Soft-db Opus Suite SLM 4-Ch Module Manual de usuario descargar pdf (Pagina 21)

6.1 Input Selection

The Concerto allows the user to perform measurements on 1 to 4 inputs simultaneously.

Click on the / button to enable or disable specific inputs.

The number of enabled inputs has an effect on the 1/3 Octave Spectrum Frequency Span:

Number of Enabled Inputs

1/3 Octave Spectrum Frequency Span

1 to 2

6.3 Hz to 20 kHz

3 to 4

20 Hz to 20 kHz

6.2 Input Type

The available input types are AC and ICP sensors.

6.3 Dynamic Range

Dynamic range of each Input is around 94 dB. Input 1 and 2 have two range settings (low or high)

while inputs 3 and 4 have a single fixed range (low).

The limits of these ranges in dB depend on the sensor sensitivity. The table below provides examples

of the linear dynamic range for sensitivities of 40 and 50 mV/Pa.

Microphone Sensitivity

40 mV/Pa

50 mV/Pa

Low Range

27 to 121 dB(A)

25 to 119 dB(A)

High Range

39 to 132 dB(A)

37 to 130 dB(A)

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 69 70

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Soft-db Opus Suite SLM 4-Ch Module Manual de usuario Pagina 21