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Description of the front panel.
( 1 )
dBA-trimmer :
To calibrate the ARGOS to the desired or legally imposed maximum sound pressure
level during installation of the ARGOS.
( 2 )
MODE SELECTION-switch :
With this 3-positions-switch the operation mode can be set to :
• LINE : (upper position) gain reduction will be based on the level of the Line-output
• LS
: (middle position) gain reduction will be based on the level of the LS-input.
• MIC : (lower position) gain reduction will be based on the level of the Mic-input.
The setting of this switch is done during installation.
( 3 )
FAST / SLOW-switch :
With this 2-position-switch, the reaction speed of the ARGOS can be set during
installation. This setting only has effect when the mode selection switch is set to LINE
or LS.
( 4 )
NORMAL / PINK NOISE-switch :
With this 2-positions-switch the ARGOS can be switched from normal operation mode
to a mode in which it generates pink noise on the outputs for calibration during installa-
tion.
( 5 )
MANUAL/AUTOMATIC switch
With this 2-positions-switch you can choose between two operation modes for the
"hold" mode : "automatic" or "hold"
( 6 )
TEST-button :
This button is meant for authorities to check wether the ARGOS actually is fitted within
the audio chain. When the Test-button is pressed, the output of the ARGOS is muted.
( 7 )
MODE-button:
By means of this pushbutton Argos can be put in "hold" mode
( 8 )
SOUND LEVEL LED-bar :
Displays the sound level in comparison with the preset maximum sound level (thresh
old).
( 9 )
GAIN REDUCTION LED-bar :
Displays the gain reduction the ARGOS has to perform on the input signal in order to
keep the output signal below the adjusted maximum sound level.
( 10 )
HOLD-indicator
Indicates that Argos is in 'hold" mode
( 11 )
NORMAL-indicator
Indicates that Argos is in normal operation mode. The hold function is not in
action
( 12 )
LINE,LS,MIC indacators
Indicates the operation mode selected by means of the MODE SELECTION switch
( 13 )
CLIP-indicator :
Indicates that the ARGOS isn't able to adjust the output level in case :
• the ARGOS is not fitted into the audio chain or
• the background noise is higher then the threshold.
( 14 )
MUTE-indicator:
Indicates that the ARGOS is muting the audio-output in case :
• the microphone isn't (properly) connected or
• a wrong type of microphone is used.
( 15 )
HOLD-indicator
Indicates that Argos is holding the gain reduction level
16
ARGOS - USER MANUAL
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