407780A
‐
EU
‐
EN
v1.3
4/14
2
Introduction
Thank
you
for
selecting
the
Extech
Instruments
Model
407780A.
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,
and
Customer
Support.
Features
The
Sound
Level
Meter
complies
with
the
requirements
of
IEC
61672
‐
1:2003
standard
for
a
Class
2
instrument.
The
instrument
contains
several
features
which
permit
sound
level
measurements
under
a
variety
of
conditions.
Features
include:
Five
measurement
ranges
Fast,
Slow
and
Impulse
time
weighting
settings
A
and
C
frequency
weighting
settings
Storage
of
up
to
32000
measurement
records
USB
serial
port
for
downloading
records
to
a
computer
or
real
time
analysis
AC/DC
signal
outputs
are
available
from
a
single
standard
3.5mm
coaxial
socket
suitable
for
use
with
a
frequency
analyzer,
level
recorder,
FFT
analyzer,
graphic
recorder,
etc.
Leq,
SEL,
SPL
MAX,
SPL
MIN,
PH
(Peak
Hold),
L05,
L10,
L50,
L90,
and
L95,
ten
measured
parameters
are
monitored
during
measurement
Preset
measurement
time
Sound
level
alarm
output
connector
www.
.com
1.800.561.8187
