User manual

Operationalprocedures
2Toactivatethealarms:
aDenevaluesforminimumandmaximumdepth.
bClicktoenableUseAlarmSoundifthisisdesired.
cInthetableatthebottomoftheDepthAlarmsdialog,clicktoactivatewhich
frequencychanneltobeusedforbottomdetection.
Thechoiceyoumakeherewillnothaveanyeffectontheechograms.Youonly
choosewhichfrequencychannelto“feed”thealarmsystem.
dClickOKtosavethecurrentsettingsandclosethedialog.
3Todisablealldepthalarms:
aClicktochooseDisableAlarmsifthisisdesired.
bObservethattheDepthAlarmseldchangesapperanceto
indicateyourchoice.
cClickOKtosavethecurrentsettingsandclosethedialog.
4Todisableonlyminimumor
maximumdepthalarm:
aSettherelevantalarmlimitto0(zero).
bClickOKtosavethecurrentsettingsandclosethedialog.
Sizedistribution,biomassandshdensity
procedures
Ifyouusea“splitbeam”transduceronyourES70,itwillyouprovideyouwith
informationaboutthesizedistributionanddensityoftheshbeneaththehull.
Topics
•Monitoringtheshsizedistributiononpage75
•Adjustingtheshlengthforcorrectcalculationsonpage77
•Monitoringthecurrentbiomassonpage77
•Enablingthebiomasslineonpage78
Monitoringtheshsizedistribution
ThesizedistributionispresentedusingtheSizeDistributioninformationpane.
→SizeDistributioninformationpaneonpage138
TheSizeDistributioninformationpaneshowsahistogramofthesingleshechoes
detected.ThecalculationisbasedontheparametersyouhaveselectedintheCalculation
Intervaldialog;time,pingorachosenpartofthecurrentview.Itthusprovidesavisual
indicationonhowlargetheshesarewithinthechoseninterval.
Onlytheshesdetectedbythecurrenttransducerfrequencyareshown.
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