Leak Tests - Dräger Apollo Operating Instructions Manual

Chapter 5 - Preuse Checkout

Leak Tests

The Apollo tests for leaks in the mechanical
subsystem and in the Man/Spont system.
Figure 50 shows the components tested in the
mechanical ventilation branch. This branch is tested
with positive pressure. Leaks are indicated on the
Self Test Results screen by the red/yellow/green
indicator and by posting the leak value in mL/min
(Leak (system) test result in
Figure 51 shows the components tested in the Man/
Spont leak test. This test is performed with sub-
atmospheric pressure. Leaks are indicated on the
Self Test Results screen by the red/yellow/green
indicator and by posting the leak value if it's over
150 mL/min (Leak (Man/Spont) result in
The Apollo determines the current leakage of the
breathing system and breathing hoses. The system
tolerates leakage of up to 150 mL/min.
For leaks of more than 150 mL/min:
• check the components of the breathing
system, repair any leaks, and repeat the leak
test.
Note:
Carry out leak test after changing breathing
hoses, vaporizers or soda lime.
Possible causes of leaks include:
• Leaks in the breathing circuit or disconnection
of circuit components
• CO canister not seated properly
2
• Gas sampling line cracked or disconnected
If a leak is reported, check the following:
• Verify that the breathing bag is secured tightly
and not leaking.
• Ensure that the patient hoses, filters, and
Y-piece are tightly connected and not leaking.
• Remove the inspiratory and expiratory 22 mm
(0.87 in) port connectors and ensure that the
O-rings are present and in good condition.
• Ensure that both flow sensors are present and
not cracked or broken.
• Ensure that the bag arm connection to the
breathing system is secured tightly and not
leaking.
• Verify that the gas sampling line connections
are tight and free of cracks or damage.
• Verify that the vaporizer fill and drain ports are
tight and closed and that the vaporizers are
properly secured to the vaporizer mount.
66
Figure 48).
Figure 48).
Figure 50. Mechanical Ventilation Leak Test
Figure 51. Man/Spont Ventilation Leak Test

Leak Tests

Apollo Operator's Manual