2 Vocabulary
The terms and abbreviations listed below will be used throughout this user manual.
L
: represents the measurement mode: conventional sound level meter
L-St
: represents the measurement mode : conventional sound level meter with storage function. The sound pressure level is stored into the
memory at a sampling rate which is defined and planned.
L-Leq
: represents the measurement mode : conventional and integrating-averaging. Values are measured simultaneously.
L-St
: represents the measurement mode : integrating-averaging sound level meter with storage function The equivalent continuous sound level on
the logging time (DI) is stored into the memory.
S1+S2
: denomination for measuring or calculating the levels of 2 sound sources.
LXeq :
X-weighted equivalent continuous sound level on the logging time or on the total time of the measurement.
LXeqM :
Maximum X-weighted equivalent continuous sound level on the logging time, on the total time of the measurement.
LXeqm :
Minimum X-weighted equivalent continuous sound level on the logging time, on the total time of the measurement.
LXE :
X-weighted sound exposure level.
LXY :
X-weighted acoustic pressure level ; time weighting : Y
LXYmax :
Maximum X-weighted sound pressure level ; time weighting : Y
LXYmin :
Minimum X-weighted sound pressure level ; time weighting : Y
LUpK :
U-weighted peak sound level.
Echant.
: time between two successive storages of the sound pressure level into the memory, also called :
Sampling rate.
DI
: Programmable logging time for the calculation of the equivalent continuous sound level stored into the memory, also called : elementary
integration time.
X : generic marking
for frequency weightings, A – C or Z standardized (L, Leq, LE values)
U
:
generic marking
for frequency weightings, C or Z standardized (Lpk values)
Y : generic marking
for time weightings with : «
F
» for Fast, «
S
» for Slow or «
I
» for Impulse.
Man
: manual mode of measurement launching
I/O
: Launching mode of the measurement controlled by I/O plugs.
SXX
: order number of the measurement sessions. Limited to 25.
RST
: reset of calculations of maximum or minimum values memorized – erasing of measurement session or of the whole memory.
Sto. :
storage of measurement session into the memory.
S1
: name for measuring or calculating the equivalent continuous sound level of a first sound source.
S2
: name for measuring or calculating the equivalent continuous sound level of a second sound source.
S1+S2 :
name for measuring or calculating the equivalent continuous sound level of the two sound sources.
00/00:00:00
: format of the measurement time in Days/hours:minutes:seconds
00/00:00
: format of the measurement time in Days/hours:minutes
00:00:00
: format of the measurement time in Days/hours:minutes:seconds or format of the current time
18/11
: format of date
00:00
: format of current time in hours/minutes
Pond.
: A, C or Z frequency weightings
Cte
: time weighting or time constant : Fast – Slow - Impulse
S/S
: integration time controlled in Manuel mode :
S
tart/
S
top
C.Cl
: free field correction term in calibration mode.
Corr.
: corrective term of nominal benefit in calibration mode.
L01 – L10 – L50 – L90 – L95 :
Normalised statistics distribution, used in environmental studies
5
Vocabulary
