5
5
This last switch setting,
R/M,
for
“Reserve” or “Manual”
provides the maximum oxygen
flow regardless of altitude. The pulse duration does not vary with altitude.
Flow start:
All altitudes
Use with:
Cannula or face mask
Flow amount
: Maximum
Altitude Compensating?
: No
The MH EDS-O2D1 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-O2D1 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
Altitude Compensating?
: Yes
D MODES: “Day” or “Delayed”
F MODES: “Face Mask”
The
F
mode settings
(F5, F10, F15, and F20)
are called the
“Face mask”
settings.
They supplement the standard oxygen flow with a richer flow by adding approximately the
selected number of feet (in thousands) to the MH EDS-O2D1’s perceived altitude.
Flow start:
All altitudes
Use with:
Cannula or face mask
Flow amount:
Altitude Compensating?:
Yes
Enriched: 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.
N
OFF
R/M
The MH EDS-O2D1 has three main modes of
user controlled operation:
1. Fully-Automatic (D5, D10)
2. Semi-Automatic (N and F modes)
3. Manual (R/M)
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 altitude than when the barometric pressure is high.
Flow start:
D5--5,000 ft., D10--10,000 ft.
Use with:
Cannula
Flow amount:
Standard
Altitude Compensating?:
Yes
D5
Advance
(+)
Push Button
Reverse
(-)
Push Button
Switch as seen in the
”OFF” setting
Control switch settings
F15
NOTE: The N and D modes are designed to provide the amount of oxygen needed by an aver
-
age size 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. In all modes (except R/M), the O2D1 provides a pulse of oxygen
which increases with altitude, i.e., it is altitude compensating.
R/M: “Reserve/Manual”
