ResMed Astral Series User Manual page 72

Alarm message
Internal battery degraded
Last self-test failed
Low internal battery
Low FiO
2
Low MVe
Low MVi
Low PEEP
Low pressure
Low Pulse Rate
Low SpO
2
Low Vte
Low Vti
No FiO monitoring
2
No SpO monitoring
2
NV Mask/Rebreathing
Action
1. Connect the Astral to mains AC power.
2. Return the device for service to replace the internal battery.
The internal battery run time indicator may no longer be accurate and should not be relied
upon.
1. Perform a Learn Circuit.
2. If problem persists, return the device for service.
Connect the Astral to mains AC power to allow the battery to recharge.
1. Check the patient's status.
2. Check for leak.
3. Check the oxygen supply and connections to the device.
4. Perform a Learn Circuit to recalibrate the oxygen sensor.
1. Check the patient's status and airway.
2. Inspect the circuit and the expiratory valve for obstruction or leaks.
3. Perform a Learn Circuit.
1. Check the patient's status and airway.
2. Inspect the circuit for obstruction.
3. Perform a Learn Circuit.
1. Check the patient's status.
2. Inspect the circuit and the expiratory valve for obstruction or leaks. When in use,
check for obstructions in proximal lines.
3. Perform Learn Circuit.
1. Check all circuit connections, especially the patient interface and the proximal sense
line.
2. Inspect the circuit and expiratory valve for damage or secretions.
3. Perform a Learn Circuit.
Check the patient's status.
Check the patient's status.
1. Check the patient's status and airway.
2. Inspect the circuit and the expiratory valve for obstruction or leaks.
3. Perform a Learn Circuit.
1. Check the patient's status and airway.
2. Inspect the circuit for obstruction.
3. Perform a Learn Circuit.
Perform a Learn Circuit to calibrate the oxygen sensor.
1. Check the SpO connection to patient's finger and the Astral.
2
2. If the alarm persists, use another SpO
For vented circuit:
1. Check that the mask vents are clear and unobstructed.
2. Check the mask type setting.
3. Perform a Learn Circuit.
For mouthpiece circuit:
Check that the interface is a mouthpiece and that the patient is not continuously exhaling
into the circuit.
oximeter or finger sensor.
2
Troubleshooting
English 67