the main features:
the basic functions of a green arrow pointing north, S Guide W E means east or west
II: measuring the azimuth
1, with a line of sight (wire) alignment markers on the ground (to ourselves) as the compass: the trees, the buildings feature marked on the map and markers, metal sight lines, the grooves on the lens Three in a line.
2, the angle of the lens is read by dial long yellow line and the north-south direction of the magnetic pole (inner scale) is the target azimuth.
[Note]:
1. Open the cover when the compass (with wire), please 90 degree angle (at right angles) to the base 2, and the base angle lens, you can easily see to dial long yellow line is appropriate.
2.please use a horizontal position and away from metal or magnetic objects in order to avoid bias pointer
Use [Notes]
From barbed wire> 10 m;
From high-voltage lines> 55 m;
From car or plane> 20 m;
From magnetic objects contain such a variety of magnets, external magnetic speaker> 10 m;
From magnetic objects such as a weak magnetic snaps, etc> 0.5 m.
[Equipment maintenance and maintenance]
Do not place the instrument near ferromagnetic materials. In order to avoid loss of magnetic properties.
Surveying objects unavailable beat ruler, so as not to affect the measurement accuracy.
Mirrors do not twist, so as not to affect the targeting and look read partition, the surface should keep clean, do not use a dirty cloth, hand to wipe.
Instrument closed when not in use. Into the box. Be careful not to collide
When plexiglass convex mirror and table covers dirt, available white flannel or cotton flower graze the surface, if necessary, use toothpaste to polish.
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