the phase of data deletion.
5.5 Calculate two sound sources
The sound level meter processes the acoustic signal of several sound sources over a time left to the free initiative of the operator. The
measured value here is the equivalent continuous level over this time.
5.5.1 Adjustment prior to measurement
1
– Select
S1 + S2 mode :
move the cursor with arrow keys in 1 and select «
S1 + S2
» with the scrolling
knob key.
2
– Select the frequency weighting.
Possible choices are :
A
frequency weighting -
C
frequency weighting -
Z
frequency weighting (LIN).
Place the cursor with arrow keys on the area
2
and select with scrolling knob
A
,
C
or
Z
.
5.5.2 Make calculation of two sound sources
•
Measure
S1
sound source
- Move the cursor to 3 and select
S1
with the scrolling knob key then launch the measurement with pictogram.
- Stop the measurement when it seems representative (stabilized evolution of the LXeq value).
•
Measure
S2
sound source :
- Move the cursor to 3 and select
S2
with the scrolling knob key then launch the measurement with pictogram.
17
Make some measurements
Ongoing
measurement
Results
RST active
Deletion
Procedure
1
2
3
