Aligning Your Spectrometer; Verifying The Laser Frequency - Thermo Scientific Nicolet Series User Manual

Aligning Your Spectrometer

Verifying the Laser Frequency

Thermo Scientific
NOTICE Flow rates greater than 10 scfh can cause vibration that can affect data
quality. We recommend keeping the flow rate at approximately 10 scfh.
3. Set the flowmeter to 10 scfh.
Your instrument can be aligned automatically using OMNIC software. Alignment optimizes
the energy throughput to the detector. Alignment can change slightly over time, particularly
in locations that have large temperature swings or excessive vibration.
Note The instrument is aligned automatically each time you run a Performance
Verification (PV) test. We recommend running a PV test at least once a month.
To align the spectrometer, use the Align button on the Diagnostic tab of the Experiment
Setup dialog box (available through the Collect menu in OMNIC software). For more
information, see OMNIC Help Topics in the Help menu.
Use the Laser Verification button on the Diagnostic tab in the Experiment Setup dialog box in
OMNIC software to verify the laser.
For optimum system performance, verify the laser frequency according to the following
schedule:
Spectrometer environment
Stable
Unstable (e.g., temperature or
humidity constantly changing)
Spectrometer state
Always powered on
Powered on and off
frequently
Operation
Aligning Your Spectrometer
Recommended Schedule
every 3 months
every day or once a week
Nicolet iS20 User Guide 7