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The O2D2 unit is controlled by the Rotary Mode-Selector Switch
ROTARY MODE-SELECTOR SWITCH SETTINGS AND MODES OF OPERATION
N MODE: “Night” or “Now”
At this setting the O2D2 will immediately start the standard oxygen flow providing
pulses of oxygen appropriate for an average healthy person using a cannula.
Flow start:
All altitudes
Use with:
Cannula
Flow amount:
Standard Pulse
Altitude Compensating?
: Yes
The
D5
setting will cause the O2D2 unit to delay oxygen flow until it senses a pressure
altitude of 5,000 ft. and above. The
D10
setting delays oxygen flow until 10,000 ft. and
above. NOTE: When the barometric pressure is low, it will start operation
at a slightly
lower flight altitude
than when the barometric pressure is high.
Flow start:
D5--5,000 ft., D10--10,000 ft.
Use with:
Cannula
Flow amount:
Standard Pulse
Altitude Compensating?:
Yes
D MODES: “Day” or “Delayed”
Mode-Selector
Switch Settings
F MODES: “Fat” or “Face Mask”
The O2D2 has three main modes of user controlled operation:
1. Semi-Automatic (N Mode)
2. Fully-Automatic (D5, D10)
3. Semi-Automatic (F Modes)
NOTE:
The N and D modes are designed to provide the amount of oxygen needed by an
average size and healthy person using a cannula at the given altitudes; your needs may
be different. To determine whether you are receiving enough oxygen in a particular mode
you will need to use a pulse oximeter (available from Mountain High) to determine your
blood oxygen saturation (goal is 90-100%) at any given altitude. The selected O2D2 mode
applies to both users and should be set to accommodate the user with the highest oxygen
need. In all modes, the O2D2 provides a pulse of oxygen which increases with altitude,
i.e., it is altitude compensating.
Mode-Selector as seen
in the ”OFF” setting
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F settings 1 to 2 are for small Alps face masks.
Settings 2 to 3 are for medium sized Alps face masks.
3 to 4 are for large Alps face masks.
F1=
F2=
F3=
F4=
Small Mask
Medium Mask
Large Mask
NOTE: The F settings are used with the Face Mask or when
requiring an increased oxygen flow with the cannula.
The F-Mode settings augment the amount of oxygen needed to compensate for the ad-
ditional dead-space plenum associated with face masks. They also can be used with the
MH cannula in situations where more oxygen may be required over the normal ‘N’ and ‘D’
settings. Since F-Mode settings are calibrated for use with the MH Alps face masks, only
use the approved MH EDS or ALPS face mask.
Flow start:
All altitudes
Use with:
Cannula or face mask
Flow amount:
Enriched:
Altitude Compensating:
Yes
