407780A
‐
EU
‐
EN
v1.3
4/14
12
External
power
source
Insert
the
plug
of
an
AC
adaptor
or
external
battery
pack
into
the
DC
6V
(DC
source
from
5V
to
6V)
socket
on
the
side
of
the
instrument.
When
a
connector
is
inserted
into
this
socket,
the
internal
batteries
will
be
disconnected
and
the
instrument
will
be
powered
from
the
external
source.
The
low
battery
symbol
will
appear
on
the
display
if
the
external
voltage
is
insufficient
for
the
instrument
to
provide
accurate
measurements.
Note:
Ensure
that
the
external
power
source
is
connected
with
the
polarity
as
indicated
in
the
following
diagram;
otherwise
damage
may
be
caused
to
the
instrument
and
external
power
source.
Windscreen
When
making
measurements
in
strong
winds,
wind
noise
and
strong
air
movements
at
the
microphone
can
cause
measurement
errors.
Such
effect
can
be
reduced
by
using
the
windscreen.
Tripod
Mounting
For
long
‐
term
measurements,
the
instrument
may
be
mounted
on
a
standard
camera
tripod
using
the
rear
integral
¼”
x
20
UNC
mounting
thread.
Alarm
output
If
the
measured
dB
level
exceeds
the
set
limit,
the
over
limit
signal
will
appear
at
the
alarm
output
connector
(5Vdc
output).
The
output
signal
will
remain
active
as
long
as
the
sound
level
exceeds
the
set
limit
Setting
the
sound
level
alarm
high
limit:
1.
Switch
the
meter
OFF.
2.
Press
and
hold
the
LEQ
SEL
SPL
button
while
switching
the
meter
ON.
3.
Release
the
LEQ
SEL
SPL
button;
the
ALARM
symbol
(along
with
the
currently
set
limit)
is
displayed.
4.
Use
the
▲
▼
buttons
to
set
the
desired
sound
level
high
limit
value.
5.
Press
LEQ
SEL
SPL
button
to
store
the
setting
and
to
exit
this
mode.
Software
Installation
and
Operation
For
installation
and
operating
instructions,
please
refer
to
the
contents
of
the
supplied
CD
‐
ROM.
www.
.com
1.800.561.8187
