Options and Accessories
Install and Maintain a Purge Kit
Purging the spectrometer with dry air or nitrogen protects the internal components from moisture and
other environmental contaminants. Installing the purge kit requires you to assemble the valves and
regulators, replace the desiccant cartridge, connect the purge gas, and set the pressure and flow
rate.
WARNING
Avoid explosion hazard
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 purge gas. Use only dried air or nitrogen to purge your instrument.
NOTICE
We recommend maintaining the seal and desiccating and/or purging the instrument at all times.
The warranty does not cover damage caused by a failure to properly desiccate or purge the
instrument. If you have questions about this requirement, please contact us.
SETUP NEEDED
Before installing the purge kit, you will need a source of dry air or nitrogen that meets Thermo
Scientific specifications for the Nicolet™ Summit Spectrometer. See the instrument’s Site and Safety
guide for details.
Note For best results, dry the purge gas to a dew point of -70 °C (-94 °F) or below.
MATERIALS NEEDED
In addition to the purge kit, you will need the following tools and materials:
l
3/4-inch open-ended wrench
l
11/16-inch open-ended wrench
l
#2 Phillips head screwdriver
l
3/32-inch hex key
l
7/64-inch hex key
l
Thread seal tape (“plumber’s tape” or “Teflon tape”)
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Nicolet Summit OA Spectrometer User Guide
Thermo Scientific
