JEOL JSM-IT200 Instructions Manual page 21

Precautions for use
• The X-ray window of the EDS detector is ultra-thin; do not touch the window or allow objects come into
contact with it.
The window is so thin that it may break on contact. Window breakage will prevent operation and require
that the instrument be sent in for repair.
• Do not expose the EDS detector and attachments to vibration.
Exposing the EDS detector, associated devices or cables to strong impact or vibration, such as a
mechanical shock, may result in contact failure, physical damage or malfunction.
• Prevent light from entering the EDS detector during analysis.
Light (including infrared light and other types of invisible light) that enters the EDS detector is
recognized as a strong signal in addition to the X-rays that are intended to be the sole target of detector
operation. As a result, resolution is reduced and the results may become unusable.
• Do not use specimen that generate dust or minute particles.
When you observe or analyze a specimen that includes powdery materials, take precautions so that the
powdery materials do not scatter as dust in the specimen chamber. If a rapid pressure change occurs
in the specimen chamber during venting or evacuating, it may cause dust in the chamber to be
scattered and collide with the EDS detector window. This might damage the EDS detector window.
• Do not use specimen that generate corrosive gas.
If the EDS detector window is exposed to strong corrosive gases such as chlorine, fluorine, hydrogen
sulfide or ammonia, the ultra-thin window may suffer physical damage that could cause a vacuum leak
in the EDS detector.