NorthStar Navigation EXPLORER 657 Fuel functions and display, What the fuel computer does

Page 45

12 Fuel functions and display

The Fuel functions require optional petrol/gasoline or SmartCraft™ fuel sensors to be installed and set up.

12-1 What the fuel computer does

Each engine has a flow sensor installed to measure the engine’s fuel flow.

The 657 uses these flows, together with boat speed and engine RPM if available to estimate the fuel remaining in the tank(s), fuel used, range and fuel economy. This data is displayed on the fuel window (see section 12-2).

You can:

display the fuel used during a trip (see section 12-2)

set low fuel alarms (see section 12-4)

make fuel consumption curves - graphs of fuel consumption and boat speed as a function of engine RPM - to monitor and optimise boat performance.

(see section 12-6)

! WARNING

To ensure the fuel data is accurate:

When you add or remove fuel from a tank, tell the 657 (see section 12-3)

If the boat has petrol/gasoline sensors, calibrate them during installation or if the fuel readings seem inaccurate (see section 12-7)

Choose an appropriate type of boat speed sensor to calculate economy, range and the fuel consumption curve (see section 12-5)

If the boat uses a paddlewheel sensor to measure speed, calibrate it during installation or if the speed readings seem inaccurate.

12-2 Fuel window

To go to the Fuel window, press , select More, then select Fuel.

The display differs according to the number of engines and tanks. If engine RPM is available and if you have made and selected a Fuel Consumption Curve (see section 12-6), press to switch between a Summary or a Fuel curve display.

The Fuel window shows

Speed

To select a boat speed sensor, see section 12-5-1.

RPM (if available)

If engine RPM is not available, the display shows depth.

Remaining

The fuel remaining in the tank(s) is shown as a vertical gauge on the right of the display. The height of the yellow bar(s) show how much fuel remains in the tank(s). If you have set a low fuel

alarm (see section 12-4), a red bar shows the level at which the alarm will trigger. If there are two tanks, the left bar shows the port tank, the right bar shows the starboard tank.

Used

The fuel used during a trip. On a multi-engine boat, the data for the port engine is on the left of the display.

When you want to start measuring how much fuel is used, go to the Fuel window and:

In a single engine boat, press and select Clear used.

In a multi-engine boat, the fuel used by each engine and the total fuel used are shown.

Press , select Clear used and select:

Port or Starboard to clear the fuel used by one engine

Both to clear the total fuel used.

Northstar Explorer 657 Installation and Operation Manual

45

Page 44 Page 46
Image 45
Page 44 Page 46
Contents Explorer Could result in death or serious injury Possible injury or deathCould result in minor or moderate injury DamagePage Contents Tides window User card window 15 AIS Installation Other Nmea instruments Installation Northstar petrol/gasoline sensorsIntroduction Overview Cleaning and maintenancePlug-in cards 657 can use two kinds of plug-in cardRemoving the display unit Changing the plug-in cardTurn the display unit off see -2 and put the dust cover on Replacing the display unitUsing the menus Using the keysBasic Operation Overview of the keysTurning off manually Turning on and off / auto power Turning on manuallyNight mode Backlight and night modeTo cancel MOB or set another MOB Man overboard MOBAlarms Simulate mode657 has user settable alarms see section Main windows Page Multi window displays Selecting a favorite display Favorite displaysAdding a favorite display to the list Deleting a favorite display from the listData header Setting the data header for a displayCompass Displays can show data at the top, called the data headerGoing to a waypoint or to a point on the chart Navigation ChartIntroduction to navigating Navigating to a pointCancelling a route Starting a route from the chart windowPreparing Starting a route from the routes windowTo go to the Chart window, press then select Chart Chart windowTypical chart window shows Land Sea Cursor see section Typical waypoint see sectionChart scale Chart modesChart symbols and information Latitude and longitudePerspective view Finding a chart symbolDistance and bearing calculator Projected courseTracks and tracking Navigation Highway windowTime intervals Interval Track Track 2, 3, 4 or Interval Track Track 2, 3, 4 orWaypoints window Navigation WaypointsManaging waypoints Displaying a waypoint on the chartCreating a new waypoint Moving a waypointDeleting all waypoints Navigation RoutesChanging a waypoint’s data Sort WaypointsRoutes window Creating a new route from the chart windowManaging routes Creating a new routeEditing a route from the chart Displaying a route on the chartEditing a route Creating a new route from the routes windowSatellites Sonar fishfinding Introduction UsingSatellite window Satellite window showsStrength of echoes Interpreting the displayFrequency and cone width Bottom typesWater DepthWhen to use 200 kHz When to use 50 kHzShadows Example of shadowsWhen to use 50/200 kHz When to use MixedMinute ago Seconds ago Now KHz display 200/50 Khz display Mixed displayFish detection and display Where to find fish Fish symbolsFish arches 657 has two range modes RangeAuto Zoom range and offsetGain and threshold Changing modeGain window This display is called the gain windowSonar history display no split Sonar fishfinding DisplaysSonar Zoom and Full Screen Zoom displays Extended history modeScreen. Press to return to the most recent echo History position barSonar 50/200 display Sonar Bottom displaySonar A-Scope display Setting gain and thresholdFish recognition Bottom typeData window Gauges windowSelecting a Gauges layout Changing a gauge layoutWhat the fuel computer does Fuel functions and displayFuel window Fuel window showsWhen you add or remove fuel Low fuel alarm When you remove fuelBoat speed sensors Water speed and ground speed Speed Log Economy RangeSpeed Log Economy Making a curve Fuel consumption curvesStart running the boat in a straight line Press twice, then select FuelRenaming a curve Using a curveDeleting a curve Selecting a curveSetup engines CalibrationTo the reading of the fuel dispenser’s gauge Then press Choosing the date of the tide chart Tides windowTides window shows data for the chosen date User card window User card window hasSaving data to the user card Deleting a file from the user card 15 AISSorting the file names Rereading the file informationViewing AIS Vessels AIS Windows Safety msgs rxVessels Displaying Full AIS DetailsDisplays Distress Poll 16 DSC/Buddy track windowsBoat positions Using the displays Displaying a boat on the chartCreating a waypoint Deleting a boatSetting up Setup option menus SmartCraftTime see Favorites see 17-14 Simulate see Auto power off Setup SystemFactory reset LanguageSetting map datum Setup ChartRotation PaletteMap shift Nmea datum offsetApplying a map shift Map shiftLat/lon grid Pulse power Setup SonarFrequency Digit sizeSetup Fuel Setup GPSGPS Source Dgps SourceSetup tanks Setup enginesSource Num enginesDistance Setup TrackTime RecordSetup Logs Setup AIS Show Dangerous OnlyReset total dist Reset engine hoursSymbol Alarm Setup AlarmsArrival radius Anchor alarm Alarm sounds when it is onTemperature Setup UnitsSetup Comms FuelTemperature filter Setup CalibrateSpeed Speed filterSetup Favorites Setup TimeKeel Offset Speed rangeSetup Simulate InstallationSimulate ModeInstallation Options and Accessories Installation What comes withOptional sensors and instruments GPS or Dgps antenna For GPS navigation see sectionPin Wire Function Power/data cableConnections Display unit 18-3 Black Yellow BlueFlush Mounting Installation The display unitBracket Mounting There are two mounting arrangementsBasic power Installation Power/data cableBlack Power/data cable Red Yellow Fuse 2A Auto powerInstallation GPS antenna Selecting an antenna Installing an antennaDgps Source Installation Sonar transducer Installation Northstar petrol/gasoline sensorsBlue Sonar cable Either Installation SmartCraft Installation Other NavBus instrumentsNavBus Installation Other Nmea instruments Installation Northstar VHF radioEnter setup data to set up the 657 to your Installation Setup and testIf the display unit is bracket mounted, adjust Tilt and rotation for best viewing and handAppendix a Specifications List of datums Adindan AfgooyeSouth American General problems Appendix B TroubleshootingFuel consumption problems GPS navigation problemsTwin engine installation shows only one flow rate Sonar fishfinding problemsErratic Fuel Flow readings There is no reading for fuel economyBottom is not displayed Bottom is displayed too far up the screenThere is a double bottom trace displayed Glossary Appendix C Glossary and navigation dataNavigation data TBMFT!COUNBSJOFDPN
Top Page Image Contents