33
4.4
Leak test, expiration
Remove the flow sensor (Spirolog sensor (
A
))
and sleeve (
B)
. Seal the outlet of the
expiratory valve and use the syringe to build
up a pressure of 40 mbar
±
2 mbar.
Test set-up:
Test value:
The volume injected via the syringe in 15
seconds must be < 25 mL.
4.5
Testing of ”120 mbar valve D1”
Test set-up:
Increase the pressure until a flow rate of
120 L/min
±
5 L/min is achieved.
Test value:
The pressure at the inspiratory port must be
>100 mbar and <120 mbar.
Savina
Pressure gauge —30 to 120 mbar
Syringe
A
B
D
Savina
Pressure gauge
—30 to 120 mbar
Flowmeter 10 to 120 L/min
P
