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3.2 Set Internal Volume
Increase volume
hold
The volume should only be increased far enough to allow clear communication, and to avoid
feedback.
Reduce volume
hold
3.3 Set Attenuation
The Delta intercom uses an automatic speech equaliser.
Its intelligent electronics automatically reduce the volume of the direction of speech which is
not in use. This suppresses feedback as far as possible.
If the configuration of the intercom components is not optimum, or if the environment is not
favourable (large rooms with a lot of echo), there may be feedback nonetheless. In this case,
the speech equaliser settings will need to be changed. This is achieved by increasing the
attenuation.
Even when the volumes have been increased to improve communication, the attenuation will
usually need to be adjusted too.
The attenuation level is preset at "8" on the employee's side and cannot initially be adjusted,
as this function is disabled. In order to adjust the attenuation level, you first have to enable
this function using menu function 8 of the set up menu. See page 28 for further information.
Version 1.2
Hold down the "internal volume" button. The
press
display shows the current volume level for the
main control (internal loudspeaker).
Press the "+" button. Each time it is pressed, the
volume is increased by one level up to the
maximum.
Hold down the "internal volume" button. The
press
display shows the current volume level for the
main control (internal loudspeaker).
Press the "-" button. Each time it is pressed, the
volume is reduced by one level down to the
minimum.
16
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