Mindray A9 Operating Instructions

Operator’s Manual of Anesthesia System 5 - 13
Preoperative Tests Breathing System Test
8. Set the APL valve to the 70 cmH
2
O position.
9. Push the [O
2
Flush] button until the airway pressure gauge value is about 30 cmH
2
O.
10. Release the [O
2
Flush] button. Make sure that there is no pressure decrease on the airway
pressure gauge.
11. Turn off the vaporizer.
12. Repeat Steps 6, 7, 8, 9,10 and 11 for another vaporizer.
5.11 Breathing System Test
WARNING: Objects in the breathing system can stop gas flow to the patient.
This can cause injury or death. Ensure that there are no test plugs or
other objects in the breathing system.
WARNING: Do not use a test plug that is small enough to fall into the breathing
system.
5.11.1 Inspiratory and Expiratory Check Valve Tests
1. Ensure that the breathing system is correctly connected and not damaged.
2. Ensure that the check valves in the breathing system are operating normally.
a. Check that the inspiratory check valve opens during inspiration and closes at the start of
expiration.
b. Check that the expiratory check valve opens during expiration and closes at the start of
inspiration.
5.11.2 APL Valve Test
1. Enter Standby mode.
2. Set the Auto/Manual switch to the Manual position.
3. Connect the manual bag to the bag arm port.
4. Connect the Y-piece on the breathing circuit to the leak test port.
5. Turn the APL valve control to the 30 cmH
2
O position.
6. Press the [O
2
Flush] button to inflate the manual bag.
7. Ensure that the reading on the airway pressure gauge is within the range of 25 cmH
2
O to
40 cmH
2
O.
8. Turn the APL valve control to the fully open position.
9. Set the O
2
flow to 3 L/min. Turn any other gases off.
10. Ensure that the reading on the airway pressure gauge is less than 5 cmH
2
O.
11. Push and hold the [O
2
Flush] button. Ensure that the reading on the airway pressure gauge
does not exceed 10 cmH
2
O.
12. Set the O
2
flow to zero. Ensure that the reading on the airway pressure gauge does not fall
below 0 cmH
2
O.

Mindray A9 Specifications

General

Brand	Mindray
Model	A9
Category	Medical Equipment
Language	English