11-8 Passport 12/Passport 8 Operator’s Manual
Symptoms Possible Cause Correction Action
No SpO
2
waveform Waveform not selected to display Switch the SpO
2
monitoring function on as
described in 3.12.1 Switching the Parameters
On/Off.
Cable or sensor not plugged in Check that the cable is properly connected and
sensor securely applied.
Low amplitude SpO
2
signal SpO
2
sensor on same limb as cuff Check that the sensor is properly applied. Change
the application site if necessary.
Patient has poor perfusion Change the application site.