BioPak 240R-NIOSH User Instruction Manual
47C090, Revision C
Page 18 of 25
3. Adjust the facemask top strap so that
the mask is at the correct level with the
face and the head-harness pad is in the
center of the back of the head, then
tighten harness straps in sequence,
Bottom, Middle, Top.
DO NOT over-
tighten.
4. Depress the push button of the
facemask front port and insert the
breathing hose adapter into the port.
Release the push button and tug and
the breathing hose adapter to ensure
that it securely anchored.
4.4 Activate Oxygen Supply
1. Slowly turn the green oxygen knob
located on the right side of the
apparatus house to its full
counterclockwise (rearward) position.
2. Watch the pressure gauge and LED.
The pressure gauge shall read a
minimum of 3000 psi (207 bar) pressure
to achieve full apparatus duration. The
LED shall initially flash
RED
,
GREEN
,
BLUE
with the horn sounding. The LED
shall then flash
GREEN
to signal
acceptable system status. If after 5-10
minutes of operation the LED flashes
BLUE
,
this is a reminder to check that
the coolant canisters have been
installed. This is a self-cancelling alarm
that will return the LED to flashing
GREEN
after 5-minutes.
DO NOT
place the apparatus into service if
the pressure gauge or LED is not functioning
as described above or if the LED is flashing
RED
; or, if the LED is not flashing at all; or if
the LED is not flashing
GREEN
.
3.
Exhalation Check Valve Test:
With
two hands collapse the
inhalation
hose
and inhale. Proper sealing of the
exhalation check valve will result in the
facemask being pulled in toward the
face.
4.
Inhalation Check Valve Test:
With two
hands collapse the
exhalation
hose and
exhale. Proper sealing of the inhalation
