Dräger Savina 300, Техническая документация инструкция, Страница: 46 / 166

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Savina 300
Maintenance instructions
Replacing the O2 sensors
Calibrating the O2 sensors
in „LPO“ mode
1. In the situations listed below the O2 sensors cannot be calibrated in
„LPO“ mode:
a) During the 10-minute warm-up phase after switching on the
Savina 300
b) Up to one hour after the Savina 300 has been subjected to a major
temperature change, such as being transported from a cold room to a
heated room or due to extreme ventilation settings.
FiO2 measurement is possible during this time as long as no relevant alarm
is indicated.
2. Press the „Sensors/Parameters“ softkey.
3. Press the O2 calibration „Start“ softkey and confirm with the rotary knob.
4. When prompted by the Savina 300, disconnect the O2 concentrator and
confirm with the rotary knob.
The message „Disconnect patient“ is displayed.
5. Detach the inspiratory tube from the inspiratory socket and, if necessary,
continue ventilation with an independent ventilator.
The display indicates „O2 calibration in progress“. The Savina 300 calibrates
the O2 sensors. During calibration the alarms which would normally occur
due to the disconnection and the changed O2 concentration are disabled.
After about 60 seconds the prompt „Reconnect patient“ is displayed.
6. Immediately fit the inspiratory tube on the inspiratory socket.
If the display indicates „O2 calibration OK“, calibration is complete.
NOTE
In „LPO“ mode the O2 sensors are calibrated with ambient air. The O2
measurement accuracy is reduced as a result. If high O2 measurement
accuracy is required, the O2 sensors must be calibrated in „HPO“ mode.
NOTE
If the patient has not been reconnected after 30 seconds, Savina 300 starts
ventilating again in the preset ventilation mode and all alarms are enabled
again.
NOTE
If the message „FiO2 measurement failed“ is displayed after calibrating, the
O2 sensors must be replaced – see „Replacing the O2 sensors“.