HOBO
MX
CO
2
Data
Logger
(MX1102A)
Manual
1
‐
800
‐
LOGGERS
6
www.onsetcomp.com
6.
Click
the
Start
button
when
finished.
Note
that
the
Start
button
text
changes
based
on
your
Start
Logging
selection.
Logging
will
begin
based
on
the
settings
you
selected.
Deploy
the
logger
using
the
included
mounting
materials
(see
Mounting
the
Logger
).
After
logging
begins,
you
can
read
out
the
logger
at
any
time
(see
Reading
Out
the
Logger
for
details).
Choosing
Logger
Settings
The
following
table
lists
the
available
settings
when
configuring
the
logger
with
the
app
or
HOBOware.
Logger
Setting
Action
Name
Enter
a
name
for
the
logger
up
to
20
characters.
This
name
will
be
used
as
the
file
name.
A
name
also
helps
identify
the
logger
in
the
Loggers
screen
in
the
app.
If
no
name
is
entered,
the
logger
serial
number
is
used.
Group
(the
app
only)
Add
the
logger
to
a
group
to
help
identify
the
logger.
Logging
Interval
Select
how
often
the
logger
will
record
data.
Start
Logging
Options
Choose
one
of
the
following:
Now.
Logging
will
begin
immediately
after
configuration
settings
are
loaded
on
the
logger.
On
Next
Logging
Interval.
Logging
will
begin
at
the
next
even
interval
as
determined
by
the
selected
logging
interval.
On
Button
Push.
Logging
will
begin
15
seconds
after
you
press
the
Start/Stop
logging
button
on
the
logger
for
3
seconds.
On
Date/Time.
Logging
will
begin
at
a
date
and
time
you
specify.
Stop
Logging
Options
Choose
a
memory
option:
When
Memory
Fills.
The
logger
will
continue
recording
data
until
the
memory
is
full.
Never
(Wrap
When
Full).
The
logger
will
continue
recording
data
indefinitely,
with
newest
data
overwriting
the
oldest.
This
option
is
not
available
if
the
Logging
Mode
is
set
to
Burst
(see
Burst
Logging
).
Choose
this
stop
logging
option
if
desired:
On
Button
Push.
Select
this
if
you
want
to
be
able
to
stop
logging
by
pushing
the
Start/Stop
button
on
the
logger.
For
HOBOmobile:
Note
that
if
you
also
choose
On
Button
Push
for
the
Start
Logging
option,
then
you
will
not
be
able
to
stop
logging
until
30
seconds
after
logging
begins.
Choose
a
Stop
Logging
time
‐
based
option.
Never.
Select
this
if
you
do
not
want
the
logger
to
stop
at
any
predetermined
time
frame.
On
Date/Time.
Select
this
if
you
want
the
logger
to
stop
logging
on
a
specific
date
and
time.
Select
the
date
and
time.
In
HOBOmobile,
tap
Done.
After.
Select
this
if
you
want
to
control
how
long
the
logger
should
continue
logging
once
it
starts.
Choose
the
amount
of
time
you
want
the
logger
to
log
data
and
then
tap
Done.
For
example,
select
30
days
if
you
want
the
logger
to
log
data
for
30
days
after
logging
begins.
Logger
Setting
Action
Logging
Mode
Choose
a
logging
mode:
Fixed
Logging.
The
logger
will
record
data
for
all
enabled
sensors
at
the
selected
logging
interval.
Burst
Logging.
In
burst
mode,
logging
occurs
at
a
different
interval
when
a
specified
condition
is
met.
See
Burst
Logging
for
more
information.
In
the
app,
select
Normal
if
you
want
the
logger
to
log
current
readings.
Select
each
statistic
you
want
the
logger
to
log.
In
HOBOware,
select
Statistics
and
then
select
Current
Reading
if
you
want
sensor
readings
to
be
logged.
Select
each
statistic
you
want
the
logger
to
log.
Current
readings
and
statistics
are
logged
at
the
logging
interval
rate.
See
Statistics
Logging
for
more
information.
Show
LCD
Enable
or
disable
to
control
whether
the
LCD
remains
illuminated
while
the
logger
is
logging.
If
you
disable
the
LCD,
the
logger
will
not
show
the
current
reading,
status,
or
other
information
while
the
logger
is
logging.
You
will,
however,
be
able
to
temporarily
turn
the
LCD
screen
on
by
pressing
the
Start/Stop
button
on
the
logger
for
1
second.
Sensor
&
Alarm
Setup
Enable
the
sensor
measurement
types
that
will
be
logged:
temperature,
RH,
and/or
CO
2
.
Both
temperature
and
RH
are
required
to
calculate
dew
point,
which
is
an
additional
data
series
available
for
plotting
after
reading
out
the
logger.
You
can
configure
alarms
for
sensors.
See
Setting
up
Alarms
.
If
logging
CO
2
,
you
can
select
calibration
settings.
See
Calibrating
the
Logger
.
Calibrating
the
Logger
The
CO
2
sensor
in
the
logger
requires
altitude
compensation
and
regular
calibration
to
ensure
accurate
readings
are
being
taken
in
the
location
where
it
is
deployed.
Both
auto
and
manual
calibration
are
selected
by
default
when
first
configuring
the
logger.
Altitude
compensation
should
be
used
if
you
are
monitoring
CO
2
at
elevations
above
or
below
305
meters
(1,000
feet).
Some
CO
2
measurement
drift
may
occur
during
shipment
and
storage.
A
manual
calibration
immediately
after
logging
begins
is
recommended
for
best
accuracy.
Important:
If
performing
a
manual
calibration,
be
sure
to
follow
the
instructions
later
in
this
section.
Improper
manual
calibration
can
result
in
incorrect
sensor
readings.
The
following
CO
2
settings
are
available
in
both
the
app
and
HOBOware:
Manual
calibration.
Manual
calibration
is
the
best
way
to
calibrate
your
logger.
Use
this
option
if
you
want
to
manually
calibrate
the
logger
to
400
ppm
using
the
Calibrate
button
on
the
logger.
This
requires
taking
the
logger
outside
in
fresh
air
on
a
dry
day
or
to
an
indoor
location
that
is
unoccupied
and
has
no
connection
to
a
ventilation
system
for
five
minutes
on
a
regular
basis.
Press
the
Calibrate
button
on
the
logger
for
5
seconds
to
manually
calibrate
the
CO
2
sensor.
“Calibrate”
and
“CO
2”
will
blink
on
the
LCD
during
the
5
‐
minute
manual
calibration
process
in
which
300
measurements
are
taken
