Dräger Babylog 8000 plus Operating Instructions Manual page 130

Theory of Operation
Functional Description of Pneumatics
Functional Description of Pneumatics (Simplified)
1 2 3
Air
O
2
1 2 3
1 Sintered filter
2 Non-return valve
3 Pressure regulator
4 Absolute pressure sensor
5 Solenoid valve of blender and flow unit
6 Flow restrictor for blender and flow unit
7 Solenoid switching valve
8 Solenoid valve
9 Solenoid valve
10 Non-return valve
11 Filter
12 Pneumatic control valve
13 Flow restrictor
14 O measuring system
2
15 Pneumatic control valve
16 Pneumatic safety valve
17 Relative pressure sensor
18 Electrical PEEP control valve
19 Safety valve
20 Expiratory valve
21 Bactericidal labyrinth
22 Relative pressure sensor
23 Solenoid valve
24 Ejector
130
5
6
4
E
P
5
6
4
P
E
7
9
8
19
23
24
15
13
11
12
10
16
18
20
O
2
14
E
Inspiration
P
17
E
E
22
P
21
Expiration