Simrad ST90 - Starting up the Hull Unit; Hull Unit Description

442703/B
257
Startingupthehullunit
Topics
Hullunitdescription,page257
Hullunitfamiliarization,page260
MotorControlUnitfamiliarization,page261
InitialsafetycheckoftheMotorControlUnit,page262
Checkingthehostingmotor’s3-phaseACconnections,page263
Connectingthe3-phaseACpowertotheMotorControlUnit,page265
Ventingthetransducershaftsleeve,page266
Checkingthe3-phaseconnectionforcorrectrotation,page268
CheckingtheoperationoftheHoistingandLoweringcontactors,page270
Checkingthetransducerloweringandhoistingfunctionality,page273
Hullunitdescription
ThehullunitprovidedwiththeST90isdesignedtolowerthetransducerdownbelowthe
ship’shullwhentheST90shallbeused.WhentheST90isswitchedoff,thetransducer
ishoistedforprotection.
TheST90Fishndingsonarcanbeprovidedwithoneofthefollowinghullunits.
HullUnit
Partnumber
Loweringdepth
Transducercable
Maximumspeed
4414864.6m ST92
441488
1.2m
7m
21knots
4385204.6m ST93
441490
1.6m
7m
16knots
4414924.6m ST94
441494
2.1m
7m
11knots
Outlinedimensionsdrawings:
-ST92:447567
-ST93:435546
-ST94:447545
Thesametransducerisusedonallhullunittypes.Thesameinstallationtrunkisusedon
allhullunittypes.
Settingtowork