Stephan EVETR, Instructions For Use Manual, Page: 202 / 254

10 Troubleshooting
202 GA-070T-0518V2.7-HAO-EN

Fritz Stephan GmbH
No CO
2
sampling line MP
TA  Sampling line not
connected  Connect the sampling
line
CO
2
sensor zeroing
required
MP
TA  CO
2
calibration
failed
 Repeat CO
2
calibration
 Check the CO
2
adapter
and clean if necessary
 Replace the CO
2
adapter,
if necessary
 Replace the CO
2
sensor,
if necessary
CO
2
sensor reinsert MP
TA  CO
2
measurement
faulty
 Check the CO
2
sensor
 Reinsert the CO
2
sensor
EtCO
2
high MP
PA  Measured EtCO
2
above the upper
limit setting
 Check the patient's
condition
 Check the EtCO
2
upper
limit and adjust if
necessary
 Check the ventilation
settings
 Calibrate the CO
2
sensor,
if necessary
 Clean the CO
2
sensor/
cuvette, if necessary
EtCO
2
low MP
PA

Measured EtCO
2
below the lower
limit setting

Check the patient's
condition

Check the EtCO
2
lower
limit and adjust if
necessary

Check the ventilation
settings

Calibrate the CO
2
sensor,
if necessary
 Clean the CO
2
sensor/
cuvette, if necessary
CO
2
sensor error
MP
TA  CO
2
sensor is not
detected
 CO
2
sensor or
adapter
contaminated.
 CO
2
sensor possibly
incorrectly attached
to the cuvette
 Check the CO
2
sensor
 Replace the CO
2
sensor
if necessary
 Use external CO
2
monitoring if necessary