User's Manual
Operator’s Manual ZM-520PA/521PA/530PA/531PA 75
Problem
Possible Cause Action
The heart rate of a
patient who is using
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is unstable on the
receiving monitor.
Pacing pulse detection is turned
ON on the receiving monitor.
Turn OFF the pacing pulse detection
on the receiving monitor.
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is displayed.
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set to OFF.
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Respiration
waveform
measurement is
unstable.
The gel on the electrode is dried
out.
Replace the electrode with a new one.
The gel on the electrode is
coming off.
No respiration rate is
displayed.
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is set to OFF.
If respiration monitoring is necessary,
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SpO
2
Problem
Possible Cause Action
SpO
2
data is unstable
and not reliable.
The probe size is not appropriate
for the patient.
Use the appropriate probe for the
patient.
Probe attachment condition
is poor. The probe is partly
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light is entering the probe.
Firmly attach the probe according to
the procedure in the probe operator’s
manual.
Measurement site is dirty. Patient
is wearing nail polish.
Remove dirt and nail polish.
The probe is attached to the
same limb that is used for NIBP
measurement.
Attach the probe to the opposite limb.
Avoid a site where blood circulation
condition changes greatly.