PerkinElmer Raman Micro 200 Series, Getting Started Manual

Page: 23 / 114

Safety Practices . 23
Fiber Optic Probe Safety
NOTE: This section is only applicable to RamanMicro 200F systems equipped with a fiber
optic probe.
The fiber optic probe body incorporates a number of important safety features, including:
• Beam attenuator/cover;
•
Emission indicator/LED.
When attached to the spectrometer, the fiber optic probe provides a focused beam of
Class 3B laser radiation. During normal operation, laser radiation is accessible from the end
of the fiber optic probe. The LED emission indicator (Figure 3) at the probe head is
configured so that the LED lights up when the laser is turned on, indicating that laser
radiation is emitting from the probe aperture. The LED emission indicator is visible through
laser safety goggles. The output energy should be enclosed whenever possible (using a
beam attenuator or cover) to avoid unnecessary exposure. The laser should be turned off
and the fiber optic probe attenuator cap replaced when the system is not in use. AVOID
DIRECT EXPOSURE TO THE BEAM.
Figure 3 Schematic of the fiber optic probe (not to scale)
When using the fiber optic probe, the following precautions should be observed:
•
Never look directly into the laser beam or at the laser light scattered from a reflective
surface;
• Avoid direct exposure to the laser light;
• Use an interlock switch on the door to the laboratory and/or the reaction vessel;
• Place warning signs near the laser operating areas;
•
Controlled access areas, limited to individuals trained in the safe operation of lasers, are
suggested for laser operations;