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This last switch setting,
R/M,
for
“Reserve” or “Manual”
provides the maximum
pulsed-oxygen flow regardless of altitude.
Flow start:
All altitudes
Use with:
Cannula or face mask
Flow amount
: Maximum Pulse
Altitude Compensating?
: No
R/M: “Reserve/Manual”
The MH EDS-O2D2 unit is controlled by two push button control switches. A stop inside
the selector switch prevents inadvertently turning the unit off in flight.
MODE CONTROL SWITCH SETTINGS AND MODES OF OPERATION
N MODE: “Night” or “Now”
At this setting the MH EDS-O2D2 will immediately start the standard oxygen flow pro-
viding 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 MH EDS-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”
Control switch settings
F MODES: “Floor” or “Face Mask”
The
F
mode settings
(F5, F10, F15, and F20)
are called the “
Floor”
or
“Face mask”
settings. They supplement the standard oxygen flow by adding approximately the
selected number of feet (in thousands) to the MH EDS-O2D2’s perceived altitude.
Flow start:
All altitudes
Use with:
Cannula or face mask
Flow amount:
Enriched:
Altitude Compensating?:
Yes
F5 =S5,000 ft
F10=S10,000 ft
F15=S15,000 ft.
F20=S20,000 ft.
Example: If you are at a pressure altitude of 5,000 ft. and select the F10 setting you
will receive the effective flow rate of 5,000 + 10,000 = 15,000 ft. The “F” modes are
useful for people for whom the standard oxygen supply does not achieve the desired
blood oxygen saturation or for those who prefer to use a face mask rather than a
cannula.
F15
N
OFF
R/M
D10
Advance
(+)
Push Button
Reverse
(-)
Push Button
The MH EDS-O2D2 has three main modes of user controlled operation:
1. Fully-Automatic (D5, D10)
2. Semi-Automatic (N and F modes)
3. Manual (R/M)
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 MH EDS-
O2D2 mode applies to both users and should be set to accommodate the user with the
highest oxygen need. In all modes except R/M, the O2D2 provides a pulse of oxygen which
increases with altitude, I.e., it is altitude compensating.
Switch as seen in the
”OFF” setting
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