Testing the alarms
56
CAUTION
If only one beep is heard, or the Alarm bar does not flash red, then yellow, return the device for
servicing.
Testing the Remote Alarm
The Remote Alarm generates an audible and visual signal when an alarm is triggered on the ventilator.
CAUTION
A test of the Remote Alarm should be performed prior to initial use and every change of battery.
Test the alarm periodically as per the facility policy. For dependent patients perform a test on a
daily basis.
To test the Remote alarm, press on the Remote Alarm.
The following will occur:
• The alarm LED illuminates and the alarm sounds.
• The LED corresponding to the set volume illuminates.
• The Disconnect LED blinks if the alarm is not connected to the device and lights permanently if
connected.
• The battery level LED corresponding to the battery level illuminates. Yellow LED if battery life is low,
or green LED if battery life is good. (Replace the battery if the battery life is low).
• If a second Remote Alarm is connected, the second Remote Alarm will also sound.
Testing the alarms
WARNING
Do not perform alarm tests while the patient is connected to the ventilator.
This section describes functional tests to allow the user to understand the conditions that can trigger
common Astral alarms. The efficacy of therapy alarm limits should be assessed by your clinician.
Note: In some alarm test procedures multiple alarms will be triggered. To see all of the active alarms,
press the Alarm display button as described in the Viewing the active alarms (see page 53).
CAUTION
When the alarm tests are completed ensure the Astral device is restored to its original state and
the internal battery is charged.
Alarm Test procedure
Low Pressure
1. Disconnect the patient interface from the circuit.
2. Start ventilation.
Low Vte
(Only possible on Double limb and Single limb
with intentional leak circuits)
1. Disconnect the patient interface from the circuit.
2. Start ventilation.
Obstruction
1. Disconnect the patient interface from the circuit.
2. Start ventilation.
3. Block the circuit outlet.
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