Philips Efficia CM Series - Mainstream Etco Measurement Problems; Ecg;Respiration Measurement Problems

Troubleshooting
Efficia CM Series Repair Guide 3-11
Troubleshooting Tables
Mainstream etCO
2
Measurement Problems
ECG/Respiration Measurement Problems
CO
2
measurements are
unreliable.
The CO
2
sampling line is bent
or twisted.
Ensure that the sampling line is
straight.
The module is not zeroed. Perform a zero. See the Efficia
CM Series Patient Monitors
Instructions for Use.
A problem external to the
monitor occurred.
Ensure that all external CO
2
reading requirements are met.
See the Efficia CM Series
Patient Monitors Instructions
for Use.
The CO
2
board is not
calibrated.
Calibrate the CO
2
board. See
“Sidestream CO2 Calibration
Test” on page 2-13.
Symptom Possible Cause Action
Symptom Possible Cause Action
CO
2
measurements are not
displayed.
The CO
2
module is initializing. Wait until initialization is
complete.
The CO
2
sensor malfunctioned. Replace the CO
2
sensor.
The main board malfunctioned. Replace the main board. See
“Replacing the Main Board” on
page 4-27.
CO
2
measurements are
unreliable.
The module is not zeroed. Perform a zero. See the Efficia
CM Series Patient Monitors
Instructions for Use.
A problem external to the
monitor occurred.
Ensure that all external CO
2
reading requirements are met.
See the Efficia CM Series
Patient Monitors Instructions
for Use.
The CO
2
sensor is not accurate. Calibrate the CO
2
sensor. See
“Mainstream CO2 Accuracy
Test” on page 2-20.
Symptom Possible Cause Action
ECG measurements are not
displayed.
The ECG leads are off. Ensure that the leads are
connected.
The ECG cable is broken. Ensure that the cable is in
good working order.
The ECG 3/5/10 wire is not
configured correctly.
Correct the ECG configuration.