Dräger Perseus A500 - Page 129

Instructions for use Perseus A500 SW 2.0n 129
Tests
Checking the emergency O
2 delivery (with
electronically controlled gas mixer)
Prerequisite: Y-piece is sealed.
1 Set O
2 switch (A) to the Add. O2 position.
2 Open the flow control valve (B) of the O
2
flowmeter and set the desired O
2 flow.
The breathing bag fills and the inflow of gas is
audible.
3 Close the flow control valve (C).
4 Reset O2 switch (D) to the Aux. O2 position.
Checking the flow control valves (mechanically
controlled gas mixer)
1 Open the flow control valve for O
2 and set a
flow of approximately 2 L/min.
– The breathing bag inflates.
– The inflow of gas is audible.
– The total flow tube shows the total fresh-
gas flow.
2 Repeat the settings for the Air and N
2O flow
control valves.
3 Close all the flow control valves.
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A
B
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D
C