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NorthStar Navigation 491 installation manual Echo Sounder Installation Manual

Models: 491

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491 ECHO SOUNDER

INSTALLATION MANUAL

Rev A

Part Number GM495

Northstar	www.NorthstarNav.com
a unit of Brunswick New Technologies Marine Electronics	www.NorthstarNav.com
30 Sudbury Road	Service: 978/897-6600
Acton, Massachusetts 01720	Sales: 800/628-4487

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NorthStar Navigation 491 installation manual Echo Sounder Installation Manual

Contents

Echo Sounder Installation Manual Page Table of Contents Page Welcome to the Northstar Section ONE IntroductionWho should read this manual Scope of this manual Installation considerations Safety considerations Section TWO Installing the transducerAirmar transducer elements Northstar-recommended transducersDo not mount the transducer Choosing a mounting locationHull thickness limits LWL Installing the transducerLWL Using anti-fouling paintDetail Cleaning a transducerPage Section Three Installing Section Three Installing Installation Manual Revision a Echo sounder system components with the Northstar 961/962 System components190 dia 360 dia MountingConnecting the 491 to the 961/962 WiringInterface cable connection from 961/962 to Cable connection between the 961/962Connecting the 491 to the 957/958 491-to-transducer connector pin wiring Connecting the 491 to a transducerTurning the 491 on Initial checkoutFor the 961/962 Setting up the echo sounder Installation test checklistTurning the 491 off For the 957/958/6000iStatus LED Section Four Troubleshooting and servicing961/962 echo sounder system troubleshooting 957/958/6000i echo sounder system troubleshooting Contacting Northstar Getting technical supportHearing from you Ordering replacement parts ServicingReturning a 491 for service 491 technical speciﬁcations Appendix a Technical speciﬁcationsON/OFF Cavitation Deadrise Echo sounder Fairing block Transducer GlossaryGlossary Installation Manual Revision a Index 491 Index Index Installation Manual Revision a