6. Walk to the target and mark
the height of the beam, record
as "A".
7. Return to the unit and rotate it
180 degrees without disturbing
its platform.
8. Repeat Step #4.
9. Repeat Step #5.
10. Walk to the target and mark
the height of the beam.
Record as "B".
11. Return to the unit and rotate it
90 degrees on its platform.
12. Repeat Step #4.
13. Repeat Step #5.
14. Walk to the target and mark
the height of the beam.
Record as "C".
15. Return to the unit and rotate it
180 degrees on its platform.
16. Repeat Step #4.
17. Repeat Step #5.
18. Walk to the target and mark
the height of the beam.
Record as "D".
Calibration error calculation =
Vial #1 = (Distance between "A"
and "B")/2
-10-