When the instrument is used in analyzer mode for the measurement noise equipment in correspondence with NR curves (as per NF S
30-010 standard):
Measurement beginning in
Tim
mode works only for a programming of free duration
T
and does not work for preset durations (3 - 5 -
10 - 15 - 30 - 60 s).
14.3.2
I
/O 1 Out
It is the output detection in relation to a preset sound level and concerns
the measurement modes below
.
A high level appears in output when the value of sound pressure level reaches and exceeds some value.
Settings are made in the menu
I/O
.
➢
Select the type of level:
L/Leq
or
Lpk
➢
Set the desired detection level with the scrolling knob key (by step of 1 dB).
➢
Select a time-delay of stability of the continuous signal of detection after being below the sound
level (from 1s to 10s by step of 1s).
Conventional sound level meter and averaging-integrating with storage
•
For
LpK
selection: the detection comes from the
peak pressure level C or Z-weighted according
to the measurement programming.
•
For
L/leq
selection: the detection comes from
the level of sound pressure LXY indicated under
“L”
Integrating-averaging sound level meter with storage – A and C weighted
•
For
LpK
selection: the detection comes from
the peak pressure level
•
For
L/leq
selection: the detection comes from
the
LAeq
equivalent continuous level only
Integrating-averaging sound level meter – A and C weighted and analyzer by octave bands filters
from 31.5Hz to 8 kHz with storage
Integrating-averaging sound level meter – A and C weighted and analyzer by third octave bands filters from 12.5
Hz to 20 kHz (class 1) or from 25 Hz to 10 kHz (class 2) _ (
option)
.
•
For
LpK
selection: the detection comes from the
peak pressure level
•
For
L/leq
selection: the detection comes
from the
LXeq
equivalent continuous
level chosen in the selection of reading values
Running information
56
I/O 2
Out
I/O 1
In
I/O 1
Out
:
I/O
DC : 0-10V
100 dB
L/LeqA
1s
30 50
70 90 110 130
dB
89,1
LpK
C
dB
AF
L
LAeq
LCeq
dB
55,2
98.7
31.4
dB
dB
E1
00:00:05
RAZ
The sampling rate of the value is fixed at
16 Hz, that is a comparison to LXY
threshold every 63 ms.
89,1
LpK
C
dB
01s
.
88.7
91.4
86.7
90.8
dB
dB
E1
dB
dB
T = 00/00:00:28
LAeq
LCeq
LAeq,T
LCeq,T
The comparison is made for each
duration of elementary integration (from
1/16°s to 60s)
E1
110
090
080
070
050
030
010
A C Z 63 250 1k 4k 16K
123.4
.
250
.
dB
00/00:00:24
Hz
Man
01s
The comparison is made for each
duration of elementary integration
(from 1/16°s to 60s)
