© PCE Instruments
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Calibration
To perform a calibration, you need a suited sound level calibrator which has a
½
inch opening
for microphones.
To calibrate the device, follow these steps:
1.
Adjust the device to the following settings:
Frequency weighing: A
Sampling rate: FAST
Measuring range: 50 … 100 dB
2.
Put the end of the microphone in the
½
inch opening of the calibrator. Make sure that
the output signal of the calibrator lies within the set measuring range (for example 94
dB @ 1 kHz).
3.
Turn on the calibrator and use the potentiometer on the side of the sound level meter
to adjust the displayed value to the output signal of the calibrator (for example 94.0
dB).
The sound level meter comes with a factory calibration.
We recommend calibrating it once a year.