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RESET/TEST Lever
(spring-loaded to RESET)
Press to test oxygen flow (momentarily) through the regulator (microphone test without pulling the mask out).
Oxygen On Flag
In view when mask is out, indicates that oxygen shut-off valve is open. Flag will disappear when shut-off valve closed. Reset position shuts off supply to mask regulator and blinker unit.
Normal/100% Lever
N provides a mixture
of Ambient air with oxygen on demand.
100% provides 100% oxygen on demand.
PRESS
TO
TEST
AND
RESET
Oxygen Supply Hose Release Levers
Squeeze to unlock container doors, grasp levers and hose and pull to withdraw mask.
OXYGEN MASK
Emergency Flow Control
Rotate in direction of arrow to supply a continuous 100% oxygen flow.
Rotate to adjust the supply pressure.
Press to test whether a continuous flow will be available.
GF0810_005a
Volume 2 Flight Crew Operating Manual Rev 2A, Apr 11, 2005
Rev 2A, Apr 11, 2005 Flight Crew Operating Manual Volume 2
The passenger oxygen control panel located on the Copilot’s side panel, is equipped with an altimetric valve (4 modes). The control panel has a rotary switch that lets the crew choose between three operating modes of the altimetric valve.
Altimetric Valve Rotary Switch
The four modes of operation are:
NORMAL
OVERRIDE
CLOSED
. Supplies oxygen automatically to the passenger compartment when cabin altitude reaches 14,500 feet (+500/.750 feet).
. Overrides the altitude switch in the control panel and supplies oxygen to the passenger compartment regardless of altitude.
. Stops oxygen supply to the passenger compartment.
FGF0810_001
When the cabin altitude reaches 14,500 feet (+500/.750 feet), a message will appear on EICAS, when the altimetric valve is set at NORMAL and there is oxygen flow in the passenger compartment.
Volume 2 Flight Crew Operating Manual Rev 2A, Apr 11, 2005
OXYGEN LO QTY
Indicates that crew oxygen bottle has < 75 % oxygen (1400 PSI).
PASSENGER OXY ON
Indicates that the passenger oxygen system has been activated.
GF0810_009a
Rev 2A, Apr 11, 2005 Flight Crew Operating Manual Volume 2
EMERGENCY EQUIPMENT
OXYGEN SYSTEM QUANTITY READOUT
Oxygen System Quantity Readout
Indicates oxygen system quantity in
increments of 1%
Colors are:
Amber . < 75%.
Green . > 75%.
Volume 2 Flight Crew Operating Manual Rev 2A, Apr 11, 2005
The following tables show the total time (in hours, minutes and seconds) that oxygen will be available at various mask settings, during various flight conditions, at initial bottle pressures of 75% and 100%. A margin of safety of 10% was subtracted from the full charge of 100% in all cases.
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