Thermo Scientific iS5N Series User Manual page 58

4
Troubleshooting
Hardware Problems
54 Nicolet iS5N Spectrometer User Guide
– For the iD1H accessory, use the polystyrene reference cuvette shipped with that
accessory.
2. If SS fails again, take the following action depending upon which portion of the test
failed:
• If a throughput test failed:
– Make sure the C screen from the iS5N accessory kit is installed in the slot
furthest to the right inside the accessory sample compartment.
– Remove any sample from the beam path (leave the C screen installed), choose
Collect > Experiment Setup > Diagnostic > Align, wait for spectrometer
alignment to complete and rerun SS.
– If a throughput test fails again, make sure no sample is in the beam path and
choose View > Configure System Status > System Suitability > Configure >
Collect to collect a new SS reference spectrum. When the collection is
completed, choose OK and rerun SS.
– If a throughput test fails again, contact Technical Support.
• If a contamination test failed:
– Remove any sampling accessory from the instrument and visually examine the
sample compartment windows on the spectrometer for damage or
contamination. (Contamination from fingerprints or other sources can result in
undetermined peaks in the spectra.) If the windows are obviously dirty or
damaged, replace them (see
rerun SS.
– If the windows look okay but a contamination test fails again, you can remove
the windows and rerun SS (see
more information). If all contamination tests pass, replace the sample
compartment windows (reinstall the old windows to protect the instrument until
the new windows arrive).
– If a contamination test fails after you have replaced the sample compartment
windows, contact Technical Support.
• If a noise level test failed:
– If the instrument is purged with dry air or nitrogen, make sure the purge is set to
the recommended flow rate. See
flow rate was set incorrectly, reset it, wait 5 minutes for the flow rate to stabilize
and rerun SS.
– If a noise level test fails again and there are exhaust fans nearby or other
equipment that is causing the table on which the instrument is sitting to vibrate,
move the instrument to a more stable location and rerun SS.
– If a noise level test fails again, choose Collect > Experiment Setup > Diagnostic
> Align, wait for spectrometer alignment to complete and rerun SS.
Replacing Sample Compartment
Replacing Sample Compartment Windows
Setting Purge Gas Controls
Windows) and
for
for details. If the
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