Mindray Datascope AS 3000, Service Manual

Page: 154 / 180

AS3000™ Service Manual 0070-10-0683 6 - 27
Periodic Maintenance Functional Tests
6.8.7 Performance Verification
6.8.7.1 Standby Mode Ventilation Test
1. Ensure that the gas pressure for O
2
, N
2
O, and AIR are at 50 ±10 psi.
2. Power ON the AS3000 .
3. Perform the start up tests per the on-screen instructions. Ensure successful completion.
4. Attach a breathing circuit and test lung to the Y-fitting of the breathing circuit.
NOTE: For testing purposes always use a reusable breathing
circuit.
5. Set the APL Valve to approximately 15 cmH
2
O.
6. Set the AIR flow to 5 L/min using the flow control valve.
7. Squeeze the breathing bag once every 10 seconds to inflate and deflate the test lung to
approximately 20 cmH
2
O of pressure.
8. Verify the inflation and deflation of the test lung.
6.8.7.2 Manual Mode Ventilation Test
1. Set the Ventilation Mode to MANUAL .
2. Set the APL Valve to approximately 25 cmH
2
O. Push the O
2
Flush button to fill the
breathing bag.
3. Set the AIR flow to 1 L/min using the flow control valve.
4. Squeeze the breathing bag once every 3 seconds.
5. Verify the inflation and deflation of the test lung.
6. Verify that an airway pressure waveform and all numeric values appear on screen
during bag compressions.
7. Stop squeezing the breathing bag and set the APL Valve to the open position ( SP ).
6.8.7.3 APNEA Alarm Test
1. While in the Manual Ventilation Mode, stop ventilating the test lung.
2. Verify that the following APNEA alarm signals activate at approximately 60 seconds
from the last bag compression.
• APNEA appears on the screen.
• An alarm tone sounds.
6.8.7.4 Alarm MUTE Test
1. While the APNEA alarm is sounding, press the MUTE key.
2. Verify the audio portion of the alarm stops and resumes after 2 minutes.