NTi Audio M2230-WP - Manual (Page 10)

10
Outdoor Microphone
Always activate the frequency correction •
filter in the XL2 when measuring a horizon-
tal sound incidence (sound source from the
side) with the M2230-WP. The filter ensures
that the measurements accuracy meets the
requirements of IEC 61672 class 1 and ANSI
S1.4 type 1.
Deactivate the filter only if you are measur-
•
ing a vertical sound incidence (sound source
from above e.g. airplane noise) with the
M2230-WP.
Do not use the M2230-WP in a horizontal po-
sition. Raindrops may reach and damage the
M2230 measurement microphone.