Chapter 3 Product Specifications
43
1.1.6. Welch Allyn CO
2
Specifications
CO2 measurement range 0 to 99mmHg
Precision*
0 to 40 mmHg:
41 to 76 mmHg:
77 to 99 mmHg:
±2mmHg
±5%
±10%
Resolution 1mmHg
Refreshing rate 1s
Start-up time
< 80s (ambient temperature: 25 ; preheating power of ℃
transducer: 5W)
Response time 100ms (10% to 90 %)
Calibration Daily calibration is unnecessary
Calibration stability
There is a difference (< 1%) from the precison criteria after a
12-month continuous service time
Alarm range 0 to 99 mmHg
AwRR measurement range 0 to 150 BrPM
AwRR alarm range 0 to 150 BrPM
Apnea alarm delay AwRR: 10 to 40 s
* Precision specification is based upon the following standard airway conditions: sensor 42 ; ℃
airway adapter temperature 33 ; water vapor pressure 38 mmHg; standard gas mixture equals ℃
CO2 in balance air; fully hydrated at 33 ; atmospheric pressure 760 mmHg; airway flow rate ℃
60 cc/min.
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