Purging The Instrument; Working With Internal Components - Thermo Scientific Nicolet Summit User Manual

Purging the Instrument

Working with Internal Components

Thermo Scientific
In especially humid environments, we recommend installing a source of clean, dry air or
nitrogen to purge the spectrometer. Purging the instrument can help protect internal optical
components from damage caused by a moist environment or corrosive solvents, and it can
ensure more accurate results.
See "Install and Maintain a Purge
your spectrometer.
DANGER Avoid fire and explosion hazard.
• Use only dried air or nitrogen to purge your spectrometer.
• Never use a flammable, combustible, or toxic gas to purge this instrument. The purge
gas must be free of oil and other reactive materials. Heat from the source or from laser
absorption may ignite flammable gases or reactive materials in the purge gas.
Typically, there should be no reason for you to remove the instrument cover or attempt to
replace internal components. However, if you need to remove the cover for maintenance, be
aware that you risk being shocked, burned, and exposed to laser light.
CAUTION Avoid shock hazard.
Even after this instrument has been disconnected from all voltage sources, capacitors may
remain charged for up to 30 seconds and can cause an electrical shock.
CAUTION Avoid burn hazard.
Internal components, especially the infrared source, can become extremely hot during
normal operation. Turn off the instrument and wait at least 10 minutes before replacing
any components.
WARNING Avoid personal injury.
• Never stare into the laser beam or at its reflection. Never tamper with the laser. You
could be exposed to laser light or high voltage.
• If you adjust the laser or perform procedures that are not described in the user guides
and manuals, you could be exposed to hazardous radiation.
Personal Safety with the Summit Spectrometer
Kit" for details on purchasing and installing a purge kit for
Nicolet Summit User Guide 10