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Verification of the vertical accuracy
1) Position the instrument about 5 m from a wall.
2) Fasten a plumb bob of minimum 2 m to the wall.
3) Activate one vertical line.
4) Align the vertical line to the plumb bob line.
5) Measure the difference. The distance should not exceed half of the
specificed accuracy.
6) If applicable, repeat the test for the second vertical line.
Verification of the accuracy of the 90° vertical lines
1) Place the instrument in a corner of a room with the side lenghts of
about 3.2 m and 4.2 m. Activate all vertical lines.
2) Measure exactly 4 m from the plumb point of the instrument in
direction of the vertical laser line and mark this point A on the floor.
3) Measure exactly 3 m from the plumb point of the instruments in
direction of the second vertical laser line and mark this point B on the
floor.
4) Measure the distance C between A and B. It should be 5 m. The
expected accuracy is 0.8 mm.
Accuracy check
minimum 3 m