Weinmann BiLevel-ST VENTImotion WM 24800, Service And Repair Instructions

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22 Test the device
Function check VENTI- O
2
1. Fit the VENTI- O
2
to the therapy device so that
it is ready to work. The status display on top of
the valve housing does not light up.
2. Attach the test hose supplied (length approx.
48 cm) to the O
2
outlet ( ).
3. First switch on your therapy device and then
your O
2
supply. After the therapy device has
been switched on, the valve opens with a soft
"click". The green status display lights up.
4. Close the opening of the mask, using a thumb
or hand, for example.
5. Set the prescribed flow rate at the flow setting
of your oxygen system. If this is not possible,
first check the function of your oxygen system
(is the cylinder empty, for example, or are
hoses kinked?).
6. Hold the free end of the test hose in a glass
half-filled with water. VENTI- O
2
is working cor-
rectly if bubbles escape from the end of the
hose.
7. Switch the therapy device off again.
VENTI- O
2
is working correctly if the valve au-
dibly switches to "vent", the status display goes
out and no more bubbles escape from the end
of the test hose.
8. Shut off the oxygen supply of your oxygen
system.
4.18 Once tests are complete
• Reset the therapy values you noted during preparations.
Status display
O
2
outlet