Trio™ Service Manual
0070-10-0591-01
4 - 13
Repair Information
Troubleshooting
Parameter Failure
MESSAGE/PROBLEM REASON
SOLUTION
No ECG waveform
Poor connection of ECG
electrodes
Use new electrodes to ensure
good contact
No square waveform exists
during CAL self-test
Replace ECG/RESP module
RL electrode is disconnected
Connect RL electrode
ECG/RESP module is damaged
Replace ECG/RESP module
ECG waveform interference or
abnormal ECG waveform
Electrodes are connected
incorrectly
Correctly connect electrodes
There are disconnected or
intermittent electrodes
Remove any electrodes that
are not used
AC power has no grounding
plug
Use grounded power cord
and outlet
ECG filter mode is incorrect
Select appropriate filter mode
ECG/RESP module is damaged
or defective
Replace ECG/RESP module
No RESP waveform or
abnormal RESP waveform
Electrodes are connected
incorrectly
Use RA-LL
(R and F)
electrode, connect correctly
Patient is moving constantly
Keep patient calm
ECG/RESP module is damaged
or defective
Replace ECG/RESP module
TEMP value is incorrect
Temp sensor is poorly
connected
Reconnect TEMP sensor
HR value is inaccurate
ECG waveform intermittent
Check ECG connections and
reconnect
NIBP cuff cannot be inflated
Airway is occluded or has
leakage
Adjust or repair the airway
Blood pressure intermittently
cannot be measured
Cuff becomes loose or patient is
moving
Keep the patient calm. Re-
wrap the cuff correctly and
safely
Blood pressure measurement is
inaccurate
Cuff size does not fit the patient
Use the appropriate size cuff
NIBP module defective
Replace NIBP module
No SpO
2
waveform
SpO
2
Sensor or SpO
2
module
is damaged
Replace the sensor to confirm
the failure
SpO
2
waveform interference
Patient is moving
Keep the patient calm
Ambient light is very intensive
Dim the ambient lighting
SpO
2
value is inaccurate
Dye has been injected into
patient's body
Remove all dyes before
performing measurement