Will other gases affect the measurement performance of
the Vaisala SPECTRACAP®oxygen sensor?
There are no other gases that absorb light at precisely the same wavelength
in which the measurement is made in the SPECTRACAP® oxygen sensor,
therefore there is no direct cross sensitivity to any other gases. Through a
secondary effect known as pressure broadening large amounts of some gases alter
the shape of the oxygen absorption lines in such
a way that the oxygen concentration reading may be effected.