NorthStar Navigation EXPLORER 657 operation manual When you add or remove fuel

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Fuel window	Fuel flow
	The fuel flow for the engine(s). On a multi engine
	The fuel flow for the engine(s). On a multi engine
	boat, the data for the port engine is on the left
	of the display. Use the flows to check the load of
	each engine.

Range

The estimated boat range at the current fuel flow. The value can depend on the type of speed sensor (see section 12-5).

Economy

The distance travelled per unit of fuel used. The value can depend on the type of speed sensor (see section 12-5). The larger the value, the better the fuel economy. Adjust the throttle and trim to achieve the best economy.

Fuel consumption curve

A graph of fuel consumption and boat speed as a function of engine RPM. Use the curve to monitor and optimise boat performance (see section 12-6).

12-3 When you add or remove fuel

When you add or remove fuel, you must tell the 657, otherwise the fuel data will be meaningless.

A When you completely fill a tank

Go to the fuel window and press . Then:

On a single-tank boat, select Fill tank.

On a multi-tank boat, select Fill tank, then select the tank you have filled.

Note: Underfloor fuel tanks are often difficult to refill to the same level twice, due to air pockets.

With underfloor fuel tanks:

Trim the boat to the same angle in the water each time you follow procedure A.

Mostly use procedure B below when adding fuel, but completely fill the tank and follow procedure A about every tenth time you add fuel.

BWhen you partially fill a tank

1Add fuel to a tank and write down how much fuel you add.

2From the Fuel window, press and select Add fuel.

3On a multi-tank boat, select the tank that you have added fuel to.

4Change the number to the amount of fuel that you added.

Note: If you follow procedure B every time you add fuel, then a small error will accumulate, because it is hard to measure exactly how much fuel you add. To avoid this, completely fill the tank and follow procedure A about every tenth time you add fuel.

46	Northstar Explorer 657 Installation and Operation Manual

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Contents Explorer Could result in minor or moderate injury Possible injury or deathCould result in death or serious injury DamagePage Contents Tides window User card window 15 AIS Installation Northstar petrol/gasoline sensors Installation Other Nmea instrumentsIntroduction Plug-in cards Cleaning and maintenanceOverview 657 can use two kinds of plug-in cardTurn the display unit off see -2 and put the dust cover on Changing the plug-in cardRemoving the display unit Replacing the display unitBasic Operation Using the keysUsing the menus Overview of the keysTurning on and off / auto power Turning on manually Turning off manuallyTo cancel MOB or set another MOB Backlight and night modeNight mode Man overboard MOBSimulate mode Alarms657 has user settable alarms see section Main windows Page Multi window displays Adding a favorite display to the list Favorite displaysSelecting a favorite display Deleting a favorite display from the listCompass Setting the data header for a displayData header Displays can show data at the top, called the data headerIntroduction to navigating Navigation ChartGoing to a waypoint or to a point on the chart Navigating to a pointPreparing Starting a route from the chart windowCancelling a route Starting a route from the routes windowTypical chart window shows Chart windowTo go to the Chart window, press then select Chart Land Sea Cursor see section Typical waypoint see sectionChart symbols and information Chart modesChart scale Latitude and longitudeDistance and bearing calculator Finding a chart symbolPerspective view Projected courseTime intervals Interval Track Track 2, 3, 4 or Navigation Highway windowTracks and tracking Interval Track Track 2, 3, 4 orNavigation Waypoints Waypoints windowCreating a new waypoint Displaying a waypoint on the chartManaging waypoints Moving a waypointChanging a waypoint’s data Navigation RoutesDeleting all waypoints Sort WaypointsManaging routes Creating a new route from the chart windowRoutes window Creating a new routeEditing a route Displaying a route on the chartEditing a route from the chart Creating a new route from the routes windowSatellites Satellite window UsingSonar fishfinding Introduction Satellite window showsInterpreting the display Strength of echoesWater Bottom typesFrequency and cone width DepthShadows When to use 50 kHzWhen to use 200 kHz Example of shadowsWhen to use Mixed When to use 50/200 kHzKHz display 200/50 Khz display Mixed display Minute ago Seconds ago NowFish symbols Fish detection and display Where to find fishFish arches Auto Range657 has two range modes Zoom range and offsetGain window Changing modeGain and threshold This display is called the gain windowSonar fishfinding Displays Sonar history display no splitScreen. Press to return to the most recent echo Extended history modeSonar Zoom and Full Screen Zoom displays History position barSonar Bottom display Sonar 50/200 displayFish recognition Setting gain and thresholdSonar A-Scope display Bottom typeSelecting a Gauges layout Gauges windowData window Changing a gauge layoutFuel window Fuel functions and displayWhat the fuel computer does Fuel window showsWhen you add or remove fuel When you remove fuel Low fuel alarmBoat speed sensors Speed Log Economy Range Water speed and ground speedSpeed Log Economy Start running the boat in a straight line Fuel consumption curvesMaking a curve Press twice, then select FuelDeleting a curve Using a curveRenaming a curve Selecting a curveCalibration Setup enginesTo the reading of the fuel dispenser’s gauge Then press Tides window Choosing the date of the tide chartTides window shows data for the chosen date User card window has User card windowSaving data to the user card Sorting the file names 15 AISDeleting a file from the user card Rereading the file informationViewing AIS Vessels Vessels Safety msgs rxAIS Windows Displaying Full AIS Details16 DSC/Buddy track windows Displays Distress PollCreating a waypoint Using the displays Displaying a boat on the chartBoat positions Deleting a boatSetting up SmartCraft Setup option menusTime see Favorites see 17-14 Simulate see Factory reset Setup SystemAuto power off LanguageRotation Setup ChartSetting map datum PaletteApplying a map shift Nmea datum offsetMap shift Map shiftLat/lon grid Frequency Setup SonarPulse power Digit sizeGPS Source Setup GPSSetup Fuel Dgps SourceSource Setup enginesSetup tanks Num enginesTime Setup TrackDistance RecordReset total dist Setup AIS Show Dangerous OnlySetup Logs Reset engine hoursArrival radius Anchor alarm Setup AlarmsSymbol Alarm Alarm sounds when it is onSetup Comms Setup UnitsTemperature FuelSpeed Setup CalibrateTemperature filter Speed filterKeel Offset Setup TimeSetup Favorites Speed rangeSimulate InstallationSetup Simulate ModeOptional sensors and instruments Installation What comes withInstallation Options and Accessories GPS or Dgps antenna For GPS navigation see sectionConnections Power/data cablePin Wire Function Display unit 18-3 Black Yellow BlueBracket Mounting Installation The display unitFlush Mounting There are two mounting arrangementsBlack Power/data cable Red Yellow Fuse 2A Installation Power/data cableBasic power Auto powerInstalling an antenna Installation GPS antenna Selecting an antennaDgps Source Installation Northstar petrol/gasoline sensors Installation Sonar transducerBlue Sonar cable Either Installation Other NavBus instruments Installation SmartCraftNavBus Installation Northstar VHF radio Installation Other Nmea instrumentsIf the display unit is bracket mounted, adjust Installation Setup and testEnter setup data to set up the 657 to your Tilt and rotation for best viewing and handAppendix a Specifications Adindan Afgooye List of datumsSouth American Appendix B Troubleshooting General problemsGPS navigation problems Fuel consumption problemsErratic Fuel Flow readings Sonar fishfinding problemsTwin engine installation shows only one flow rate There is no reading for fuel economyBottom is displayed too far up the screen Bottom is not displayedThere is a double bottom trace displayed Appendix C Glossary and navigation data GlossaryNavigation data TBMFT!COUNBSJOFDPN