ResMed Astral 100 Series User Manual

Troubleshooting
English 59
Alarm message Action
Flow sensor fault Replace expiratory flow sensor.
Flow sensor not calibrated Perform a Learn Circuit.
High FiO
2
1. Check the patient's status.
2. Check and adjust the oxygen supply.
3. Perform a Learn Circuit to recalibrate the oxygen sensor.
High Leak
1. Check the patient's status.
2. Inspect the circuit, expiratory valve and proximal lines for leak. When in use, check
for leaks around the mask.
3. When using vented therapy, check the mask type setting.
4. Perform a Learn Circuit.
High MVe
1. Check the patient's status.
2. Inspect the expiratory valve. If necessary, replace the expiratory valve.
3. Perform a Learn Circuit.
High MVi
1. Check the patient's status.
2. Inspect the circuit and expiratory module for leaks.
3. Perform a Learn Circuit.
High PEEP
1. Check the patient's status.
2. Inspect the circuit and expiratory valve for obstruction. When in use, check for
obstruction in proximal lines.
3. Perform a Learn Circuit.
High pressure
1. Check the patient's status and airway.
2. Inspect the circuit for obstruction.
3. Perform a Learn Circuit.
High Pulse Rate Check the patient's status.
High Resp Rate
1. Check the patient's status.
2. Perform a Learn Circuit.
High SpO
2
Check the patient's status.
High Vte
1. Check the patient's status.
2. Inspect the expiratory valve. If necessary, replace the expiratory valve.
3. Perform a Learn Circuit.
High Vti
1. Check the patient's status.
2. Inspect the circuit and expiratory module for leaks.
3. Perform a Learn Circuit.
Incorrect circuit
1. Check that the circuit is correctly connected and matches the circuit type selected.
2. Inspect the circuit, expiratory valve and proximal lines.
3. Perform a Learn Circuit.
Internal battery degraded
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.
Last self-test failed
1. Perform a Learn Circuit.
2. If problem persists, return the device for service.
Low internal battery Connect the Astral to mains AC power to allow the battery to recharge.

ResMed Astral 100 Series Specifications

General

Device Type	Portable Ventilator
Max Pressure	60 cm H2O
Operating Temperature	5°C to 40°C (41°F to 104°F)
Operating Humidity	10% to 95% relative humidity, non-condensing
Display	Color LCD touchscreen
Modes of Ventilation	CPAP
Data Storage	SD card
Alarms	Adjustable visual and audible alarms
Tidal Volume	50 to 2500 mL
Inspiratory Time	0.3 – 5 seconds
FiO2 Monitoring	Yes
Power Supply	AC 100 – 240V, 50/60 Hz
Oxygen Compatibility	Yes
Pressure Range	4 – 60 cm H2O
PEEP	4 to 25 cm H2O