Measuring and Displaying Parameters

CO2

Complies with EN 864/ISO 9918

Parameter

Specification

Range

 

0 to 98 mmHg (0 to 13 kPa), or 13%

 

 

CO2 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 8oC from the

 

 

previous Auto-Zero interval, or the

 

 

pressure changes by 45 mmHg.

 

 

Leak Tightness

< 40 mbar/min with 30% vacuum

 

 

 

Accuracya

 

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.

 

 

 

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 CO2 values exceeding 19 mmHg. The above accuracy is maintained to within 4% for the following gas mixtures: CO2: 0 - 13%; N2: 0 - 97.5%; O2: 0 - 100%; N2O: 0 - 80%; H2O: Dry to saturated.

Specifications 12-9

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Philips 862474, 862478 manual Resolution, Accuracya
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862474, 862478 specifications

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