Larson Davis Spartan 821 - Page 101

Spartan 821/721 Manual IEC 61672-1 Section 9.3 B-12
5309
-0.58 -0.60 -0.65 -0.57 -0.57 -0.53 -0.40 -0.53 -0.35
5623
-0.50 -0.58 -0.70 -0.60 -0.53 -0.50 -0.45 -0.50 -0.30
5957
-0.50 -0.52 -0.70 -0.60 -0.55 -0.50 -0.30 -0.45 -0.27
6310
-0.53 -0.40 -0.50 -0.50 -0.43 -0.50 -0.30 -0.40 -0.25
6683
-0.45 -0.30 -0.42 -0.48 -0.30 -0.40 -0.20 -0.30 -0.20
7079
-0.30 -0.20 -0.35 -0.37 -0.30 -0.30 -0.13 -0.30 -0.03
7499
-0.40 -0.33 -0.40 -0.50 -0.50 -0.40 -0.32 -0.40 -0.20
7943
-0.63 -0.62 -0.70 -0.85 -0.68 -0.70 -0.58 -0.70 -0.55
8414
-0.60 -0.70 -0.50 -0.92 -0.85 -0.88 -0.70 -0.87 -0.62
8913
-0.80 -0.90 -0.70 -1.10 -1.00 -0.90 -0.68 -0.90 -0.70
9441
-0.72 -0.95 -0.73 -1.00 -1.00 -0.80 -0.65 -0.80 -0.53
10000
-0.75 -0.90 -0.80 -1.08 -0.95 -0.75 -0.70 -0.75 -0.50
10593
-0.75 -1.03 -0.83 -1.15 -1.00 -0.88 -0.80 -0.82 -0.57
11220
-0.75 -1.20 -1.00 -1.20 -1.30 -1.22 -1.10 -1.10 -0.88
11885
-1.28 -1.18 -1.45 -1.45 -1.70 -1.60 -1.50 -1.42 -1.20
12589
-1.73 -1.40 -1.80 -1.85 -2.10 -1.83 -1.72 -1.72 -1.45
13335
-1.63 -1.18 -1.80 -1.35 -1.85 -1.43 -1.40 -1.27 -1.02
14125
-1.20 -1.00 -1.90 -1.03 -2.00 -1.20 -1.22 -1.10 -1.02
14962
-1.17 -1.55 -1.90 -1.55 -2.47 -1.70 -1.78 -1.63 -1.60
15849
-1.85 -2.40 -2.45 -2.15 -2.83 -2.48 -2.45 -2.22 -2.20
16788
-1.90 -2.48 -1.85 -1.75 -2.08 -2.05 -1.93 -1.55 -1.47
17783
-2.05 -1.75 -0.65 -1.53 -2.20 -1.77 -1.50 -1.12 -1.20
18836
-2.32 -1.50 -1.45 -2.58 -3.20 -2.78 -2.55 -2.40 -2.35
19953
-1.81 -2.78 -3.45 -2.88 -4.51 -2.97 -3.39 -2.95 -2.17
1. Note: These values represent the typical effect of the WS001 windscreen on the acoustic response of the 821/
721 sound level meter. They may be subtracted from a measured value to correct for the windscreen effect..
TABLE B.4 Directional Response (from 100° to 180°) of 3 ½-inch Windscreen (Continued)
Frequency (Hz)
Angle from Reference Direction (Degrees)
1
100° 110° 120° 130° 140° 150° 160° 170° 180°