Warning – NorthStar Navigation Multi-Function Unit M84 User Manual

Page 5

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Northstar M121/M84 Installation and Operation Manual

4

It is your sole responsibility to install and use the instrument and transducer(s) in a manner
that will not cause accidents, personal injury or property damage. Always observe safe boating
practices.

The choice, location, and installation of transducers and other components of the system are
critical to the performance of the system as intended. If in doubt, consult your Northstar dealer.

To reduce the risk of misusing or misinterpreting this instrument, you must read and understand
all aspects of this Installation and Operation Manual. We also recommend that you practice all
operations using the built-in simulator before using this instrument at sea.

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
is subject to changes which could affect the accuracy and performance of all GPS equipment
anywhere in the world, including this instrument.

Electronic Chart: The electronic chart used by this instrument is an aid to navigation designed
to supplement, not replace, official government charts. Only official government charts
supplemented by notices to mariners contain the information required for safe and prudent
navigation. Always supplement the electronic information provided by this instrument with
other plotting sources such as observations, depth soundings, radar and hand compass bearings.
Should the information not agree, the discrepancy must be resolved before proceeding any
further.

AIS: The AIS features on this chart-plotter are designed as a safety aid only and do not guarantee
safety at sea. AIS transmission is mandatory on some, but not all, vessels. You should check
your local laws and regulations for requirements in your area. As a result of different legal
requirements, different vessel sizes and uses, you should not assume that your AIS equipped
chart-plotter will show the location of ALL vessels in your area. Careful prudence, judgement, and
safe navigation practices should always be exercised. AIS should be used to complement radar,
but AIS is not a substitute for radar.

Sonar performance: The accuracy of the sonar depth display can be affected by many
factors, including the type and location of the transducer and water conditions. Never use this
instrument to gauge depth or other conditions for swimming or diving.

Fuel data: Do not rely on this instrument as the sole source of information about fuel available
onboard. You must supplement this instrument’s fuel data with visual or other checks of the
fuel available. This is necessary because possible operator errors, such as forgetting to reset the
fuel used when filling the tank or running the engine with this instrument not switched on, can
render this instrument inaccurate. Fuel economy can change drastically depending on boat
loading and sea conditions. Always carry adequate fuel onboard for the intended trip, plus a
reserve to allow for unforeseen circumstances.

Simulate mode: Never have simulate mode on when you are navigating on the water.

Failure to adhere to these warnings may lead to death, serious injury or property
damage. Northstar disclaims all liability for installation or use of this product that
causes or contributes to death, injury or property damage or that violates any law.

Warning

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