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Message
Priority
Audible
Visual Indicators
Device Action
User Action
Start On
Battery
Info
◊
Start On Battery
message
Operates
Check battery status. Connect
to AC power source as soon as
possible.
Check AC
Power Supply
Info
◊
Check AC Power
Supply message
Operates
Connect device to a battery and
remove AC power. Replace the AC
power supply. If condition persists,
contact product support.
External Battery
Disconnected
Info
◊
Ext Batt Disconnected
message
Operates
Check the connection to the
battery if not an intentional
disconnection.
External Battery
Depleted
Info
◊
External Battery
Depleted message
Operates
Replace depleted battery with
another or switch to AC power, if
available.
5.7 Verifying the Alarms
Use the test setup from the Verifying the Pressure instructions in Section 6.6 for the following tests.
Patient Disconnect Alarm Test
Note:
The Patient Disconnect Alarm relies on a fixed relationship between the patient pressure settings and the
open circuit flow of the patient circuit. You must verify that the Patient Disconnect Alarm operates properly with
the patient pressures and circuit.
1. Set the Apnea Alarm setting to Off.
2. Set the Patient Disconnect Alarm setting to 15 seconds.
3. Exit to the Monitor Pressure screen. Remove the closed end cap. Verify that the Patient Disconnect alarm occurs
in approximately 15 seconds.
4. Press the Alarm Silence/Indicator button to silence the alarm, and wait for one minute until the alarm sounds again.
5. Press the wheel to clear the alarm.
6. Replace the closed end cap.
7. Set the Patient Disconnect alarm to Off.
Apnea Alarm Test
8. Set the Apnea Alarm setting to 10 seconds.
9. Exit to the Monitor Pressure screen. Verify that the Apnea alarm occurs in approximately 10 seconds.
10. Press the wheel to clear the alarm.
11. Set the Apnea Alarm setting to Off.
Low Minute Ventilation Alarm Test
12. Connect the device to a test lung.
13. Observe the displayed Min Vent parameter.
14. Set the Low Minute Ventilation Alarm to a value greater than the displayed Min Vent parameter on the bottom of
the Monitoring screen. Verify that the Low Minute Ventilation alarm occurs.
15. Press the wheel to clear the alarm.
16. Set the Low Minute Ventilation Alarm setting to Off.
Loss of Power Alarm Test
17. While the device is providing therapy, remove the power connector and verify that Loss of Power alarm sounds.
18. Reconnect power and verify that the device resumes providing therapy.
IMPORTANT: When testing is complete, and before patient use, adjust the device to the appropriate patient
settings.