Svantek SV 102 Short user manual - page 8
SV 25S Short User Guide
8
4. Calibration of the SV 25S microphone with SV30/SV31 acoustic
calibrator.
SA 131 adapter is required to calibrate SV 25S with ½” acoustic calibrator. Place the
SV 25S probe inside the calibration adapter and then put them inside the acoustic
calibrator.
Calibration procedure of the instrument is described in
Chapter 5 of SV 102 User Manual
IMPORTANT NOTE!!
Sound pressure generated by calibrators other than SV 30A & SV 31 at the SV 25S microphone
may vary from the nominal level of the calibrator because of different air volume comparing to
classic 1/2” microphones.
Therefore a correction is necessary for some calibrators:
SV 30A correction is not necessary (0.0dB)
SV 31 correction is not necessary (0.0dB)
SV 32 correction factor equals to (-0.15dB)
Correction factor must be added to the nominal level of the calibrator indicated in calibration
certificate of the calibrator.
Example:
Suppose SV 32 calibration level is 94.1dB.
The calibration level that suppose to be typed in during calibration of SV102 is 93.95dB