407780A
‐
EU
‐
EN
v1.3
4/14
17
RANGE:
60
–
120
dB.
Test
starting
point
94
dB
for
all
weightings
and
frequencies
except
31.5Hz
A
‐
weighted,
for
which
the
starting
point
is
74
dB.
FREQUENCY
Hz
WEIGHTING
L.O.R.
dB
WEIGHTING
L.O.R.
dB
31.5
A
60.0
–
80.6
C
60.0
–
117.0
1000
A
60.0
–
120.0
C
60.0
–
120.0
4000
A
60.0
–
120.0
C
60.0
–
119.2
8000
A
60.0
–
118.9
C
60.0
–
117.0
RANGE:
70
–
130
dB.
Test
starting
point
104
dB
for
all
weightings
and
frequencies
except
31.5Hz
A
‐
weighted,
for
which
the
starting
point
is
84
dB.
FREQUENCY
Hz
WEIGHTING
L.O.R.
dB
WEIGHTING
L.O.R.
dB
31.5
A
70.0
–
90.6
C
70.0
–
127.0
1000
A
70.0
–
130.0
C
70.0
–
130.0
4000
A
70.0
–
130.0
C
70.0
–
129.2
8000
A
70.0
–
128.9
C
70.0
–
127.0
Frequency
range:
Overall
characteristics
including
microphone:
31.5
to
8000Hz
Frequency
weighting:
A,
meets
the
requirement
of
IEC
61672
‐
1
for
class
2
A
weighting.
C,
meets
the
requirement
of
IEC
61672
‐
1
for
class
2
C
weighting.
Time
weighting
(RMS
detection):
Fast,
according
to
IEC
61672
‐
1
class
2.
Slow,
according
to
IEC
61672
‐
1
class
2.
Impulse,
according
to
IEC
61672
‐
1
class
2.
Reference
conditions:
Type
of
the
acoustic
field:
Free
Reference
sound
pressure
level:
94.0dB
(related
to
20
Pa)
Reference
level
range:
60
to
120dB
Reference
frequency:
1000Hz
Reference
temperature:
+23
o
C
(73.4
o
F)
Reference
relative
humidity:
50%RH
Reference
static
pressure:
101.325
kPa
Reference
incidence
direction:
Perpendicular
to
the
front
of
the
microphone
diaphragm.
www.
.com
1.800.561.8187
