Product Specifications
A-17
A.5.8 CO
2
Measurement mode Sidestream, microstream, mainstream
Technique Infrared absorption
Sidestream CO
2
Module
Standard Meet standard of ISO9918, ISO 21647 and F1456
CO
2
Measurement range 0 to 99 mmHg
Accuracy*
0 to 40 mmHg:
41 to 76 mmHg:
77 to 99 mmHg:
±2 mmHg
±5% of the reading
±10% of the reading
Resolution 1 mmHg
Response time <240ms (10% to 90%)
Gas sampling delay time
<2s (measured with a 7-feet sample line having an inner
diameter of 0.055 inch, and a sample flow rate of 150ml/min)
awRR measurement range 0 to 120 rpm
awRR measurement precision
0 to 70 rpm:
70 to 99 rpm:
±2 rpm
±5 rpm
Apnea time 10s, 15s, 20s, 25s, 30s, 35s, 40s
* Accuracy applies for the following conditions:
1. Measurements begin after the CO
2
module warms up;
2. Ambient pressure is from 750 to 760 mmHg, and ambient temperature from 22 to 28ºC;
3. The measured gas is a dry gas and the balance gas N
2
;
4. Gas sample flow rate is 150ml/min, respiration rate is 30 rpm with a fluctuation between
±3 rpm, and I:E is 1:2.
For other conditions, the accuracy complies with EN864 or ISO9918: ±4mmHg (0 to
40mmHg) or 12% of the reading (41 to 99mmHg).
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