Troubleshooting Tables
Troubleshooting
3-8 Efficia CM Series Repair Guide
NBP Problems
Symptom Possible Cause Action
The NBP cuff does not inflate. The air tube or cuff is bent or
twisted.
Straighten the tube or cuff.
Air leak in the air tube or cuff. Replace the cuff and ensure
that there is no air leakage in
the tube.
The NBP module
malfunctioned.
Replace the NBP pump
module. See “Removing the
NBP Module” on page 4-18.
NBP measurements are not
displayed.
Wrong cuff size, or incorrect
cuff placement.
Use proper cuff size, ensure
proper cuff placement.
Initial pressure setting is
incorrect.
Specify the correct initial
pressure. For more information,
see the Installation and
Configuration Guide provided
with your monitor.
The air tube is bent or twisted
or there is air leakage in the air
tube or cuff.
Ensure that the tube is straight
and not kinked. Replace the
cuff and ensure that there is no
air leakage in tube.
External problem. For example,
the patient is moving
excessively, shivering, or has
arrhythmias.
Ensure that all external blood
pressure reading requirements
are met. For more information
about measuring NBP, see the
Efficia CM Series Patient
Monitors Instructions for Use.
NBP module error. Replace the NBP module.
NBP measurements are
unreliable.
Wrong cuff size, or incorrect
cuff placement.
Use proper cuff size and
ensure proper cuff placement.
See the Efficia CM Series
Patient Monitors Instructions
for Use.
Initial pressure setting is
incorrect.
Specify the correct initial
pressure. For more information,
see the Efficia CM Series
Patient Monitors Installation
and Configuration Guide.
External problem. For example,
the patient is moving
excessively, shivering, or has
arrhythmias
Ensure that all external blood
pressure reading requirements
are met. For more information
about measuring NBP, see the
Efficia CM Series Patient
Monitors Instructions for Use.
The NBP module needs to be
calibrated.
Recalibrate the NBP module
see “NBP Calibration
Procedure” on page 2-24.
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