12
Operating
Instructions/User
Selections.
Note
1
:
The
CO2
Module
is
shipped
with
the
large
airway
adapter
attached
to
the
sensor.
The
sensor
has
been
“zeroed”
with
that
airway
adapter
attached
prior
to
shipment
and
should
not
need
to
be
zeroed
again
before
use.
However,
anytime
the
airway
adapter
is
changed
on
the
sensor,
the
sensor
must
be
“zeroed”
with
the
new
airway
adapter
in
place.
Zeroing
the
sensor:
1.
Ensure
no
CO2
gas
is
in
the
airway
adapter.
2.
Access
the
CO2
sensor
zero
screen
on
the
II
setup
menu
by
pressing
and
holding
your
finger
on
bottom
left
quadrant
of
the
touch
screen
while
powering
ON
the
II
with
the
power
button.
Release
the
touch
screen
at
the
count
of
10
to
enter
the
CO2
sensor
zeroing
mode.
3.
Observe
the
on
‐
screen
messages
for
warm
‐
up
and
zeroing.
Both
warm
‐
up
and
zeroing
should
complete
within
2
minutes
each.
4.
Wait
for
the
II
to
report
“Finished
Zeroing”
on
the
display—the
II
will
automatically
power
OFF.
Power
the
II
unit
ON
and
turn
on
the
CO2
function.
Verify
the
displayed
instantaneous
CO2
value
(not
the
ETCO2
CO2)
is
0
or
1,
and
if
not,
re
‐
zero
the
device.
3.
Attach
the
sensor
to
the
airway
adapter.
****Note
that
the
airway
and
sensor
must
be
in
the
upright
vertical
position
as
shown.