Testing The Alarm Sounders And Indicators - ResMed Astral Series User Manual

WARNING
•
Alarm volume cannot be adjusted separately for individual alarms. Adjusting the alarm volume
will change the volume of all alarms, independent of alarm priority level.
•
When adjusting alarm volume, ensure that the alarm can be heard above the ambient noise
levels that the patient may experience in a variety of settings, including use in noisy
environments or inside mobility bags.
In the example below, your Clinician has maintained the default alarm volume of three. This means the
'1' and '2' volume options are disabled and you are free to increase and decrease the alarm Volume
levels between '3' and '5'. If however, your Clinician had set the minimum volume level at '1', all volume
options would be available for selection.

Testing the alarm sounders and indicators

To confirm the alarm will sound as intended, regularly test the alarm.
The Astral device incorporates two alarm sounders. During an alarm condition both sounders are
operated in parallel. To confirm the correct operation of each sounder, regularly perform the Alarm test
function. During this test each sounder will be operated separately and in sequence.
To test the alarm sounders and indicators:
1. Press . The Alarms screen is displayed.
2. Press . The Alarm volume screen is displayed.
3. Press Test to test the alarm. The alarm beeps twice and the LED flashes to indicate it is working
correctly. Confirm the alarm beeps twice. Confirm the Alarm bar flashes red, then yellow. Confirm
the mute button flashes.
WARNING
If no alarm sounds, do not use the ventilator.
Alarms
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