Lowrance electronic Fish Finder manual

Page 22

with electrical interference. Therefore, it's safer to go ahead and attach the power cable directly to the battery.

CAUTION:

When using the unit in a saltwater environment, we strongly rec- ommend that you shut off the power supply to the power cable when the unit is not in use. When the unit is turned off but still connected to a power supply, electrolysis can occur in the power ca- ble plug. This may result in corrosion of the plug body along with the electrical contacts in the cable and the unit's power socket.

In saltwater environments we recommend you connect the power cable to the auxiliary power switch included in most boat designs. If that results in electrical interference, or if such a switch is not available, we recommend connecting direct to the battery and in- stalling an inline switch. This will let you shut off power to the power cable when the unit is not in use. When you are not using the unit, you should always shut off power to the power cable, es- pecially when the power cable is disconnected from the unit.

To unit

Optional power off switch

for saltwater installations

 

 

Black wire

 

 

12 volt

Red wire with

 

3 amp fuse

 

battery

 

 

Power and transducer connections for the M52 Pro sonar

units (direct battery connection shown).

If possible, keep the power cable away from other boat wiring, espe- cially the engine's wires. This will provide the best isolation from elec- trical noise. If the cable is not long enough, splice #18 gauge wire onto it. The power cable has two wires, red and black. Red is the positive lead, black is negative or ground. Make sure to attach the in-line fuse holder to the red lead as close to the power source as possible.

For example, if you have to extend the power cable to the battery or power buss, attach one end of the fuse holder directly to the battery or power buss. This will protect both the unit and the power cable in the event of a short. It uses a 3-amp fuse.

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Contents M52 Pro Visit our web site Table of Contents Split Zoom Sonar Chart Index Page Sonar GeneralBack-up memory Sonar soundingGPS How to use this manual typographical conventionsGraphic symbols for Waypoints or event Receiver/antennaTransducer Installation PreparationsRecommended Tools and supplies Selecting a Transducer LocationHow low should you go? Shoot-thru-hull vs. Transom Mounting Transom Transducer Assembly and Mounting Insert bolt and check transducer position on transom Transom Trolling Motor Bracket Installation Transducer Orientation and Fish Arches SHOOT-THRU-HULL Preparation Testing Determines Best LocationHulls With Floatation Materials Transducer location High speed Trolling speed Shoot-thru-hull Installation Power and Cable Connections Page In-Dash Installation Mounting the Sonar Unit In-Dash or BracketBracket Installation 107.5 82.7 156 Depress ratchets to Release. Swivel base Portable Sonar Installation Installing the BatteriesPortable transducer installed on boat transom Section Basic Sonar Operation KeyboardMain Menu Sonar Menu Commands Sonar MenuBasic Sonar Quick Reference Pages Sonar Operations Fish Symbols vs. Full Sonar Chart Important TipPage Alarms ASP Advanced Signal ProcessingZone Alarm Press MENUMENU↓ to ALARMSENT↓ to Sonar AlarmsentFish Alarm Chart Speed Depth CursorDepth Range Automatic Depth Range ManualDepth Range Upper and Lower Limits Fish I.D. Fish Symbols & Depths FasTrackFishTrack Grayline→Overlay Data Ping Speed & HyperScroll Sensitivity & Auto Sensitivity Reset OptionsAutomatic Sensitivity Keel and Waterline Offset Keel OffsetFull Sonar Chart Sonar Color ModeSonar Chart Display Options Waterline OffsetDigital Data/Chart Split Zoom Sonar ChartSonar Simulator Pro TipsFlasher Zoom & Zoom Bar Stop ChartSurface Clarity Zoom PanUnit wont turn on Unit operates only in demo modeUnit freezes, locks up, or operates erratically No fish arches when the Fish I.D. feature is off NoiseSection Basic GPS Operations Main MenuSonar Pages Satellite StatusNavigation Page Position PlotterViewing the Plotter Zoom & Cursor Arrow Keys Selecting Any Plotter Item With the Cursor Navigate to Cursor Position on PlotterGPS Quick Reference Waypoints Cancel NavigationFind Distance between Points Create a WaypointPress WPT↓ to Create Newent Delete a Waypoint Edit a Waypoint Find a WaypointSelect a Waypoint Navigate To a Waypoint Set Man Overboard MOB Waypoint Trails Navigate Back to MOB WaypointCreating and Saving a Trail Tip Display a Saved Trail Delete a TrailEdit a Trail Name Visual Trailing Navigate a TrailNavigate a Trail forward Page Navigate a Back Trail Create Icon at Current Position IconsCreate Icon on Plotter Delete an IconNavigate to an Icon RoutesCreate and Save a Route Page Delete a Route Edit a Route NameNavigate a Route Navigate a Route backward Utilities Page Section System & GPS Setup Options Important Alarm Notes Auto Satellite SearchCoordinate System Selection Map Fix Customize Position Customize Page DisplaysGPS Simulator Customize Plotter or NavigationInitialize GPS Hide GPS FeaturesPlotter Auto Zoom Plotter Orientation From the Plotter or Sonar page, press MENU↓ Position Pinning Pop-up HelpScreen Contrast and Brightness Set Language Show Waas AlarmSet Local Time Sounds and Alarm Sound Styles Software Version InformationTrail Options Track SmoothingDelete All Trails Main Menu, left, Trails Menu, center, Trail Options, right New Trail Units of MeasureDelete Trail Trail Visible/Invisible and Other Trail OptionsMain Menu, left, Units of Measure Menu, right Index Page Page 100 Navico Databases License Agreement Databases Limited Warranty Navico Full ONE-YEAR Warranty How to Obtain Service… Not toll-freeAccessory Ordering Information for all countries Visit our web site