Thermo Scientific iS5N Series User Manual page 34

3
Maintenance
Maintaining Your Instrument
30 Nicolet iS5N Spectrometer User Guide
WARNING Avoid explosion hazard. Before you open 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.
• Replace the desiccant only with replacement parts supplied by us.
 To replace the desiccant
1. Turn off the instrument (see
2. Turn off the purge, if applicable, and disconnect the purge line to the instrument and any
installed accessory.
3. Remove any installed accessory and all samples from the instrument (see
Accessory).
Note You can use either desiccant cartridge (with or without the purge connector) to
maintain the required humidity when the instrument is powered off. The illustrations
below show the nonpurged version of the desiccant cartridge. To see the purged
version, see Installing a Purge
canisters are the same for both types of desiccant cartridges.
4. Use the #2 Phillips head screw driver to loosen the two captive screws from the desiccant
cartridge, and lift the cartridge straight up and out of the instrument.
Turning the Power On and
Kit. The instructions for replacing the desiccant
Off) and unplug the power cord.
Removing an
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