Furuno Ls4100 manual Transom Mount Transducer, Transducer preparation, 520-5PWD

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Hole for	BOW
stuffing tube

Upper Half

Lower Half

Saw along slope of hull.

Construction of fairing block

3.Drill a hole just large enough to pass the threaded stuffing tube of the transducer through the hull, making sure it is drilled vertically.

4.Apply a sufficient amount of high quality caulking compound to the top surface of the transducer, around the threads of the stuffing tube and inside the mounting hole (and fairing blocks if used) to ensure watertight mounting.

5.Mount the transducer and fairing blocks and tighten the locking nuts. Be sure that the transducer is properly oriented and its working face is parallel to the waterline.

Note: Do not over-stress the stuffing tube and locking nuts through excessive tightening, since the wood block will swell when the boat is placed in the water. It is suggested that the nut be tightened lightly at installation and retightened several days after the boat has been launched.

Transducer preparation

Before putting the boat in water, wipe the face of the transducer thoroughly with a detergent liquid soap. This will lessen the time necessary for the transducer to have good contact with the water. Otherwise the time required for complete “saturation” ill be lengthened and performance will be reduced.

DO NOT paint the transducer. Performance will be affected.

4.3Transom Mount Transducer

The transom mount transducer is very commonly employed, usually on relatively small I/O or outboard boats. Do not use this method on an inboard motor boat because turbulence is created by the propeller ahead of the transducer.

520-5PWD

There are two methods of installation: flush with hull (for flat hulls) and projecting from hull (for deep V-hulls).

			D
			D


D>50 cm
					Deep-V
Flat Hull					Hull

520-5PWD mounting locations

Installing the 520-5PWD on a flat hull

A suitable mounting location is at least 50 cm away from the engine and where the water flow is smooth.

1.Drill four pilot holes in the mounting location.

2.Attach the transducer to the bracket with 5 x 20 tapping screws (supplied).

3.Adjust the transducer position so the transducer faces right to the bottom.

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Contents Echo Soundr Table of Contents Safety Instructions Safety Instructions for the Installer Features ForewordWord to LS-4100 Owners IiiSystem configuration System OverviewEquipment lists Standard supplyPower On/Off How to remove the hard coverOperation Control DescriptionAdjusting Display Contrast, Brilliance Brilliance/contrast adjustment windowMode selection window Choosing a Display, FrequencySingle frequency display Dual frequency displayMarker-zoom display 50 kHzBottom-zoom display Bottom-lock displayNav data displays Bottom-zoom displayMenu Operating Procedure Automatic OperationHow automatic operation works Choosing automatic operationChoosing the manual mode Manual OperationRange offset Gain offsetAdjusting the gain Shifting the rangeHow to measure depth with the VRM Measuring DepthChoosing Picture Advance Speed Picture advance options windowSuppressing Interference Suppressing Low Level NoiseForms of interference Clutter appearanceErasing Weak Echoes Scope DisplayAppearance of weak echoes Scope displayAlarms Alarm descriptionActivating an alarm Alarm menuDepth, temperature, speed setting Window WaypointsSilencing the buzzer Fish level optionsRegistering a waypoint on the screen Registering waypoint by L/LKHz display Waypoint data displaySetting destination waypoint Editing waypointsErasing waypoints Waypoint listSetting Up Nav Data Displays NAV Data Setup windowNav data window and item displayable Nav data display-1HUE Picture Color Other Menu ItemsNAV data display-2 How white line works Deep GainWater temperature display wide, F System MenuSystem Menu System menusNav window Page MAINTENANCE, Troubleshooting Troubleshooting DiagnosticsTroubleshooting table Installation menuMemory Clear Test PatternClear memory display Test patternsThru-hull Mount Transducer InstallationDisplay Unit Thru-hull mount transducer dimensions Typical thru-hull mount transducer installationsAcceptable transducer mounting locations Suitable transducer mounting locationsInstalling the 520-5PWD on a flat hull Transom Mount TransducerTransducer preparation 520-5PWD525-5PWD Installing the transom mount transducer on a deep-V hullInstalling the 525-5PWD Inside-hull Transducer Pre-test for speed and temperature Optional TriducerFinal preparation Triducer 525ST-MSDInstallation of bracket Mounting locationHeight required at mounting location Mounting location on single drive boatAdjusting Sensor position and transom angleVertical adjustment and cable routing Attaching the sensor to the bracketAttaching the sensor to the bracket Cable routingOptional Water Temperature/Speed Sensor Optional equipment Power connectorEstablishing the ground IEC 61162-1 Data Sentences Water temp/speed sensorInstallation Menu Nmea PORT, Nmea MIXWaas options window Bottom level displaySpecifications of Echo Sounder LS-4100 Page Page Display Unit 00014698000