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I Laser Rangefinders
5. When the display shows the message Rotate unit for calibration,pull
and hold the trigger.
6. Slowly rotate through 360° twice, taking 1–2 minutes per
revolution. While turning, slowly pitch and roll the unit up and
down and side to side.
As the Contour XLR is rotated, the data point count on the
display increases. When the count reaches 275, calibration is
complete.
7. Release the trigger.
The Contour XLR returns to the previous operating mode.
I.7.5 Using the Contour XLR with the Asset Surveyor Software
As mentioned previously, the practical accuracy of the fluxgate
compass in typical field use is around ±0.5°. This yields a steady
reduction in accuracy as the distance between the laser and a target
point increases. At a distance of 100–200 m, the average positional
error when using the Contour XLR is approximately 1 m (in addition
to the error of your GPS measurement).
394 TSC1 Asset Surveyor Operation Manual