Soft dB Opus Suite SLM & 3Vib Module - Manual (Page 23)

20
6.1.3.1 SLM Calibration Interface
Figure 1 SLM Calibration Interface
Step 1 Adjust the calibration parameters
The defaults values are:

Averaging time: 5 s

Frequency: 1 kHz

Calibrator Level: 94 dB
Step 2 Install the calibrator device on the microphone
Step 3 Click START
After the average time is elapsed, the sensitivity value will update.
Step 4 Click OK to accept the sensitivity value
6.1.4 SLM dBref value
The dBref value is the reference value that is used to establish the zero decibel (dB) level. In the
application, the decibel level will be based on this reference. The standard dBref value for SLM
measurements is 2E-5 Pa.