Simrad ST90 - Sonar Room Steps

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b[Sonarroom]Whenthetransducershaftstops,verifythatthecorrectbottom
positionhasbeenreached.
9Hoistthetransducertoitsupperposition.
aOntheOperatingPanel,pressUp.
b[Sonarroom]Whenthetransducershaftstops,verifythatthecorrectupper
positionhasbeenreached.
10Notifythesonarroomtodothenextstep.
11[Sonarroom]LocatetheHoist/LowerSwitch(S302).SettheswitchtopositionSTOP.
12PowerdowntheST90.
IfthetransducerisloweredwhenyouturnofftheST90,itisautomaticallyretracted
toitsupperposition.TheTransceiverUnitisturnedoff.TheST90programcloses
down.
13Notifythesonarroomthatthetestisnished.
Result
Requirements
Results
Theloweringandhoistingfunctionality-asseenfromthebridge-is
operational.
Dateandsignature:
Sonarroomsteps
ThehullunitprovidedwiththeST90isdesignedtolowerthetransducerdownbelow
theship’shullwhentheST90shallbeused.ThisisakeyfunctionalityoftheST90.
Itisveryimportantthatthehoist/lowerfunctionistestedbeforetheST90isputto
operationaluse.Inordertotestthelowerandhoistfunctionalityofthehullunit,two
tasksmustbedonesimultaneously.Thesetasksaredoneinthesonarroom.
Prerequisites
TheST90isinstalledasspeciedintheST90Installationmanual.TheST90systemis
turnedonandoperatesnormally.Neithertoolsnorinstrumentsarerequired.
Context
Certainstepsinthetwoproceduresarelocationspecic.Thestepsmarked[Bridge]
aredoneonthebridge.
SimradST90HarbourAcceptanceTest