Mindray WATO EX-55, Service Manual

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3-7
3.6.2 In Manual Ventilation Mode
1. Set the bag/mechanical ventilation switch to the bag position.
2. Set the system switch to the position or set the system to Standby.
3. Plug the patient connection using a test plug.
4. Connect a 3 L or 1 L bag to the bag arm or manual bag port.
5. Turn off ACGO (if ACGO is configured).
6. Let the bag completely collapse.
7. Turn the APL valve to 75 cmH2O.
7. Press and hold the O2 flush button . Measure the time required for the reading on
the pressure gauge to reach 10 cmH2O.
8. Repeat the operation (opening patient connection to collapse the bag) at least twice.
9. Check that
‹ The 3 L bag is fully inflated within 3 to 6 seconds.
‹
The 1 L bag is fully inflated within 1 to 3 seconds.
3.7 Breathing Circuit Tests
WARNING
z
Objects in the breathing circuit can stop gas flow to the patient. This can cause
injury or death. Make sure that there are no test plugs or other objects in the
breathing circuit.Make sure that there are no test plugs or other objects in the
breathing circuit.
z
Do not use a test plug that is small enough to fall into the breathing circuit.
1. Make sure that the breathing circuit is correctly connected and not damaged.
2. Make sure that the check valves in the breathing circuit work correctly:
‹
The inspiratory check valve opens during inspiration and closes at the start of
expiration.
‹
The expiratory check valve opens during expiration and closes at the start of
inspiration.