Magnetic
fields
Humidity
Intense magnetic fields, such
as
those produced by superconducting
magnets, can affect spectrometer performance. The spectrometer
should be at least 5.5 meters (18 feet) away from these fields.
Minimize or eliminate exposure to magnetic fields wherever possible.
Internal windows for mid-IR Avatar systems have a special coating
that protects them from humiclity.rdamage. However, you should be
aware that the infrared detector windows are hygroscopic and
become irreversibly opaqqe when exposed to moisture. Also, the
beamsplitter (inside the in~~rferometer) and other components inside
the mid-IR spectrometer models may corrode with exposure to
moisture.
Avatar spectrometers are seal~d
aIJ-d
desiccated. This provides a
moderate level
of
protection against environmental humidity.
However, in environments with high humidity, we recommend that
you:
•
•
•
Purge the system with dry air or nitrogen. (We provide
instructions for optional purge later in this manual.)
Maintain the humidity in the range of 20% to 80%
noncondensing.
A void rapid changes in temperature that may cause
condensation.
A Caution Whenever the spectrometer, a detector, or accessory has been stored
or shipped, immediate exposure to room air can cause condensation
damage. Allow 24 hours
for
the package
to
slowly warm
to
room
temperature before opening it.
If
you are moving the system between sampling sites, protect the
instrument from extreme changes in temperature and humidity by
resealing it in the protective packaging that the instrument was
-
originally shipped in. Extreme changes in temperature and humidity
~
may cause moisture condensation, which can permanently damage
the optical components. •
12
Nicolet
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Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
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