If you are setting up over a specific point, use the laser plummet to align the instrument exactly over the ground mark. Setting the Job and Station
Turn on the electronic laser plummet by powering on the instrument.
To maintain high precision, Leica recommends a user calibration every 3-6 months, or after transport and before high-precision work.
Set a descriptive code for the object (e.g., TREE , CURB , WALL ). Sight the target using the optical crosshairs. leica tcr805 total station user manual work
Use this method when you cannot set up directly over a known control point but have visual access to two or more visible targets with known coordinates. Navigate to > Station Setup . Select Resection as your method.
The operational efficacy of the TCR805 is dictated by the operator's ability to navigate its interface. The manual breaks down the keyboard functions, screen displays, and the menu structure. It distinguishes between standard measurement modes and specific programs, such as "Set Out" (staking) and "Tie Distance" (remote height measurement). The manual guides the user through the initialization of the EDM (Electronic Distance Measurement), explaining the difference between "IR" (Infra-Red) mode for reflector prisms and "RL" (Reflectorless) mode. For the TCR805, the reflectorless capability is a significant feature, and the manual provides crucial context on how to interpret accuracy specifications when measuring against non-cooperative surfaces. By following the procedural text, the user learns to input station coordinates, define backsight points, and calculate orientation—processes that form the backbone of topographic surveying.
Enter the Point ID of your Backsight target ( BS_1 ). Input its known Easting, Northing, and Elevation. Input the height of the prism target ( If you are setting up over a specific
Turn the instrument until the electronic vial display on the screen aligns parallel to two of the tribrach footscrews.
[Main Menu] └── [1. Manage] └── [Jobs] └── [F1: NEW] ──> Enter Job Name & Operator Press the key. Select 1. Manage and then press Jobs . Press F1 (NEW) to create a new project folder.
Add the operator's name or notes if necessary, then press (F4). 4. Station Setup and Orientation Set a descriptive code for the object (e
Ensure the tripod head is relatively level by visual inspection. 2. Mounting and Centering
Example: Control setup for small site (assume metric)
The total station displays the horizontal distance, slope distance, and height difference between the two targets. Data Export and Maintenance Data Transfer