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Battery Operation
should be connected to a wall outlet in order to prevent a loss of patient
monitoring.
When the battery power is too low to continue normal operation, the PPM3
display will go blank and a constant low-grade tone will be generated.
When the PPM3 is reconnected to the wall power it will begin recharging.
Battery charging occurs regardless of whether the PPM3 is powered on. For
every hour of battery use, it takes about one hour to recharge the battery. A fully
depleted battery takes about 5 hours to fully recharge.
The green LED on the back of the PPM3 indicates that the battery is being
charged. To determine when the battery is full charged, disconnect the battery
from the wall power and check the battery icon on the PPM3 Main Screen (shown
above).
The toggle switch on the back of the PPM3 allows you to turn the PPM3 on and
off.
See the Maintenance chapter for details on how to have the battery replaced.
WARNING – Consult the safety instructions at the front of this
manual regarding the proper use and disposal of the battery.
16-2
N i g h t i n g a l e P P M 3 U s e r ' s G u i d e
April 2019
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