Simrad ES80 - Page 343

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Description
Inordertoobtainaccuratedepth
readingsandshechoes,itisvery
importantthatthesoundspeed
throughthewaterissetcorrectly.
Severalparametersarerequiredto
calculatethecorrectsoundspeed
value.Iftheseparametersarenot
knowntoyou,usethedefaultvalue
1494m/s.Thisisatypicalmean
valueforsoundspeed.
Details
Conditions
Usethissettingtosetupthe
ES80foroperationinfreshor
saltwater.
Soundtravelswithdifferent
speedsinsaltandfreshwater.Forthisreason,itisimportantthattheES80knows
yourwaterprole.
ThedefaultsettingisSalt.
Parameters
Usethesesettingstoprovidemanualvalues.
•Temperature
Providethecurrentwatertemperature.Oncethesalinityandtemperature
informationisprovided,theES80calculatesthesoundspeedandabsorption.
Inputanytemperaturebetween0and+40°C.
•Salinity
Providethecurrentsalinity.Oncethesalinityandtemperatureinformation
isprovided,theES80calculatesthesoundspeedandabsorption.Inputany
salinityvaluebetween0to40PSU.
SoundSpeed
Inordertoobtainaccuratedepthreadingsandshechoes,itisveryimportantthat
thesoundspeedthroughthewaterissetcorrectly.
•Calculated
SelectCalculatedtoallowtheES80tocalculatethesoundspeedandthe
absorptionbasedontheparametersyouhavesupplied.
•Manual
Functionsanddialogboxes