Leakage; Possible Causes Of Leakage; Systematic Localization Of Leakages - Dräger Perseus A500 Instructions For Use Manual

Leakage

Leakages may result in the system not being
operational or being operational with limitations
only.
WARNING
Risk due to leaks
As a result of leakage, ambient air may get
into the breathing gas and cause a reduction
in the depth of anesthesia, or ambient air may
become enriched with anesthetic gas and
consequently put the user at risk.
Perform the leakage test before using the
device. Reduce leakage to a minimum.
WARNING
Risk of insufficient ventilation
Breathing gas may escape because of
leakages, with the result that the applied
volume is less than the set volume.
Perform the leakage test before using the
device. Remedy all leakages.

Possible causes of leakage

– The CO absorber or the CLIC adapter is not
2
securely screwed to the breathing system.
– The APL valve is not correctly fitted to the
breathing system or is not set to 30 hPa
(cmH O).
2
– The breathing bag, the breathing hoses, the Y-
piece, or the microbial filter is incorrectly fitted
or damaged.
– The flexible arm for the breathing bag
(optional) is incorrectly fitted to the breathing
system. The sealing ring is soiled or damaged.
– The water trap is not connected.
– The sample line is not connected, is kinked, or
is leaking.
– The connections for the sample line are
damaged.
Instructions for use Perseus A500 SW 2.0n
– The O-rings on the inspiratory port or
expiratory port are damaged, soiled, or
missing.
– The flow sensors are incorrectly installed or
damaged. The rear O-ring is missing.
– The upper part of the breathing system housing
is incorrectly fitted or damaged.
– The valves or seals of the breathing system are
damaged.
– The circuit plug is scratched or damaged.
– The filling or emptying connections on the
vaporizer are leaking or are open. The
vaporizer is incorrectly fitted. The O-ring is
missing or damaged. The control dial is not set
to the 0 position.

Systematic localization of leakages

To find causes of leakages, isolate individual
components from the leakage test.
Component Measure
Sample line Remove the sample line and
seal the Luer-Lock connector on
the Y-piece.
Breathing Disconnect the breathing hoses.
hoses Connect the inspiratory port and
expiratory port with a hose that
is known to be without leakages.
Connect the breathing bag
directly to the breathing system.
Vaporizers Remove the vaporizers.
1 Perform a leakage test, see page 123, and use
the leakage assistant if necessary.
2 Contact service personnel if the leakages
cannot be localized.
Troubleshooting
181