User's Manual
Operator’s Manual ZM-940PA/941PA 71
SpO
2
Message Cause Countermeasure
During NIBP
measurement
SpO
2
monitoring is paused for
NIBP measurement.
WaitforNIBPmeasurementtonish.
Detecting body
movement
Considerable body movement.
When the message is displayed frequently,
checkthepatientconditionand,if
necessary, change the attachment site.
The probe is not attached to the
patient properly.
SpO
2
CHECK
PROBE
The probe is not attached to the
patient properly.
Attach the probe to the patient properly.
The probe is not attached at the
appropriate site.
Attach the probe to a site 6 to 14 mm
thick.
Probe is expired. Replace the probe with a new one.
SpO
2
DETECTING
PULSE
Searching for the correct pulse
wave.
Wait until the pulse wave is detected.
The SpO
2
value cannot be
obtained because the waveform
is unstable.
Attach the probe to the patient properly.
The probe is not attached to the
patient properly.
SpO
2
LIGHT
INTERFERENCE
SpO
2
measurement site is under
uorescentlight,surgicallight,
sunlight, etc.
Cover the measurement site with a
blanketorcloth.
SpO
2
PROBE
FAILURE
Probe is expired. Replace the probe with a new one.
Probe is damaged or short-
circuited.
Replace the probe with a new one.
SpO
2
WEAK PULSE
Poor peripheral circulation.
Checkthepatientconditionandchange
the attachment site.
The probe is attached too
tightly and is obstructing the
blood circulation.
Checktheprobeattachmentcondition
and if necessary, reattach the probe.