Front Panel Description - AMIX SNA 70 Manuel Utilisateur

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1 -

Channel measurement test light indicator.

2 -

Sensor corded connection default light indicator.

3 -

Audio presence light indicator.

4 -

Key associated to a light indicator. Allows to choose the analysis curve, used for historic.

 Pressed, light on: weighted curve analysis (Choose weighting by 5).



Released, light off: linear analysis

5 -

Key associated to a light indicator. Allows to choose the weighting, used for historic.

Pressed, light on: enable weighted filter A .

 Released , light off: enable intermediate filter M.

6 -

Key associated to a light indicator. Allows to set the reference for regulation.

 Pressed, green light on: SNA70 refers to the stereo line input.

 Released , red light on: SNA70 refers to the acoustic sensor.

7 -

Key associated to a light indicator. Allows to choose the analysis curve used for regulation of broadband.

 Pressed, light on: weighted analysis (Choose weighting by 8)

 Released, light off: linear analysis or filter card.

8 -

Key associated to a light indicator. Allows to choose the weighting used for regulation of broadband.

 Pressed, light on: enable A weighting filter.

 Released , light off: enabled intermediate filter M.

9 -

Audio presence on left and right inputs of SNA70. Allows to check quickly if a audio source is connected correctly to SNA70

input.

10 -

Scale allowing to control sound reduction level of SNA70. Attention this scale shows only the audio reduction in broadband

and not the reduction by octave band.

11 -

Control section of reduction by octave band. For this, there is no choice for the weighting, specifically it is the weighting Z

(included), ie linear in frequency.

 Pressed, green light on : SNA70 refers to the stereo line input for regulation by octave.

 Released , red light on: SNA70 refers to the the acoustic sensor for regulation by octave.

12 - The frequencies LEDS 63Hz, 125Hz, 250Hz, 500Hz, 1KHz, 2 KHz, 4 KHz light as soon as the acoustic pressure level

programmed for this band is reached and the regulation goes into service.

13 -

Keyboard used to modify parameters.

14 -

LCD display.

15 -

Top cover (plexiglas) opening detector.

16 -

Power on indicator.

17 -

Set of three indicators showing acoustic pressure variation in broadband.



Fixed Green Computed short Leq 1s is 3dB below instruction threshold.



Fixed Yellow



Fixed Red

The supplied RJV30 provided with SNA 50-2, remotely displays this information. It should be placed

In summary :

The maximun user allowance in broadband , instruction threshold is Leq 1 seconde.

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