Setting the compass zone, function - GF54.50-P-2014GH

MODEL 163 as of 1.9.00 with CODE (245) Trip computer

Setting the compass zone (declination)

Determine the compass zone (1 - 15) using the zone maps shown below.
Ignition: ON
Press the Mode button (right button, N41s2) until the compass appears on the display of the trip computer (N41).
Press the Reset button (left button, N41s1) to jump to the zone setting mode
Press the Reset button until the number of the compass zone required (1 -15) is displayed
Press the Mode button twice to return to the compass display and save the displayed compass zone.

Examples

San Francisco :
On the zone map of North America San Francisco is located in compass zone 4 .
Berlin :
On the zone map of Europe and Africa Berlin is located in compass zone 8 .
Bonn:
On the zone map of Europe and Africa Bonn is located in compass zone 9 .

To maintain the best possible route display, it may be necessary to change the compass zone en route. (For example, the vehicle passes through two compass zones when driving from Bonn to Berlin (see examples).

Earth's magnetic field

The compass uses the earth's magnetic field to determine the direction in which the vehicle is facing.

The magnetic poles (north/south) of the earth, however, are slightly different to the geographical north and south poles. The magnetic axle of the earth is tilted approximately 20 ° compared to the earth's rotational axis. If the earth's magnetic field is to be used to determine direction, therefore, various correction factors must be taken into account for the different zones of the earth. This is done by calculating 15 different compass zones. The declination is approximately the same at each place within a zone.

If the correct compass zone is entered, the compass can compensate for the earth's magnetic field and therefore display the route with a relatively high degree of precision (± 10°).

Zone map for Europe and Africa

Fig 1: Identifying Zone Map For Europe And Africa

Zone map for Asia and Australia

Fig 2: Identifying Zone Map For Asia And Australia

Zone map for North America

Fig 3: Identifying Zone Map For North America

Zone map for South America

Fig 4: Identifying Zone Map For South America

Trip computer control module, location/task/ design	GF54.50-P-4100GH
Electronic compass, location / purpose / design / function	GF54.50-P-4101GH