Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual page 80

Calibration
System Calibration Procedure Using IMACC Collect
4-16 Omni FTIR Multi Gas CEMS Instruction Manual
To save any changes to the loaded "ftir_calibrate.collect" file, press save.
The calibration procedure can be repeated to verify that the span factor has
been corrected (without saving changes again). The reading should equal
the value of the calibration gas (spike value).
When you return to ImaccMonitor, the reading should equal the value of
the calibration gas.
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