Using the ventilator 35
If the maximum ventilation pressure is exceeded for
a second time during the same inspiration phase, the
device finally switches to expiration and vents the
patient tube system completely. The next inspiration
starts with the following ventilation stroke according
to the frequency selected. The frequency is not
affected.
The alarm is set off when airway resistance is exceed-
ed in two successive inspiration phases. This is to
prevent false alarms, alarms caused by coughing for
example.
Disconnection alarm
The rise in pressure during the inspiration phase is
less than 5 mbar. This is generally due to an interrup-
tion in the breathing system.
The alarm is set off when the rise in pressure is less
than 5 mbar in two successive inspiration phases.
< 2,7 bar O
2
alarm
Oxygen pressure at the pressure connection to
MEDUMAT Standard a has dropped to less than
2.7 bar. The reason is usually an almost empty
oxygen cylinder.
In this case MEDUMAT Standard a will no longer
function correctly because the operating parameters
will not lie within the permissible limits.
Alarm
The battery is failing. Failure of the automatic venti-
lation function must be expected. Immediate steps
must be taken to provide alternative ventilation
(note “5.12 Alternative ventilation procedures“ on
page 38).
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