7-5
NOTE
z In case of calibration failure, check for sensor malfunctioning alarm and then
troubleshoot it if there is. If it still fails or great measurement error occurs after
calibration, select [Defaults] to restore the factory default calibration values. If the
measurement error is still great, replace the flow sensor and repeat the above
operation. If the measurement error is still great, contact your service personnel or
us.
z Do not calibrate the flow sensor when the system is connected to the patient.
7.5 O2 Sensor Calibration
WARNING
z Do not perform calibration while the unit is connected to a patient.
z The O
2
sensor must be calibrated at the same environment pressure at which it will
be used to monitor oxygen delivery in the breathing system. Otherwise, the
measured value may be outside of the stated range.
z Disassemble the O2 sensor before calibrating it. Re-install the O2 sensor after
making sure that there is no water build-up in the O2 sensor and its installation
part.
z The O
2
calibration is not required if no O
2
sensor is configured or used.
7.5.1 21% O2 Calibration
NOTE
z Perform O
2
calibration when the measured value of O
2
concentration has a great
deviation or when the O
2
sensor is replaced.
z The O
2
calibration must be performed when the system is Standby.
z If the calibration fails, check for technical alarm and troubleshoot it if there is.
Then do the calibration again.
z In case of repeated calibration failures, replace the O
2
sensor and do the
calibration again. If it still fails, contact your service personnel or us.
z Obey the relevant stipulations about biohazard when disposing the discarded O
2
sensor. Do not burn it.
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