50 Functional checks
Check the breath volume
1. MEDUMAT Standard a must be switched off
and the oxygen cylinder must be open.
2. Place the bag from test kit WM 15382 on to the
patient valve.
3. Select the following settings:
– Frequency: 8 min
-1
–MV: 8 l/min
–P
max
: 60 mbar
–No Air Mix
Note For the test, place the test bag on a firm base.
During the expiration phase, press the test bag
with the flat of your hand until the volume is
completely expelled through the patient valve.
Inspiration stroke =
MV/frequency = 8/8 = 1
4. Switch on MEDUMAT Standard a. The test bag
must be completely inflated at the end of the in-
spiration phase. This ensures a breath volume of
1 litre per inspiration stroke. At all events the test
bag is not sufficiently inflated if a disconnection
alarm is set off. During the expiration phase you
must simulate the expiration stroke of the test
bag by hand.
5. Switch off MEDUMAT Standard a.
Risk of injury if test bag removed
incorrectly!
If the test bag is removed incorrectly, the con-
nector of the test bag may remain on the pa-
tient’s hose system. The increased airway resis-
tance on inspiration which results may injure the
patient.
– When removing the test bag, always take it
off at the connector.
6. Detach the test bag from the patient valve.
7. Select the following setting:
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