HOBO
MX2300
Series
Data
Logger
Manual
1
‐
800
‐
LOGGERS
8
www.onsetcomp.com
side
of
the
sensor
is
vertical
or
facing
down.
If
the
sensor
is
being
deployed
in
an
RS3
‐
B
solar
radiation
shield,
mount
it
vertically
as
shown
below.
When
deploying
a
logger
with
external
sensors
(MX2302A,
MX2303,
and
MX2304),
mount
the
logger
so
the
sensor
cable
is
not
being
pulled.
Leave
about
5
cm
(2
in.)
of
drip
loop
in
the
cable
where
it
comes
out
of
the
logger
to
prevent
water
from
entering
the
logger
housing.
For
MX2301A
and
MX2305
loggers
that
are
not
being
deployed
with
a
solar
radiation
shield
or
for
loggers
with
external
sensors
(MX2302A,
MX2303,
and
MX2304),
you
can
either
use
the
included
large
screws
or
cable
ties
to
mount
the
logger
via
the
mounting
holes.
Use
the
screws
to
attach
the
logger
to
a
wall
or
flat
surface.
Use
the
cable
ties
to
affix
the
logger
to
a
PVC
pipe
or
mast.
The
MX2301A
logger
must
also
be
mounted
vertically
or
with
the
sensor
vent
facing
down
when
not
using
the
solar
radiation
shield.
Protecting
the
Logger
Note:
Static
electricity
may
cause
the
logger
to
stop
logging.
The
logger
has
been
tested
to
8
KV,
but
avoid
electrostatic
discharge
by
grounding
yourself
to
protect
the
logger.
For
more
information,
search
for
“static
discharge”
on
onsetcomp.com.
Battery
Information
The
logger
requires
one
user
‐
replaceable
2/3
AA
3.6
V
lithium
battery
(HRB
‐
2/3AA).
Battery
life
is
2
year,
typical
with
a
logging
interval
of
1
minute,
but
may
be
extended
to
5
years
when
the
logger
is
configured
with
Bluetooth
Always
On
disabled.
Expected
battery
life
varies
based
on
the
ambient
temperature
where
the
logger
is
deployed,
the
logging
or
sampling
interval,
frequency
of
offloading
and
connecting
to
the
mobile
device,
number
of
channels
that
are
active,
and
use
of
burst
mode
or
statistics
logging.
Deployments
in
extremely
cold
or
hot
temperatures
or
logging
interval
faster
than
1
minute
can
impact
battery
life.
Estimates
are
not
guaranteed
due
to
uncertainties
in
initial
battery
conditions
and
operating
environment.
To
install
or
replace
the
battery:
1.
Use
a
Phillips
‐
head
screwdriver
to
unscrew
the
four
screws
from
the
back
of
the
logger.
2.
Carefully
separate
the
top
and
bottom
of
the
logger
enclosure.
3.
Remove
the
old
battery
and
insert
the
new
battery
observing
polarity.
It
is
recommended
that
you
replace
the
desiccant
(DESICCANT2)
when
replacing
the
battery.
4.
Make
sure
the
rubber
seal
is
clean
and
free
of
any
debris
and
then
carefully
reassemble
the
logger
enclosure
and
screw
in
the
four
screws.
WARNING:
Do
not
cut
open,
incinerate,
heat
above
85°C
(185°F),
or
recharge
the
lithium
battery.
The
battery
may
explode
if
the
logger
is
exposed
to
extreme
heat
or
conditions
that
could
damage
or
destroy
the
battery
case.
Do
not
dispose
of
the
logger
or
battery
in
fire.
Do
not
expose
the
contents
of
the
battery
to
water.
Dispose
of
the
battery
according
to
local
regulations
for
lithium
batteries.
Unscrew
these
four
screws
to
replace
the
battery
Drip
Loop
