Daher-Socata TBM 900 Pilot's Information Manual page 456

PILOT'S OPERATING HANDBOOK
A control panel located in the cockpit overhead panel at the disposal of the pilot includes :
- a two-position valve ON/OFF ("OXYGEN" switch) to permit the supply of the front seats occupiers masks,
- a two-position valve ON/OFF ("PASSENGERS OXYGEN" switch) with guard to permit the supply of the
passengers four masks, when the first valve is open.
Oxygen pressure is displayed on the GDU 1500 MFD.
An altimetric valve provides an automatic passengers masks actuation function at a cabin altitude between 13000
and 14000 ft when "OXYGEN" switch is set to ON.
Two pressure-demand type masks allowing quick donning with only one hand, covering the nose and the mouth,
as well as two pairs of smoke goggles are at disposal of the pilot and of the R.H. front seat occupier. Masks are
installed in cups on the cabin walls aft of the front seats. Permanently connected to the oxygen system, they are
equipped with a micro controlled by the switch ("MICRO/MASK" micro inverter) under cover located on the
instrument panel near the pilot's control wheel. The cockpit masks are equipped with a microphone, a
three-position selector NORMAL, 100 % and EMERGENCY and with a push-button "PRESS TO TEST". The
proper flow is signaled by a flow indicator (blinker) into the oxygen tubing.
The airplane is equipped with two smoke goggles.
Four passengers constant-flow type masks, covering the nose and the mouth and permanently connected, are
installed in two containers on the cabin ceiling. The opening of these containers and the descent of the masks are
controlled by the pilot, when both switches at its disposal are set to ON, or automatically at a cabin altitude between
13000 and 14000 ft with the "OXYGEN" switch set to ON. The oxygen flow is obtained by pulling on the mask
bounded by a lanyard cord to a pin. A proper flow is signaled by the filling of the green bag located on each
passenger mask.
Edition 0 -- October 31, 2013
Rev. 1
SECTION 7
DESCRIPTION
Page 7.10.3