Simrad ST90 - Page 256

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442703/B
aMakesurethatthetemperatureinthesonarroomiscontrolledusingasuitable
ventilationsystem.
bRecordthetypeofventilationsystemthatisinstalled.
cMakesurethatthetemperatureinthesonarroomismonitored.
dMeasuretheambienttemperatureinthesonarroomwhentheST90isswitched
off.
eRecordthevalueintheresulttable.
3Makesurethattherelativehumidityinthesonarroommeetstheenvironmental
specications.
aMeasuretherelativehumidityinthesonarroom.
bRecordthevalueintheresulttable.
430minutesaftertheST90hasbeenswitchedonandputtonormaloperation,
measuretheambienttemperatureonemoretime.
Recordthevalueintheresulttable.
530minutesaftertheST90hasbeenswitchedonandputtonormaloperation,
measuretherelativehumidityonemoretime.
Recordthevalueintheresulttable.
6Makesurethatthesonarroom,theST90TransceiverUnitandthemounting
bracketshavenotbeesubjectedtocorrosiveattacks.
Result
ST90turnedoffST90turnedon
Ambienttemperature:
Relativehumidity:
Requirements
Results
ThecompartmentinwhichtheTransceiverUnitisinstalled("sonarroom")
iscleananddry.
Aventilationsystemisinstalled.
Recordthetypeofventilationsystemthatisinstalled.
Therearenocorrosiveattacks.
Dateandsignature:
SimradST90InstallationManual