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FACTS
Changing the maximum telescope elevation from 800 mils to 1100 mils permits
greater use of the aiming circle.
The operating instructions in this manual apply to the M2 and M2A2 Aiming Circle.
The aiming circle is basically a telescope mounted on a base which permits exact
azimuth and elevation measurements.
The main housing is placed in a true level condition by using two types of levels:
a. The circular level is used for coarse leveling.
b. The tube levels are used for fine leveling.
A tube level on the elbow telescope permits the elbow telescope to be adjusted to a
true horizontal line of sight.
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