Philips 862478 - Manual (Page 181)

Measuring and Displaying Parameters
Specifications 12-9
CO
2
Complies with EN 864/ISO 9918
Parameter Specification
Range 0 to 98 mmHg (0 to 13 kPa), or 13%
CO
2
whichever is lower.
Flow Rate 50 ±7.5 ml/min
Warm-up Time 180 seconds max.; typically 30 seconds
Gas Sampling Delay Time 2.7 seconds
Resolution
Numeric 1.0 mmHg (0.1 kPa)
Wave 0.1 mmHg (0.01 kPa)
Rise Time 190 ms for adult mode (measured with
sample line for humidified ventilation
and airway adapter for adult)
Calibration Interval 4,000 operating hours
Auto Zero Interval < 2% duty cycle. Increases if the
temperature change by 8
o C from the
previous Auto-Zero interval, or the
pressure changes by 45 mmHg.
Leak Tightness < 40 mbar/min with 30% vacuum
Accuracy a
a. Accuracy applies for respiration rate up to 80 b/min. For respiration rate above 80 b/min, the
accuracy complies with EN 864/ISO 9918 (4 mmHg or ±12% of indicated value, whichever
is greater) for End-tidal CO
2
values exceeding 19 mmHg. The above accuracy is maintained
to within 4% for the following gas mixtures: CO
2
: 0 - 13%; N
2
: 0 - 97.5%; O
2
: 0 - 100%;
N
2
O: 0 - 80%; H
2
O: Dry to saturated.
0 - 20 minutes 0 to 38 mmHg ±4 mmHg; 38 to 99
mmHg ±12% of indicated value
> 20 minutes 0 to 38 mmHg ±2 mmHg
38 to 99 mmHg ±5% of indicated value
+ 0.08% for every 1.0 mmHg above 40
mmHg.