User Manual

4-23
Attaching the Fixtures
Positioning the Other Mounting Base
With the previous mounting base still in its level position, if necessary,
loosen and rotate the other mounting base until it is somewhat level with it.
Tighten this base and recheck the other base to ensure that both bases are
now level with each other.
Although this part of the procedure is not absolutely critical, placing the
mounting bases relatively level with each other allows the laser beam
adjustment to be more or less centered. This ensures that the laser beams
can line up with their targets easily.
Also, there may be times when the top position is not accessible. The objec-
tive of this step is to mount the sensor heads in the same rotational position.
This provides the maximum sensor range during data acquisition.