Features; Calibration - WayFinder z250 Operation Manual

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BASIC MODE
The Wayfinder must be in Basic mode to use
any of the features described in this section.

Features

The Basic mode provides the current com-
pass heading and allows you to program your
compass.
Within the Basic mode there are three
programmable functions:
1. Calibration: the compass is calibrated to
compensate for magnetic fields.
2. Compass Shut-Off: the compass shut-off
value is selected.
3. Backlight Shut-Off: the backlight shut-off
value is selected.

Calibration

Calibration allows the unit to separate the
earth's magnetic field from the magnetic
fields generated by external influences, such as
your vehicle, and therefore provide accurate
heading information.
Before beginning calibration, the unit must be
mounted in the location where it will be used
in your vehicle. Calibration is best performed
on a level section of pavement, such as an
empty parking lot or a non-busy street. With
a marine vehicle, calibration is best performed
in a calm harbor or a marina.
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