Table of Contents
Advertisement
Quick Links
Download this manual
See also:
Operating Manual
Advertisement
Table of Contents
Related Manuals for NorthStar 491
Summary of Contents for NorthStar 491
- Page 1 491 E OUNDER NSTALLATION ANUAL Rev A Part Number GM495 Northstar www.NorthstarNav.com a unit of Brunswick New Technologies Marine Electronics Service: 978/897-6600 30 Sudbury Road Acton, Massachusetts 01720 Sales: 800/628-4487...
-
Page 3: Table Of Contents
- - - - - - - - - - - - - - - - - - - - - - - 19 Installation test checklist SECTION FOUR — Troubleshooting and servicing the 491 - - - - - - 21 Common 491 installation problems... -
Page 5: Section One - Introduction
If a single element is detected, the 491 operates in single-frequency or dual-frequency interleaved mode (as determined by the operator) at 600 Watts. If two elements are detected, the 491 uses both elements at 1000 Watts. Installation and setup procedures are different for the two basic types of Northstar navigators. -
Page 6: Installation Considerations
For information about obtaining technical support and returning the 491 for factory service, “SECTION FOUR — Troubleshooting and servicing the 491” beginning on page 21. For details about operating the 491, see the Northstar 491 Echo Sounder Operations Manual (GM494) or Northstar 6000i’s Reference Manual, for that product. -
Page 7: Section Two - Installing The Transducer
WARNING! Be sure to use a 3-amp fuse. Using the incorrect fuse can result in fire or damage to the 491. CAUTION! Mounting the transducer requires drilling holes through the hull; make sure the installation does not cause the vessel to leak. -
Page 8: Selecting A Transducer
SECTION TWO — Installing the transducer Selecting a Northstar recommends using an Airmar transducer with the Northstar 491 echo sounder. The Airmar B260, B744 and P66 can be obtained from transducer Northstar as an installation kit with connectors installed. Table 1: Northstar-recommended transducers... -
Page 9: Installation Considerations
(also see location to obtain the best Figure 1 on page 7), depending on the type of vessel: possible performance from the transducer and the 491. Take into account the vessel’s maximum speed when selecting a mounting... - Page 10 Table 3: Hull thickness limits Minimum 6 mm (1/4 inch) 6 mm (1/4 inch) —— 19 mm (3/4 inch) Maximum 19 mm (3/4 inch) 65 mm (2 1/2 inches) 45 mm (1 3/4 inches) 114 mm (4 1/2 inches) 491 INSTALLATION MANUAL Revision A...
-
Page 11: Installing The Transducer
(see Figure 3). You must order the fairing block, if needed, from the trans- ducer’s manufacturer. 491 INSTALLATION MANUAL Revision A SECTION TWO — Installing the transducer 1/3 aft (Load Waterline Length) -
Page 12: Maintaining The Transducer
FIGURE 2: Recommended transducer incline angle backing block hull fairing thickness at narrowest point 6–12mm (1/4–1/2") Deadrise angle and fairing thickness (B44V shown) block (Airmar B744V) 491 INSTALLATION MANUAL Revision A 1/3 aft slope of hull deadrise angle parallel to waterline fairing multisensor... - Page 13 Use sanding sparingly, as repeated sanding may affect the transducer’s performance at high speeds. For lighter cleaning, the surface may be wet-sanded with #220 or finer wet/dry sandpaper. 491 INSTALLATION MANUAL Revision A SECTION TWO — Installing the transducer housing Paint exposed housing and bore up 30mm (1-1/4")
- Page 14 SECTION TWO — Installing the transducer PAGE 10 491 INSTALLATION MANUAL Revision A...
-
Page 15: Section Three - Installing The 491
Do not open the 491. There are no serviceable parts inside. Unauthorized tampering with the unit will automatically void the warranty. CAUTION! Do not mount the 491 in the bilge. It is not designed to resist heavy exposure to water and chemicals. PAGE 11... - Page 16 SECTION THREE — Installing the 491 PAGE 12 491 INSTALLATION MANUAL Revision A...
-
Page 17: System Components
Northstar 961/962 Processor Antenna 10-foot data cable (Northstar-supplied) Northstar 957/958/6000i Navigator 10-foot power cable (Northstar-supplied) SECTION THREE — Installing the 491 Northstar 491 Echosounder 33-foot cable (Part of transducer) Transducer Northstar 491 Echosounder 33-foot cable (Part of transducer) Transducer PAGE 13... -
Page 18: Choosing A Mounting Location
NEVER MOUNT THE 491 MODULE IN THE BILGE! Mounting the Figure 7 shows the mounting dimensions for the 491. The 491 may be mounted either horizontally or vertically. The mounting template supplied with the unit may be helpful in plan- ning the installation and locating the mounting holes. -
Page 19: Wiring The 491
The cable is shipped with a round 6-pin connector that attaches to other Northstar navigators. To install the 491 with a 961 or 962, you must cut off and discard the 6-pin connector, and wire the cable as shown below. - Page 20 SECTION THREE — Installing the 491 Table 4: Cable connection between the 961/962 and 491 961/962 pin number * Connector P1, pin 12 on the 961/962 requires two connections from the cable. **The red wire is not connected on the 961/962 end, and should be insulated and capped.
- Page 21 The connection between the 957/958/6000i and the 491 requires the Connecting the 491 10-foot (3-meter) data cable supplied with the 491. The cable connects to to the 957/958/ the AUX port on the back of the navigator. 6000i The cable is shipped with the connector installed — the following infor- mation is provided for cases where it is necessary to remove and reinstall the connector.
- Page 22 SECTION THREE — Installing the 491 Transducers purchased from Northstar (see page 4) are shipped with a Connecting the 491 connector installed. The following information is supplied for transducers to a transducer purchased elsewhere and for cases where it is necessary to remove and reinstall the connector.
-
Page 23: Initial Checkout
This section assumes that the 491, Northstar navigator, and transducer are now all properly connected. Turning on the navigator automatically checkout turns on the 491 (be sure your vessel is in the water). To turn the naviga- tor on, briefly press its PWR key. Turning the 491 on... -
Page 24: Installation Test Checklist
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 Turning the 491 off until the screen goes dark. The 491 will turn off automatically. -
Page 25: Section Four - Troubleshooting And Servicing The 491
SECTION FOUR — Troubleshooting and Common 491 Typical problems you may encounter either during or after the 491 installation process are outlined in Figure 12 on page 22 and Figure 13 on installation page 23. problems In the 961/962, the diagnostics screen may also help pinpoint a problem. - Page 26 491. See the “Initial checkout” section of this manual. 1. Check fuses and circuit breakers 2. Check power to 491 with a voltmeter. 3. Verify that the data cable between the 961/962 and the 491 is properly wired and connected.
- Page 27 Configure the navigatorʼs Aux Port for the 491. See the “Initial checkout” section of this manual. 1. Check fuses and circuit breakers. 2. Check power to 491 with a voltmeter. 3. Verify that the data cable between the navigator and the 491 is properly wired and connected.
-
Page 28: Getting Technical Support
SECTION FOUR — Troubleshooting and servicing the Getting After you’ve followed the instructions in this manual, if you need addi- tional technical or operations support for the 491, or if you have any technical other service-related questions, you can contact either your dealer or the support Northstar factory. -
Page 29: Ordering Replacement Parts
Servicing the Repair of the 491 is performed only at the factory. Service includes a com- plete hardware and software check-out. The 491 and any accessories returned for warranty repair that are deter- mined to be without fault are subject to a handling charge. -
Page 30: Returning A 491 For Service
491 for service and payment arrangements. Before returning the 491 The 491 should be shipped only in a properly designed carton with pack- to the factory, to prevent ing material. Shipments to the Northstar factory should be made to the... -
Page 31: Appendix A - Technical Specifications
Dimensions Weight Environmental characteristics Temperature Standards Electrical characteristics 491 INSTALLATION MANUAL Revision A Table 8: 491 technical specifications 50 and 200 kHz 1000 watts with dual-element transducers 600 watts with single-element transducers 0.1 to 2 ms 30 to 600 pulses/min... - Page 32 Noise limiter White level Range Advance speed Depth units Installation calibrations PAGE 28 Table 8: 491 technical specifications (Continued) 0 to 75 dB 0 to 9 0 to 5 ON/OFF Background color up to 3500 feet (1000 meters) 1/8 to 2/1...
-
Page 33: Glossary
(send) and sound to electricity (receive). An imaginary column through the water created by the path of a single water column transducer ping and its echoes. 491 INSTALLATION MANUAL Revision A PAGE 29... - Page 34 Glossary PAGE 30 491 INSTALLATION MANUAL Revision A...
-
Page 35: Index
STAT indicator light turning off turning on wiring Electrical power, requirements Fairing block, definition of Installation 491 INSTALLATION MANUAL Revision A 2, 3, 11 3, 5, 19 14, 17 1, 12 cautions 2, 11, 14, 17, 19 connecting to 957/958/6000i connecting to 961/962 connecting to ship’s power... - Page 36 Maintenance, transducer Northstar feedback on manuals website. See Website addresses Northstar 491 Echo Sounder. See Echo sounder Northstar 957/958 GPS/WAAS Chart Navigator Northstar 957/958/6000i GPS/WAAS Chart Navigator Northstar 961/962 GPS Chart Navigator Parts, ordering. See Technical support Safety considerations...
- Page 37 Upgrades, obtaining software Water column, definition of Website addresses Airmar Technology Corporation Northstar Northstar Technologies 491 INSTALLATION MANUAL Revision A Index PAGE 33...
- Page 38 Index PAGE 34 491 INSTALLATION MANUAL Revision A...