Casella-cel CEL-414 Manual do Utilizador descarregar pdf (Página 51)

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Table 5: Typical noise floor in pass bands CEL-266/3 [and CEL-328/2]

Centre 20 (Lo) 20 (Lo) 50 (med) 80 (Hi)

Freqency A-weighted Linear A + Lin A + Lin

dB dB dB dB

31.5 Hz 8 [5] 16 [8] <39 [35] <69 [65]

63.0 Hz 8 [5] 15 [10] <39 [35] <69 [65]

125.0 Hz 8 [5] 13 [12] <39 [35] <69 [65]

250.0 Hz 10 [7] 12 [13] <39 [35] <69 [65]

500.0 Hz 10 [11] 11 [14] <39 [35] <69 [65]

1.0 kHz 11 [14] 11 [14] <39 [34] <69 [64]

2.0 kHz 11 [16] 11 [16] <39 [33] <69 [63]

4.0 kHz 11 [17] 11 [17] <39 [31] <69 [61]

8.0 kHz 9 [16] 11 [18] <39 [34] <69 [64]

16.0 kHz 8 [13] 10 [19] <39 [39] <69 [69]

1 2 ... 46 47 48 49 50 51 52 53 54 55 56

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