Larson Davis 831 - Frequency Weightings

Model 831 Manual Model 831 Specifications A-11
Resolution Specifications
Frequency Weightings
Levels 0.1dB
Dose 0.01%
Elapsed time 0.1 second
Real time clock 1 second
Calendar 01 Jan 2005 - 31 Dec 2038
Table A-10 Resolution Specifications
Nominal
Frequency
Exact
Frequency
Z-
Weight
(Ideal)
A
Weight
(Ideal)
C
Weight
(Ideal)
Electrical
Limits:
Class 1
Microphone
Limits:
Class 1
6.3 6.31 0.0 -85.3 -21.3
8.0 7.94 0.0 -77.8 -17.7
10 10.00 0.0 -70.4 -14.3 + 1.4, - 0.7 ±1.5
12.5 12.59 0.0 -63.4 -11.2 + 0.5, - 0.6 ±1.3
16 15.85 0.0 -56.7 -8.5 + 0.4, -0.5 ±1.0
20 19.95 0.0 -50.5 -6.2 + 0.3, -0.4 ±0.5
25 25.12 0.0 -44.7 -4.4 ±0.2 ±0.5
31.5 31.62 0.0 -39.4 -3.0 ±0.2 ±0.5
40 39.81 0.0 -34.6 -2.0 ±0.2 ±0.5
50 50.12 0.0 -30.2 -1.3 ±0.5 ±0.5
63 63.10 0.0 -26.2 -0.8 ±0.5 ±0.5
80 79.43 0.0 -22.5 -0.5 ±0.5 ±0.5
100 100.00 0.0 -19.1 -0.3 ±0.5 ±0.5
Table A-11 Frequency Weightings