Appendix A
| Specifications and Performance Characteristics
©2007-2015 Physio-Control, Inc.
LIFEPAK 15 Monitor/Defibrillator Operating Instructions
229
CO
2
CO
2
Range
0 to 99 mmHg (0 to 13.2 kPa)
Units: mmHg, %, or kPa
CO
2
Accuracy*
CO
2
partial pressure
at sea level:
Accuracy:
(0–80 bpm)** 0 to 38 mmHg
(0 to 5.1 kPa)
±2 mmHg
(0.27 kPa)
39 to 99 mmHg
(5.2 to 13.2 kPa)
±5% of r 0.08% for every 1 mmHg
(0.13 kPa) above 38 mmHg (5.1 kPa)
(>80 bpm)
0 to 18 mmHg
(0 to 2.4 kPa)
±2 mmHg
(0.27 kPa)
19 to 99 mmHg
(2.55 to 13.3 kPa)
±4 mmHg (0.54 kPa) or ±12% of reading,
whichever is higher
*Determined by the methods in
ISO 21647 clauses 51.101.1 and 51.101.2.
**For RR > 60 bpm, to achieve specified CO
2
accuracy, the
Microstream
®
FilterLine
®
H Set for infant must be used.
The accuracy specifications listed above are maintained within an
additional 4% in the presence of interfering gases defined in
ISO 80601-2-55.
Respiration Rate
Accuracy
0 to 70 bpm: ±1 bpm
71 to 99 bpm: ±2 bpm
Respiration Rate Range 0 to 99 breaths/minute
Flow Rate
50 ml/min -7.5, +15 ml/min (flow measured by volume)
Rise Time
190 msec
Response Time
3.3 seconds with 200 cm FilterLine tubing
5.5 seconds with 400 cm FilterLine tubing
(includes delay time and rise time)
Initialization Time
30 seconds (typical), 10-180 seconds
Ambient Pressure
Automatically compensated internally
Optional Display
Waveform
CO
2
pressure
Scale Factors
Autoscale, 0–20 mmHg (0–4 Vol%),0–50 mmHg (0–7 Vol%),
0–100 mmHg (0–14 Vol%)
Waveform Sample Rate 20/sec or one sample every 50 msec
CO
2
Calculation
Per 80601-2-55, Method for End-tidal CO
2
calculation:
EtCO
2
is a maximum rather than average value.
The accuracy of the CO
2
readings and respiration rates was tested
with a CO
2
square wave simulator.
Measurement Drift
The periodic autozero function compensates for drifts between
components, and changes in ambient temperature and barometric
conditions. This automatic process eliminates variances that might
otherwise cause measurement drift. Therefore, the CO
2
function does
not exhibit drift.
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