Disassembly
User Manual 4-11
DMR V4C 3.3 (User Manual) V-4 06-May-2022
Caution:
The V4C-O2E Oxygen Mixer is rated for 20-80 psi (138-551 kPa) oxygen sources. Using higher
or lower pressure oxygen sources can interfere with the operation of the V4C-O2E Oxygen
Mixer.
Note:
Oxygen delivery to the V4C-O2E Oxygen Mixer is initiated automatically when the ventilator enters an
active ventilation mode. Oxygen flow is terminated when the ventilator is not actively ventilating or is
powered off.
Note:
Ensure that the oxygen hose used has the correct connector type for the oxygen supply being used.
DISS connection types are common in Canada. British Standard are common in South Asia.
4.2 Disassembly
WARNING:
When disconnecting the oxygen supply hose, or at any other time, do not disconnect the Oxygen
Mixer's oxygen inlet module (See Section 2.7, Specifications) or the fittings that accompany it.
These are critical components which assure the safe use of the Oxygen Mixer and must remain on
the device at all times, including storage. For safe disassembly see instructions in Section 4.2,
Disassembly.
WARNING:
It is recommended to store the V4C-O2E Oxygen Mixer attached to the compatible ventilator and
with the air connection tubing attached (this is to prevent dust from entering the gas pathway). If
the V4C-O2E Oxygen Mixer is stored without the ventilator, it is recommended that it be stored in
a bag or a box (preferably its original packaging) to ensure no dust or debris enter and
contaminate the mixer.
1. Ensure the ventilator is OFF and disconnected from the patient prior to disassembly.
2. Disconnect the oxygen hose from the oxygen supply, ensuring standard practice for the oxygen
source are followed.
Caution:
Do not remove the oxygen inlet module or its fitting from the back of the V4C-O2E Oxygen
Mixer. The oxygen inlet module must remain on the Oxygen Mixer at all times, including in
storage. It should not be removed under any circumstances.
3. Disconnect the electrical connecting cable from the ventilator.
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