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Safety
This section gives instructions to promote safe and proper handling of the
Model 3321 Aerodynamic Particle Sizer
®
Spectrometer.
There are no user serviceable parts inside the instrument. Refer all repair
and maintenance to a qualified technician. All maintenance and repair
information in this manual is included for use by a qualified technician.
The Model 3321 Aerodynamic Particle Sizer
®
spectrometer is a Class I
laser-based instrument. During normal operation, you will not be exposed
to laser radiation. However, you must take certain precautions or you may
expose yourself to hazardous radiation in the form of intense, focused,
visible light. Exposure to this light may cause blindness.
Take these precautions:
Do not remove any parts from the APS™ spectrometer unless you are
specifically told to do so in this manual.
Do not remove the APS™ housing or covers while power is supplied to
the instrument.
W A R N I N G
The use of controls, adjustments, or procedures other than those
specified in this manual may result in exposure to hazardous optical
radiation.
W A R N I N G
High voltage is accessible in several locations within this instrument.
Make sure you unplug the power source before removing the cover or
performing maintenance procedures.
Labels
The Model 3321 has eight labels as shown in Figure 1.
1. Laser Safety Information Label (back panel)
2. Serial Number Label (back panel)
3. Customer Service Label (back panel)
4. Danger High Voltage Label (Power Entry Module)
5. Danger High Voltage Label (Display Inverter)
6. Danger Laser Radiation (Optics Assembly)
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