Pentax ETH-310 - Manual (Page 28)

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4. Preparation for Surveying
4.1 Setting up the instrument
Adjust the tripod legs so that a height suitable for surveying is
obtained when the instrument is set on the tripod.
A Set the tripod and fix the metal shoe firmly into the ground so that
the tripod head is as level as possible and centered above the station
point. If the tripod head is disturbed by the action of fixing the metal
shoe into the ground, correct the level by extending or retracting each
leg of the tripod.
Set the instrument on the tripod head; insert the tripod center screw
into the instrument bottom plate and tighten firmly. 1
2
3
Tripod head
Center screw
Tripod
Bottom plate