uncoding… and so on. Several cases or events are juxtaposing. For example: F plane.
So we can code up to 5 sources simultaneously.
Note:
the access to the field to select the weighting or filter on the top left of the screen remains possible, as well as the switching
between spectrum and time evolution. In this case, the area
C _ NC
disappears and pressing OK has no incidence on the coding
which is no more accessible, but not stopped. It becomes active again when the black area of selections returns to its place in the
codes line as an underlining.
6.4.3
Identification of the sources to code
Identification texts of events can be assigned through the
LDB300 software
(see user manual of the software).
The inscription appears when coding on the bottom left of the screen.
If there is no text, the location stays empty.
6.4.4
Activate the particular marking function: PM
(see below)
6.4.5
Using in I/O mode
In case of monitoring of an event or of a noise source with a PLC, it is possible to link the sound level meter to code the time evolution
of the noise environment at the pace of the PLC order without being on-site.
For that:
➢
Configure in the
CODING_BE_PM
menu the
I/O
proposal
in front
of
Coding
(cf page 13).
➢
Connect a suitable cable between the PLC and the sound level meter (cf page 65).
The
I/O
code is placed imperatively in box
1
,
it replaces automatically the manual coding when the PLC reports the an emergence of
the event.
➢
Anyway, you can take control of the PLC and code in I/O box with the keypad if you want to mark a particular moment linked
to this event even if it is not really present (simulation, connected situation,...)
The
I/O
automatic coding programing also
allows the manual coding of the others codes (
2 to 4 and PM)
according to the fundamental
principle (see page 21).
6.5 Particular marking
The sound level meter has a function called
“Particular Marking”
that simplify the events coding.
6.5.1
Principle
This marking allows a specific identification of the short Leq data without distinction in order to remind you when processing the
presence of specific events that caught your attention.
6.5.2
Mark: scree/keypad use
This function is only accessible with the following modes:
Integrating-averaging sound level meter – A and C weighted and analyzer by octave bands filters or third
octave band filters (option)
It is activated after the measurement launching through a specific screen inserted in the chain results.
Integrating-averaging sound level meter with storage – A and C weighted
This function is activated with a simple
continuous press
on the
OK
key
as long as the particular source remains active.
The
elementary durations are coded for a further processing by the software.
Note:
this key is different from the coding principle that requires a press on OK for Code and a press on OK for no Code.
Events coding _ BE_PM
22
