Frequency Weightings - Larson Davis 831 User Manual

Resolution Specifications

Frequency Weightings

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