Gebruiksaanwijzing /service van het product 491 van de fabrikant NorthStar Navigation
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491 E CHO S OUNDER I NSTALLATION M ANUAL Rev A P art Number G M495 Northstar a unit of Brunswick New Technologies Marine Electronics 30 Sudbury Road Acton, Massachusetts 01720 www.
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T able of C ontents S ECTI O N O N E — Intr oduction - - - - - - - - - - - - - - - - - - - - 1 W elcome to the N orthstar 491 - - - - - - - - - - - - - - - - - 1 Who should read this manual - - - - .
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491 INSTALLATION MANUAL Revision A PAGE 1 S ECTI O N O N E — Intr oduction W elcome to the Northstar 49 1 An echo sounder is a device that pro vides information about the water directly beneath a vessel.
S E CTI ON O N E — Introduction PAGE 2 491 INSTALLATION MANUAL Revision A • connecting the 491 to a transducer (see also the T ransducer Connec- tor Instructions —G M492) • troubleshooting and.
491 INSTALLATION MANUAL Revision A PAGE 3 S ECTI O N T WO — Installing the tr ansducer Saf ety consider ations WARNING! Be sure to turn the power off before starting the installation. Further , it is highly recommended that you keep power off while you’re performing the installation.
S E CTI ON T WO — Inst alling the transducer PAGE 4 491 INSTALLATION MANUAL Revision A Selecting a tr ansducer Northstar recommends using an Airmar transducer with the N orthstar 491 echo sounder. The Airmar B260, B7 4 4 and P66 can be obtained from Northstar as an installation kit with connectors installed.
S E CTI ON T WO — Inst alling the transducer 491 INSTALLATION MANUAL Revision A PAGE 5 Installation consider ations The f ollowing basic setup inf ormation isn’t a substitute for the installa- tion instructions provided b y the transducer’ s manufacturer .
S E CTI ON T WO — Inst alling the transducer PAGE 6 491 INSTALLATION MANUAL Revision A • the path for running the transducer’ s cable is reasonably direct—keep in mind that the transducer cable is 33 feet long (10 meters).
S E CTI ON T WO — Inst alling the transducer 491 INSTALLATION MANUAL Revision A PAGE 7 FI GURE 1: R ecommended installation locations for a tr ansducer Installing the tr ansducer A flat- bottom hul.
S E CTI ON T WO — Inst alling the transducer PAGE 8 491 INSTALLATION MANUAL Revision A FI GURE 2: R ecommended transducer incline angle FI GURE 3: T ypical finished thru-hull installation with a fa.
S E CTI ON T WO — Inst alling the transducer 491 INSTALLATION MANUAL Revision A PAGE 9 FI GURE 4: A nti-fouling paint ar eas (for A irmar B7 44V) Cleaning a tr ansducer T o clean the transducer of heavy debris or foul sea gro wth, use a stiff brush or putty knife, but don’t scratc h the surfaces.
S E CTI ON T WO — Inst alling the transducer PAGE 10 491 INSTALLATION MANUAL Revision A.
491 INSTALLATION MANUAL Revision A PAGE 11 S ECTI O N TH R E E — Installing the 4 9 1 Saf ety consider ations WARNING! Be sure to turn the power off before starting the installation. Further , it is highly recommended that you keep the power off while you’re performing the installation.
SEC TI ON THREE — Installing the 49 1 PAGE 12 491 INSTALLATION MANUAL Revision A.
SEC TI ON THREE — Installing the 49 1 491 INSTALLATION MANUAL Revision A PAGE 13 S ystem components Figure 5 on page 13 shows a configured 961/962 ec ho sounder system, and Figure 6 on page 13 shows a configured 957 /95 8/6 000i echo sounder system.
SEC TI ON THREE — Installing the 49 1 PAGE 14 491 INSTALLATION MANUAL Revision A Choosing a mounting location Before an y drilling or cutting takes place, carefully c hoose a mounting location for t.
SEC TI ON THREE — Installing the 49 1 491 INSTALLATION MANUAL Revision A PAGE 15 W iring the 49 1 The majority of installation problems are caused b y shortcuts taken with system cables.
SEC TI ON THREE — Installing the 49 1 PAGE 16 491 INSTALLATION MANUAL Revision A FI GURE 8: Interface cable connection fr om 96 1 /962 to 4 9 1 Violet Black Blue Brown Orange White Green Red (not co.
SEC TI ON THREE — Installing the 49 1 491 INSTALLATION MANUAL Revision A PAGE 17 Connecting the 4 91 to the 957 /95 8/ 6 000i The connection between the 95 7 /95 8/6 000i and the 4 91 requires the 10- foot (3- meter) data cable supplied with the 4 91.
SEC TI ON THREE — Installing the 49 1 PAGE 18 491 INSTALLATION MANUAL Revision A Connecting the 4 91 to a tr ansducer T ransducers purchased from N orthstar (see page 4) are shipped with a connector installed.
SEC TI ON THREE — Installing the 49 1 491 INSTALLATION MANUAL Revision A PAGE 19 Plug the transducer cable into the TRANSDUCER connector of the 491. If your transducer doesn’t support speed, you can connect a separate speed sensor , such as the Airmar ST650, to pins 1, 2 and 3, as shown in the table.
SEC TI ON THREE — Installing the 49 1 PAGE 20 491 INSTALLATION MANUAL Revision A For the 957 /95 8/6 000i Y ou must set the navigator’ s AU X port to “Sounder”: 1. Press the STAR key to display the OPTIONS/SERVICE INFO screen, then press the PORT SETUP OPTIONS key .
491 INSTALLATION MANUAL Revision A PAGE 21 S ECTI O N F O U R — T r oubleshooting and servicing the 4 9 1 C ommon 49 1 installation pr oblems T ypical problems you may encounter either during or after the 491 installation process are outlined in Figure 12 on page 22 and Figure 13 on page 23.
S E CTI ON F O U R — T roubleshooting and servic ing the PAGE 22 491 INSTALLATION MANUAL Revision A Figur e 1 2: 9 6 1 /962 echo sounder system troubleshooting No echoes display ed when ST AR ke y is pressed.
S E CTI ON F O U R — T roubleshooting and servic ing the 491 INSTALLATION MANUAL Revision A PAGE 23 Figur e 1 3: 957 /95 8/6 000i echo sounder system troubleshooting No echoes displayed on sounder screen.
S E CTI ON F O U R — T roubleshooting and servic ing the PAGE 24 491 INSTALLATION MANUAL Revision A Getting technical support After you’ ve follo wed the instructions in this manual, if you need a.
S E CTI ON F O U R — T roubleshooting and servic ing the 491 INSTALLATION MANUAL Revision A PAGE 25 Hearing fr om you Y our f eedback is important and helps N orthstar ensure that this manual is a valuable resource for all marine tec hnicians. Send your questions, comments, or suggestions about this manual to: docs@northstarcmc.
S E CTI ON F O U R — T roubleshooting and servic ing the PAGE 26 491 INSTALLATION MANUAL Revision A Returning a 4 9 1 f or service If you have overnight or second-day shipping requirements, before ship- ping the 491, please call Northstar for turnaround time, freight c harges, and payment arrangements.
491 INSTALLATION MANUAL Revision A PAGE 27 A PPEN DIX A — T echnical specifications T able 8: 4 9 1 technical specifications Perf ormance characteristics Frequencies 50 and 200 kHz Output power 1 000 watts with dual-element transducers 600 watts with single-element transducers Pulse lengths 0.
AP P E N DI X A — T echnical spec ific ations PAGE 28 491 INSTALLATION MANUAL Revision A Manual controls Gain 0 to 75 dB Clutter 0 to 9 Signal level 0 to 5 Noise limiter ON /OF F White level Backg .
491 INSTALLATION MANUAL Revision A PAGE 29 Glossary cavit ation The f ormation of bubbles, which may negativel y impact a transducer’ s readings by reducing its ability to put energy into the water .
Glossary PAGE 30 491 INSTALLATION MANUAL Revision A.
491 INSTALLATION MANUAL Revision A PAGE 31 Inde x A Airmar Technology Corporation 4 C Cable 491 and 961/962 14 491 and ship’s power 14 491 to 957/958/6000i 16 Cautions installation 2, 3, 11 interfer.
Index PAGE 32 491 INSTALLATION MANUAL Revision A overview 11 safety considerations 11 troubleshooting 21 wiring 14 transducer cautions 3, 5, 19 cavitation 5 hull thickness limits 6 noise problems 5 pr.
Index 491 INSTALLATION MANUAL Revision A PAGE 33 U Upgrades, obtaining software 18 W Water column, definition of 29 Website addresses Airmar Technology Corporation 4 Northstar 24 Northstar Technologie.
Index PAGE 34 491 INSTALLATION MANUAL Revision A.
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