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1.
Auxiliary O2, 0-10 l/min, optional
2.
Pipeline: O2, Air, N2O
3.
Shuttle valve
4.
Cylinder: O2, Air, N2O
5.
Venturi drive gas connection
6.
Vent drive gas select
7.
O2 flush
8.
Microswitch
9.
Gas control module
10.
Air flow sensor
11.
O2 flow sensor
12.
N2O flow sensor
13.
Filter
14.
Air selector valve
15.
N2O selector valve
16.
O2 secondary regulator
17.
O2 bypass valve
18.
O2 latching valve
19.
Balance regulator
20.
Needle valve
21.
Link-25
22.
Total flowmeter, 0 - 10 l/min
23.
Auxiliary O2+Air (optional)
™
24.
Selectatec
Manifold, two vaporizer option
25.
Vaporizer
26.
Air regulator, optional, 30 psi
27.
ACGO, optional
28.
Mechanical overpressure valve, 110 cmH2O
29.
ACGO outlet port, optional
30.
ACGO transducer, optional
31.
Vent engine
32.
Filter
33.
Drive gas inlet valve
34.
Regulator, 25 psi (15 LPM)
35.
Inspiratory flow control valve
36.
Drive gas flow sensor
37.
Drive gas check valve, 3.5 cmH2O bias
Figure 11-1 • System pneumatic diagram
Gas supplies
2076152-001
11 Specifications and theory of operation
38.
Mechanical overpressure valve, 110 cmH2O
39.
Free breathing check valve
40.
Atmosphere
41.
Bellows housing
42.
Bellows
43.
Pop-off valve
44.
Exhalation, 2.0 cmH2O bias
45.
Vent engine manifold pressure
46.
200 ml reservoir
47.
Bleed resistor
48.
Vent to ambient
49.
Bag/Vent switch
50.
Bag
51.
APL valve, 0.5 - 70 cmH2O
52.
Negative pressure relief valve
53.
Absorber canister
54.
CO2 bypass
55.
Inspiratory flow sensor
56.
Inspiratory check valve
57.
O2 cell
58.
Expiratory check valve
59.
Expiratory flow sensor
60.
Inspiratory flow transducer
61.
Expiratory flow transducer
62.
Paw transducer
63.
Patient Y or patient connection
64.
Gas monitor
65.
Default factory connection
66.
Passive AGSS
67.
Relief valve, -0.3 cmH2O
68.
Relief valve, 10 cmH2O
69.
To disposal system
70.
Active AGSS, High vacuum
71.
Reservoir
72.
To pressure sensor in ACB
73.
Active AGSS, Low vacuum, BSI 30mm, SIS EVAC,
DISS and 25 mm BARB
74.
Active AGSS, Other low vacuum
Pressurized gas supplies enter the system through a pipeline or
cylinder connection. All connections have indexed fittings, filters, and
check valves.
A regulator decreases the cylinder pressures to the appropriate
system pressure. A pressure relief valve helps protect the system
from excessive high pressures.
11-3
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