Preliminaries of Surveying and leveling.

1: Setting up the instrument.



tripod setting in surveying
  • Unbuckle the band around the tripod legs and loosen the extension clamp screws.
  • With the tripod closed, extend the tripod legs until the tripod head is roughly at eye level, then re-tighten the clamp screws.
  • Spread the tripod legs so that the leg tips from a regular triangle on the ground.

  • Make sure that the tripod head is approximately level. Fix the tripod shoes firmly into the ground.
  • Hold the instrument on the tripod head and tighten the centering screw.
  • When using the spherical head tripod, slightly loosen the centering screw, hold the base plate in both hands, and slide it across the tripod head until the bubble is approximately centered in the circular level.
  • Tighten the centering screw.
  • Adjust the leveling foot screws until the bubble is exactly centered in the center circle.



1: Setting up the instrument.

2: Focusing and Sighting.

  • Sight  a bright, featureless background.
  • Turn the eyepiece fully clockwise and focus the reticle by gradually turning the eyepiece anticlockwise while looking through the telescope. Stop turning just before the reticle image becomes blurred. In this way, frequent reticle focusing can be displaced with since your eye is focused at infinity.
  • Align the instrument on the staff using the peep sight and turn the horizontal fine motion screw to center the staff in the filed of view. Turn the speed focusing knob to eliminate parallax (between the staff and the reticle.). The reverse rotation will give a fine focusing motion.
Preliminaries of Surveying and leveling.

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