Ensure the instrument is perfectly centered over the survey marker. Adjust the tribrach screws to bring the plummet onto the mark.
The Leica TCR805 is a highly reliable, high-precision electronic total station widely used in surveying, engineering, and construction staking. Known for its friction clutches, endless drives, and robust onboard software, mastering this instrument requires a solid understanding of its core menu structures and operational workflows.
Once the tilt errors are near zero (less than 5 seconds), press .
Choose between bearing or back-sight point. If using a known back-sight, input the coordinate, aim at the prism, and measure. 4. Performing Surveys and Measurements leica tcr805 total station user manual work
Ensure the laser dot is pointed correctly. The manual warns to avoid pointing the laser at eyes. 5. Data Management and Transfer
A: Verify that the EDM mode is set to "RL" or "Prismless." Also, note the laser spot size expands over distance; at 100m, it is approximately 12mm x 40mm, which may miss small targets .
The TCR805 typically uses a serial connection (RS232) or a specialized Leica USB data cable. Using software like Leica Geo Office (LGO) or Leica Infinity, you can "Download" the job file. Common export formats include GSI, DXF, and CSV. Maintenance and Calibration Ensure the instrument is perfectly centered over the
Enter the Station Name (the point the instrument is sitting over). Input the coordinates of the station point ( ) if working in a local or grid system.
The TCR805 allows you to choose between Prism, Tape (reflector tape), or Reflectorless modes. Angle Measurement: Fast and accurate horizontal ( ) and vertical ( ) measurements. Coordinate Measurement: Direct storage of XYZcap X cap Y cap Z coordinates. 3.3. Key Application Programs
Features a crisp LCD screen, numeric keys, navigation arrows, and fixed function keys (like USER , FNC , MENU , and ESC ). Known for its friction clutches, endless drives, and
The screen will display ΔHz (Delta Horizontal Angle), showing how much you need to rotate the total station. Rotate the instrument until ΔHz reads 0° 00' 00" . Guide your rodman along that exact line of sight.
Example: Single-operator stakeout with robotic tracking
Turn on the instrument, checking the battery level and ensuring the internal memory is ready for new data. 2. Navigating the Interface and Menus