Step by step using a total station
- 1. Step by step using a total station
- 2. Setting up Apparatus Choose Target Locations - At the site, appropriate location must be chosen in order to begin being marker locations. Then tripods are placed on these locations. - When tripods are set up, ensure they are level and directly over survey point.
- 3. Mount the instrument - After tripod locations are set, the total station and prisms can be mounted onto tripods. The total stations are secured with the centring screw. - Ensure the levelling and position of the tripod are not moved during this process.
- 4. Levelling the Total Station Before any measurements can be made and recorded, the total station and any other used equipment for the process must be levelled, otherwise the measurements taken will not provide a high level of accuracy. The total station is levelled using the foot screws displayed above, aligning the bullseye bubble until centre.
- 5. Focus on Survey Point Once Mounted, position the total station so that it is facing the prism. Ensure to align the peep sights with the triangle above the prism (gun site).
- 6. Adjust Image to Focus Using the focus rings, adjust the focus of the cross hairs and the image until they are both sharply focussed and visible. This process can vary slightly from person to person depending on visual capabilities.
- 7. Measuring and Checking Angles step 1 – measuring angles Set the current position of the total station at 0 degrees, then rotate the apparatus so that it is facing the desired prism. Align the instrument with the gunsight as previously explained and record the given visual angle. Step 2 – checking angle Flip the total station so that the reading now says 180 degrees, then realign the total station with the first prism before recording the second reading. Minus 180 degrees from the second reading and the value should be close or exact to the same value to the first angle measurement.