Kongsberg EM 2040 User manual

Installation manual
EM 2040
Slim Processing Unit

391932/C
April2015©KongsbergMaritimeAS
KongsbergEM2040
ProcessingUnit
Installation

KongsbergMaritimeAS
www.kongsberg.com
Copyright
©CopyrightKongsbergMaritimeAS
TheinformationcontainedinthisdocumentremainsthesolepropertyofKongsbergMaritimeAS.Nopart
ofthisdocumentmaybecopiedorreproducedinanyformorbyanymeans,andtheinformationcontained
withinitisnottobecommunicatedtoathirdparty,withoutthepriorwrittenconsentofKongsberg
MaritimeAS.Thedocument,oranypartofit,maynotbetranslatedtoanyotherlanguagewithoutthe
writtenapprovalfromKongsbergMaritimeAS.
Disclaimer
KongsbergMaritimeASendeavourstoensurethatallinformationinthisdocumentiscorrectandfairly
stated,butdoesnotacceptliabilityforanyerrorsoromissions.
Warning
Theequipmenttowhichthismanualappliesmustonlybeusedforthepurposeforwhichitwasdesigned.
Improperuseormaintenancemaycausedamagetotheequipmentand/orinjurytopersonnel.Allusers
mustbefamiliarwiththecontentsoftheappropriatemanualsbeforeattemptingtoinstall,operate,
maintainorinanyotherwayworkontheequipment.
KongsbergMaritimeASdisclaimsanyresponsibilityfordamageorinjurycausedbyimproperinstallation,
useormaintenanceoftheequipment.
Supportinformation
Ifyourequiremaintenanceorrepair,contactyourlocaldealer.Youcanalsocontactususingthefollowing
address:[email protected].Ifyouneedinformationaboutourotherproducts,
visithttp://www.km.kongsberg.com.

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Tableofcontents
ABOUTTHISMANUAL..............................................................5
KONGSBERGEM2040..............................................................7
SystemDescription............................................................................................................7
Systemdiagram..................................................................................................................9
Systemunits.....................................................................................................................12
Transducerdescription...........................................................................................12
EM2040ProcessingUnitdescription....................................................................13
HydrographicWorkStationdescription.................................................................13
Ethernetswitch.......................................................................................................13
RemoteControlUnit(K-Rem)description............................................................14
CABLELAYOUTANDINTERCONNECTIONS.............................15
Readthisrst...................................................................................................................16
Cableplans.......................................................................................................................17
SingleRXcableplan,ProcessingUnit..................................................................18
DualRXcableplan,ProcessingUnit.....................................................................19
DualTXcableplan,ProcessingUnit.....................................................................20
SingleRXwithdualswathcableplan,ProcessingUnit........................................21
DualRXwithdualswathcableplan,ProcessingUnit...........................................22
Topsidecableplan..................................................................................................24
ListofEM2040cables....................................................................................................25
Cabledrawingsandspecications...................................................................................27
RS–232seriallineusingthree3wiresandRJ45connector..................................28
RS-422seriallineusingvewiresandRJ45connector........................................29
1PPS(Onepulsepersecond)usingacoaxcable...................................................30
Remotecontrol.......................................................................................................32
RemoteControlusingK-Rem................................................................................33
Notusingtheremotecontroloption.......................................................................34
ExternalSynchronization.......................................................................................35
Transmittransducercable.......................................................................................39
Receivetransducercable........................................................................................42
TXtoRXtransducercable.....................................................................................45
TXtodualRXtransducercable.............................................................................48
DRAWINGFILE......................................................................51
ProcessingUnitdimensions.............................................................................................52
HydrographicWorkStationoutlinedimensions..............................................................53
RemoteControlUnit(K-REM)outlinedimensions........................................................55
TECHNICALSPECIFICATIONS................................................57
Installation

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Weightsandoutlinedimensions......................................................................................57
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Aboutthismanual
ObservethisgeneralinformationabouttheEM2040Installation;itspurposeandtarget
audience.
Purpose
Thepurposeofthismanualistoprovidetheinformationandbasicdrawingsrequiredfor
thephysicalinstallationoftheEM2040.
FormoredetailedinformationaboutthepracticaluseoftheEM2040,refertothe
Operatormanualand/ortheReferencemanual.
Targetaudience
Themanualisintendedfortechnicalpersonnel;suchasskilledshipyardworkers,
electricians,qualiedengineersandnavalarchitects.Itisassumedthatyouunderstand
thegeneralprinciplesofmaritimeelectronicequipment.Youmustalsobefamiliarwith
computerhardware,interfacetechnologyandinstallationofelectronicandmechanical
products.
Weassumethatyouarefamiliarwiththebasicacousticprinciplesofsoundinwater,
andthatyouhavesomeexperiencewithmultibeamand/orsinglebeamechosoundersin
hydrographicapplications.
Installationinstructions
Youmustfollowtheinstructionsinthismanualtoensureoptimalperformance.Asa
guide,installationproceduresarepresentedintheordertheymustbedone.
Theequipmentdescribedinthismanualincludesthecompletesystemwithrelevant
cabinets.Unitsprovidedlocallybythecustomer,installationshipyardorlocal
representativearenotdescribed.
Themanualalsodenestheequipmentresponsibility,andprovidesapplicable
instructionsforunpackingandstorageofunits.
Aboutthismanual

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Note
Youmustfollowtheinstructionsgiveninthismanual.Ifnotitmayaffectthewarranty.
KongsbergMaritimeASwillacceptnoresponsibilityforanydamageorinjurytothe
system,vesselorpersonnelcausedbyequipmentthathasbeenincorrectlyinstalledor
maintained,orbydrawings,instructionsorproceduresthathavenotbeenprepared
byus.
Installationdrawings
Thecustomer,ortheshipyardcontractedtodotheinstallation,mustproviderelevant
detailedvesselspecicmechanicaldrawings.
Note
Ifrequired,alldrawingsprovidedbytheshipyardforthephysicalinstallationof
theEM2040mustbeapprovedbythevessel’ snationalregistryandcorresponding
maritimeauthorityand/orclassicationsociety.Suchapprovalmustbeobtainedbefore
theinstallationcanbegin.Theshipownerandshipyarddoingtheinstallationare
responsibleforobtainingandpayingforsuchapproval.
KongsbergMaritimeASmay,onspecialorder,provideassistancetothesedrawings.
Applicablegenericoutlinedimensionandproductionsdrawingsareprovidedinthe
Drawinglechapter.
On-lineinformation
ForinformationabouttheEM2040andotherproductsfromKongsbergMaritime,
visitourwebsiteon
•http://www.km.kongsberg.com
Registeredtrademarks
Observetheregisteredtrademarksthatapply.
Windows®,WindowsXP®,andWindows®7areeitherregisteredtrademarks,or
trademarksofMicrosoftCorporationintheUnitedStatesand/orothercountries.
KongsbergEM2040

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KongsbergEM2040
Topics
SystemDescription,page7
Systemdiagram,page9
Systemunits,page12
SystemDescription
TheKongsbergEM2040isanadvancedmultibeamechosounder.
Keyfeaturesinclude:
•Frequencyrangefrom200to400kHz
•FMchirpallowingmuchlongerrangecapability(depthandcoverage)compared
toCWpulses
•Completeroll,pitchandyawstabilization
•Neareldfocusingonbothtransmitandreceive
•Operateswithveryshortpulselengths–shortestpulseis25microseconds
•Thedepthratingofthesubseapartsis6000metres
•IHO-S44specialordercompliant
•TheEM2040hastwoTXarraysizes:
–EM2040-04(0.4degreesat400kHz)
–EM2040-07(0.7degreesat400kHz)
TheEM2040multibeamechosounderistherstsystemtobringalltheadvanced
featuresofdeepwatermultibeamstothenearbottomsoundingenvironment.
TheEM2040operatingbandwidthisfrom200to400kHz,whichisafulloctave,and
thisisachievedusingthestandardtransducers.Threestandardmodesareavailable.300
kHzisusedfornormaloperation,givinganoptimumbalancebetweenhighresolution,
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depthcapabilityandtoleranceofperformancedeterioratingfactorssuchaswatercolumn
sediments.200kHzisavailableformeetingrequirementstooperateatthestandard
hydrographicsinglebeamfrequency,butalsotoachievethebestdepthcapability.400
kHzisprovidedforinspectionworkwiththeutmostresolution.
EM2040hasthefunctionalityofthelowerfrequencyEMsystems,andthesmallsizeand
weightadvantageofthehighfrequencysystems,aswellasbeamwidthof0.4degrees.
FMpulsesareusedtoincreasethemaximumrangecapabilitywithoutsacricing
resolution.Example:12msFMwith1.7kHzsweepbandwidthcomparedto600usCW
pulse(1.7kHzbandwidth):Theresolutionisthesamesincethebandwidthisthesame.
ThesignaltonoiseratioinFMmodeisincreasedby13dB.Thishasthesameeffectas
increasingthetransmitpowerlevelby13dB.Therangeresolution(denedascT/2)for
600usCWpulseis45cm.A4.5msCWpulsewouldgivethesamecoverageas12ms
FM.ButthisCWpulsewouldgivearangeresolutionof200cm(=4.5*45cm).
Thenormallyrecommendedsurveyfrequencyis300kHz.Atthisfrequencythe
bandwidthusedismorethan75kHzwiththreeangularsectorsrunningatseparate
frequencies.Withdualswathsixfrequenciesareused(withshortestpulsethetotal
bandwidtusedismorethan100kHz).Theminimumpulselengthis70microsecondsin
threesectors,andreducedto35microsecondsusingonesector.With35μspulsethe
rangeresolution(denedascτ/2)is26mm.FordeepwatersFMchirpisemployedwith
abandwidthof1.7kHz.Thisallowsaswathwidthintheorderof600mandadepth
capabilityofabout400mincoldoceanwaters.
The200kHzfrequencymodeissimilartothe300kHzmode.ItusesthesameCWpulse
lengths,whiletheFMchirppulselengthisincreased.Therangeanddepthresolutionis
thesame.Normallytwosectorsareusedperswath,butsinglesectorcanalsobeused.At
thisfrequencytheabsorptioninthewaterislowerthanat300kHz,resultinginincreased
swathwidthanddepthcapability.IncoldoceanwaterswithFMchirpaswathwidthof
700mcanbeexpectedandapproximately500mdepthcapability.
The400kHzfrequencymodeisintendedforhighresolutioninspectionwork.Veryshort
transmitpulsesandwidereceiverbandwidthisused.Theoperatormayselectbetween
oneandthreetransmitsectors.WithasingleRXtransducerthecoveragelimitis120
degrees(±60degrees),andwithdualRXthecoverageis180degrees(±90degrees).The
shortestpulseusedis25μsgivingarangeresolutionlessthan20mm(cτ/2).Itisalso
possibletorundualswath,butnotusingtheshortestpulselength.
TheEM2040ismodular,allowingtheusertotailorthebeamwidthstotheoperational
requirements,0.4by0.7degreesor0.7by0.7degrees.Thetransmitfanisdividedinto
threesectorspingingsimultaneouslyatseparatefrequencies.Thisensuresaverystrong
andbenecialdampeningofmultibounceinterferencewhichonsimplersystemsoften
isseenatbeamanglesfrom60degreesandoutwards.TheEM2040hasdualswath
capability,allowingasufcientsoundingdensityalongtrackatareasonablevesselspeed.
EM2040alsohasascanningmode,i.e.onesectoristransmittedatatime,givingthe
possibilitytousetheshortestpulselengthwhilestillkeepingthefullswathcoverage.
ThestandarddepthratingoftheEM2040subseapartsis6000m.Thesystemisideal
foruseonsubseavehiclessuchasAUVsorROVs.Allanalogelectronicsarecontained
KongsbergEM2040