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P17
3 PREPARATION FOR SURVEYING
3 PREPARATION FOR SURVEYING
3-1 Centering and Leveling of the Instrument
Setting up the instrument and the tripod
Adjust the tripod legs so that a height suitable for observation is obtained
when the instrument is set on the tripod.
Set the tripod and fix the metal shoes firmly
into the ground so that the tripod head is as level as
possible, and the Tripod head coincides with the
station on the ground. Fasten the leg screws.
If the tripod head is mis-leveled by the action of
fixing the metal shoes into the ground, correct the
level by extending or retracting each leg of the tripod.
3 PREPARATION FOR SURVEYING
3-2 Laser plummet
Laser plummet model
The laser plummet is not set to be ON at factory shipping. The laser plummet operation of power
supply ON can be set by command No520, LD PLUM & E VIAL.
[For the Detaching type laser plummet equipment model ]
Turn on the laser plummet function by pushing the Laser key.
Match the position with the leveling screw so that the laser mark may come on ground mark.
[For the Shift type laser plummet equipment model ]
Turn on the laser plummet function by pushing the Laser key.
Match the position by the tripod so that the laser mark may come on the ground mark.
The plumb fixation screw is loosened, and the upper plate is pushed by the tip of a finger, and a
central mark is matched to the ground mark.
Tighten the plumb fixation screw.
Loosen the horizontal fixed screw, and rotate the instrument by 90 , and confirm the vial of the
circular vial is at the center at any position.
Correct the vial with the leveling screw when the vial comes off from the center.
[Brightness adjustment of laser]
Neither a state of the surface of ground mark nor a surrounding environmental factor might see the
laser spot easily. Please adjust the brightness of the laser if necessary.
Metal shoe
Contract
Instrument
Base plate
Tripod head
Center screw