Mindray VS-900, Operator'S Manual

Page: 158 / 192

A-12
CO
2
resolution 1 mmHg
Sample flow rate 50 ml/min
Sample flow rate
tolerance
15% or 15 ml/min, whichever is greater.
Start-up time < 90 s
Response time 5 s @ 50ml/min
Rise time < 200 ms @ 50ml/min
awRR measurement range 0 to 150 rpm
awRR measurement
precision
<60 bpm: ±1
60 to 150 bpm: ±2
awRR resolution 1 rpm
Effect of interference gases on CO2 measurement
Gas Concentration (%)
Quantitative
effect*
N
2
O ≤ 60
±1 mmHg
Hal ≤ 4
Sev ≤ 5
Iso ≤ 5
Enf ≤ 5
Des ≤ 15 ±2 mmHg
*: means an extra error should be added in case of gas interference when CO2 measurements
are performed between 0 to 40mmHg. Inaccuracy specifications are affected by the breath
rate and I:E change. The end-tidal gas reading is within specification for breath rate below
15BPM and I:E ratio smaller than 1:1 relative to the gas readings without breath.
Alarm limit Range Step
EtCO
2
High (low limit + 2) to 99 mmHg
1 mmHg EtCO
2
Low 1 to (high limit - 2) mmHg
FiCO
2
High 1 to 99 mmHg
awRR High
Adult, pediatric:
Neonate:
(low limit + 2) to 100 rpm
(low limit + 2) to 150 rpm
1 rpm
awRR Low 0 to (high limit - 2) rpm