Pneumatic Diagram Operating Principles
C - 4 Operator’s Manual of Anesthesia System
3.6 Electronic Pressure
Sensor of Cylinder
12.5 Flow Sensor 18.21 Check Valve
3.7 Pressure Regulating
Valve of Cylinder
12.6 Filter 18.22 Expiratory Valve
3.8 Check Valve 12.7 2/3 Switch-Over Valve 18.23 1kPa Pressure
Relief Valve
4.1 Overfill Protector 12.8 Check Valve 18.24 Volume
Exchanger (VE)
4.2 Negative Pressure
Gauge
12.9 Filter 18.25 Manual/Auto
Switch Valve
4.3 Negative Pressure
Regulating Switch
12.10 2/3 Switch-Over Valve 18.26 APL Valve
4.4 Mode Selector
Switch
12.11 Check Valve 18.27 Manual Bag
5.8 Float Flowmeter(0-
60LPM)
12.12 Proportional Valve 19.1 Gas Reservoir
5.9 Check Valve 12.13 Flow Sensor 19.2 Waste Gas
Discharging Y-
Piece
5.10 Differential Pressure
Gauge
12.14 Flow Sensor 19.3 Negative Pressure
Regulating Valve
5.11 Proportional Valve 15.1 Internal AG 19.4 Differential
Negative Pressure
Gauge
5.12 Pilot Normally
Closed Valve
15.2 2/3 Switch-Over Valve 19.5 Pilot-Operated
AGSS Valve
5.13 Pilot 2/3 Switch-
Over Valve
15.3 2/3 Switch-Over Valve 20.1 Vaporizer Bypass
5.14 Check Valve 15.4 Self-sealing Sampling
Tube
20.2 Mechanical
Vaporizer
5.15 Differential Pressure
Gauge
15.5 External AG 20.3 Check Valve
5.16 Proportional Valve 16.1 Pressure Sensor 21 Normally-Closed
Switch Valve
5.17 Pilot Normally
Closed Valve
16.2 2/3 Switch-Over Valve / /
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