Terumo CDI 550, Operator'S Manual

Page: 94 / 173

troubleshooting chapter 9 9-9
Message/Problem Meaning and Corrective Action
CO
2
sensor air
equilibration error
on: Arterial PCO
2
(and/or Venous PCO
2
)
Replace sensor(s) and
repeat calibration.
The monitor has detected a very low CO
2
level in the
sensors. This could indicate that the sensor foil pack-
age had a leak in it, or that the sensor was exposed
to room air (or out of the foil pouch) for greater than
24 hours. If the sensor has been exposed to room
air for greater than 24 hours, discard that sensor
and repeat calibration with a fresh sensor. If the foil
pouch has a leak in it, please keep the foil pouch and
sensor and contact Terumo Customer Administration
for instructions.
Sensor intensity error
on:_________
Replace sensor(s) and
repeat calibration.
The specific microsensors failing the calibration
intensity range check appear in the blank. This
includes one or more of the following: arterial pH,
PCO
2
, PO
2
, K
+
; venous pH, PCO
2
, PO
2
, K
+
. Make
sure the sensor(s) are fully and properly engaged
with the cable-head(s). If the problem persists, you
will need to replace the failing sensor(s) and repeat
the calibration. Keep the failed sensor(s), along with
the printed failed calibration results, and contact your
Terumo Technical Service representative. You have
the option of substituting default calibration values for
the failed microsensors by pressing the Cancel (X)
key.
Note:
If you are calibrating both arterial and venous
BPMs and only one side fails, the passing side will
retain its new calibration data. If you decide to con-
tinue use without replacing the failed sensor, default
calibration data will be applied to the failed sensor
(only). If you choose to use the same sensor and
factory default values without correcting the cause of
the failure, be aware that the failed microsensor may
not reflect accurate values. In this case, it is recom-
mended that you return to the configuration selection
screen and exclude the failed sensor/BPM from use.
Note: Most calibration failures will allow continued use of the system without suc-
cessful completion of the calibration process. Continued use will then occur with the
default calibration values, although a current tonometered gas calibration is always
recommended. See Chapter 5 for more detail.