HAMAR LASER L-705, Руководство пользователя

Страница: 41 / 49

38
The readout always shows the
displacement between the Target Center
and the Laser Beam Center. When the
Target Center is not on the True Bore
Center, the numbers and the signs on the
readout will change when the target is
rotated because the Target Center is
moved to a different location in
relationship to the laser beam.
Figure 22 represents the target in the
NORMal position, with the cable down . If
each square represents .001 in., the Target
Center is .002 in. higher than the Laser
Beam Center (+.002 in.) and is .007 in. to
the right of the Laser Beam Center (+.007
in.).
Figure 22 – Target in the NORMal position
Figure 23 represents the target in the INverted
position, with the cable up . When the target is
rotated, the signs on the readout are also
rotated. Therefore, although the Target Center
appears to be to the right of and lower than the
Laser Beam Center in Figure 23, the vertical
readings will be positive and the horizontal
readings will be negative. When the vertical
TCE is calculated, (INverted
divided by 2) the Target Center is .004 in.
higher and .003 in. to the right of the True
Bore Center in the NORMal position.
The table below shows the calculation of the
vertical and horizontal TSCE values.
Figure 23 – Target in the INverted position
NORMal Vertical Reading +.002 in. NORMal Horizontal Reading +.007 in.
INverted Vertical Reading +.008 in. INverted Horizontal Reading -.001 in.
Total +.010 in. Total +.006 in.
Divide by 2 = Vertical TSCE +.005 in. Divide by 2 = Horizontal TSCE +.003 in.
If you place the Laser Beam Center exactly on the True Bore Center with the target in the NORMal
position, the readings will show Ve.005 in. and Hori.003 in.