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442703/B

353

•Asmuchmachineryaspossiblemustbeswitchedoff.Itisparticularlyimportantto

switchoffelectricalmotors,aswellascoolingsystemsandhydraulicpumpsthat

maycauseelectricnoise.

•Topreventinterference,allotherhydroacousticinstrumentsmustbeswitchedoff.

Context

BymeansoftheBITE(Built-InTestEquipment)functionality,youcaneasilydetermine

iftheST90hardwareisoperational.Andmostimportant,youcanmakesurethatallthe

transceiverschannelsandthetransducerelementsarefunctional.Toopenthedifferent

pagesintheBITE(Built-InTestEquipment)dialogbox,usethelarge"buttons"onthe

lefthandside.Eachbuttonprovidesasmallcolourcodedindicator.

•Noindicator:StatusisOK.Noactionsarenecessary.

•Yellow:Thisisawarning.Acloserinvestigationisrecommended.

•Red:Thisisanalarm.Acloserinvestigationisrequired.

•Blue:AdevicemonitoredbytheBITEsystemisdisabled.

•Grey:Noinformationisavailable.

Note

TheBITE(Built-InTestEquipment)dialogboxandfunctionalityisonlyprovidedfor

performancemonitoring.ThefunctionalityisnotrequiredfornormaluseoftheST90.

TheBITEdialogboxdoesnotpermityoutochangeanyoperationalparameters.

Procedure

1Makesurethatyouhavesufcientwaterdepthbelowthekeelbeforeyoulower

thetransducer.

2Lowerthetransducertoitsbottomposition.

3Selectthedefaultsettings.

aOntheMainmenu,selectUserSettings.

bObservetheFactorySettingslist.

cSelectthesettingyouwishtouse.

dSelectActivateSelectedSetting.

eSelectOKtoapplyyourchangesandclosetheUserSettingsdialogbox.

4Makethefollowingpreparations.

aOntheMainmenu:

•SetRangeto1500m.

bOpentheOperationmenu.

•SetTXPowertoOff.

cOpentheActivemenu.

Settingtowork

Simrad ST90 Installation Manual

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