Color-coded 6 mm.
BLUE
outlet Quick-Connect union
connects to the cannula or
face mask
Color-coded 4 mm.
RED
inlet Quick-Connect
union connects to
the primary reducing
regulator
Power On/Off
and Control
Switch
Operational and
precautionary
front face-place
Audio port.
Sound from
flow-fault
and
apnea
conditions only
POSITIVE
FLOW
!
FLOW FAULT
APNEA
LOW BATT
STATIC PORTS
DO NOT COVER
EDS MODEL D1
MH
INLET TO
SUPPLY / CYLINDER
OUTLET TO
CANNULA / FACE MASK
Green LED
Red LED
Static ports
DO NOT COVER
EDS-D1
Page 2 of 8
High brightness green
LED for indication of
positive flow of
oxygen for each
inspiration effort.
High brightness
red LED for
indication of
oxygen
flow-faults,
apnea and low
battery condition.
External Battery
Cannula
Inside (tip) is neg (-)
Outside (ring) is pos (+)
EDS Unit
EPS
11 - 28 VDC input
The EDS-EPS is a floating
ground unit suitable for
negative or positive ground
systems. Be sure to ground it
to the main system ground.
System Ground
1
2
3
9 Volt
A l k a l i n e
Replacing the battery in the EDS unit
Remove the battery door by holding the unit with both hands
and pressing in with your thumbs at the point of the arrow
pushing in while pushing door outwards (fig 1.) This is best
done if the unit is held with the battery door facing up at you
and out. The EDS-D1 unit uses a standard 9 (nine) volt
alkaline battery connector system. This is a very positive-
connecting type connector that requires a bit more force to
connect and disconnect to the battery. This is a superior type
connector for equipment subjected to rough out-door
treatment. Therefore, please take extra care in removing and
replacing the battery making sure not to pull on the wires.
Use only alkaline type batteries with the EDS-D1 unit.
If the EDS -D1 unit will be
operating outside in very cold
temperatures, premature
battery depletion may be
likely. An external battery
connector can be wired up to
use an external 9 volt battery
placed somewhere warmer
such as your flight suit. It
can also be used as an
emergency backup,
electronically replacing the
internal battery with the
external battery that is
plugged in the external jack..
Up to (8) eight EDS-D1 units can
be powered from our optional EPS
(External Power Supply) unit if it is
desirable to use the power system
from an aircraft. The EPS is a 10
volt @ 500 ma. low-drop-out
voltage regulator and filter unit that
operates from 11 to 28 volts. It
filters out glitches caused by
hydraulic pumps, strobe lights and
other high-energy devices. It works
