After calling the command Settings->Theodolite you can define an arbitrary number of theodolites, which you use for measuring, with their features and instrument errors.
These defined theodolites can be used for processing the measured data lists Field book processing).
First, enter the theodolite name in the dialog window, and then enter all its features (instrument errors and tolerances). If you don't know the instrument errors, set them first as zero and you can adjust them after the first few calculations according to the results from the report.
The program uses the set tolerances and instrument errors for the batch processing of the field book by the command Measured data->Field book processing.
The program is shipped with a pre-defined theodolite with the name "Unknown theodolite". In its definition the implicit tolerances for testing the suspicious and faulty measurements are set.
The theodolite setting is described in detail in the Reference manual.