Internal Battery
6-4
Puritan Bennett 540™ Ventilator User’s Manual
depending on the power consumption of the ventilator), the internal battery reserve is then displayed
in hours and minutes (rounded to the nearest fifteen minutes). See the following graphic.
The “LOW BATTERY“ and “EMPTY BATTERY“ alarms (refer to chapter
3, “Alarms and Troubleshooting”
)
are triggered when the internal battery reserve is reduced.
From the time that an “EMPTY BATTERY“ alarm is activated, if no external supply is connected to the
ventilator, other alarms may be triggered due to insufficient supply voltage.
In the final discharge phase, the “EMPTY BATTERY” alarm will become continuous, and ventilation
may be interrupted at any time during this phase.
6.3
Testing the Battery
Your ventilator continuously and automatically checks the state of the internal battery, even when the
battery is not used as the main source of energy. The “BATT FAULT1 CALL SERVICE“ alarm is activated
whenever a problem is detected in the battery or the charger.
However, on a monthly basis you should disconnect the ventilator from the external power supply to
check the integrity of the connections linking the internal battery to other ventilator components.
6.4
Recharging the Battery
In the event that the battery charge level is considered insufficient, as per the reserve capacity display,
recharge of the internal battery is necessary. In general, it is recommended that the ventilator be
WARNING
•
Due to its limited internal battery’s reserve capacity, the ventilator should only be operated
occasionally while powered by its internal battery. Ensure that the internal battery never becomes fully
discharged.
•
When the “LOW BATTERY“ alarm is triggered, immediately connect the ventilator to an AC power
supply to maintain ventilation and recharge the internal battery.
Note:
The “EMPTY BATTERY” alarm symbol may disappear shortly before the ventilator completely stops, but it always
triggers a final, continuous alarm.
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