User manual NORTHSTAR EXPLORER 650

[. . . ] Explorer 650 Chartplotter and Fishfinder Installation and Operation Manual www. northstarnav. com IMPORTANT SAFETY INFORMATION Please read carefully before installation and use. DANGER !It is used to alert you to potential personal injury hazards, Obey all safety messages that follow this symbol to avoid possible injury or death. WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury CAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage. [. . . ] Mostly use procedure B below when adding fuel, but completely fill the tank and follow procedure A about every tenth time you add fuel. 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. C When you remove fuel Repeat procedure B, but subtract the fuel you have removed from the original amount of fuel in the tank to calculate the amount of fuel now in the tank. 46 Northstar Explorer 650 Installation and Operation Manual 12-2 Fuel display Fuel display without engine RPM To go to the Fuel display, press , select Other, then select Fuel. The display is different if engine RPM is available (requires SmartCraft to be installed): The Fuel display shows Used The total fuel used since this was last reset with the Clear Used command. Remaining The amount of fuel remaining in the tank. For twin engine installations, the fuel flow for each engine is shown separately. This is useful for checking that both engines are under the same load. Speed If the Explorer has both GPS and paddlewheel speed available then you can select which to use. The choice affects the calculated Range and Economy (see section 17-5 Speed source). If the Explorer uses a paddlewheel sensor to measure speed, then the speed must be accurately calibrated (to calibrate the Explorer paddlewheel, see section 17-11). Consumption The fuel used per unit of distance travelled. The smaller this number, the better the fuel economy. Adjust the throttle and trim to achieve the lowest consumption. Economy Economy is the distance travelled per unit of fuel used. The Explorer calculates this from the boat speed and fuel used. The bigger this number, the better the fuel economy Range The estimated boat range at the current fuel flow. Fuel display with engine RPM Northstar Explorer 650 Installation and Operation Manual 47 12-3 Fuel consumption curves A fuel consumption curve is a powerful tool for assessing your boat performance in different conditions and for helping you to run at the most economical speed for the conditions. Fuel consumption curves require engine RPM, which requires SmartCraft to be installed. 12-3-1 Making a fuel consumption curve Making a fuel consumption curve requires running the boat in a straight line through the engine's full RPM range for about 15 minutes. For your first curve, choose a calm day with light wind and little current; have a typical load and a freshly cleaned hull. Then you can make fuel consumption curves for different boat, weather or sea conditions. Compare these with your first curve to see how your boat's performance changes with conditions. Making a curve 1 2 3 Start running the boat in a straight line. Press one or more times until the Setup menu is displayed, then select Fuel. [. . . ] Goto - A simple way of navigating straight to a waypoint or to the cursor position (see section 3-1). A satellitebased navigation tool (see section 7). Leg - The straight segments of a route between waypoints. A route with four waypoints has three legs. [. . . ]