SD910
‐
en
‐
GB_V1.2
9/16
8
System
RESET
If
a
condition
appears
where
the
CPU
does
not
respond
to
keystrokes
or
the
meter
seems
frozen,
press
the
RESET
button
on
the
side
of
the
datalogger
(use
a
paper
clip
or
similar
pointed
object)
to
return
the
meter
to
a
working
state.
RS232
Interface
For
streaming
of
data
to
a
PC
via
the
RS232
Output
jack,
the
optional
407001
‐
USB
kit
(RS232
to
USB
cable
and
driver
CD)
along
with
the
407001
software
(available
free
at
www.extech.com)
are
required.
Backlight
Press
the
button
to
turn
on
the
backlight.
The
backlight
will
auto
turn
off
after
5
seconds.
4.
Maintenance
Battery
Replacement
1.
To
replace
or
install
batteries,
remove
the
Philips
head
screw
that
secures
the
rear
battery
cover
and
lift
off
the
cover.
2.
Replace
the
six
AAA
batteries
(use
alkaline
heavy
duty
type),
observing
polarity.
3.
Replace
and
secure
the
cover.
Battery
Safety
Notes
:
Please
dispose
of
batteries
responsibly;
never
dispose
of
batteries
in
a
fire,
batteries
may
explode
or
leak.
If
the
meter
is
not
to
be
used
for
60
days
or
more,
remove
the
battery
and
store
separately.
Do
not
mix
battery
types
or
freshness
levels;
please
use
batteries
of
the
same
type
and
of
the
same
freshness
level.
Never
dispose
of
used
batteries
or
rechargeable
batteries
in
household
waste.
As
consumers,
users
are
legally
required
to
take
used
batteries
to
appropriate
collection
sites,
the
retail
store
where
the
batteries
were
purchased,
or
wherever
batteries
are
sold.
Disposal:
Do
not
dispose
of
this
instrument
in
household
waste.
The
user
is
obligated
to
take
end
‐
of
‐
life
devices
to
a
designated
collection
point
for
the
disposal
of
electrical
and
electronic
equipment.
Cleaning
and
Storage
Periodically
wipe
the
case
with
a
damp
cloth
and
mild
detergent;
do
not
use
abrasives
or
solvents.
Please
remove
the
batteries
if
the
meter
is
stored
for
a
long
period
of
time.
