Humminbird 937C DF COMBO Transom Transducer Installation, Determine transducer mounting location

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TRANSOM TRANSDUCER INSTALLATION

If you will be installing a transom mounted transducer, use the procedures in this section. You will have one of two different types of transducer, based on whether you have a Single (931c or 937c Combo) or a Dual (931c DF or 937c DF Combo) frequency 900 Series™ control head. There are two pieces to the transducer mount assembly: the pivot, and the bracket. The Single frequency transducer comes with a two-piece plastic bracket assembly, while the Dual frequency transducer comes with a two-piece metal and plastic bracket assembly. Find the correct procedures for your transducer type. There are several procedures you will have to perform in order to install a transom-mounted transducer. They are:

•Determine transducer mounting location

•Mount the bracket to the boat (find the procedure for your transducer, either Single frequency or Dual frequency)

•Attach the pivot to the transducer (find the procedure for your transducer, either Single frequency or Dual frequency)

•Mount the transducer pivot assembly to the bracket (find the procedure for your transducer, either Single frequency or Dual frequency)

•Adjust the running position of the transducer (find the procedure for your transducer, either Single frequency or Dual frequency)

•Route the transducer cable

•Perform a final test of the transom transducer installation.

 

 

 

 

Stepped Hull

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

1

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 Rivets/Strakes

2 Deadrise Angle

 

 

 

 

Step 3

 

 

 

 

 

 

To determine transducer mounting location:

NOTE: If transom mounting is not possible because of a stepped hull or cavitation noise, and you have a single layer fiberglass hull, In-hull installation is an option. See Inside the Hull Transducer Installation for more information.

1.First, determine the best location on the transom to install the transducer. Consider the following to find the best location:

•It is very important to locate the transducer in an area which is relatively free of turbulent water. As a boat moves through the water, turbulence is generated by the weight of the boat, and the thrust of the propeller(s) - either clockwise or counter-clockwise. This turbulent water is normally confined to areas immediately aft of ribs, strakes or rows of rivets on the bottom of the boat, and in the immediate area of the propeller(s). Clockwise propellers create more turbulence on the port side. On outboard or inboard/outboard boats, it is best to locate the transducer at least 15" (380 mm) to the side of the propeller(s).

•The best way to locate turbulence-free water is to view the transom while the boat is moving. This method is recommended if maximum high-speed operation is a high priority. If this is not possible, select a location on the transom where the hull forward of this location is smooth, flat and free of protrusions or ribs.

•The hydrodynamic shape of your transducer allows it to point straight down without deadrise adjustment.

•On boats with stepped hulls, it may be possible to mount the transducer on the step. Do not mount the transducer on the transom behind a step to avoid popping the transducer out of the water at higher speeds; the transducer must remain in the water for the control head to maintain the sonar signal.

•If the transom is behind the propeller(s), it may be impossible to find an area clear from turbulence, and a different mounting technique or transducer type should be considered (see Inside the Hull Transducer Installation).

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Contents Page Thank YOU Table of Contents Menu System Start-Up Options Menu Contact Humminbird Series Introduction HOW the 900 Series WorksSingle Beam Sonar Dualbeam Plus SonarMULTI-MEDIA Card MMC/SD Slot Multi-Media Card MMC/SD SlotAccessory BUS Installation OverviewAccessory Bus 900 Series has a wide variety of configurationsBasic installation tasks that you must perform include Control Head InstallationGimbal Mounting the Control Head Mounting Screws Washer Gimbal Mounting Bracket Cables Routed Near Mounting Bracket Back of Control Head IN-DASH Mounting the Control Head Plug Cable Connector Assembly to Back of Control Head TemperatureTransducer Installation Connecting the Control Head Power Cable to the BoatTransom Transducer Installation To determine transducer mounting locationDetermine transducer mounting location Route the transducer cableCorner of the template Moves clockwise as the boat movesConfirm that the pivot angle has not changed Normal CavitationTo attach the pivot to the transducer Dual frequency unit Attaching the BracketOrder to gain access to the mounting screws, Force is necessary to pivot the assemblyTo route the transom transducer cable all transducers Trial installation Inside the Hull Transducer InstallationDetermine the transducer mounting location Permanently mount the transducer Route the cableMake sure the position of the transducer is marked Inside the HullTrolling Motor Transducer Installation Test and Finish the Transducer InstallationStem Mounting with AN Existing 1 14 Thread Stem If you have… Then useHand-tighten only Follow these steps to stem mount the GPS receiverAccess Under Mounting Location To the cable as shownNo Access Under Mounting Location Finish Routing the Cable and Check GPS Receiver OperationInstall the Speed accessory Speed Accessory InstallationHand tighten only Routing the speed cable to the control head Cleaning the Speed accessoryRotating Retaining Axial Clip to Remove Paddlewheel Testing the System Installation To test the installationPowering UP the Control Head Getting Started Using Your 900 SeriesSeries 937c DF Combo Title Screen WHAT’S on the Sonar Display TriplogReal Time Sonar RTS Window Understanding Sonar HistoryBottom Presentation KEY Functions POWER/LIGHT KEYMARK/GOTO key Info key Zoom +/- key View KEY Menu KEYWAY Cursor Control KEY Fishing requirements see View Menu TabView Preset Keys Exit KEYInfo KEY MARK/GOTO KEYViews Views and ReadoutsSonar views Navigation viewsSonar Zoom View Sonar ViewSonar View Sonar Zoom View Split Sonar ViewBIRD’S EYE View Bird’s Eye ViewChart/Bird’s Eye Combo View Chart View with Active CursorChart/Sonar Combo View 1112Chart Orientation Chart View with Cursor PresentNavigation To save the marked position as a waypoint Waypoints, Routes and TracksNavigate to a Waypoint or Position Chart View with Grid Chart View with TargetADD a Waypoint Target or Trolling Grid Save or Clear a Current Track Menu System Press MenuSTART-UP Options Menu Sonar Tab, Normal ModeStart-Up Options Menu Exit Normal operation by powering your 900 Series off Normal OperationSimulator SimulatorAccessory Test Self Test Accessory TestSystem Status Self TestGPS Diagnostic View Sonar X-PRESS MenuSensitivity Active SideSplit Position To adjust the Upper Range To adjust the Lower RangeUpper Range Lower RangeChart Speed Zoom LevelBottom Lock Sonar ColorsHighlight Split Position on the Navigation X-Press Menu Navigation X-Press MenuClear Current Track Save Current TrackSave Current Route Remove Target Cancel NavigationRemove Grid Sonar Menu TAB Beam SelectTo use Beam Select Highlight Beam Select on the Sonar main menuTo change the Fish ID Sensitivity setting Fish ID+Fish ID Sensitivity To turn Fish ID+ on or offTo adjust the Bottom View Bottom ViewZoom Width To change the Zoom WidthKHZ Sensitivity Depth LinesSurface Clutter Noise FilterWater Type MAX DepthTransducer Select Color BAR Temperature GraphNavigation Menu TAB Routes TracksWaypoints North Reference Trolling Grid RotationTrackpoint Interval Track MIN DistanceExport ALL NAV Data MAP DatumDelete ALL NAV Data Chart Menu TAB Chart Detail LevelTo change the Chart Detail Level setting To change the Map Borders settingSpot Soundings LAT/LON GridShaded Depth SET MAP Offset Alarms Menu TABClear MAP Offset Depth Alarm Fish ID AlarmLOW Battery Alarm Temp AlarmOFF Course Alarm Arrival AlarmDrift Alarm To change the Off Course Alarm settingTo change the Alarm Tone setting Alarm ToneHighlight Alarm Tone on the Alarms main menu Setup Menu TAB To change the Units Depth settingTo change the Units Temp setting Units DepthUser Mode Units DistanceUnits Speed LanguageTriplog Reset Restore DefaultsTo Reset Triplog To Restore DefaultsDefault Sonar View Customized Sonar View To Select ReadoutsDepth Offset Temp OffsetSpeed Calibration Local Time ZoneDaylight Saving Time Position FormatNmea Output SonarFollowing Nmea sentences are output To turn Nmea Output on or offAccessories Menu TAB Views Menu TABTo Change the View Status of Any View Highlight the View main menu tabSeries Doesn’t Power Up TroubleshootingSeries Defaults to Simulator with a Transducer Attached Display Problems Problem Possible CauseFinding the Cause of Noise Other electronic devicesNoise re-appears Boat’s engineYear Limited Warranty Humminbird Service PolicySeries Accessories Returning Your Unit for ServiceFor IN-WARRANTY service, complete the following steps Specifications Power OutputPlace on bottom of hull Appendix aAlign with transom Appendix B Contact Humminbird
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