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The monitor cannot operate with a fully discharged battery. Before turning on a monitor
whose battery has been completely discharged,
fi
rst plug the monitor into an AC outlet to
charge the battery for a few minutes. The monitor may then be powered on.
A new, fully charged battery will provide the following operating times under each
condition:
Table 4. Operating time in accordance with battery conditions
Type
Conditions
Operating Time
NI-MH
without any measurement and printing at 25°C
10 hours
with an NIBP measurement per 15 minutes,
continuous SpO
2
measurement and no printing
8 hours
5.2 Charging a Low Battery
1. Connect the monitor to AC power in order to charge a low or dead battery.
(see ‘Setting up the Monitor’ section)
Note: A full charge of a depleted Ni-MH battery takes approximately 8 hours while the
monitor is turned off.
5.3 Low Battery Indication
The Battery Indicator
fl
ashes when the remaining battery power is only enough for about
10 minutes of operation. The monitor will also sound an audible alarm. This will inhibit the
monitor from printing. This audible alarm can be silenced by pressing the Alarm silence
button. Connecting the monitor to AC power will terminate the alarm.
A battery status of approximately 3-minutes operation will inhibit the monitor from taking
NIBP in
fl
ation.
After a critical low battery alarm sounds for about 5 seconds, the monitor will automatically
shut down. You should connect the monitor to an AC power source to avoid any loss of
monitor settings and trend data.
Ba
tter
y Oper
ation
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