Langmatz EK 533, Operating Instructions Manual

Page: 32 / 60

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"Lowering" group
• This parameter group determines the
night-time reduction of the relevant
sound, i.e. whether and how much a
sound’s volume is reduced.
Fig. 46
Control
Specifies how the reduction is controlled:
• "deactivated":
No reduction
• Opt. 1:
The sound is reduced using
optional input 1.
• Opt. 2:
The sound is reduced using
optional input 2.
• Opt. 3:
The sound is reduced using
optional input 3.
• "time controlled":
The RTC controls
the reduction.
Fig. 47
Notes
• If the Langmatz EK 533 plus has no
built-in RTC, this option is not available.
• Do not use the same optional input for
the sound for night-time sound reduction
and (de)activation (e.g. do not use "Opt.
1" to control the reduction and also
(de)activation on release signal).
Level (dB)
• Sets the reduction from 0 to 55 dB. When night-time reduction is active, this value is deducted
from the maximum level; see "Level max. current (dB)" parameter for the currently applicable
maximum level.
• The following restrictions apply:
This value can only be set if an optional input has been selected for "Input". (In other words,
"inactive" is not selected here.)
"Level max. (dB)" minus reduction "Level (dB)" cannot be lower than "Level min. (dB)",
otherwise an active night-time reduction could result in invalid values.