Battery Operation - Nellcor OxiMax N-600x Service Manual

Battery Operation

O M N-600x Service Manual
XI AX
The N-600x has an internal battery that can be used to power the monitor during
transport or when AC power is not available. A new, fully-charged battery
provides at least seven hours of monitoring time under the following conditions:
• No audible alarms sound
• No analog or serial output devices are attached to the N-600x
• Default display brightness setting
The monitor cannot be used when the battery is depleted unless the monitor is
connected to an AC power source. A warning message displays and must be
cleared by pressing the ALARM SILENCE button twice before the monitor can
be used for patient monitoring.
The pleth and blip displays include the Battery Fuel Gauge indicator that shows
the remaining charge (operating hours). When the monitor is fully-charged, all
four N-600x bars are lit on the indicator.
Note: After three months of storage, the battery may lose its charge. The N-600x
will not power up until the AC power is established. On AC power up, the
battery fuel gauge shows empty. The N-600x operates on AC power while
the battery is charging. Until the battery is recharged, the message, "UNIT
WILL SHUT DOWN IF AC POWER IS LOST" appears. The monitor is
now operational. Press the ALARM SILENCE button twice to remove
the message from the screen.
Caution: If the battery has been in storage for longer than six months, or if
the battery does not fully recharge, the battery should be replaced. After the
battery has been replaced and a new battery had been charged, an "EEE 575
Trends Lost" message appears when the N-600x is turned on. Turn the
N-600x off and wait three seconds. Then turn the monitor on again. After the
extended power-on self-test, the N-600x runs on AC or battery power.
Caution: To fully recharge the monitor, it may take up to eight hours if the
monitor is turned off or 12 hours if the monitor is turned on. Connect the
monitor to an AC power outlet to charge a low or fully-depleted battery.
Caution: The battery terminal clips may loosen after repeated insertions.
After replacing the battery, check the battery terminal clips for secure fit and
tighten if necessary (needle nose pliers may be used).
WARNING: If the monitor is operating on an AC power source with a fully-
depleted battery and the AC power is subsequently lost, the monitor will shut
down immediately.
Routine Maintenance
13