Setup over a Known Point (enter station coordinates and orientation) Setup to Measure | 21 1. Place the tripod approximately over the ground point. 2. Inspect the tripod from various sides and correct its position so that the tripod plate is roughly horizontal and above the ground point (illustration, bottom left). 3. Push the tripod legs firmly into the ground and use the central fixing screw to secure the instrument on the tripod. 4. Switch on the laser plummet (or, for older instruments, look through the optical plummet) and turn the footscrews so that the laser dot or the optical plummet is centered on the ground point (illustration, bottom middle). 5. Center the bull’s-eye bubble by adjusting the lengths of the tripod legs (illustration, bottom right). 6. After accurately levelling up the instrument, release the central fixing screw so that you can displace it on the tripod plate until the laser dot is centered precisely over the ground point. 7. Tighten the central fixing screw again. 8. Enter station coordinates (refer to user manual). 9. Aim to another known point, enter the coordinates or horizontal direction angle. 10. Now your instrument is setup and oriented. You can now stake out coordinates or measure more points in this coordinate system.
Surveying Made Easy
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