2 Theory of Operation
M1046983 04/08
2-61
2.13.2 Pressure
regulator
The pressure regulator (
4
) is a non-relieving pressure regulator that regulates high
pressure filtered supply gas down to 172 kPa (25 psi).
Figure 2-48 • Pressure regulator
2.13.3 Flow
control valve
The flow control valve (
5
) is controlled by the CPU. Signals are sent to the flow control
valve of the necessary flow determined by ventilator settings and sensor signals. The
flow control valve modulates the incoming 172 kPa (25 psi) drive gases to an output
from 0 to 120 liters per minute at pressures ranging from 0 to 100 cm H
2
O.
Figure 2-49 • Flow control valve
4
Vent to Ambient
(2.0 cm
20
5.4 psi
25 psig @
15 LPM
(3.5 cm H2O bias)
Inspiratory Flow
Control Valve
Gas Inlet
Valve
C
if
P
5
Exhala
(2.0 c
Popoff
Valve
Atmosphere
25 psig @
15 LPM
Drive Gas Check Valve
(3.5 cm H2O bias)
Free Breathing
Check Valve
Mechanical Overpressure
Valve (110 cm H2O)
Inspiratory Flow
Control Valve
Gas Inlet
Valve
Vent Engine
Summary of Contents for Datex-Ohmeda Aisys Carestation
Page 1: ...Aisys Anesthesia Machine Technical Reference Manual ...
Page 16: ...Notes xiv 04 08 M1046983 ...
Page 32: ...Notes 1 16 04 08 M1046983 ...
Page 158: ...Notes 5 20 04 08 M1046983 ...
Page 288: ...Notes 7 106 04 08 M1046983 ...
Page 325: ...9 Repair Procedures M1046983 04 08 9 29 The rear inverter A B C ...
Page 356: ...Notes 9 60 04 08 M1046983 ...
Page 401: ...10 Illustrated Parts M1046983 04 08 10 45 14 1 2 3 6 5 4 5 8 7 15 16 18 17 10 9 11 12 13 or ...
Page 452: ...Notes 10 96 04 08 M1046983 ...
Page 466: ...11 14 04 08 M1046983 Notes ...
Page 470: ...Aisys 12 4 04 08 M1046983 12 3 System Schematics 12 3 1 Power Schematic ...
Page 478: ...Aisys 12 12 04 08 M1046983 12 6 3 Tools Transfer Logs ...
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