Covidien Puritan Bennett 560 User Manual page 101

Internal Battery
Figure 6-1. Internal Battery Indicator
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A loss of external supply alarm is activated.
If ventilation is stopped, the internal battery reserve capacity is displayed as a percentage of battery charge.
Refer to Figure 6-2.
Figure 6-2. Battery Reserve Capacity as a Percentage
If the ventilator is running, the internal battery reserve is momentarily displayed as a percentage. Then, after
the ventilator calculates the battery time remaining (which takes about two minutes, 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). Refer to Figure 6-3.
Figure 6-3. Battery Reserve Capacity in Hours and Minutes
The "LOW BATTERY" and "EMPTY BATTERY" alarms (refer to chapter 3, "Alarms and Troubleshooting") are
triggered when the internal battery reserve is reduced.
User's Manual 6-3