Technical data 73
11.6 Switching from Air Mix to No Air Mix
The injector unit is switched off when switching
from
Air Mix to No Air Mix. This increases minute vol-
ume which can result in the set pressure limit being
exceeded and a stenosis alarm (Stenosis) being trig-
gered. In this case, set minute volume correspond-
ingly
lower.
In the opposite instance, in other words when
switching from
No Air Mix to Air Mix, the injector
unit is switched on. This reduces minute volume
which can lead to the set pressure limit being
under-
shot
. In this case, set minute volume correspondingly
higher.
50
55
60
65
70
75
80
85
90
95
100
3 5 7 9 11 14 17 20
Minute volume (l/min)
O
2
(%)
10 mbar counter-pressure
15 mbar counter-pressure
30 mbar counter-pressure
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