CESVA SC-20e Manual Del Usuario página 46

11.2 Frequency weighting
A and C frequency weightings as well as the tolerance for type 1 appear in the
following table.
Frequency
(Hz)
16
31.5
63
125
250
500
1,000
2,000
4,000
8,000
16,000
11.3 DC output
Sensitivity:
Upper limit:
Output Impedance:
Maximum Error:
11.4 AC output
Frequency weighting :
Sensitivity at 137 dB and 1 kHz:
Upper limit:
Output Impedance:
Available Frequency weightings
Function
L
Cpk
L
F
L
S
L
E
L
eq
A weighting
(dB)
- 56.7
- 39.4
- 26.2
- 16.1
- 8.6
- 3.2
0
+ 1.2
+ 1.0
- 1.1
- 6.6
1.4 V (140 dB)
100 
± 4 mV (± 0.4 dB with regard to the
display value)
44
Weighting
C
A or C
A or C
A or C
A or C
C weighting
(dB)
- 8.5
- 3.0
- 0.8
- 0.2
- 0.0
- 0.0
0
- 0.2
- 0.8
- 3.0
- 8.5
10 mV/dB
linear
3.8 Vrms (typical)
4.5 Vrms (typical)
300 
Tolerance for
Type 1 (dB)
+ 3; -
 1.5
 1.5
 1
 1
 1
 1
 1
 1
+1.5; -3
+ 3; -