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Preoperative Preparations Preoperative Tests

4 - 28 046-003777-00 A5/A3™ Operating Instructions

4.14.6 Test the High Paw Alarm

1. Set the Auto/Manual ventilation switch to Auto.

2. Select the Alarms softkey and then the Limits tab.

3. Set the PEAK low alarm limit to 0 cmH

O and PEAK high alarm limit to 10 cmH

4. Ensure that a high Paw alarm (“Paw Too High”) occurs.

5. Set the PEAK high alarm limit to 40 cmH

6. Ensure the high Paw alarm cancels.

4.14.7 Test the Low Paw Alarm

1. Set the Auto/Manual ventilation switch to Auto.

2. Select the Alarms softkey and then Limits tab.

3. Set the Peak low alarm limit to 2 cmH

4. Disconnect the test lung or manual bag from the Y-piece of the breathing circuit.

5. Wait for 20 seconds. View the alarm area and ensure that a low Paw alarm occurs.

6. Connect the test lung or manual bag to the Y-piece of the breathing circuit. If using a

manual bag, squeeze the bag to cancel the alarm.

7. Ensure the low Paw alarm cancels.

4.15 Preoperative Preparations

1. Ensure that the ventilator parameters and alarm limits are set to applicable clinical levels.

2. Ensure that the system is in Standby.

3. Ensure that the equipment for airway maintenance, manual ventilation and tracheal

intubation, and applicable anesthetic and emergency drugs are available.

4. Set the Auto/Manual ventilation switch to Manual.

5. Connect the manual bag to the manual bag port.

6. Turn off all vaporizers.

7. Turn the APL valve control to the SP position to fully open the APL valve.

8. Turn all flow controls to set all gas flows to Off.

9. Ensure that the breathing system is correctly connected and not damaged.

WARNING: Before connecting a patient, flush the A5/A3 anesthesia machine with

L/min of O

for at least two minutes. This removes unwanted mixtures

and by-products from the system.

Mindray A5 Operating Instructions

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