Install And Maintain A Purge Kit; Setup Needed; Materials Needed - Thermo Scientific Nicolet Summit User Manual

Install and Maintain a Purge Kit

Thermo Scientific
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 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

Your purge kit includes the following:
• Dual zone purge manifold
• Purge desiccant assembly, with purge desiccant cartridge and O-ring
In addition to the purge kit, you will need the following tools and materials:
• 3/4-inch open-ended wrench
• 11/16-inch open-ended wrench
• #2 Phillips head screwdriver
• Thread seal tape ("plumber's tape" or "Teflon tape")
Nicolet Summit User Guide 38