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12
External Mount
1. To install the external nasal cannula mounting clip,
loosen the microphone knurled knob on the helmet. Slip
the clip over the post behind the knob. Retighten knob and
adjust the clip as needed (Fig. 15).
2. To mount the nasal cannula, align the interface of the
nasal cannula and the clip with the nose piece to the front,
and press tightly until it snaps into place (Fig. 16).
3. After mounting the nasal cannula, ensure the 90° fitting
is pointing down and out of the rear of the helmet (Fig. 17).
4. To remove the nasal cannula, grasp the nasal cannula
firmly on one side of the clip and pull it outwards, away
from the helmet.
5. Prior to donning the helmet, insert the open end of the
coiled hose into the 90° fitting on the nasal cannula. Push
the hose into the 90° fitting until it stops (Fig. 18).
Use only the cannula supplied with PHODS as other
cannula's may not work properly with the OPC.
PHODS User's Manual
Figure 15
Figure 16
Figure 17
Figure 18
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