User's Manual

A-14 Frequency Weighting Curves HVM200 Manual
Wg Frequency Weighting (Defined in BS6841:1987)
25.0 25.12 -28.01 +0.06 -5.84 +1 / -1
31.5 31.62 -30.04 +0.00 -7.89 +1 / -1
40.0 39.81 -32.11 -0.08 -10.01 +1 / -1
50.0 50.12 -34.26 -0.25 -12.21 +1 / -1
63.0 63.10 -36.64 -0.63 -14.62 +1 / -1
80.0 79.43 -39.46 -1.45 -17.47 +1 / -1
100 100.0 -43.01 -3.01 -21.04 +1 / -1
125 125.9 -47.46 -5.45 -25.50 +2 / -2
160 158.5 -52.64 -8.64 -30.69 +2 / -2
200 199.5 -58.27 -12.26 -36.32 +2 /
-
250 251.2 -64.11 -16.11 -42.16 +2 / -
315 316.2 -70.04 -20.04 -48.10 +2 / -
400 398.1 -76.02 -24.02 -54.08 +2 / -
Freq ( Hz)
Nominal
Freq ( Hz)
True
Wg dB Tolerance
dB
1.00 1.00 -7.5 +1 / -1
1.25 1.26 -6.0 +1 / -1
1.60 1.59 -4.6 +1 / -1
2.00 2.00 -3.4 +1 / -1
2.50 2.51 -2.2 +1 / -1
3.15 3.16 -0.9 +1 / -1
4.00 3.98 -0.0 +1 / -1
5.00 5.01 +0.4 +1 / -1
Freq ( Hz)
Nominal
Freq ( Hz)
True
We dB Wj dB Wk dB
Tolerance
dB