Simrad ST90 - Environmental Inspection of the Transceiver Unit

442703/B
253
7Makesurethattherearenocorrosiveattacksonthehullunit,mountingange,
installationtrunk,supportbracketsorotherpartsoftheinstallation.
Result
Requirements
Results
Thehullunitiscorrectlyinstalledwitheasyaccessformaintenanceand
replacementofparts.
Thecompartmentinwhichthehullunitisinstalled("sonarroom")isclean
anddry.
Allcablesareproperlymountedwithenoughslack.
Thetransducercablescanmovefreelywhenthetransducerislowered
andhoisted.
Theweldsandmechanicalbracketsthatsupportthegantryarestrong
enoughtoholdthehullunitsecurelyinplaceunderalloperatingconditions.
Theweldsandbracketshavebeenpaintedwiththecorrectpreservation
mediumtopreventcorrosion.
Therearenocorrosiveattacks.
Dateandsignature:
Relatedtopics
Settingtoworksummary,page242
InspectingtheST90installation,page245
EnvironmentalinspectionoftheTransceiverUnit
Satisfactoryenvironmentalconditionsareimportanttoensurelongandtrouble-free
operationoftheTransceiverUnit.AnenvironmentalinspectionoftheTransceiverUnit
isrequiredtoverifythequalityofthesonarroom.
Prerequisites
TheST90isinstalledasspeciedinthismanual.Youneedthefollowingequipment:
•Thermometer
•Hygrometer
Context
ThesonarroomisthecompartmentinwhichtheTransceiverUnitisinstalled.
Procedure
1Makesurethatthecompartment("sonarroom")inwhichtheTransceiverUnitis
installediscleananddry.
2Makesurethattheambienttemperatureinthesonarroommeetstheenvironmental
specications.
Settingtowork