B&K 2250 Light Manual do Utilizador descarregar pdf (Página 265)

253

Appendix B

Measurement Parameters

This appendix describes the measurement parameters. They are measured in accordance with

the setup parameters.

• Please refer to the Glossary in Appendix E for a description of the parameters

• The following letters are substituted in the parameters that follow to represent the wide

range of frequency weightings, time weightings and percentile levels available:

V = frequency weightings A, B, C or Z (controlled by Setup > Frequency Settings > BB Peak

parameter)

X = frequency weightings A or B (controlled by Setup > Frequency Settings > BB (excl. peak)

parameter)

Y = frequency weightings C or Z (controlled by Setup > Frequency Settings > BB (excl. peak)

parameter)

W = frequency weightings A, B, C, Z or G (controlled by Setup > Frequency

Settings > Spectrum parameter)

U = time weightings F or S (controlled by Setup > Statistics > Spectral Statistics based on

parameter)

R = time weightings F or S (controlled by Setup > Occupational Health > Time Weighting

for Lav parameter)

Q = exchange rate 4, 5 or 6 dB (controlled by Setup > Occupational Health > Exchange Rate

for Lav parameter)

N = number between 0.1 and 99.9 (controlled by Setup > Statistics > Percentile N parameter)

Note: All parameters will be per channel in 2-channel templates unless stated otherwise

(Type 2270 only).

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B&K 2250 Light Manual do Utilizador Página 265