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491 installation manual Glossary Installation Manual Revision a
Models:
491
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34
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Install
Wiring
Setting up the echo sounder
Cleaning a transducer
Safety
Returning a 491 for service
Using anti-fouling paint
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Glossary
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491 INSTALLATION MANUAL Revision A
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Contents
Echo Sounder Installation Manual
Page
Table of Contents
Page
Welcome to the Northstar
Section ONE Introduction
Who should read this manual Scope of this manual
Installation considerations
Section TWO Installing the transducer
Safety considerations
Northstar-recommended transducers
Airmar transducer elements
Choosing a mounting location
Do not mount the transducer
Hull thickness limits
Installing the transducer
LWL
Using anti-fouling paint
LWL
Cleaning a transducer
Detail
Page
Section Three Installing
Section Three Installing Installation Manual Revision a
System components
Echo sounder system components with the Northstar 961/962
Mounting
190 dia 360 dia
Wiring
Connecting the 491 to the 961/962
Cable connection between the 961/962
Interface cable connection from 961/962 to
Connecting the 491 to the 957/958
Connecting the 491 to a transducer
491-to-transducer connector pin wiring
Turning the 491 on
Initial checkout
For the 961/962
Turning the 491 off
Installation test checklist
Setting up the echo sounder
For the 957/958/6000i
Section Four Troubleshooting and servicing
Status LED
961/962 echo sounder system troubleshooting
957/958/6000i echo sounder system troubleshooting
Getting technical support
Contacting Northstar
Ordering replacement parts Servicing
Hearing from you
Returning a 491 for service
Appendix a Technical specifications
491 technical specifications
ON/OFF
Glossary
Cavitation Deadrise Echo sounder Fairing block Transducer
Glossary Installation Manual Revision a
Index
491
Index
Index Installation Manual Revision a
