3-94
Horizontal Alignment
If the fit is unsatisfactory (less than 85%) a warning message will be displayed to
inform you that the data is “Unfit”. At this point you should either repeat the data
acquisition or try to manually condition or edit the data using the edit data func-
tion. This built-in check helps alert you to the data losing reliability in the misalign-
ment calculations. Refer to the Display Sine Fit section on page 3-168 for more
information.
Note
Remember, when shaft movement due to causes other than misalign-
ment is present in the data this will appear as randomness (noise) in
the data. This is not normally a problem when the misalignment is
great, but will increasingly interfere as the misalignment decreases.
Therefore, the better the alignment the more likely the chance will
be of getting an unfit data warning.
If you do encounter a machine where this becomes a problem too great to over-
come (for example an unfit sine curve or the presence of too much background
vibration), consider switching to an alternative method such as Manual Sweep or
Auto 4 Point. Refer to the Sweep Mode Curve Data section on page 3-126 and Data
Quality section on page 3-127 for more information.
Manual Sweep
If Manual Sweep has been defined as the laser alignment method for the job, the
laser head’s built-in inclinometers are used while the shaft is rotated, but data is
manually acquired and stored in the Laser Align program instead of in the laser
heads.
Manual Sweep functions similar to Auto Sweep except the laser heads, or shafts, are
stopped at each position data is to be manually taken. Data (or samples as the Laser
Align program refers to them) from up to 180 positions may be recorded. The arc
of rotation can vary from as little as 45° to a full 360° (one revolution). The Manual
Sweep mode is especially useful for performing uncoupled or non-rotational align-
ments or when too much background vibration is present. This is the recom-
mended sweep method for sweeps that are less than 75°.
Содержание 2130 RBM Consultant Pro
Страница 1: ...Reference Manual 2130 RBM Consultant Pro Laser Alignment Analyzer and Fixtures Part 97191 Rev 1 ...
Страница 6: ...vi ...
Страница 20: ...1 8 Fixtures Case Layout top section ...
Страница 22: ...2 2 Setting Up and Using Laser Alignment Fixtures Laser heads front view Laser heads rear view ...
Страница 90: ...3 10 Horizontal Alignment ...
Страница 364: ...5 22 Straightness Measurements ...