearetractablehullunitcanbetheonlyacceptablemethod
forbringingtheechosoundertransducerbelowtheboundary
layer.

ATransducer

BTrunk

CTransducer

shaft

DTransducer

shaftsleeve

EKeel

24

329786/A

TRANSDUCERCABLEGLANDSANDSPLICING

Thetransducercablemustpassthroughthehullusingapproved
cableglandsforthetypeofvesselinquestion.

Aboutcableglands

Asteelcableglandisnormallyusedonprofessionalvessels
withsteelhulls.Abronzecableglandcanbedeliveredasan
optionforvesselswithwoodorbreglasshulls.V esselnottobe
classiedcanasanoptionuseacableglandmadeofplastic.

Note

Simradstronglyrecommendsthatalengthofconduitistted
aroundtransducercableglandsmadeofsteelorbronzeand
extendedoverthewater-lineinsidethevessel.Thisprecaution
reducesthedangerofoodingintheeventofglandfailureand
transducersinstalledinthismannerarealsoeasiertoreplace.

Transducercableglandsandsplicing

Somevesselsmayexperiencedifcultiesndingsuitableareas
ofthehullformountingtransducercableglandsduetoexisting
watertanks,concreteballastorotherobstacles.Apossible
solutioninsuchcasesistorunthetransducercablesinasteel
conduitaftalongthehulluntilasuitablecableglandlocationis
available.Therespectivecableglandcanthenbeinstalledas
describedinthefollowinginstructions.

Note

Simradtakesnoresponsibilityforthecorrectinstallationof
cableglands,associatedhullmodicationsand/orstructural
supportoftransducercablepenetration.Theseactivitiesare
subjecttoindividualapprovalbytherespectiveclassication
societyforthevesselinquestion.

329786/A

25

SimradES333-7C

(CD17008A)

ø35

ø65

A

A

B

C

C

D

E

F

Cableglandforsteelhulls

Thiscableglandkitisdesignedforsteelvessels.Itmustbe
weldedtothehullplates.

ASteelconduit

BStufngtube,DNVapprovedcarbonsteelst52.3

CW ashers

DRubbergasket

EPackingnipple.Makesurethatyoudonotdamagethe

transducercablebytighteningthepackingnippletoohard!

FCabletotheechosounder(orajunctionbox)

Thecableglandkitincludesallofthenecessarypartsneededto
installtheunitexceptscrews.

Simradrecommendsthataoneinchsteelconduit(thatthe
transducercablewillberunthrough)withaninsidethreaded
diameterofthree-quarterinchesisweldedtothegland’sstufng
tube.Theconduitmustextendtoabovethevessel’swaterline.

26

329786/A

CableglandforwoodenandGRPhulls

A

B

B

B

C

C

C

D

E

F

AbronzecableglandkitisavailableforwoodenandGRP
vessels.

Transducercableglandsandsplicing

APackingnipple.Makesurethatyoudonotdamagethe

transducercablebytighteningthepackingnippletoohard!

BW ashers

CRubbergaskets

DHolediameter28mm

ESteelconduit

FCabletotheechosounder(orajunctionbox)

Thecableglandkitincludesallofthenecessarypartsneededto
installtheunitexceptscrews.

Simradrecommendsthataoneinchsteelconduit(thatthe
transducercablewillberunthrough)withaninsidethreaded
diameterofthree-quarterinchesisattachedtothegland’spacking
nipple.Thisconnectionmustbewatertight,andtheconduitmust
extendtoabovethevessel’swaterline.

329786/A

27

SimradES333-7C

(CD17008C)

A

A

J

B

C

D

G

E

F

H

I

Cableglandsforsmallhulls

Thiscableglandsmadeofplasticisdesignedforthosesmaller
vesselsthatdonotneedtobeclassied.

APackingnut(bronze).Makesurethatyoudonottodamage

thetransducercablebytighteningthepackingnuttoohard!

BRubbergasket

CPlasticdisk

DRubbergasket

EStufngtube

FBackingnut(bronze)

GBackingwasher(plastic)

HO-ring42.5x3.0N

IO-ring39.5x3.0N

JCabletotheechosounder(orajunctionbox)

Stufngtubeholediameter:36mm±1.5mm.

Applyampleamountofsealantbetweenthebackingwasher(H)
andthehullplate.

Thecableglandkitcontainsallthelistedparts,exceptthesealant.

Note

ThetwoO-ringsmustbeclean,ingoodconditionandfreeofcuts
orotherdefectswhichcouldaffecttheirwatertightintegrity.

28

329786/A

Transducercablesplicing

Transducercableglandsandsplicing

Ifyouneedtocutorlengthenthetransducercable,youmust
spliceitcorrectly.Thecablebetweenthejunctionboxandthe
transceivermustthenbesuppliedbySimrad,andthismustbe
thesametypeasusedonthetransducer(s).Tosplicethecable,
useametaljunctionboxwithEMCcableglandsandaterminal
block.Theterminalblockmustprovidesolidfasteningofthe
cableendsaswellassufcientinsulationbetweenthewires.We
recommendthatthecablescreenisconnectedtothejunction
boxchassisusingtheEMCcableglands,butifyoudothis,the
junctionboxchassism

Note

u s t n o t beconnectedtovessel’sground.

D o n o t solderthewirestogetherwithonlyelectricaltapefor
insulation.Thiswillresultinelectricalnoiseandreduced
operationalperformance.

o n o t connectthecablescreentothevessel’ sground.

D

Ordernumbers

Thecableglandsdescribedinthischapterareavailableaskits
fromSimrad.Observethefollowingordernumbers.

HulltypeItem

SteelCableglandkit,steel,

8to15mmcables

SteelCableglandkit,steel,

17to18,5mmcables

Wood/GRPCableglandkit,

bronze

SmallCableglandkit,

plastic

Ordernumber

499–037763

305609

119-038200

599-202182

329786/A

29

SimradES333-7C

STEELCONDUIT

Whyusesteelconduits?

Itisstronglyrecommendedtolayasteelconduitfromthe
transducer’scableglandtotheechosoundertransceiver,andto
pullthetransducercablethroughthisconduit.Thereareseveral
reasonsforthis.

•Itwillmakeiteasieratalaterstagetoreplacethetransducer.

•Noiseandinterferencefromotherelectricalequipmentis

greatlyreduced.

•Theriskofoodingisgreatlyreducedifthepipeisterminate

abovethewaterline.

WithasteelconduittheinstallationwillsatisfytheEU
regulationsforEMCinterference.Withoutasteelconduit,there
isariskofreducedechosounderperformance.

Steelconduitsqualitiesandshielding

Thesteelconduitmustbeunbrokenandwatertightfromthe
transducertoabovethewaterline.Fromthere,thecablecan
bepulledfurther,orajunctionboxcanbeinstalledtofacilitate
furtherconnections.Notethatthesteelconduitmustactasa
continuouselectricalscreenalltheway.
Steelconduitdimensions:

•minimum35mminnerdiameter

•minimum6mmwallthickness(4.5mmifgalvanised)

Morethatonetransducercable?

Iftwoormoretransducersareinstalledclosetoeachotheritis
possibletopulltheircablesinthesamesteelconduit,provided
theconduitdiameterisincreasedaccordingly.However,foreasy
replacementitisrecommendedthateachtransducerhasitsown
steelconduit.

30

329786/A

TRANSDUCERHANDLINGAND MAINTENANCE

YouMUSTobservethefollowingrulesforhandling,
maintenanceandpainting.

Rulesfortransducerhandling

Note

Donotliftthetransducerbythecable.

Donotexposethetransducertodirectsunlight.

Donotexposethetransducertoexcessiveheat.

Transportprotection

Transducerhandlingandmaintenance

Sometransducersaredeliveredwithacoverplateontheface
forprotectionduringtransport.Letthisplatestayonaslongas
possible,butdonotforgettoremoveitbeforethevesselgoes
intothesea.

Paintingthetransducerface

Ananti-foulingpaintmaybeappliedtothetransducerface.
Becausesomepainttypesmaybeaggressivetothepolyurethane
inthetransducerface,pleaseconsultSimrad’slistofapproved
paints.SeeApprovedanti-foulingpaintsonpage31.

Cleaningthetransducerface

Wheneveropportunityarise,forexamplewhenthevesselisdry
docked,thetransducerfacemaybecleanedforshellsandother
marinefouling.B
f a c e . Useapieceofsoftwoodoraverynegradeemerypaper.

Specialrulesforacousticwindows

Arctictankshaveacousticwindowsmadeofpolycarbonate.
T

h e s e m u s t n e i t h e r b e p a i n t e d n o r c l e a n e d w i t h c h e m i c a l s .

Acousticwindowsmustnotbeexposedtodirectsunlight.

e c a r e f u l n o t t o m a k e c u t s i n t h e t r a n s d u c e r

Approvedanti-foulingpaints

ThisisSimrad’slistofapprovedantifoulingpaintson
polyurethanetransducerhousing.

329786/A

31

SimradES333-7C

Jotun

Headofceaddress:P .O.Box2021,N-3248Sandefjord,Norway

Website:w

w w . j o t u n . c o m .

1Racing

2Non-stop

3SafeguardUniversalprimer(125micron)withAntifouling

SeaQuantumUltra(125micron)

4AntifoulingSeaguardian

InternationalMarineCoatings

Address:W orld-wideofces

Wesite:w

w w . i n t e r n a t i o n a l - m a r i n e . c o m .

1Intersleektiecoat+425FCS

•BXA386/BXA390/BXA391Grey

•HKA563/HKA570/HKA571Y ellow

•MixBXA386,BXA390andBXA391rst,thenapply.
Whendry ,mixHKA563,HKA570andHKA571,apply.

2Intersmooth360EcoloexSPC

3MicronEkstra

HempelIFACoatings

Usingself-lockingtaps

Headofceaddress:HempelA/S,Lundtoftevej150,Kgs.
Lyngby ,DK-2800Copenhagen,Denmark

Website:w

w w . h e m p e l . c o m .

1HempelA/FClassic76550

Note

Refertothemanufacturer’sdocumentationanddatasheetsfor
acompleteprocedure.

Screwconnectionsaregenerallymadesothattheycanbe
loosenedagain.However,accidentalloosening,especiallyunder
dynamicstress,mustbeavoided.Forthisreasonitisoften
necessarytouseadditionallockingdevices.Theseareoften
expensive,theycanbeusedonceonly,orreactcriticallyto
temperaturechanges.

IntroductiontoEmugeself-lockingthreads

Emugeself-lockisatapdesignwithanintegratedlockingfeature.

Standardmetricboltsareused.Theinternalthreadprovidesa
self-lockingconnection,whichcanbeusedrepeatedly.Itisnot

32

329786/A

necessarytoinvolveasecondarylockingdevice(e.g.chemical,

A B C

2

1

(CD017020B)

nylonormechanical).TheEmugeself-lockboltswithstand
vibrationsbetterthanstandard(metric)threads,becausethe
threadcontactstopsthesidewaysmovement.Thespecial
designoftheinternalthreadprolealsoprovidesamoreeven
distributionofthetighteningstressoverthewholethreadlength.
Theassemblyisjustaseasyaswithanormal(metric)thread.
Thereisnogeneralapplicablestandard(e.g.DINstandard)for
theEmugeself-lockthread.

Figure4Example,internalandexternalthreads

Transducerhandlingandmaintenance

AEmuge’ ssaw-toothproleuptopitchP≤0.7mm

BEmuge’ ssaw-toothproleuptopitchP≥0.7mm

CStandardthread

1Externalthread

2Internalthread

TheadvantagesofusingEmugeself-lockthreadinclude:

•Thethreadlockingfeatureisintegratedintheinternalthread

•Modiedprolewithrampsurfaceinthedirectionofstress

•30degreerampsurfaceprovidesself-lockingeffect

•Easyassembly

•Noassemblyerrors(forgettingthelockingdevice)possible

•Useofstandardexternalthreads(screws)withtoleranceclass
“medium”

•Evendistributionofstressoverthewholethreadlength

•Nostrippingofthreads

•Economicallyefcientlockingsystem,noadditional
componentsarenecessary

•Undiminishedholdingpowerevenunderdynamicstress

•Repeatedlooseningandre-tighteningwithoutlossoffunction

329786/A

33

SimradES333-7C

M8SL*

M10SL*

(CD017020A)

•InternalthreadscanbeproducedwithEmugetaps,cold
formingtapsorthreadmills

•Largerthreadholediameters,i.e.increasedtoollifefor
threadingtools

•Largertolerancesforthreadholediameters

Drawingstandard

Wheneverself-lockingthreadsarerequired,thisisshownon
thetechnicaldrawing.Inthecaseoftappingthroughholes,
thearrowattheendofthecenterlineillustratesthescrew-in
directionofthebolt.

Figure5Drawingexamples,self-lockingthread

34

Thedrawingisnormallyprovidedwiththefollowingtext(or
similar):

Note:Theself-lockthreadsmarkedwithSL*mustbemadein
accordancewithprocedure842–202125.Drilldiametersfor
threadsdifferfromstandard.Self-locktapscanbesuppliedby
Simrad.

Taps

Thepretensionlockingthreadself–lock(taps)frommanufacturer

Emugemustbeused.

329786/A

Figure6Exampleofuse

(CD017020C)

Transducerhandlingandmaintenance

Note

Inthecaseoftappingthroughholesitisimportantthatthe
proleoftheEmugeself-lockthreadsisinthecorrectdirection
comparedwiththeenteringdirectionofthebolt.

Gauge

UseEmugeself-lockgauges.Notethatthegaugemustbeused
inthecorrectdirection.

Self-locktapsprovidedbySimrad

Thefollowingself-locktapsareonstockatSimrad,andcanbe
orderedfromus.

Threads

M6ø5.2700-078838

M8ø7.0700-078531

M10ø8.8700-078408

M12ø10.7700-078409

M16ø14.5700-078410

Drilldiameterfor
threads

Supplierandmanufacturer

Part.no

Norwegiansupplieris:

TingstadAS,P.O.Box83,Kalbakken,0902Oslo,Norway

h

t t p : / / w w w . t i n g s t a d . n o

Manufactureris:

EMUGE-WerkRichardGlimpel,NurnbergerStrasse96-100,
D-90607Lauf,Germany

h

t t p : / / w w w . e m u g e . d e

329786/A

35

SimradES333-7C

DRAWINGFILE

Thischaptercontainsrelevantdrawingsrelatedtotheelectrical
andphysicalinstallationoftheES333-7CSplit-beamtransducer.

Note

Themechanicaldrawingsareforinformationandguidanceonly.
Theyarenotinscale.Alldimensionsareinmmunlessotherwise
isnoted.

TheoriginalinstallationdrawingsareavailableonPDFand/or
AutoCadformat.Visitw

Topics

•Echosounderconnectionsonpage36

•Outlinedimensionsandinstallationdrawingsonpage39

w w . s i m r a d . c o m todownload.

Echosounderconnections

Observethefollowinginformationrelatedtoelectrical
connectionoftheES333-7CSplit-beamtransducer.

Topics

•Splicingthetransducercableonpage36

•GeneralPurposeTransceiver(GPT)wiringonpage37

•GeneralPurposeTransceiver(GPT)transducerplug

assemblyonpage38

Splicingthetransducercable

Ifyouneedtosplicethetransducercable,itisveryimportant
tousethecorrectcable,andtoavoidgroundloops.Westrongly
recommendtheuseofajunctionbox.W ealsorecommendthat
youinstallthetransducercableinasteelconduit.

Relatedtopics

•Transducercablesplicingonpage29

•Steelconduitonpage30

•GeneralPurposeTransceiver(GPT)transducerplug

assemblyonpage38

36

329786/A

GeneralPurposeTransceiver(GPT)wiring

M

E

F

J

H

D

C

K

L

A

B

N

Transducer
cable

E

H

D

C

F

J

A
B

JunctionBox(1:1)

(Optional)

GPT Transducer

socket

Channel1

Channel2

Channel3

Channel4

Connecttoplughousing

W802-4

Rev.E

Singlefrequency ,splitbeamtermination

Forward

Starboard

Port

Sectionsseenfromtop

ofthetransducer

2

1

3

4

2 1

3

4

White

Blue

White

Blue

Blue

Orange

Green

Brown

White

White

White

White

White

Blue

White

Blue

Black

Black

Black

Black

Black

Black

Black

Black

Screen

Alternativecable

colours

Drawingle

329786/A

37

SimradES333-7C

Rubbersleeve

Rubbersleeve

Retainingring

Contactbody

Plug

fasteningring

Upperplugcase

Bottomcap

andcableclamp

Washers

Heat-shrinkabletubing

Lowerplugcase

Outerscreentogetherwithinnerscreen.
Drainwire,foldbackoverjacket
andtemporaryfastenedwithtape.

Outerscreenandinnerscreenbraidwire
untapedandspreadoutunderwasher

CD010219APage1of1

824-201575Rev .C

Note:
Allmeasurementsareinmm.
Thedrawingisnotinscale.

GeneralPurposeTransceiver(GPT) transducerplugassembly

38

329786/A

Outlinedimensionsandinstallationdrawings

Note

Observethe32Nmtorquewhenthetransducerismountedusing
themountingandclampingrings.

Observethe17Nmmaximumtorquewhenthetransduceris
mountedusingthethreadedinsertsonthetransducerbody.

Inadditiontothedrawingsavailableinthischapter,anadditional
drawingisprovidedonthewebsite.Thisisdrawing599–203664
describinganoptionalsteeltankforthetransducer.

Topics

•Outlinedimensions[318747]onpage40

•Recommendedarrangement[204678]onpage41

Drawingle

•Mountingring[204449]onpage43

•Clampingring[204451]onpage45

329786/A

39

SimradES333-7C

Outlinedimensions[318747]

40

329786/A

Recommendedarrangement[204678]

Drawingle

329786/A

41

SimradES333-7C

42

329786/A

Mountingring[204449]

138

M10Self-lock
(6holes)
Borediameter8.8mm

ø0.2

30°

60°

CD017018FPage1of2

871-204449Rev .B

Note:
Allmeasurementsareinmm.
Thedrawingisnotinscale.

Material:
Steeltube,ST .52-3N(DIN17121),ø193.7/ø83.7x100

Surfacetreatment:
SandblastedtoSA 2.5,onecoatingofredferricoxideprimer

M10Self-locktaps:
Refertospecificdescription.Self-locktapscanbeprovidedbySimrad.

Drawingle

329786/A

43

SimradES333-7C

R1

85±1

20±2

30±1

ø166±1

ø88±1

ø180±1

60+0.1/-0

15+0.3/-0

0.075

45°

ø162+0.5/-0

ø121+0.5/-0

6.3

R0.75max

Champer3x45°

CD017018FPage2of2

871-204449Rev .B

Note:
Allmeasurementsareinmm.
Thedrawingisnotinscale.

44

329786/A

Clampingring[204451]

ø11

60

o

138

50±0.1

R5.5

6.3
()

R1

R1

30

o

ø0.2

CD017016GPage1of2

871-204451Rev .A

Note:
Allmeasurementsareinmm.
Thedrawingisnotinscale.

Drawingle

329786/A

45

SimradES333-7C

R0.5

R0.5

R1.5

10

ø18

ø160+0.5/-0

ø101+0.5/-0

(15)

CD017016GPage2of2

871-204451Rev .A

Note:
Allmeasurementsareinmm.
Thedrawingisnotinscale.

Material:15mmsteelplate,St37/St52

46

329786/A

Index

Index

A

About,5

informationinthis

manual,5

Acousticwindow

example,21

installation,20
Additionalinformation,5
Airoutlet

example,13,15
Anti-fouling

paint,31
Approval

maritimeauthorities,5
Arrangement

drawing,41

B

Blister

Commonguidelines,16

installation,12

physicallocation,17

toe-in,16
Boundarywaterlayer,8
Bowthrusters

noise,9
Boxkeel

example,18

installation,17

C

Cable

transducer,splicing,29
Cablegland

about,25

GRPhull,27

smallhull,28

steelhull,26

woodenhull,27
Clampingring

blister,12

drawing,45

example,13
Clampingrings,12,17,

19–20,22

Commonguidelines

blister,16
Conduit

steel,30

D

Diameter

steelconduit,30

Dimensions

drawing,40

Drawing

arrangement,41
Clampingring,45
GPTTransducerplug,38
mountingarrangement,41
Mountingring,43

outlinedimensions,40
Drawingle,36
Dropkeel

installation,23

E

EMCinterference,30
Emuge,32
Example

Acousticwindow,21

Airoutlet,13,15

boxkeel,18

Clampingring,13

ushmounting,20

Insidethehull,22

Mountingring,13,15

Streamlinedblister,13,15

F

Flushmounting

example,20

steeltanl,19

G

GPTTransducerplug

drawing,38
GRPhull

cablegland,27

H

Handling,31
Handlingrules,31
Heat,excessive

doNOTexpose,31
Hullunit

installation,24

I

Inclination

angle,9
Insidethehull

example,22

installation,21

Installation

drawings,6,36
hardware,6
responsibility,6

Installationmethod

Acousticwindow,20
Blister,12
Boxkeel,17
Dropkeel,23
Flushmounting,19
Hullunit,24
Insidethehull,21
Retractable,24
Steeltank,19

Introduction,6

L

Lifting,31
Location

recommendation,10

M

Maintenance,31
Maritimeauthorities

approval,5

Mountingarrangement

drawing,41

Mountingring

blister,12
drawing,43
example,13,15

Mountingrings,12,17,

19–20,22

N

Noise

boundarywaterlayers,8
bowthrusters,9
propeller,9
protrudingobjects,7

O

Ordernumber

transducer,6

Outlinedimensions

drawing,40

P

Paint

anti-fouling,31

Physicaldimensions

329786/A

47

SimradES333-7C

drawing,40

Physicallocation

blister,17

Propeller

noise,9
Protrudingobjects,7
Purpose

thismanual,5

R

Retractable

installation,24

S

Self-lockingtaps,32
Shielding

steelconduit,30
Simradwebsite,5
Smoothsurface,12,18–20,22
Splicing

transducercable,29
Steelconduit

diameter,30

qualities,30

shielding,30

why,30
Steelhull

cablegland,26
Steeltank

ushmounting,19
Streamlinedblister

example,13,15
Sunlight

doNOTexpose,31
Supportbar,12,18–19
Surface

smooth,12,18–20,22

T

Taps,self-locking,32
Toe-in

blister,16
Transducer

lifting,31

ordernumber,6

recommendedlocation,10
Transducercable

splicing,29
Transducerplug

drawing,38

W

Woodenhull

cablegland,27

48

329786/A

Index

329786/A

49

ISBN-13:978-82-8066-104-3

Kong s be rgM a rit im eA S
St r a nd prom e na de n5 0
P.O. Box1 11
N- 31 9 1H o rte n ,N orwa y

S im r a d

Tele pho n e :+ 473 30 34 00 0
Tele fa x:+ 473 30 42 98 7

cont act@s im rad .com

w w w .s im r a d . c o m

©

2009KongsbergMaritimeAS