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To calibrate the fl ow sensor, do as follows:
1.Before calibration, ensure that the supply gas pressure is normal.
2.Turn all fl owmeter controls to 0. Turn off all
fresh gas inputs.
3.Make sure that the bag/mechanical ventilation switch is set to the
position.
4.Remove the folding bag from the bellows and reinstall the bellows housing.
5.Plug the Y piece into the leak test plug to close the breathing system.
7.
Make sure that the system is Standby. If not, press the
key and then select
[Ok] from the pop-up menu to enter standby status.
8.Select the [Maintenance] shortcut key and then select [Flow Sensor Cal. >>]
to open the [Flow Sensor Cal.] menu. Select [Start] from the menu to start to
calibrate the fl ow sensor. The screen prompts [Calibrating].
9.During calibration, if you select [Stop], calibration is stopped. Then the
message [Calibration Stopped! Calibration is unfi nished.] is displayed. This
indicates invalid calibration instead of calibration failure.
10.After a successful calibration, the screen shows [Calibration Completed!].
Otherwise, the message [Calibration Failure! Please try again.] is displayed. In
this case, you need to do the calibration again.
Flow Sensor Calibration
NOTE
：
Do not perform calibration while the unit is connected to a patient.
During calibration, do not operate the pneumatic parts. Do not move or press
the breathing tubes especially.
During calibration, the drive gas pressure must be kept above 0.3 MPa.
Otherwise calibration failure may result.
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