12-5
NOTE
In case of calibration failure, check for relevant malfunctioning alarm and then
troubleshoot it. If it still fails or great measurement error occurs after
troubleshooting, replace the flow sensor and repeat the above operations. If the
measurement error is still significant, contact the authorized service personnel.
12.5 Oxygen Concentration Calibration
NOTE
Do not perform oxygen concentration calibration while the unit is connected to a
patient.
Do not perform oxygen concentration calibration when low-pressure oxygen source
is used.
Ensure that the system is Standby. If not, push the [Standby] key to enter standby
screen.
Calibrate the oxygen concentration when the measured oxygen concentration has a great
deviation from the setting, or when the O
2
sensor is replaced.
Follow these steps to calibrate the oxygen concentration:
1. Ensure high-pressure oxygen source is connected.
2. Press the [Setup] key. Select [Calibrate] and select [O
2
Calibration]. Select [Start] on
the right side to start Flow Calibration. The [Calibrating] prompt message is displayed.
3. During the calibration, if you select [Stop], the ongoing calibration will stop and the
message [Calibration Stopped! Calibration is unfinished.] is displayed.
4. After a successful calibration, the screen shows [Calibration Completed!]. Otherwise,
the message indicating calibration failure is displayed. In this case, you need to do the
calibration again.
NOTE
In case of calibration failure, check for relevant malfunctioning alarm and then
troubleshoot it. Then do the calibration again. 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.
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