15
NOTE:
Quick distance measurement not present in 7x50C and 10x42 models.
3.6 COMPASS USING (7x50C AND 8x30C ONLY)
Be away from the ferromagnetism material during the working condition. (such as cannon, tanks,
battle vehicle, high voltage, transformer substation, ferromagnetic mill, electric & ferromagnetic
appliance),otherwise the compass will work in big error or improperly.
In order to ensure the compass working properly and accurately, we divide the global into 5 areas (A. B.
C. D. E) according to the international standard. Please choose the right compass before you order.
A area: the country and area north to 60 degree north latitude, including all the Canada.
B area: the country and area between 40 degree north latitude and 60 degree north latitude.
C area: the country and area between 20 degree north latitude and 40 degree north latitude.
D area: the country and area between 20 degree north latitude and 20 degree south latitude.
E area: Australia, and the country and area south to Angola and Zambia.
The azimuth angle can be measured through the compass built into the right half of the body . It shows
the azimuth of the object relative to the observer. Each graduation of the compass equals one degree
of angle. When the object lies in the north from you, the compass shows 0(degree) .And it will increase
when you turn clockwise. 90°means the object lies in the east from you, 180°means the south and
270°means the west.
Figure 15. International Standard Areas
Figure 16. Azimuth Angle
