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Operation
Calibrating
Calibrating
The last calibration/zeroing values remain stored until the
next calibration/zero calibration, even when the machine
is switched off.
Calibration of the pressure sensors for measuring the
airway pressure is automatic.
There is an automatic calibration of flow and O2 sensor
daily.
Manual calibration of the flow sensor can be performed
at any time, even during ventilation.
Manual calibration of the O2 sensor can be performed at
any time, even during ventilation. The applied O2 concen-
tration is not affected by calibration.
The calibration of the CO2 sensor can be checked during
ventilation.
Calibrating the O2 sensor
– Before operation, during the device check.
– After replacing the O2 sensor
(wait for the 15-minute warm-up time of the O2 sensor).
– If the measured value and set value deviate from each
other by more than 2 Vol.%.
The O2 sensor can be calibrated during ventilation.
Start calibration:
● Press »Calibration« key.
Display (example):
● Touch the »O2« screen key.
The »LED« in the screen key changes colour to
yellow.
Message in the help line at the bottom of the screen:
O2 calibration
After calibration is complete, the yellow »LED« in the
screen key goes out.
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