ResMed S9 Series Clinical Manual page 35

Flow (maximum) at set pressures
The following are measured at the end of the specified tubing:
Pressure
cm H O Standard air tube
2
4
8
12
16
20
Displayed values
Value
Pressure sensor at air outlet
Pressure
Flow derived value
Leak
The displayed values are estimates. They are provided for trending purposes only.
*
Pressure accuracy
Maximum static pressure variation at 10 cm H
Without humidifier
(SlimLine tube)
With H5i humidifier
(SlimLine tube)
Maximum dynamic pressure variation according to ISO 17510-1:2007:
Pressure (cm H O)
2
4
8
12
16
20
S9 and
SlimLine air tube
L/min
198
189
180
170
155
Range
4 to 20 cm H O
2
0–200 L/min
9.76 cm H O to 9.87 cm H
2
9.78 cm H O to 9.88 cm H
2
10 BPM
S9 and SlimLine tube without H5i / S9 and SlimLine tube with H5i
0.22 / 0.20
0.23 / 0.19
0.22 / 0.21
0.22 / 0.23
0.24 / 0.27
S9 and
L/min
178
171
164
156
140
Accuracy
±0.5 cm H O (± 4% of
2
measured value)
*
O according to ISO 17510-1:2007:
2
O
2
O
2
15 BPM
0.28 / 0.29
0.32 / 0.29
0.35 / 0.29
0.41 / 0.33
0.37 / 0.34
S9, H5i and
ClimateLine heated air tube
L/min
167
159
142
137
115
Display resolution
0.1 cm H O
2
1 L/min
20 BPM
0.47 / 0.53
0.41 / 0.42
0.41 / 0.45
0.44 / 0.50
0.48 / 0.50
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