147
Non-disturbing gases
of which effect on CO
2
(5 vol%) readings < 0.2
vol%:
− Ethanol C
2
H
5
OH (<0.3%)
− Acetone (<0.1% )
− Methane CH
4
(<0.2%)
− Nitrogen N
2
(0-100%)
− water vapor (0-100%)
− Trichloromonofluoromethane
(<1%)
− Dichlorotetrafluoroethane (<1%)
− Dichlorofluromethane (<1%)
Disturbing gas and its
effect
• Halotane (4%): increases CO
2
(5
vol%)
< 0.3 vol%
• Isoflurane (5%): increases CO
2
(5
vol%)
< 0.4 vol%
• Enflurane (5%): increases CO
2
(5
vol%)
< 0.4 vol%
• Desflurane (24%): increases CO
2
(5
vol%)
< 1.2 vol%
• Sevoflurane (6%): increases CO
2
(5
vol%)
< 0.4 vol%
•N
2
O (40%): increases CO
2
(5 vol%)
< 0.4 vol%
• Helium (50%): decreases CO
2
(5
vol%)
< 0.3 vol%
•If O
2
compensation is not
activated: O
2
(40-95%) decreases
< 0.3 vol%
•If O
2
compensation is activated: O
2
(40-95%) error < 0.15 vol%
•If N
2
O compensation is not
activated: N
2
O (40-80%) increases
< 0.8 vol%
•If N
2
O compensation is activated:
N
2
O (40-80%) error < 0.3 vol%
E-sCO, E-sCAiO, N-CAiO module