Installing Or Replacing Hardware; Installing A Purge Kit - Thermo Scientific Nicolet Series User Manual

Installing or Replacing Hardware

Installing a Purge Kit

Thermo Scientific
Purging your instrument protects the internal components from moisture and other
environmental contaminants by maintaining an internal atmosphere of dry air or nitrogen. If
your instrument is not already equipped to purge, you must install a purge kit. To install a
purge kit, use the following procedure.
NOTICE We recommend that you maintain seal and desiccation and/or purge your
instrument at all times. Equipment damage due to failure to maintain seal and desiccation
and/or purge is not covered under the warranty. If you have questions about this
requirement, please contact us.
Time needed:
30 minutes or less
Tools needed:
• A 3/4 inch open-ended wrench
• An 11/16 inch open-ended wrench
• A shutoff valve (with a 1/4 inch male or 3/8 inch female fitting)
• Pipe tape
Note
• To order parts, contact us.
• For best results the purge gas should be dried to a dew point of -70 °C (-94 °F) or
below.
WARNING Never use a flammable gas to purge your instrument. The purge gas must be
free of moisture, oil, carbon dioxide and other reactive or infrared-absorbing materials. To
prevent laser damage, use only dried air or nitrogen to purge your instrument.
1. Install a shutoff valve and either a 1/4 inch male fitting or a 3/8 inch female fitting on the
purge gas source. (Choose a shutoff valve and fittings that are appropriate for the purge
gas source.)
Installing or Replacing Hardware
Installing a Purge Kit
Nicolet iS20 User Guide 11