3 Checkout Procedure
M1207026
3-21
3.11 Breathing system tests
WARNING
Objects in the breathing system can stop gas flow to the
patient. This can cause injury or death. Do not use a test
plug that is small enough to fall into the breathing system.
1.
Verify that AGSS is operating if equipped. For systems that have
a flow indicator on the side, make sure that the flow indicator
shows a flow in the green (normal) region.
2.
Zero the pressure gauge (Section 5.4.1).
Check valves
3.
Make sure that the check valves on the breathing circuit module
work correctly:
•
The Inspiratory check valve rises during inspiration and falls
at the start of expiration.
•
The Expiratory check valve rises during expiration and falls at
the start of inspiration.
Ventilator bellows
4.
Ventilator bellows test:
•
Set the Bag/Vent switch to Vent.
•
Set the system switch to Standby.
•
Turn all flow controls fully clockwise (zero flow).
•
Use the test plug or your hand to close the breathing circuit at
the patient connection.
•
Push the O
2
flush button to fill the bellows.
•
The pressure must not increase to more than 15 cm H
2
O on
the pressure gauge.
•
If the bellows falls more than 150 mL/min (top of indicator), it
has a leak.
Service Mode Tests
5.
Enter the Service Mode: Push and hold the adjustment knob on
the ventilator’s display and set the system switch to On.
•
Select and confirm “Service Mode”.
•
From the “Diagnostic Test/Tools”, select “Breathing System
Leak Test”.
•
Follow the instructions on the screen.
•
The leak rate should be less than 200 mL/min.
Bag circuit
6.
Test the bag or manual circuit for leaks:
•
Set the system switch to On.
•
Set the Bag/Vent switch to Bag.
•
Plug the bag port (use your hand or the approved test plug).
•
Close the APL valve (70 cm H
2
O)
•
Set the O
2
flow to 0.25 L/min.
•
Close the patient connection (using a hand or the approved
test plug) and pressurize the bag circuit with the O
2
flush
button to approximately 30 cm H
2
O.
•
Release the O
2
flush button. The pressure must not
M1207027
004
MANUAL−DOC, Technical Reference Manual, Technical Reference Manual for 9100c, English−default
Reproduced from the electronic master in MATRIX
