Oximeter Visual Indicators - Nellcor OXIMAX N-600X Series Service Manual

messages from the display. It lights continuously when an audible alarm has been
silenced. It flashes when the alarm silence duration has been set to OFF.
WARNING
Pressing ALARM SILENCE will keep ALL alarms from sounding for the alarm silence
duration period.
WARNING
Should the caregiver silence an SPD alarm, this resets the index that tracks repetitive
patterns of desaturation and silences ALL alarms.
Should the caregiver fail to clear a primary audible alarm within two (2) minutes, a secondary
alarm with a unique pitch sounds.
ADJUST UP Key —Use to increase variable parameters of the oximeter.
ADJUST DOWN Key—Use to decrease variable parameters of the oximeter.
HELP/CONTRAST Key—Use to access the on-screen help or adjust the screen
contrast.
•
Press and release the HELP/CONTRAST softkey to launch on-screen help.
•
Press and hold the HELP/CONTRAST softkey while simultaneously pressing the ADJUST UP and
ADJUST DOWN softkeys to increase or decrease the contrast of the display screen.
Softkey Menu Bar—Use to display the current softkey menu functions.

Oximeter Visual Indicators

AC Power Indicator—Lights continuously when connected to an AC power source
and also shows when the battery is charging. Does not light when the oximeter is
running on the internal battery.
Low Battery Indicator— Lights continuously when 15 or fewer minutes of battery
capacity remain, then flashes when the battery capacity reaches a critically low
condition.
Pulse Search Indicator—Lights continuously prior to initial acquisition of a pulse
signal and during prolonged, challenging monitoring conditions. The pulse search
indicator flashes during a loss-of-pulse signal.
Interference Indicator—Lights whenever the oximeter algorithm detects the
incoming signal quality is degraded. An intermittently lit Interference Indicator is
common during patient monitoring, and indicates the oximeter algorithm is
dynamically adjusting the amount of data required for measuring SpO
Rate. When lit continuously, the oximeter algorithm has extended the amount of
data required for measuring SpO
rapid changes in these values may be reduced.
Note:
Degradation can be caused by ambient light, poor sensor placement, electrical noise,
electro-surgical interference, patient activity, or other causes.
Service Manual
and Pulse Rate. In this case, fidelity in tracking
2
10030881 Rev. B 12-2008
Front Panel
and Pulse
2
17