A5/A3™ Operating Instructions 046-003777-00 4 - 27
Preoperative Tests Alarm Tests
8. Connect the manual bag to the manual bag port. Push the O
2
flush button to fill the manual
bag. Ensure that the sensor measures at least 90 % O
2
.
9. Ensure that a high O
2
alarm (“FiO
2
Too High”) occurs.
10. Set the FiO
2
high alarm limit to 100 % and ensure that the alarm cancels.
4.14.3 Test the Low Minute Volume (MV) Alarm
1. Set the Auto/Manual ventilation switch to Auto.
2. Set the ventilator controls as follows:
• Ventilation mode: select VCV
• Vt: 500 mL
• Rate: 12 bpm
• I:E: 1:2
•Tpause: 10%
•PEEP: OFF
• Plimit: 30 cmH
2
O
3. Select the Alarms softkey and then the Limits tab. Set the MV low alarm limit to 8.0 L/min.
4. Ensure that a low MV alarm occurs after approximately 60 seconds.
5. Select the Alarms softkey and then the Limits tab. Set the MV low alarm limit back to a
value less than the measured MV value and ensure that the alarm cancels.
4.14.4 Test the Apnea Alarm
1. Connect the manual bag to the manual bag port
2. Set the Auto/Manual ventilation switch to Manual.
3. Turn the APL valve control to set the APL valve to 10 cmH
2
O.
4. Inflate using the O
2
pushbutton and squeeze the manual bag to ensure that a complete
breathing cycle occurs on screen.
5. Stop inflating the manual bag and wait for more than 30 seconds to ensure that the apnea
alarm occurs.
6. Inflate and squeeze the manual bag to ensure that the apnea alarm cancels.
4.14.5 Test the Continuous Airway Pressure Alarm
1. Connect the manual bag to the manual bag port.
2. Turn the O
2
flow control clockwise to set the O
2
flow to Off.
3. Turn the APL valve control to set the APL valve to 30 cmH
2
O position.
4. Set the Auto/Manual ventilation switch to Manual.
5. Push the O
2
flush button for approximately 15 seconds. Ensure that the Continuous Airway
Pressure alarm occurs.
6. Disconnect the breathing circuit and ensure that the alarm cancels.
7. Reconnect the breathing circuit.
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