9-8
3. Connect the test lung to the ventilator, and start the ventilation normally.
4. For the ventilator configured with one battery, the battery capacity is depleted after 90
minutes’ ventilation (for the ventilator configured with two batteries, the battery
capacity is depleted after 180 minutes’ ventilation). [System DOWN for battery
depletion!] alarm is triggered.
5. Reconnect the AC power.
6. Check if [System DOWN for battery depletion!] alarm is reset, and the ventilator is
powered by AC power.
9.11.3 Paw Too High Alarm
1. After the system is powered on normally, connect the test lung to the ventilator and start
ventilation.
2. Set the airway pressure alarm high limit to the current Ppeak +5cmH2O.
3. Press the test lung in the inspiratory phase.
4. Check if [Paw Too High] alarm is triggered, if the ventilation cycle enters inspiratory
phase, and if airway pressure is reduced to the value of PEEP.
9.11.4 TV Not Achieved Alarm
1. After the system is powered on normally, connect the test lung to the ventilator and start
ventilation.
2. Disconnect the VBS pipe from the test lung, and check if [TV Not Achieved] alarm is
triggered.
9.11.5 MV Too Low Alarm
1. After the system is powered on normally, connect the test lung to the ventilator and start
ventilation.
2. Set MV alarm low limit to be larger than the current MV, and check [MV Too Low]
alarm is triggered.
9.11.6 O2 Supply Pressure Low Alarm
1. Connect high pressure O2 supply and air supply to the ventilator.
2. After the ventilation is normal, close the high pressure O2 supply, and check if [O2
Supply Pressure Low] alarm is triggered.
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