LRF-04
User’’s manual
29
ENOS: If the ENOS (Extraneous Noise Override System)
option is activated, the limiter will control the attenuation in
such a way that even if the ambient noise level exceeds the
programmed limit, the level of the music will remain audible,
below the programmed limit, thus allowing the music to continue. This option should
always be activated when the limiter is installed in places with a high level of ambient
noise, (bars, pubs etc.) or has an emission limit below 90 dBA. In this case the level
detected by the sensor may be higher than the programmed limit. To activate this option
the internal self-checking system must be activated.
Sound insulation: This allows you to introduce sound insulation (level difference) in
decibels (dB) between the emitting and receiving establishments. This insulation will be
provided for the following octave bands with central frequencies of 31.5 Hz, 63 Hz, 125
Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4kHz and 8 kHz.
Attenuation time: This allows you to introduce the 60 dB penalisation that will be applied
when the attenuation needed to prevent the programmed limit from being exceeded is
higher than 50 dB. If 0 seconds are programmed, 60 dB attenuation will not take place.
Non-working periods: An option that allows you to programme up to 30 non-working
periods, during which the maximum sound pressure level may be exceeded without
penalisation.
Leq time: This allows you to define the duration of equivalent sound level measurement
to be stored in the memory. Leq time may be programmed between 2 minutes and 1
hour. The shorter the Leq time, the more detailed the information obtained, although the
memory will fill sooner. When this occurs, the limiter continues to store records by
overwriting the earliest records (FIFO Buffer). To store one month’s information, define a
Leq time equal to or longer than 3 minutes. We recommend programming the LRF-04
with a Leq time of 5 minutes. The technical specifications (chapter 7) give the storage
capacity of the LRF-04. The LRF-04 memory may be extended to store more detailed
information of longer duration. For further details, consult your official
dealer.
Continuous printing: This option allows you to print the following information at the end of
measurement of each Leq interval, as long as a printer is connected:
Date and time of the beginning of the interval
Date and time of the end of the interval
Value of the equivalent continuous level measured during this interval in the
emitting establishment
Max LF limit: This allows you to introduce the maximum Fast limit permitted. The LRF-04
records the time during which the limit was exceeded. This data is for your information
only and will never be used to attenuate the music level in the room.
Modem parameters: This option allows you to select the number of rings the LRF-04 will
wait before answering a request received via the modem.
Language: This allows you to choose the language in which all the messages on the
LCD display and in the printouts will appear.
Delete records: This allows you to delete all the information stored in the LRF-04
memory except for the programming, the counter that registers the number of times
records have been deleted and the records of the last 10 deletions.
Transport: This allows you to completely switch off the LRF-04 so that it may be stored
or transported. To carry out this operation: 1) Select the
Transport
option from the
programming menu; 2) Disconnect the LRF-04 from the mains and 3) press ENTER (C).
Change password: This allows you to change the password.
Exit: This finalises the programming and requests confirmation that new programming
has been recorded.