GS corpuls3 - Page 271

User Manual corpuls
3
Procedure in case of malfunctions
ENG - Version 2.1 – P/N 04130.2 259
Malfunction Troubleshooting Explanation/corrective action
Oral expiratory CO
2
is
low or not detected
even though the YG-
121T or YG-122T
nasal adapter is
attached
Oral breath collector is too
far from the lip.
 The expiratory CO2 cannot be effectively
detected when the oral breath collector is
too far from the patient’s lip.
 Adjust the angle of the oral breath
collector and keep the oral breath
collector no less than 1 cm from the lower
lip.
cap-ONE is attached to a
patient who has a deformed
mouth and exhales CO
2
from the corner of the
mouth.
The oral breath collector cannot accumulate
sufficient expiratory CO
2
so the expiratory
CO
2
may be low or not detected.
Sensor comes off
easily with body
movement.
Sensor is not properly
attached to the patient as
shown in the operator's
manual.
• Hook the sensor cables over both ears
and slide the adjustment ring towards the
patient's chin.
• Attach the nasal adapter to the nose with
the provided surgical tape.
Sensor cable cannot be
hooked over the ears.
Attach the sensor cables to both cheeks (if
possible, on the cheek bones) with the
provided surgical tape.
Surgical tape for fixing the
nasal adapter cannot be
attached on the nose.
Wrap the surgical tape around both sides of
the cable near the nose, and attach the
cable on the cheek bone with the surgical
tape.
Distorted capnogram
when using a nasal
oxygen cannula.
Nasal oxygen cannula is
inserted into the patient's
nostrils.

Oxygen is directly administered into the
patient's nostrils and expiratory CO
2
accumulates in the nasal tube which may
distort the capnogram.
 Attach the nasal oxygen cannula as
shown in the operator's manual.
Oxygen flow rate is too
high.

If the oxygen flow is too high it affects the
expiratory CO
2
and distorts the
capnogram, especially at the end of
expiration at which the expired volume
decreases.
 Set the oxygen flow rate lower than 5
L/min. if there is no contraindication from
a medical point of view.
Patient's ventilatory volume
is extremely low.
The expiratory CO
2
is easily affected by
oxygen and the capnogram may become
inaccurate.