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SL400
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Introduction
Thank
you
for
selecting
the
Extech
Instruments
Model
SL400.
This
device
is
shipped
fully
tested
and
calibrated
and,
with
proper
use,
will
provide
years
of
reliable
service.
Please
visit
our
website
(www.extech.com)
to
check
for
the
latest
version
of
this
User
Guide,
Product
Updates,
Software,
and
Customer
Support.
Safety
CAUTION:
Avoid
taking
measurements
in
humid
or
wet
environments.
WARNING:
Ensure
that
the
ambient
humidity
conditions
are
within
those
specified
and
referenced
in
the
Environmental
Conditions
section.
WARNING:
Avoid
taking
measurements
in
the
presence
of:
Explosive
gases
Combustible
gases
Steam
Excessive
dust
CAUTION:
Do
not
operate
the
instrument
in
ambient
temperature
and
humidity
conditions
beyond
those
recommended
and
referenced
in
the
Environmental
Conditions
section.
ATTENTION:
Keep
the
microphone
dry
and
avoid
severe
vibration.
ATTENTION:
Wind
blowing
across
the
microphone
can
add
extraneous
noise.
If
the
instrument
is
used
in
windy
conditions,
use
the
supplied
microphone
windscreen
to
prevent
undesirable
signals.
The
following
symbols
are
used:
Caution:
Incorrect
use
may
damage
the
instrument.
The
instrument
conforms
to
the
CE
standard
Supplied
Accessories
User’s
manual
Carrying
case
9V
battery
Microphone
and
windscreen
PC
Software
MINI
USB
Cable
(Mini
B
type)
www.
GlobalTestSupply
.com
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