7.2.2
Launch the measurement
In
manual
mode: press key, the timer starts and indicates the measurement duration.
Timer and I/O
modes: see page 37)
7.2.3
During measurement
During measurement, three screens give information about the current measurement. They are accessible with the scrolling knob key.
S1:
it is the main screen that displays the instantaneous measurements:
•
LAeq, DI:
equivalent continuous level of sound pressure on the elementary integration time.
•
LCeq, DI:
equivalent continuous level of sound pressure on the elementary integration time.
•
LAeq,T:
equivalent continuous level of sound pressure A-weighted on the current measurement
duration.
•
LCeq,T:
equivalent continuous level of sound pressure C-weighted on the current measurement
duration.
•
LUpk:
level of maximum peak of sound pressure on the selected integration time.
•
Measurement duration
in DD/HH:MM:SS
S2:
this screen displays the results of values that will be stored in the memory at the end of the measurement.
•
LUpk:
level of maximum peak of sound pressure on the measurement duration.
•
LAeqM:
maximum value of the equivalent continuous level of sound pressure A-weighted of all the logging times.
•
LAeqm:
minimum value of the equivalent continuous level of sound pressure A-weighted of all the
logging times.
•
LAeq:
equivalent continuous level of sound pressure A-weighted on the whole measurement duration.
•
LAE:
level of noise exposure A-weighted.
•
D:
measurement duration in DD/HH:MM:SS
•
%:
saturation percentage of the input stage
•
Statistics indexes:
L01 – L10 – L50 – L90 – L95. They are calculated from stored samples.
To access to the same results for the C-weighting:
➢
Move the cursor in
1
then select
C
with the scrolling knob key.
S3:
this screen remains the general format of the measurement session:
•
Date of measurement start
•
Date of measurement end: not entered because measurement is still ongoing.
•
Measurement time: not entered because measurement is still ongoing.
•
Measurement mode: Leq-St
•
A and C frequency weightings for Leq:
Pond.
•
Elementary integration time for Leq in second:
DI
•
Frequency weighting of the level of pressure peak:
Lpk
•
Audio recording on threshold:
Audio
28
Perform some measurements
89,1
LpK
C
dB
1 s
.
78.7
81.4
76.7
83.9
dB
dB
E1
LAeq
LCeq
dB
dB
00/00:00:28
LAeq,T
LCeq,T
.
LCpk
LAeqM
LAeqm
LAeq
LAE
D
L01
L10
L50
L90
L95
99,5 dB
98,7 dB
31,4 dB
67,4 dB
78.5 dB
00:01:30
02%
95,4 dB
75,9 dB
68,1 dB
45,6 dB
33,2 dB
E2
A
Leq-St.
A-C
1s
C
non
Départ
Fin
Durée
Mode
Pond.
DI
Lpk
Audio
15/05
09:15
--------
00/00:06:52
15/05
13:15:45
.
E3
