Northstar Explorer 650 Installation and Operation Manual6
It is the owner’s sole responsibility to install and use the instrument in a manner that will not cause
accidents, personal injury or property damage. The user of this product is solely responsible for
observing safe boating practices.
Global Positioning System: The Global Positioning System (GPS) is operated by the US
Government which is solely responsible for its operation, accuracy and maintenance. The GPS
system is subject to changes which could affect the accuracy and performance of all GPS equipment
anywhere in the world including the Explorer. Whilst the Northstar Explorer is a precision navigation
instrument, it can be misused or misinterpreted, which can result in its use being unsafe. To reduce
the risk of misusing or misinterpreting the Explorer, the user must read and understand all aspects of
this Installation and Operation manual. We also suggest that the user practice all operations using the
built in simulator before using the Explorer at sea.
Electronic Chart: The electronic chart used by the Explorer is an aid to navigation and is designed
to supplement the use of official government charts not replace them. Only official government
charts supplemented by notices to mariners contain the information required for safe and prudent
navigation. Always supplement the information provided by the Explorer with other plotting sources
such as observations, depth soundings, radar and hand compass bearings. Should the information
not agree then the discrepancy must be resolved before proceeding any further.
Sonar fishfinder: The accuracy of the sonar depth display can be limited by many factors, including
the type of the transducers, the location of the transducers and water conditions. It is the user’s
responsibility to ensure the Explorer transducers are installed and used correctly.
Fuel Computer: Fuel economy can alter drastically depending on the boat loading and sea
conditions. The fuel computer should not be the sole source of information concerning available
fuel onboard and the electronic information should be supplemented by visual or other checks of
the fuel load. This is necessary due to possible operator induced errors such as forgetting to reset the
fuel used when filling the tank, running the engine with the fuel computer not switched on or other
operator controlled actions that may render the device inaccurate. Always ensure that adequate fuel
is carried onboard for the intended trip plus a reserve to allow for unforeseen circumstances.
THIS MANUAL REPRESENTS THE EXPLORER 650 AS AT THE TIME OF PRINTING. NORTHSTAR
RESERVES THE RIGHT TO MAKE CHANGES TO SPECIFICATIONS WITHOUT NOTICE.
Important
The Explorer 650 is set up with default units of feet, °F (Fahrenheit), US gallons and knots.
To change the units, see section 17-9.
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