Prompt Messages Messages
14 - 10 0070- 0-0704-02 Passport V Operating Instructions
14.3.4 Temp Prompt Message
SpO
2
: Interference Patient Movement.
External interference.
Noise detected on 
the pulse signal 
prevents pulse 
discrimination.
Decrease patient 
motion,check sensor.
Contact Technical 
Support.
Masimo/Nellcor
SpO
2
: No Sensor No sensor Apply sensor Masimo/DPM/
Nellcor
SpO
2
: Weak Pulse Low pulse amplitude Check the condition of 
poor perfusion for 
patient.
Contact Technical 
Support.
Nellcor
SpO
2
: Low Signal The SpO
2
 signal is 
too low or too weak.
Check sensor 
placement, move as 
necessary.
Switch limb / Notify 
physician.
Nellcor
SpO
2
: Weak Signal The SpO
2
 signal is 
too low or too weak.
Check patient
Reposition sensor
Change sensor
Masimo
SpO
2
: Check Sensor Possible Faulty 
sensor
Replace Sensor Nellcor
SpO
2
: Motion Patient movement Check patient Nellcor
SpO
2
: Pulse Search Monitor searching 
for pulse.
Sensor just applied
Poor perfusion at 
sensor site.
Check patient.
Reposition sensor.
Masimo/DPM/
Nellcor
ALARM MESSAGE REASON SOLUTION
Temp: Communication Stop As the Temp module 
communication stops, the data 
packets sent by the Temp module 
can not be received.
Contact Technical Support.
Temp: SelfTest Error  Module send out error during 
selftest because of some 
unspecified reasons.
Contact Technical Support.
Temp: Calibration Error A calibration failed. Restart the monitor.
Contact Technical Support.
Temp: Initialization Error During the Temperature module 
power-on,as the Temperature 
module communication 
stops,system fails to 
communicate with module.
Contact Technical Support.
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