407780A
‐
EU
‐
EN
v1.3
4/14
16
Self
‐
generated
noise
level:
Typical
values
at
23
o
C
(73.4
o
F),
using
the
nominal
microphone
equivalent
capacitance
of
27pF
(30
‐
90dB
range)
Weighting
Electrical
Total
A
22.7dB
26.1dB
C
21.8dB
29.5dB
Linearity
operating
range:
A
‐
weighted,
1000Hz,
60dB
dynamic
range.
Total
linear
operating
range:
In
accordance
with
IEC
61672
‐
1,
A
‐
weighted,
1000Hz:
30dB
to
130dB.
Level
range
selection:
5
ranges
in
10dB
steps
30
to
90dB
,
40
to
100dB,
50
to
110dB
,
60
to
120dB,
70
to
130dB
Linear
Operating
Ranges
(L.O.R.)
RANGE:
30
–
90
dB.
Test
starting
point
64
dB
for
all
weightings
and
frequencies
except
31.5Hz
A
‐
weighted,
for
which
the
starting
point
is
44
dB.
FREQUENCY
Hz
WEIGHTING
L.O.R.
dB
WEIGHTING
L.O.R.
dB
31.5
A
36.1
–
50.6
C
39.5
–
87.0
1000
A
36.1–
90.0
C
39.5
–
90.0
4000
A
36.1
–
90.0
C
39.5
–
89.2
8000
A
36.1
–
88.9
C
39.5
–
87.0
RANGE:
40
–
100
dB.
Test
starting
point
74
dB
for
all
weightings
and
frequencies
except
31.5Hz
A
‐
weighted,
for
which
the
starting
point
is
54
dB.
FREQUENCY
Hz
WEIGHTING
L.O.R.
dB
WEIGHTING
L.O.R
dB
31.5
A
40.0
–
60.6
C
40.0
–
97.0
1000
A
40.0
–
100.0
C
40.0
–
100.0
4000
A
40.0
–
100.0
C
40.0
–
99.2
8000
A
40.0
–
98.9
C
40.0
–
97.0
RANGE:
50
–
110
dB.
Test
starting
point
84
dB
for
all
weightings
and
frequencies
except
31.5Hz
A
‐
weighted,
for
which
the
starting
point
is
64
dB.
FREQUENCY
Hz
WEIGHTING
L.O.R
dB
WEIGHTING
L.O.R
dB
31.5
A
50.0
–
70.6
C
50.0
–
107.0
1000
A
50.0
–
110.0
C
50.0
–
110.0
4000
A
50.0
–
110.0
C
50.0
–
109.2
8000
A
50.0
–
108.9
C
50.0
–
107.0
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