40 Specifications
486
Microstream CO
2
Humidity Correction Factor
Either BTPS or ATPD can be selected as the humidity correction factor for the Microstream CO
2
readings. The formula for the correction calculation is:
Rise Time 190 ms for neonatal mode
(measured with FilterLine H for neonatal)
240 ms for adult mode
(measured with FilterLine H for adult)
Sample Flow Rate 50 + 15/-7.5 ml/minute
Gas Sampling Delay
Time
Maximum:
3 seconds (2m sample lines)
6 seconds (4m sample lines)
Sound Pressure Acoustic noise: <45 dBA
Total System Response
Time
The total system response time is the sum of the delay time and the rise time.
M3015A Microstream CO
2
Performance Specifications
where:
P
BTPS
= partial pressure at body temperature and pressure, saturated
P
ATPD
= partial pressure at ambient temperature and pressure, dry
M3014A Mainstream CO
2
Performance Specifications
CO2 Range 0 to 150 mmHg (0 to 20.0 kPa)
Accuracy after 2 minutes warmup:
For values between 0 and 40 mmHg: ±2.0 mmHg (±0.29 kPa)
For values from 41 to 70 mmHg: ±5% of reading
For values from 71 to 100 mmHg: ±8% of reading
The specifications are valid for standard gas mixtures, balance air, fully hydrated
at 35°C, P
abs
= 760 mmHg, flow rate = 2 l/min.
Resolution Numeric: 1.0 mmHg (0.1 kPa)
Wave: 0.1 mmHg (0.01 kPa)
Stability:
Short term drift ±0.8 mmHg over four hours
Long term drift Accuracy specification will be maintained over a 120 hour period
awRR Range 2 to 150 rpm
Accuracy ±1 rpm
Warm-up Time 2minutes with CO
2
transducer attached for full accuracy specification
Response Time Less than 60 ms (with adult or infant reusable or disposable adapter)
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