
13
Operation
8. Adjust the sound pressure measurement system (sound level meter) so that it reads
114 dB*.
* The precise output sound pressure level (specifi ed sound pressure level for
specifi c microphones) is given in the supplied calibration chart.
At this time, compensation for the microphone effective load volume and static
(atmospheric) pressure is required. For details, see the "Reference" section (pages
16 to 25).
### #
dB
.
JIS C 1515:2004
IEC 60942:2003
SOUND CALIBRATOR
Class LS/C and Class 1/C
Sound Pressure Level
Frequency 250 Hz
Ser. No.
Sound pressure level indication
(Specified sound pressure level at reference conditions)