18.1.1 Settings before measurement
1
– Choose the DI elementary integration time:
➢
Put the cursor on box
1
and choose with the scrolling knob key among:
1/16 s,1/8 s,1/4 s/1/2 s,1 s,
2 s, 3 s, 5 s, 10 s, 15 s, 30 s, 60 s
.
2
– Choose the launch mode of measurement in
2
with the scrolling knob key among 3:
Man
(manual) –
Tim
(programmer) –
I/O
(through the I/O signal). For the Timer and I/O modes, see page 37.
Note
: the current time is displayed before the measurement launch: 15:37:28 and the elementary integration
time
1/8 s
for the calculation of the continuous equivalent level displayed for control.
18.1.2 Measurement launch
Measurement launch type: manual
Man
In
manual
mode: press directly the
icon to launch the measurement with elementary data storage according
to the integration time chosen (1 s for example), the chronometer starts and indicates the duration: for example
00/00:00:24
18.1.3 During measurement
During measurement, three screens inform on the current measurement. They are accessible through the
scrolling knob key.
S1:
is the main screen which displays the values and a spectral type graphical representation.
The different bars represent:
•
LAeq
-
LCeq – Lzeq:
continuous equivalent levels of A,C, Z weighted acoustic pressure.
•
LXeq:
continuous equivalent levels of acoustic pressure filtered by third octave bands from 12.5 Hz to 20 kHz (class 1) or
from 25 Hz to 10 kHz (class 2).
•
The
Measurement duration
expressed in DD/HH:MM:SS completes the display
Read the values:
➢
Put the cursor in position
1
with the arrows among
DI- global – Max - min
➢
Move the cursor in position
2
with the vertical arrows then choose with the scrolling knob key the
weighting or filter value and read the result displayed in box
3
.
A vertical line is moving on the screen and is overlapped with the bar corresponding to the weighting
or
filter chosen in
2.
➢
Proceed the same way to read the different values according to the choice in
1: DI - global – Max -
min
•
DI:
weighted and filtered continuous equivalent levels for each DI elementary integration time (01
s for example)
•
Global:
weighted and filtered continuous equivalent levels of the current measurement
•
Max:
maximum weighted and filtered continuous equivalent levels reached since the measurement start (basis: DI
elementary integration duration)
•
min:
minimum weighted and filtered continuous equivalent exceeded since the
measurement start (basis: DI elementary integration duration)
These different values a represented:
•
by a horizontal line for the level
max
•
a full colored bar for the
global
level
•
an empty bar for the
min
level
71
Options
1
2
E1
130
110
090
080
070
050
030
010
A C Z 16 63 250 1k 4k 16K
65.4
.
125
dB
1/8s 15:37:28
Hz
Man
01s
RAZ
E1
130
110
090
080
070
050
030
010
A C Z 16 63 250 1k 4k 16K
65.4
.
125
dB
00/00:00:24
Hz
Man
01s
E1
130
110
090
080
070
050
030
010
A C Z 16 63 250 1k 4k 16K
65.4
.
125
dB
00/00:00:24
Hz
E1
Global
1
2
3
E1
130
110
090
080
070
050
030
010
A C Z 16 63 250 1k 4k 16K
65.4
.
125
dB
00/00:00:24
Hz
E1
Global
Max
global
min
