ZOLL AEV Operator's Manual page 97

2411 Heart Rate Low
Alarm triggers when the heart rate is less than the Low Heart Rate Limit. The default value for the limit is 40
beats/minute. The user should consult with the attending physician on how best to increase the heart rate to
an acceptable level.
Mitigation/Info: Heart Rate Below Limit, Check Low Limit Setting, **Consult Physician**
2421 Self Check Fault
Alarm triggers when there is a failure of the input protection circuit and the device is able to operate. The
alarm will continue until the device is turned off. The user can mute the alarm for 30 seconds by pushing the
MUTE/CANCEL button. The user should replace the ventilator and contact the service center for additional
information.
Mitigation/Info: Power System, Power System Needs Repair, Internal Battery Operation, Monitor Battery %
Charge, **Contact Service Center**
2423 Self Check Fault
Alarm triggers when the internal power circuit has failed and external power is connected but cannot be used.
The fault cannot be repaired by the user. Pressing the Mute/Cancel button silences the audible alarm for 30
seconds. Replace the ventilator and contact the service center for additional information.
Mitigation/Info: Power System, Power System Needs Repair, Internal Battery Operation, Monitor Battery %
Charge, **Contact Service Center**
2430 Nearly Drained Battery
Alarm triggers when the device detects that there is ≤5 minutes of battery operation remaining and external
power is not connected. The user should immediately seek a source of external power and/or plan to provide
manual ventilation. Attaching external power will immediately clear the alarm though a low priority alarm will
remain until the internal battery has recharged so that the device can provide 30 minutes of operating time.
This will take approximately 5 to 10 minutes. If recharging the battery does not resolve the issue, contact the
service center for additional information.
Mitigation/Info: <5 Minutes Operation, Connect External Power, Ensure Ability to Manually Ventilate, ** Con-
2450 Battery Discharge Fault
Alarm triggers when the battery temperature reaches 70 °C (158 °F) which is 5 °C from its maximum operat-
ing temperature using the internal battery and external power is not connected. When the battery tempera-
ture reaches 75 °C (167 °F) the battery will shut down to prevent failure and the device will sound a high
priority alarm and shutdown. If possible the user should provide a source of external power which will allow
operation to continue at the current and higher temperatures. In addition, the device should be removed from
the soft case which acts as insulation. Shading the patient and ventilator from direct sunlight may also help
reduce the battery temperature.
Mitigation/Info: Battery Within 5 °C of High Limit, Remove Padded Case, Ensure External Power Available,
Ensure Ability to Manually Ventilate, **Move To Cooler Location**
2455 Battery Fault
Alarm triggers when the device is not able to communicate with the internal battery. When this occurs the
device does not know the current charge of the battery and operation could stop at any time. To continue
operation and the user should connect external power and ensure the ability to manually ventilate the patient.
When external power is connected the alarm priority decreases to Low Priority, replace the ventilator and
contact the service center.
Mitigation/Info: Battery Communication, Connect External Power, Ensure Ability to Manually Ventilate
Patient , **Contact Service Center**
906-0731-01-05 Rev. C ZOLL Ventilator Operator's Guide 5-17