P1 Patient Monitor User’s Manual
14-14
inaccurate measurement or other error conditions. The time required for zeroing
will also increase.
When zeroing, do not rely on gas readings.
Nomoline ISA CO
2
module do not require user to manually zeroing, and the user
cannot successfully send the zeroing command to the module. Nomoline ISA CO
2
module will automatically zero when necessary and the sampling tube is not be
inserted.
14.9. Calibration
The monitor has already been calibrated before leaving factory. User can directly
apply it measuring in normal conditions (except for the following three cases). Calibrate
the gain of the sidestream CO
2
module when the following three conditions occur.
After the CO
2
module is used for half a year and one year;
Clinicians doubt the accuracy of readings;
After the latest calibration, atmospheric pressure or height above sea level
varies evidently.
CAUTION:
Recommend that users carry out calibration operations under the guidance of
technical service personnel authorized by the manufacturer. Incorrect
calibration procedures may lead to incorrect readings.
Nomoline ISA CO
2
has been permanently calibrated at the factory and do not
need to be calibrated by the user.
14.10. Exhaust Emission
WARNING:
When using the sidestream/microflow CO
2
measurement on patients who are
receiving or have recently received anesthetics, connect the outlet to a scavenging
system, or to the anesthesia machine/ventilator, to avoid exposing medical staff to
anesthetics.
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