Operating Procedures
5-8 User Manual
DMR V4C 3.3 (User Manual) V-4 06-May-2022
appropriate setting of the High and Low FiO
2
alarms is required to ensure that the user is
alerted should such a change occur.
5.3 Stopping Ventilation While Using the V4C-O2E Oxygen
Mixer
WARNING:
Turn off or disconnect oxygen supply when the V4C-O2E Oxygen Mixer is not in use.
1. Confirm that a patient is not connected to the compatible ventilator.
2. Stop ventilation as per the compatible ventilator's manual.
5.4 Using the Compatible Ventilator Without the V4C-O2E
Oxygen Mixer
The compatible ventilator can be used without removing it from the Oxygen Mixer's handles. To
do so follow the steps below.
1. Disconnect the oxygen hose from the oxygen source.
2. Disconnect the gas connection tube and adapter from the compatible ventilator. Optionally, discon-
nect the gas connection tube and adapter from the Oxygen Mixer and store, ensuring the tube is prop-
erly protected from dust or contaminant ingress in storage.
3. Install an air intake filter on the back of the ventilator per its manual.
4. Disconnect the Oxygen Mixer's electrical connecting cable from the compatible ventilator.
5. Optionally remove the electrical connecting cable from the Oxygen Mixer and store.
6. Follow the compatible ventilator's manual to start ventilation, including running all start-up checks
and tests, as well as any needed calibrations.
Caution:
Leaving the Oxygen Mixer electrically connected to a ventilator in battery mode, while not
connected to an oxygen source may impact the ventilator's battery level.
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