Installation manual

Displayviews

Surfaceechogram

Thisechogramisrelatedtotheseasurface.Startdepth(upperechogramboundary)and

verticalrange(acrossechogram)aremanuallyselectedbytheStartDepthandRange

buttonsontheMainmenu.

Figure14Surfaceechogram

AThisisthestartdepthofthe

echogram.

Inasurfaceechogramitis

normallysetupwithStartRange

=0,ortoasmallvaluetostart

theechogramimmediatelyunder

thekeel.

BThisisthebottom.

Thetotalechogramrange(A)

to(F)isdenedwiththeRange

buttonontheMainmenu.

Unlessspecicconditionsapply,

oryouwishtocontroltherange

manually,useRange=Auto.

CThistextidentiesthetransducer

usedtocreatetheechogram.

DThisisthescopeview.

Thisviewpresentsindividual

colourlines.Thecolourand

lengthofeachlinereectsthe

receivedechoamplitude.

EBydefault,the“pingtime”and

thedepthrangeisshowninthebottomleftsideoftheechogram.Inthebottomright

corner,the“pingtime”isthesameascurrent.Thisinformationcanbechanged

usingtheoptionsontheHorizontalAxistabintheEchogramdialog.

FThisisthelowerendofthedepthrange.Itisnormallyafewmetersbelowthe

bottomcontour,dependingonthechosenrange.

Example5StartRangeinasurfacerelatedechogram

Inasurfaceechogram,settheStartRangevalueto0meters.Thiswill

maketheechogramstartfromtheseasurface(providedthatthetransducer

offsethasbeendened).SetRangetothecurrentdepthplus20meters.The

echogramwillnowshowtheareafromtheseasurfaceanddownto20

meters“below”thebottom.Thebottomcontouriseasilydetectedwhen

thedepthchanges.

ThebiomassisautomaticallycalculatedbasedonchoicesyoumakeintheCalculation

Intervaldialog;withinagiventimeframe,adenednumberofpings,oraportionof

theechogramview.Thedataisthentakenfromanechoareastartingimmediatelyafter

thetransmitpulse,andendingjustoverthedetecteddepth.Ifyouhavelimitedyour

343539/B