Nellcor OXIMAX N-600X Series Service Manual page 52

Setting Up the Oximeter
Power is supplied to the OxiMax N-600x pulse oximeter either from an AC
connection (100-120 or 200-240 VAC) or from a 6-volt, 4 ampere-hour battery. The
oximeter internal battery can be used to power the oximeter during transport or
when AC power is not available. The transition between power sources is invisible to
the user, from AC power to battery power or from battery power to AC power. A new,
fully charged battery provides approximately seven hours of monitoring time under
certain conditions.
•
Pulse simulator set for 200 bpm, high light and low modulation
•
No audible alarms sound
•
No analog or serial output devices are attached to the oximeter, including serial data,
analog output, and nurse call output
•
Default display brightness setting
To fully charge the battery
Caution
To fully recharge a low or fully-depleted battery, connect the oximeter to an AC power outlet.
Charge the battery for at least eight hours with the oximeter turned off or twelve hours with
the oximeter turned on. Replace the battery if fewer than four bars are lit after fully charging
the battery. Recharge the battery at least every three months, allowing the full charge time if
it is the first recharge in several weeks.
1. Connect the oximeter to an AC power source. The oximeter will not power up
without connection to AC power.
2. Verify the oximeter is off and the AC Power/Battery Charging indicator is lit. On AC
power up, the battery fuel gauge shows empty. The oximeter operates on AC
power while the battery is charging. When the oximeter is fully charged, all four
bars are lit on the indicator.
3. Until the battery is recharged, the message, "UNIT WILL SHUT DOWN IF AC
POWER IS LOST" appears. Press the ALARM SILENCE key twice to remove the
message from the screen before the oximeter can be used for patient monitoring.
The oximeter is now operational.
Caution
Should a low battery alarm sound, connect the oximeter to an AC power source and then
clear the alarm by pressing the ALARM SILENCE key. If the oximeter is operated on an AC
power source with a depleted battery and AC power is subsequently lost, the oximeter will
shut down immediately.
When all of the following conditions are present for 15 minutes, the N-600x pulse
oximeter automatically shuts down.
•
The oximeter is running on battery power.
•
No keys have been pressed.
•
No pulse has been detected. If a patient is not connected to the OxiMax pulse oximetry
sensor or the sensor is disconnected from the oximeter, the oximeter cannot detect data.
•
No alarms are present, other than low battery or a non-correctable error.
52
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Service Manual