Heyer LUVAR A - Maximum Flow Rate as Per ISO 80601-2-70; Pneumatic Diagram

Appendix
Page 65
heyer_LUVAR_UserManual_EN-3_CRev-1
4 hPa 7 hPa 13 hPa 18 hPa 21 hPa
With-
out
With With-
out
With With-
out
With With-
out
With With-
out
With humidifier
20
bpm
0.142 0.155 0.125 0.137 0.123 0.136 0.137 0.144 0.143 0.156
mean
deviation
0.154 0.170 0.141 0.155 0.153 0.164 0.168 0.179 0.178 0.195
standard
deviation
Note: The data in the tables were obtained between 60 and 85% during the
inspiratory phase and between 65 and 90% during the expiratory phase. The
data time windows begin immediately after initial settling and end at the point
where the ow falls to an equivalent absolute value of its starting point, just
before the end of the respiratory phases.
Maximum flow rate as per ISO 80601-2-70
Maximum flow in CPAP
and Auto CPAP mode
Test pressures:
Pressure at the patient
connection port at a flow
of 40 l/min
Flow rate at patient con-
nection port
4 hPa 3.95 hPa 172.5 l/min
8 hPa 7.95 hPa 188.9 l/min
12 hPa 11.83 hPa 177.4 l/min
16 hPa 15.96 hPa 161.8 l/min
20 hPa 19.91 hPa 142.5 l/min
Pneumatic diagram
Inlet
filter
Flow Sensor Pressure Sensor
Control and Detection System
Blower
Noise reducing system
Device
Water
tank
Humidifier
Bacteria
filter
Tube Mask Patient