Nellcor OxiMax N-65 Operator's Manual page 104

Troubleshooting
4. The Pulse Search indicator lights after successful
measurements have been made.
• Check the patient.
• Perfusion may be too low for the monitor to track
the pulse. Test the monitor on another subject.
Change the sensor site. Try another type of sensor.
• Interference due to patient activity may be
preventing the monitor from tracking the pulse.
Keep the patient still, if possible. Verify that the
sensor is securely applied and replace it if
necessary. Change the sensor site.
• The sensor may be too tight, there may be
interference due to ambient light, or the sensor may
be on an extremity with a blood pressure cuff,
arterial catheter, or intravascular line. Reposition
sensor, as necessary.
• Electromagnetic interference may be preventing
the monitor from tracking the pulse. Remove the
source of interference.
5. "Er" followed by a number appears on the
display.
• Disconnect the sensor from the monitor. Restart
the monitor. If error code appears again, record the
number and provide that information to qualified
service personnel or your local Nellcor
representative.
98 O Max N-65 Operator's Manual
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