BeneVision N1 Patient Monitor Operator’s Manual
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Microstream CO
2
Module
Mainstream CO
2
Module
Effect of interference gases on CO
2
measurements
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 CO
2
measurements are performed between 0 to
40mmHg.
Effect of interference gases on O
2
measurements
Gas
Concentration (%)
CO
2
0.2
N
2
O
0.2
HAL, DES, SEV, ISO, ENF
1.0
Standard
Meet the standard of ISO 80601-2-55 2011
CO
2
Measurement range
0 to 99 mmHg
Accuracy*
0 to 38 mmHg:
39 to 99 mmHg:
±2 mmHg
±5% of the reading (0.08% increased in
error for every 1 mmHg if the reading is
more than 38)
Accuracy drift
Meet the requirement for measurement accuracy within 6 hours
* Accuracy applies for respiration rate up to 80 rpm. For respiration rate above 80 rpm and EtCO
2
exceeding 18 mmHg, the
accuracy is 4 mmHg or ±12% of the reading, whichever is greater. For respiration rate above 60 rpm, the above accuracy
can be achieved by using the CapnoLine H Set for Infant/Neonatal. In the presence of interfering gases, the above accuracy
is maintained to within 4%.
Resolution
1 mmHg
Sample flow rate
ml/min
Initialization time
180 s (maximum)
Response time
≤2.9 s
(The response time is the sum of the rise time and the delay time when using
a FilterLine of standard length)
Rise time: <190ms@50ml/min
Delay time: ≤2.7 s
awRR measurement range
0 to 150 rpm
awRR measurement accuracy
0 to 70 rpm:
71 to 120 rpm:
121 to 150 rpm:
±1 rpm
±2 rpm
±3 rpm
awRR resolution
1 rpm
Standard
Meet the standard of ISO 80601-2-55 2011
50
7.5
–
+15
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