NorthStar Navigation Installation test checklist, Turning the 491 off, For the 957/958/6000i

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SECTION THREE — Installing the 491

Setting up the echo sounder

Turning the 491 off

For the 957/958/6000i

You must set the navigator’s AUX port to “Sounder”:

1.Press the STAR key to display the OPTIONS/SERVICE INFO screen, then press the PORT SETUP OPTIONS key.

2.Set the AUX PORT option to Sounder, then press the ENTER key.

The STATUS indicator light on the 491 glows steady green when the 491’s power is on and it is communicating with the navigator.

You’ll need to set the echo sounder display options on the navigator’s ECHO SOUNDER SETUP screen. Press the STAR key to display this screen and set these options. For details, see the Northstar 491 Echo Sounder Operations Manual (GM494).

To turn off the 491, turn off the navigator by pressing and holding PWR until the screen goes dark. The 491 will turn off automatically.

Installation test checklist

CAUTION!

If the vessel is out of the water when the echo sounder is turned on, the transducer may be dam- aged. Perform all tests on the with the vessel in the water.

1.Make sure the vessel is in the water.

2.To test the system after installation, turn on the navigator and con- firm that power is on with no errors. If echo sounder data isn’t mov- ing across the ECHO screen from right to left, see ”Common 491 installation problems” beginning on page 21.

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491 INSTALLATION MANUAL Revision A

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Contents Echo Sounder Installation Manual Page Table of Contents Page Section ONE Introduction Welcome to the NorthstarWho should read this manual Scope of this manual Installation considerations Section TWO Installing the transducer Safety considerationsNorthstar-recommended transducers Airmar transducer elementsChoosing a mounting location Do not mount the transducerHull thickness limits Installing the transducer LWLUsing anti-fouling paint LWLCleaning a transducer DetailPage Section Three Installing Section Three Installing Installation Manual Revision a System components Echo sounder system components with the Northstar 961/962Mounting 190 dia 360 diaWiring Connecting the 491 to the 961/962Cable connection between the 961/962 Interface cable connection from 961/962 toConnecting the 491 to the 957/958 Connecting the 491 to a transducer 491-to-transducer connector pin wiringInitial checkout Turning the 491 onFor the 961/962 Installation test checklist Setting up the echo sounderTurning the 491 off For the 957/958/6000iSection Four Troubleshooting and servicing Status LED961/962 echo sounder system troubleshooting 957/958/6000i echo sounder system troubleshooting Getting technical support Contacting NorthstarOrdering replacement parts Servicing Hearing from youReturning a 491 for service Appendix a Technical specifications 491 technical specificationsON/OFF Glossary Cavitation Deadrise Echo sounder Fairing block TransducerGlossary Installation Manual Revision a Index 491 Index Index Installation Manual Revision a