Parameter Menus Operations
2 - 42 0070-10-0666-01 Trio™ Operating Instructions
Nellcor SpO
2
Alarm Limits
NOTE: If the SpO
2
alarm high is set to OFF, the alarm OFF
symbol will display in the SpO
2
parameter tile.
Alarms occurring during the process of SpO
2
measurement include two (2) types:
physiological alarms and technical alarms. Physiological alarms occur when the patient’s
pulse rate or oxygen saturation level is equal to or exceeds set alarm limits. Technical alarms
are any SpO
2
-related alarms, which are not physiological, such as functional failures.
2.4.3.2.2 Nellcor SpO
2
Troubleshooting
PATIENT SIZE
SpO
2
HIGH
ALARM (%)
SpO
2
LOW
ALARM (%)
PR HIGH
ALARM (bpm)
PR LOW
ALARM (bpm)
Adult (ADU) 80 – 100 [OFF] 50 – 99 [85] 60 – 250 [150] 20 – 120 [45]
Pediatric (PED) 80 – 100 [OFF] 50 – 99 [85] 100 – 250 [175] 20 – 150 [70]
* Factory default values shown in brackets.
MESSAGE REASON ACTION
SPO2 SENSOR OFF SpO
2
sensor may be
disconnected from the patient
Place the sensor on the patient.
SPO2 NO SENSOR SpO
2
sensor may be
disconnected from the monitor
or the extension cable
Plug the sensor into the monitor or the
extension cable.
SPO2 PULSE SEARCH Hardware settings are being
adjusted in order to
discriminate a pulse waveform
Wait several seconds for saturation
value to be displayed. If it does not
display, do one of the following:
• Change to site where pulse is
stronger if patient is
vasoconstricted.
• Change or readjust sensor if loose.
SPO2 CHECK
SENSOR
SpO
2
sensor may be defective,
incompatible, or improperly
connected.
Reconnect the same sensor or replace
the sensor.
SPO2
COMMUNICATION
ERROR
The monitor and the SpO
2
modules are not communicating
properly
Power the unit OFF/ON. If problem
persists, notify hospital technician or
Customer Support.
SPO2 BOARD FAULT SpO
2
board is not producing
measurement values.
Power the unit OFF/ON. If problem
persists, notify hospital technician or
Customer Support.
SPO2 MOTION Motion is detected. Decrease patient motion.
SPO2 INIT ERR SpO2 module failure. Notify hospital technician or Customer
Support
SPO2 COMM STOP SpO2 module failure or
communication error.
Notify hospital technician or Customer
Support
SPO2 ALM LMT ERR Functional failure. Notify hospital technician or Customer
Support
PR ALM LMT ERR Functional failure. Notify hospital technician or Customer
Support
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