compass calibration
Before use, the compass must be calibrated.
Since a compass uses the earth’s magnetic field, you must be aware of large metallic objects, such as vehicles or bridges, or objects that give off electromagnetic radiation, such as televisions or computers, which could affect the magnetic field around the watch. If the compass is calibrated near such objects, it will only work properly in that same location. If the compass
is calibrated away from such objects, it will not work properly near them. For best results, calibrate in the area of intended use.
In calibrating and taking headings, it is important, as with all compasses, to keep the compass level. Calibrating or taking a heading when the watch is not level can result in large errors. Also avoid areas that may exhibit higher
than normal concentrations of hard and soft iron, as they may cause inaccurate headings. Whenever a heading is suspect, recalibrate.
Do not store the watch near any source of magnetism, such as a computer, appliance, or television, as the watch can take on a magnetic charge, yielding inaccurate headings. Typical accuracy of
To calibrate the compass:
1.Pull the crown to its middle position and wait for the indicator hands to stop moving.
2.Keep the watch level or place it on a level surface (if the band interferes, place the watch on an inverted cup). The watch may be face down, but take care to protect the watch face.
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