Leica TPS700 Series Field Manual - Surveying Equipment

ATR collimation150(Available for TC and TCRautoversions only)The ATR collimation error is thecombined horizontal and verticalangular divergence of the line ofsight from the axis of the CCDcamera. The collimationprocedure includes, optionally, thedetermination of the line-of-sighterror and the vertical-index error.The correction for the ATRcollimation errors is alwaysapplied regardless of the "ON/OFF" status of the Hz-correctionsetting.(see section "Anglesettings").To define the ATR collimationerror, a prism must be accuratelytargeted at a distance of about100 m. The target must lie within±9° (±10 gon) of the horizontalplane. The procedure isanalogous to that of determiningthe V-index error.V-componentHz-componentCentreof prismAim the reticle exactly at themiddle of the prism.Starts the calibration.The two-axis compensator isturned off automatically whendetermining the ATR collimationerror.Crosshair1100Z30