ZOLL AEV Operator's Manual page 104

A
LARMS
3441 External Power Fault
Alarm triggers when the supplied DC power is >33 VDC. When this occurs the device automatically switches
to operation using the internal battery. If the supplied voltage drops to <30 VDC the device automatically
returns to operation using external power. If the external power source is known to be good then the AC/DC
Power Supply may be faulty and need replacement. Contact the service center for additional information.
Mitigation/Info: External Voltage Too High, Internal Battery Operation, Check/Replace Power Supply
3442 External Power Fault
Alarm triggers when the external power supply has insufficient current. When this occurs the device automati-
cally switches to operation using the internal battery. If the external power source is known to be good then the
AC/DC Power Supply may be faulty and need replacement. Contact the service center for additional informa-
tion.
Mitigation/Info: External Power Insufficient Current, Internal Battery Operation, Check/Replace Power Supply,
**Remove DC Connection**
3442 External Power Fault
Alarm triggers when the voltage polarity is reversed when the device is attached to an external DC source.
When this occurs the device automatically switches to operation using the internal battery. This condition is
most likely caused by a faulty DC source. The user should seek an alternate power source.
Mitigation/Info: DC Voltage Reversed, Internal Battery Operation, Disconnect Power Source
**Replace Power Source**
3450 Battery Discharge Fault
Alarm triggers when the battery temperature reaches 70 °C (158 °F) which is 5 °C from its maximum operating
temperature and external power is connected. When the battery temperature reaches 75 °C (167 °F) the bat-
tery will shut down to prevent failure. When this occurs the device will continue operation using external power
only. The device should be removed from the padded 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, Continue External Power Operation,
Shade Patient and Ventilator, **Move To Cooler Location**
3451 Battery Discharge Fault
Alarm triggers when the battery temperature reaches ≥75 °C (167 °F) and external power is connected. Dis-
charging the battery beyond this temperature could destroy the battery and damage the device. During the
alarm condition the device will continue operation using external power. The device should be removed from
the padded case which acts as insulation. Shading the patient and ventilator from direct sunlight may also help
reduce the battery temperature.
Mitigation/Info: Battery Too Hot to Discharge, Do NOT Remove External Power!, Remove Padded Case,
Ensure Ability to Manually Ventilate Patient, **Move To Cooler Location**
3452 Battery Charging Fault
Alarm triggers when the battery temperature is >45 °C (122 °F). Charging the battery above this temperature
could destroy the battery and damage the device. During the alarm condition the device continues to operate
using external power and if external power is lost the device will operate using internal battery power. The
device should be removed from the padded case which acts as insulation. Shading the patient and ventilator
from direct sunlight may also help reduce the battery temperature.
Mitigation/Info: High Battery Temperature, Battery Does Not Charge When It is Too Hot, Ensure External
Power Available, Remove Padded Case, Shade Patient and Ventilator, **Move To Cooler Location**
3453 Battery Charging Fault
Alarm triggers when the battery temperature is ≤0 °C (32 °F). Charging the battery below this temperature
could destroy the battery and damage the device. During the alarm condition the device continues to operate
using external power and if external power is lost the device will operate using internal battery power. The pad-
ded case should be used because it provides insulation.
Mitigation/Info: Battery Too Cold To Charge, Ensure External Power Available, Use Padded Case
**Move to Warmer Location**
5-24 www.zoll.com 906-0731-01-05 Rev. C