GE B20 User Manual page 149

Measurement accuracy
E-miniC module
E-sCO, E-sCAiO, N-CAiO
module
Resolution
CO
2
CO measurement range
2
E-miniC module
E-sCO, E-sCAiO, N-CAiO
module
CO measurement
2
accuracy
E-miniC module
E-sCO, E-sCAiO, N-CAiO
module
• 4 to 20 breaths/min: ±1 breaths/
min
20 to 80 breaths/min: ±5%
• 4 to 20 breaths/min: ±1 breaths/
min
20 to 100 breaths/min: ±5%
1 breaths/min
• 0 to 20 vol%
• 0 to 15 vol%
• 0 to 15 vol%:
± (0.2 vol% + 2% of reading)
• 15 to 20 vol%:
± (0.7 vol% + 2% of reading)
NOTE: Valid for respiration rate < 40
breaths/min at I:E ratio of 1:1. (Relative
error is typically 10% for respiration
rate 80 breaths/min at I:E ratio of 1:1.)
The accuracy is specified in simulated
ventilation. With higher respiration
rates and with varying ventilation
methods the specifications may not
be met.
• ± (0.2 vol% + 2% of reading)
CO display resolution
2
CO total system response
2
time
E-miniC module
E-sCO, E-sCAiO, N-CAiO
module
CO rise time
2
E-miniC module
E-sCO, E-sCAiO, N-CAiO
module
CO drift
2
O
2
O measurement range
2
O measurement accuracy ± (1 vol% + 2% of reading)
2
O display resolution
2
O total system response
2
time
O rise time
2
O drift
2
N O
2
145
0.1%, 0.1kpa or 1 mmHg
• < 2.4 seconds with a 3m sampling
line
• < 3.3 seconds with a 2 or 3m
sampling line
• < 300 ms with nominal flow
• < 260 ms with 120 ml/min
sampling rate and 2 or 3m sample
line
< 0.1 vol%
0 to 100 vol%
1% for values under -10% and over
10%
0.1 for values between -9.9...9.9%
< 3.3 seconds with a 2 or 3m sampling
line
< 260 ms
< 0.3 vol%