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Leica TPS400 Series User Manual

Leica TPS400 Series User Manual

Leica TPS400 Series User Manual

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Line-of-sight error (Hz-collimation)V-Index (Vertical index error)The line-of-sight error or collimation error (C) is thedeviation from the perpendicular between the tiltingaxis and the line of sight.The effect of the line-of-sight error to the Hz-angleincreases with the vertical angle.For horizontal aimings the error of Hz equals theline-of-sight error.The vertical circle should read exactly 90° (100 gon)when the line of sight is horizontal. Any deviationfrom this figure is termed vertical index error (i).By determining the vertical index error the electroniclevel is adjusted automatically.Procedures and conditions required tocorrectline-of-sight and height index errors are thesame. Thus the procedure will only be describedonce.<strong>TPS400</strong>-5.0.1en108 Calibrations

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