Assembling the transducer | Lowrance electronic LMS-520C manual

	Bolt	Lock washer
	Bolt	Nut
		Nut
	Flat washer	Flat washer

Assemble transducer and bracket.

3.Assembling the transducer.

A. One-piece bracket: Once you determine the correct position for the ratchets, assemble the transducer as shown in the following fig-

ure. Don't tighten the lock nut at this time.

Metal

Nut washer

Rubber	Metal washer
washers	Metal washer
	Bolt

Assemble transducer and bracket.

B. Two-piece bracket: Once you determine the correct position for the ratchets, assemble the transducer as shown in the figure in step 2B. Don't tighten the lock nut at this time.

4.Drilling mounting holes.

Hold the transducer and bracket assembly against the transom. The transducer should be roughly parallel to the ground. The trans- ducer's centerline should be in line with the bottom of the hull. Don't let the bracket extend below the hull!

Mark the center of each slot for the mounting screw pilot holes. You will drill one hole in the center of each slot.

Drill the holes. For the one-piece bracket, use the #29 bit (for the #10 screws). For the two-piece bracket, use the #20 bit (for the #12 screws).

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Lowrance electronic LMS-520C, LMS-525C DF manual Assembling the transducer, Drilling mounting holes

Contents

LMS-520C & LMS-525C DF Copyright 2006 Lowrance Electronics, Inc All rights reserved Table of Contents Automatic Sensitivity 121 101105 Advanced GPS Operations 139 153 Nmea 2000 Device Configuration 207 193 231 Vii Viii Read Me First Page Sonar GeneralBack-up memory LMS-525cDF 50/200 kHz Zoom bottom track Sonar soundingAutomatic ranging Surface water temp Position updates Graphic symbols for Waypoints or eventHow Lowrance Sonar Works How Lowrance GPS Works Introduction to GPS and Waas Page Page How to use this manual typographical conventions Arrow Keys Menu Commands KeyboardInstructions = Menu Sequences Page Transducer Installation Preparations Selecting a Transducer Location Good and poor transducer locations How low should you go? Shoot-thru-hull vs. Transom Mounting Transom Transducer Assembly And Mounting Assembling the bracket Aligning the transducer on the transom Insert bolt and check transducer position on transom Assembling the transducer Drilling mounting holes Attaching transducer to transom Bottom Hull Flat-bottom hullDeep-vee hull Trolling Motor Bracket Installation single-frequency only Transducer Orientation and Fish Arches Shoot-Thru-Hull Preparation Testing Determines Best Location True bottom Second bottom Manual range setting Shoot-thru-hull Installation Speed/Temperature Sensors Optional Speed Sensor Installation Good location Power Connections Powering Your Display Unit Failure to use a 3-amp fuse will void your warranty Power Diagram a Power Diagram B Powering a Nmea 2000 Network Bus GPS Antenna/Receiver Module Connecting to a Nmea 2000 Network Nmea 0183 Wiring Data cable Page LMS-520c and LMS-525cDF cable connections Bracket Installation Mounting the Unit Bracket, In-Dash or Portable Front In-Dash Installation Template4.46 MMC or SD Card Memory Card Installation Portable Installation To remove an MMC To add an MMC or SD Card Other Accessories Cleaning Towel Face Cover Page Basic Sonar Operation Keyboard Power/lights on and off Main Menu Main Menu Pages Satellite Status Navigation Map Sonar Page Sonar Page showing full sonar chart mode Basic Sonar Quick Reference Sonar Operations To adjust sensitivity Fish Symbols vs. Full Sonar Chart Important Tip Other Free Training Aids Page ASP Advanced Signal Processing To change the ASP level Alarms Depth Alarms Zone Alarm Fish Alarm GPS Alarms Nmea 2000 Alarms Important Alarm Notes Calibrate Speed Tip Chart Speed To change chart speed Colorline To adjust Colorline level Depth CursorCursor Depth Range Automatic Depth Range Manual Depth Range Upper and Lower Limits To change the upper and lower limits FasTrack To turn off upper and lower limits Fish I.D. Fish Symbols & Depths Page Frequency Change Transducer Frequency LMS-525cDF only To turn the Fish I.D. feature onFishTrack To turn on FishTrack To change the frequency setting to 50 kHz To change the frequency setting to 200 kHzHyperScroll Log Sonar Chart Data To record or log chart data Noise Rejection Overlay DataTo overlay information on your screen Data Viewer menu left. Sonar Data category expanded right To remove overlaid data To move overlaid data Ping Speed & HyperScroll Reset Options To change Ping SpeedTo turn off HyperScroll Reset Water Distance Set Keel Offset Sensitivity & Auto Sensitivity To adjust sensitivity in auto mode Automatic Sensitivity Sonar Chart Mode To adjust sensitivity in manual modeTo turn Auto Sensitivity back on Sonar Page & Sonar Chart Display Options To change the chart mode color scheme+Full Sonar Chart Split Zoom Sonar Chart Split Frequency Sonar Chart LMS-525cDF only Digital Data/Chart Customize Page Displays To change the information displayed in a data box Sonar with Custom Gauges Flasher To customize digital gauge display To resize Sonar and Custom Gauge windows Map with Sonar Split Screen Sonar Simulator To use the simulator Press ↓ ↑ to file nameENT↓ to Playentexit Stop Chart To adjust the Surface Clarity level Surface Clarity To adjust Menu Transparency level Transparency Zoom Pan Upper and Lower LimitsZoom & Zoom Bar 100 Unit wont turn on Unit freezes, locks up, or operates erratically101 No fish arches when the Fish I.D. feature is off 102 103 104 Basic GPS Operations 105 106 107 108 To set up Custom Gauge 109 110 111 112 Navigation 113 Background map vs. MapCreate map content 114 115 116 Map with Sonar To resize Map with Sonar windows117 Map with Custom Gauges 118 Radar 119 To access Radar 120 Basic GPS Quick Reference 121 Find Your Current Position Moving Around the Map Zoom & Cursor Arrow Keys122 Selecting Any Map Item with the Cursor Searching123 After the unit has acquired a position 124 Set a Waypoint To create and save a Waypoint125 126 Navigate To a Waypoint Set Man Overboard MOB Waypoint127 Navigate Back to MOB Waypoint Navigate to Cursor Position on Map128 129 Navigate to a Point of Interest Creating and Saving a Trail130 To Save a Trail 131 Displaying a Saved Trail To turn off trail display132 Visual Trailing Navigating TrailsTo turn on trail display Navigate a Trail Sure press ←ENT.Figure 134 Navigate a Back Trail backtrack 135 GPS Data files Transfer Custom Maps and GPS Data FilesCustom Maps 136 137 Cancel Navigation 138 Find Distance from different Locations Find Distance from Point to Point139 Create Icon at Current Position IconsCreate Icon on Map Delete an Icon Routes Navigate to an Icon141 Create and Save a Route 142 143 Delete a Route 144 Edit a Route Name Edit Route Waypoints145 Navigate a Route Navigate a Route in Reverse146 Trails Delete a Trail147 Edit a Trail Pattern Edit a Trail NameEdit a Trail Color 148 Utilities Waypoints To delete all waypoints at one time To edit waypoint symbolTo delete a waypoint from the map Edit a Waypoint To edit waypoint name 151 Set a Waypoint by Average Position Set a Waypoint by Projecting a Position152 To change alarm settings 153 Auto Satellite Search 154 Communications Port Configuration Check MMC Files and Storage Space155 To get to Coordinate System Selection Configure NmeaCoordinate System Selection 156 To set up Loran TD 157 To configure a map fix Map Fix158 Customize Page Displays To change data box information159 GPS Simulator To turn on the GPS Simulator160 Steer with Arrows 161 Initialize GPS Hide GPS FeatureTo Hide GPS Features Simulating Trail or Route Navigation To Initialize GPS Map Auto ZoomMap Data To turn on Auto Zoom To turn on/off Pop-up Map Information To access Map Data menuTo show Map Data To turn on/off Draw Map Boundaries To turn on/off range rings Map Datum SelectionMap Overlays Range Rings Lat/Long Grid To turn on/off Lat/Long Grid lines Map Detail Category Selection Map Orientation166 167 NauticPath USA Marine Charts Nautical Chart Notes168 Port Information To view Chart Note informationTo view Port Services information 169 Tidal Current Information 170 To view Tidal Current information 171 To select another date Tide Information172 Navionics→ Charts To view tide information173 To display a Navionics chart 174 175 176 177 To set up Popup Help Pop-up Help178 179 Screen Contrast and Brightness 180 Set Local Time To adjust the screens display modeSet Language To set the Month To set the Year Show Waas AlarmTo Configure DST To select Time Format Software Version Information To turn on/off the Waas AlarmTo access Software Information To Require Waas To set Volume Sounds and Alarm Sound StylesTo set Alarm Sounds To set Alarm Style Track Smoothing Trail Options185 To Delete all Trails Update Trail OptionTo create a New Trail 186 187 To delete a Trail Trail Visible/Invisible and Other Trail Options188 To change Units of Measure To set Speed/Distance To adjust Transparency levelUnits of Measure 189 To set Depth units To set Temperature unitsTo set Pressure units 190 To set Volume units To set Heading units191 192 Searching 193 Find Streets 194 Find Any Item Selected by Map Cursor Find Interstate Highway Exits195 196 197 Find Map Places or Points of Interest POI 198 199 Find Streets or Intersections Find a Street200 Find an Intersection 201 202 Find Waypoints 203 204 205 206 Bus Setup Nmea 2000 Menu207 Engine & Tank Configuration 208 Setting Engine-Tank Configuration 209 Device Configuration Menu Device Information and Device Data210 Fuel Management Menu 211 If you did not fill up the tank Adding Fuel to TankIf you filled up the tank Engine Operations 213 Waypoint Sharing Backlight Synchronization214 Configuring EP Sensors EP-35 Temperature Configuration215 EP-10 Fuel Flow Configuration Advanced Options menu216 217 EP-15 Fluid Level Configuration 218 219 220 Suzuki Engine Interface Configuration 221 222 Calibrating EP Sensors EP-10 Fuel Flow Calibration223 EP-15 Fluid Level Calibration 224 225 226 Fuel Flow Calibration in a Suzuki Engine Interface 227 Engine connected to your engine interface Engine Trim Calibration228 Reset Trim Calibration Bennett Trim Tabs Calibration229 230 Supplemental Material Datums Used by This Unit 231 232 233 Conus 234 FCC Compliance 235 236 Lowrance Databases License Agreement 237 Databases Limited Warranty 238 Lowrance Electronics Full ONE-YEAR Warranty 239 Not toll-free 240 Accessory Ordering Information for all countries Visit our web site