Dräger Perseus A500 Instructions For Use Manual page 125

Perform the test:
1 Touch the Start button.
– Wait until the leakage value is stable.
Memorize the value.
– Set the anesthetic gas concentration on the
vaporizer to >0.2 Vol% (>2 Vol% for
desflurane).
– Wait until the leakage value is stable.
Memorize the value.
– If the two values differ from one another by
more than 50 mL/min, check the vaporizer
and the vaporizer interface for leakage.
– Set the anesthetic gas concentration to
0 Vol%.
2 Touch the OK button to switch back to the
display of available tests.
Checking a coaxial breathing hose for leakage
The leakage assistant can be used to identify
leakage in the inner hose of a coaxial breathing
circuit. When Dräger coaxial breathing circuits are
used, the inner hose must be connected directly to
the expiratory port using a test adapter.
E
Instructions for use Perseus A500 SW 2.0n
B
A
C
D
Prerequisites:
– Gas mixer:
– With electronically controlled gas mixer:
The flow control valve of the O
is closed.
– With mechanically controlled gas mixer:
All flow control valves are closed.
– The vaporizers are closed.
– The APL valve is set to 30.
Perform the test:
1 Connect the connector (A) to the inspiratory
port.
2 Connect the coaxial test adapter (B) to the
expiratory port.
3 Remove the elbow (C) from the hose. Connect
the connector (D) to the coaxial test
adapter (B).
4 Touch the Start button.
– Wait until the leakage value is stable.
If the leakage value exceeds
500 mL/min, use another breathing
circuit.
5 Touch the OK button to switch back to the
display of available tests.
6 Fully connect the breathing circuit.
– Remove the coaxial test adapter.
– Plug in the elbow again.
– Connect the connector (E) (expiration) to
the expiratory port.
– Perform the system test or the leakage test.
Tests
flowmeter
2
125