Mindray BeneVision N22 - Page 402

A - 24 BeneVision N22/N19 Patient Monitor Operator’s Manual
Sidestream CO
2
Module
Standard Meet the standard of ISO 80601-2-55
CO
2
Measurement range 0 to 99mmHg (0 to 13.2% under standard atmospheric pressure)
CO
2
accuracy* CO
2
concentration<1 % ±0.1%
1%≤CO
2
concentration<5%: ±0.2%
5%≤CO
2
concentration<7%: ±0.3%
7%≤CO
2
concentration<12%: ±0.4%
12%≤CO
2
concentration<13%: ±0.5%
CO
2
concentration≥13% unspecified
CO
2
resolution 0.1 %
O
2
measurement range 0 to 100%
O
2
accuracy Paramagnetic oxygen sensor
0≤O
2
concentration≤25%: ±1%
25<O
2
concentration≤80%: ±2%
80<O
2
concentration≤100%: ±3%
Galvanic oxygen sensor
0≤O
2
concentrationt≤40%: ±1%
40<O
2
concentration≤60%: ±2%
60<O
2
concentration≤80%: ±3%
80<O
2
concentration≤100%: ±4%
O
2
resolution 0.1%
Accuracy drift Meet the requirement for measurement accuracy within 6 hours
Sample flowrate Adult, pediatric: 120 ml/min
Neonate: 90 ml/min
Sample flowrate tolerance ±15% or ±15 ml/min, whichever is greater.
Start-up time <90 s
Response time Measured with a neonatal watertrap and a 2.5-meter neonatal sampling line:
<4.5 s @ 90 ml/min
Measured with an adult watertrap and a 2.5-meter adult sampling line:
<5.5 s @ 120 ml/min
Rise time Measured with a neonatal watertrap and a 2.5-meter neonatal sampling line:
<330ms@90ml/min.
Measured with an adult watertrap and a 2.5-meter adult sampling line:
<300ms@120ml/min
awRR measurement range 0 to 120 rpm
awRR measurement precision <60 bpm: ±1
60 to 120 bpm: ±2
Data sample rate 50 Hz
Effect of interference gases on CO
2
measurements
Gas Concentration (%) Quantitive effect*