Furuno Ls4100 manual Installation, Display Unit, Thru-hull Mount Transducer

Page 30

4. INSTALLATION

4.1 Display Unit

Mounting considerations

The display unit can be installed on a desktop, on the bulkhead or flush mounted in a panel. When choosing a location keep the following in mind:

•Keep the display unit out of direct sunlight.

•The temperature and humidity should be moderate and stable.

•Locate the unit away from exhaust pipes and vents.

•The mounting location should be well ventilated.

•Mount the unit where shock and vibration are minimal.

•For maintenance and checking purposes, leave sufficient space at the sides and rear of the unit and leave slack in cables.

•A magnetic compass will be affected if the display unit is placed too close to it. Observe the following compass safe distances to prevent disturbance to the magnetic compass:

Standard compass: 0.4 meters

Steering compass: 0.3 meters

Desktop, overhead mounting

1.Fix the bracket to a desktop or the overhead with tapping screws (supplied).

2.Loosely screw knobs into the display unit.

3.Set the display unit to the bracket and then tighten the knobs.

Mounting on the bulkhead, Flush mounting in a panel

See the instructions on the bulkhead or flush mounting template (supplied).

4.2Thru-hull Mount Transducer

Transducer mounting location

The thru-hull mount transducer

(520-5PSD, 520-5MSD) provides the best performance of all, since the transducer protrudes from the hull and the effect of air bubbles and turbulence near the hull skin is reduced. When the boat has a keel, the transducer should be at least 30 cm away from it. Typical thru-hull mountings are shown in the figure on the next page.

The performance of this sounder is directly related to the mounting location of the transducer, especially for high-speed cruising. The installation should be planned in advance, keeping the standard cable length (8 m) and the following factors in mind:

•Air bubbles and turbulence caused by movement of the boat seriously degrade the sounding capability of the transducer. The transducer should, therefore, be located in a position where water flow is the smoothest. Noise from the propellers also adversely affects performance and the transducer should not be mounted nearby. The lifting strakes are notorious for creating acoustic noise, and these must be avoided by keeping the transducer inboard of them.

•The transducer must always remain

24

Image 30

Contents Echo Soundr Table of Contents Safety Instructions Safety Instructions for the Installer Word to LS-4100 Owners FeaturesForeword IiiEquipment lists System configurationSystem Overview Standard supplyOperation Power On/OffHow to remove the hard cover Control DescriptionMode selection window Adjusting Display Contrast, BrillianceBrilliance/contrast adjustment window Choosing a Display, FrequencyMarker-zoom display Single frequency displayDual frequency display 50 kHzNav data displays Bottom-zoom displayBottom-lock display Bottom-zoom displayHow automatic operation works Menu Operating ProcedureAutomatic Operation Choosing automatic operationRange offset Choosing the manual modeManual Operation Gain offsetAdjusting the gain Shifting the rangeChoosing Picture Advance Speed How to measure depth with the VRMMeasuring Depth Picture advance options windowForms of interference Suppressing InterferenceSuppressing Low Level Noise Clutter appearanceAppearance of weak echoes Erasing Weak EchoesScope Display Scope displayActivating an alarm AlarmsAlarm description Alarm menuSilencing the buzzer Depth, temperature, speed setting WindowWaypoints Fish level optionsKHz display Registering a waypoint on the screenRegistering waypoint by L/L Waypoint data displayErasing waypoints Setting destination waypointEditing waypoints Waypoint listNav data window and item displayable Setting Up Nav Data DisplaysNAV Data Setup window Nav data display-1Other Menu Items NAV data display-2HUE Picture Color How white line works Deep GainSystem Menu Water temperature display wide, FSystem Menu System menusNav window Page MAINTENANCE, Troubleshooting Troubleshooting table TroubleshootingDiagnostics Installation menuClear memory display Memory ClearTest Pattern Test patternsInstallation Display UnitThru-hull Mount Transducer Acceptable transducer mounting locations Thru-hull mount transducer dimensionsTypical thru-hull mount transducer installations Suitable transducer mounting locationsTransducer preparation Installing the 520-5PWD on a flat hullTransom Mount Transducer 520-5PWDInstalling the transom mount transducer on a deep-V hull Installing the 525-5PWD525-5PWD Inside-hull Transducer Final preparation Pre-test for speed and temperatureOptional Triducer Triducer 525ST-MSDHeight required at mounting location Installation of bracketMounting location Mounting location on single drive boatAdjusting Sensor position and transom angleAttaching the sensor to the bracket Vertical adjustment and cable routingAttaching the sensor to the bracket Cable routingOptional Water Temperature/Speed Sensor Power connector Establishing the groundOptional equipment 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