Replace The Desiccant; Tools Needed; To Replace The Desiccant - Thermo Scientific Nicolet Summit User Manual

Replace the Desiccant

Thermo Scientific
If your instrument is not equipped with a purge kit, or if the purge is turned off, you must
monitor the humidity level inside the spectrometer. Replace the desiccant when the paper
humidity indicator turns pink (can be light pink or almost white). Replace the paper
humidity indicator each time you replace the desiccant.
Replacing the desiccant requires you to remove the desiccant cartridge and replace the
desiccant canisters and the O-ring.

Tools Needed

Before you begin, you will need the following:
• Desiccant replacement kit
• A 0.05-inch hex key
• A #2 Phillips head screwdriver
• Gloves, finger cots, or laboratory tissue (to handle the humidity indicator)
WARNING Before opening the desiccant compartment, turn off the instrument power,
unplug the power cord and remove all accessories and samples from the system. Entry of
flammable liquids or gases into the desiccant compartment is an explosion hazard. If such
entry occurs, contact us immediately and do not apply power to the instrument until the
condition has been corrected.
NOTICE Make sure nothing falls into the instrument while the desiccant cover is
removed.
WARNING Replace the desiccant only with replacement parts supplied by us.


To replace the desiccant

1. Turn off the spectrometer.
a. To turn off the spectrometer, press the power button.
b. Unplug the power cord.
Nicolet Summit User Guide 54