NOTE 1: Negligible interference, effect included in the specification “Accuracy, all conditions”
above.
NOTE 2: Interference at indicated gas level. For example, 50vol% helium typically decreases the
CO
2
readings by 6%. This means that if measuring on a mixture containing 5.0vol%
CO
2
and 50vol% helium, the measured CO
2
concentration will typically be
(1-0.06)*5.0vol%=4.7vol% CO
2
.
NOTE 3: According to the ISO 80601-2-55.