Pneumatic Diagram - Weinmann BiLevel ST 22 Description Of Unit And Instructions For Use

Long-term pressure constant
measured according to
EN ISO 17510-1:2009
Finefilter separation level
to 2 μm
Fine filter service life
Permitted humidity for operation
and storage
System resistance with an air
flow of 60 l/min at the patient
connector aperture.
All values determined under ATPD conditions (ambient temperature and pressure, dry).

10.1 Pneumatic diagram

O pressure
2
source (0.5-6 bar)
Ambient
Filter element
air inlet
BiLevel ST 22 with hose system
WM 24130 and Silentflow
1hPa = 1 mbar
Vent to
ambient air
Flow adjuster Optional
up to max. 4 l/min O valve
2
Flow sensor
Metering pipe
Fan
Pressure sensor for
appliance pressure
Pressure sensor for
patient pressure
BiLevel ST 22
Δp = 0.4 hPa
≥ 99.7%
1000 hours with normal room air
≤ 95 % rF (no condensation)
WM 23600
kPa · s
0.20
l
Optional Optional
humidifier bacteria filter
BiLevel ST 22 with
VENTIclick
BiLevel ST 22 with O
system WM 23737, VENTIclick
WM 24365 and bacteria filter
WM 24148
kPa · s
0.31
Ventilation hose Expiration
1,8 m system
Technical data
hose
2
l
Patient mask
(nasal or full
facial mask)
45
EN