Emerson 2130 RBM Consultant Pro, Reference Manual

Page: 38 / 394

2-18 Setting Up and Using Laser Alignment Fixtures
Introduction to Laser Alignment Fixtures Setup
This section takes you through a step-by-step setup of the 8215/8225 Laser Align-
ment Fixtures. Before before beginning the actual machine alignment, be sure all
pre-alignment checks have been completed.
Warning!
Prior to mounting the laser alignment fixtures on machine shafts, all
switches operating the machines should be locked out. Follow safety
precautions for your facility. Normally, only personnel performing
the alignment should be able to unlock any startup switch. After an
alignment has been completed, the work area should be inspected to
ensure that all equipment is clear of rotating shafts/couplings prior
to removal of the lockout protection.
Warning!
The 8215/8225 Laser Alignment Fixtures use a Class II (CDRH) laser
or Class 2 (IEC) laser. This laser complies with 21 CFR 1040.10 and
1040.11 safety requirements with a power output < 1.0 mW (average)
and a pulse repetition of 600 pulses/sec. The pulse duration is <110
microseconds. However, do not expose the human eye directly to the
laser beam! Warnings are located on each sensor head.
Water vapor or dust can interfere with a target “seeing” its laser. The air between the
sensor heads should be visually clear. Ensure that the air between the sensor heads
is not being heated from steam leaks, uninsulated piping, etc. Heated air rising
within the span between the sensor heads can refract the laser beams and cause
errors in the alignment readings.
Operate the laser fixtures at ambient temperatures. If the fixtures have been stored
at a different temperature than ambient, allow the laser fixtures to acclimate to
ambient. Ensure that any heat source that may be present is not creating a large
temperature difference between the laser fixtures and the ambient temperature.
Sunlight itself will not cause a laser reading problem.