AccuLine 40-6540 Manuel d'entretien - Page 7

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4.1. Horizontal Mode Operation

In this mode of operation, the instrument is self-leveling, where by a major factor of accuracy is how well the
leveling compensator is balanced. Different types of errors require different methods of calibration. These
errors are easily characterized by placing the instrument on a flat surface following the guidelines below, and
running the instrument with the rotating head continuously rotating 360°.

4.1.1. Quantifying Accuracy Error

Establish the set up shown in the following drawing.
Instrument for test (laser spinning 360° rotation)
（大于20米）
L (>20m)
1. Place the instrument for test on the test stand (preconfigured from the illustration above) with handle facing
the far target .
2. Power the laser and function in full rotation mode (head rotates 360°)
3. Note the errors in all four quadrants of the instrument as read on the far target (i.e. x axis A = 0° and B =
180°, y axis C = 90° and 270°)
You should end up with 4 numbers
A (0°) =
_____
B (180°) = ______
C (90°) = ______
D (270°) = ______
4. Since all of the errors are referenced against "0" on the far target, essentially the largest number from the
data collected (A – D) / the distance should be equal to or less than the published specification for the
product. If not, characterize the error and determine method of calibration as defined by section 4.1.2 of
this document.
Prepared By: Tim Wojo
（大于20米）
L (>20m)
检测台
Testing platform
Fig 4
Near Target placed within 0.3m (12") of
instrument. Note that "0" of the target
corresponds to the height of laser line at the
aperature of the instrument.
Revision - Date: 0 – 20080430
40-6540 Service Manual
Far Target placed on wall at least 10m (33ft) from Test
Stand, where "0" corresponds to them same height as
标靶
"0" on the target next to the aperature of the instrument.
Laser Line
激光扫描线
0
Reference Line (Known Height)
标靶
Accuracy (A) = Difference between laser line
height and reference line height, divided by the
distance that the laser is from the wall (L)
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