Simrad SU90 - Environmental Inspection of the Transceiver Unit

26
409977/B
EnvironmentalinspectionoftheTransceiver
Unit
Satisfactoryenvironmentalconditionsareimportanttoensurelongandtrouble-free
operationoftheTransceiverUnit.AnenvironmentalinspectionoftheTransceiverUnit
isrequiredtoverifythequalityofthesonarroom.
Prerequisites
TheSU90isinstalledasspeciedintheSU90Installationmanual.Youneedthe
followingequipment:
•Thermometer
•Hygrometer
Context
ThesonarroomisthecompartmentinwhichtheTransceiverUnitisinstalled.
Procedure
1Makesurethatthecompartment("sonarroom")inwhichtheTransceiverUnitis
installediscleananddry.
2Makesurethattheambienttemperatureinthesonarroommeetstheenvironmental
specications.
aMakesurethatthetemperatureinthesonarroomiscontrolledusingasuitable
ventilationsystem.
bRecordthetypeofventilationsystemthatisinstalled.
cMakesurethatthetemperatureinthesonarroomismonitored.
dMeasuretheambienttemperatureinthesonarroomwhentheSU90isswitched
off.
eRecordthevalueintheresulttable.
3Makesurethattherelativehumidityinthesonarroommeetstheenvironmental
specications.
aMeasuretherelativehumidityinthesonarroom.
bRecordthevalueintheresulttable.
430minutesaftertheSU90hasbeenswitchedonandputtonormaloperation,
measuretheambienttemperatureonemoretime.
Recordthevalueintheresulttable.
530minutesaftertheSU90hasbeenswitchedonandputtonormaloperation,
measuretherelativehumidityonemoretime.
Recordthevalueintheresulttable.
SimradSU90HarbourAcceptanceTest