Larson Davis SoundAdvisor 831C Reference Manual page 229

FIGURE B-1 Windscreen Direction
EPS2116 Corrections
The following table and graph display correction factors for effects of the EPS2116 on the response of the sound
level meter. These are corrections are intended for laboratory use when testing to IEC 61672-3 to account for effects
of the EPS2116. See Table B.3 for the appropriate filter selection in the sound level meter for a given test as well as
the associated correction factor to be applied. Note that the correction factors are tabulated in Table B.4.
Table B.3 Test, Filter, and Correction Correlation
Test
Free Field Response
90 Degree Response
Random Incidence
Response
SoundAdvisor Model 831C
Sound Level Meter
Filter
FF:FF 2116
FF:90 2116
FF:RI 2116
EPS 2116 Correction
(See Table A.2)
Free Field to Free Field EPS2116
Correction Factor
Free Field to 90 Degree EPS2116
Correction Factor
Free Field to Random Incidence
EPS 2116
B-6