Datex-Ohmeda Aespire 7900, User'S Reference Manual

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6 Specifications and Theory of Operation
1009-0633-000
6-3
Figure 6-1 legend
1. Auxiliary O
2
, 0-10 LPM (optional)
2. O
2
flush
3. Gauge
4. O
2
P-Line
5. 110 psi relief
6. Venturi
7. Vent drive
8. Air P-line (optional)
9. 110 psi relief
10. Air cylinder (optional)
11. N
2
O pipeline (optional)
12. 110 psi relief
13. N
2
O cylinder (optional)
14. O
2
cylinder (optional)
15. 0 - 120 L/min flow
16. System switch
17. NC
18. NO
19. 30 psi
20. O
2
supply switch
21. -
22. -
23. -
24. -
25. Link 25
26. Flowmeter module (dual tubes
optional)
27. Atmosphere
28. Free breathing check valve
29. Vaporizer
30. Mechanical overpressure valve (110
cm H
2
O)
31. Drive gas check valve
32. Inspiratory flow control valve
33. Gas inlet valve
34. 25 psi @15 LPM
35. Vent to ambient
36. Balance regulator
37. Link 25
38. Air (optional)
39. Selectatec manifold
40. Vaporizer
41. 5.5 psi pressure relief valve
42. Popoff valve
43. Exhalation valve (2.0 cm H
2
O bias)
44. 10 cm H
2
O
45. 0-10 LPM drive gas, 0-10 LPM patient
and fresh gas, 0-20 LPM total typical
flow
46. 200 mL reservoir
47. Negative pressure relief valve
48. Control bleed to ambient
approximately 1.0 L/min at 0.29 kPa
(3.0 cm H
2
O) if continuous (rate
dependent
49. Absorber
50. 5.4 psi O
2
flush switch
51. NO
52. NC
53. ACGO selector valve
54. O
2
sensor
55. ACGO
56. Airway pressure gauge
57. APL valve 0-70 cm H
2
O
58. Bag
59. Expiratory flow sensor
60. (Optional)
61. To scavenging
62. Gas monitor
63. Patient
64. Inspiratory flow sensor
65. -
66. Manifold pressure transducer
67. Drive pressure limit switch
68. Expiratory flow transducer
69. Inspiratory flow transducer
70. Paw transducer
71. Enhanced sensor interface board