Soft dB Opus Suite SLM & 3Vib Module - Manual (Page 26)

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6.2.3.1 Vib Calibration Interface
Step 1 Adjust the calibration parameters
The defaults values are:

Averaging time: 5 s

Frequency: 157 Hz

Calibrator Level: 1 g rms
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
After the average time is elapsed, the sensitivity value will update.
6.2.4 Vib 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 dBref value for vibration
measurements is normally 1E-6 m/s².
6.2.5 Vib Dynamic Range
The dynamic range of the vibration inputs is around 94 dB. Only one range is available for vibration
inputs. The table below provides examples of the dynamic range limits for given sensitivities of
100 mV/g.