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Garmin Fishfinder 240 Blue Owner's Manual
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Garmin Fishfinder 240 Blue Owner's Manual

Garmin fishfinder 240 blue marine-fishfinder: owners manual
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Fishfi nder 240 Blue
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Summary of Contents for Garmin Fishfinder 240 Blue

  • Page 1 Fishfi nder 240 Blue owner’s manual...
  • Page 3 Introduction...
  • Page 4 Introduction...
  • Page 5 Introduction * Included with Optional Package...
  • Page 6 Introduction Chart Tab Tools Tab Numbers Tab...
  • Page 7 Alarms Tab Introduction System Tab Calibrations Tab Units Tab Memory Tab...
  • Page 8 Introduction Water Depth Battery Voltage Water Temperature Speed Over Water* Fish Thermocline and Structure Bottom Shape and Type Transducer Frequency*...
  • Page 9 Installation Optional Package 50 kHz wide cone angle 200 kHz narrow cone angle dead zone fish not seen...
  • Page 10 Installation DO NOT NOTICE: DO NOT Apply marine sealant to all screw threads to prevent water from seeping into the transom. Transducer should extend 1/8" below fiberglass hull or 3/8" below aluminum hull Mount the transducer parallel with the bottom. Mount the transducer cable cover well above the waterline.
  • Page 11 Installation...
  • Page 12 Installation Adjust the speed sensor so it is parallel with the bottom of the boat. If the speed sensor is not adjusted properly, the sonar may experience inaccurate or degraded speed readings. Drill a 3/4” hole well above the water line. Coat the inside of the hole with Marine Sealant.
  • Page 13 Installation Fishfi nder 240 Blue...
  • Page 14 Installation...
  • Page 15 Installation...
  • Page 16 Installation...
  • Page 17 Installation POWER...
  • Page 18 Arrow Keys Unit Operation Enter Key Setup Key Power and Backlight Key...
  • Page 19 Unit Operation...

  • Page 20: Unit Operation

    Using the Adjustment Bar Unit Operation RIGHT LEFT DOWN ENTER...
  • Page 21 Unit Operation...
  • Page 22 Unit Operation...
  • Page 23 SETUP MENU SETUP DOWN RIGHT LEFT Chart Tab SETUP Unit Operation...
  • Page 24 Unit Operation...
  • Page 25 Unit Operation...
  • Page 26 Unit Operation Tools Tab...
  • Page 27 Unit Operation...
  • Page 28 Unit Operation Numbers Tab...
  • Page 29 Unit Operation...
  • Page 30 Unit Operation...
  • Page 31 Unit Operation Alarms Tab...
  • Page 32 Unit Operation...
  • Page 33 Unit Operation System Tab...
  • Page 34 Unit Operation...
  • Page 35 Calibrations Tab Unit Operation Transducer at Surface Transducer at Bottom of Keel...
  • Page 36 Units Tab Unit Operation...
  • Page 37 Memory Tab Unit Operation...

  • Page 38: Understanding Sonar

    On the Water On the Water This fi sh is currently in a Dead Zone and is not detected by the sonar. The fi sh is in the coverage area of the transducer, but remember the fi rst strong return sets the bottom level.
  • Page 39 On the Water On the Water...
  • Page 40 On the Water On the Water where when Example 1. Example 2.
  • Page 41 On the Water On the Water Example 3.
  • Page 42 On the Water On the Water Thermocline...
  • Page 43 On the Water On the Water...
  • Page 44 On the Water Appendix A...
  • Page 45 On the Water Appendix B ENTER ENTER...
  • Page 46 On the Water Appendix C...
  • Page 47 On the Water Appendix C...
  • Page 48 On the Water Appendix C...