User Manual

Table Of Contents
ExpressionMR400InstructionsforUse SpecificationsA11
FractionalinspiredCO2(FiCO2)Measurement
Range
3to50mmHg(0.4to6.7kPa)
Method:LowestreadingoftheCO2waveformintheprevious20
seconds
CO2Accuracy
(Allmeasurementsatgastempof25°C)
±4mmHg0.5kPa)or±12percent,
whicheverisgreater,after
thespecifiedwarmupperiod
CO2Stabilit y
ShortTermDrift
LongTermDrift
Nottoexceed0.8mmHg(0.1kPa)overa4hourperiod
Accuracyspecificationmaintainedovera120hourperiod
RespirationAccuracy ±1breathor±3percent,whicheverisgreater
RespirationResolution 1breathperminute
RespirationRateRange
(Inwhichtherespirationaccuracyspecification
ismet)
4to100breathsperminute,inclusive
Note
A simulator was used to simulate breathing rates and calibrated gas was flowed through the simulator and into the
system, and effects on accuracy were recorded to determine the rated respiration rate range and the corresponding
effects of end-tidal gas reading accuracy as a function of respiratory rate.
Accessoryusage Functionalwithoutchangingaccessoriesforaminimumof6
hours
SystemResponseand RiseTimes
(Asmeasuredfromthepatientgasinputofthe
completepneumaticcircuit,includingtubing,
from1090percentofthemeasuredCO2lev
els)
AirwayAdapter Systemresponse:10.89seconds
Risetime:0.94seconds
CO2Cannula Systemresponse:
12.44seconds
Risetime:1.12seconds
DividedCannula Systemresponse:16.17seco nds
Risetime:2.01seconds
CO2 (Optional LoFlo)