2 Vocabulary
L-Leq
: represents the measurement mode: conventional and integrating-averaging. Values are measured simultaneously.
Leq-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.
1/1 oct:
analyser integrating-averaging sound level meter with storage function and with filter by octave bands
1/3 oct
: analyser integrating-averaging sound level meter with storage function and with filter by third octave bands
NR
: mode to measure noise level of machines or installations according to NR curves.
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 -LUpKmax:
U-weighted peak sound level – maximum U-weighted peak sound level.
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 standardized frequency weightings, A - C – Z or filters by octave bands (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.
BE
: Back-Erase: deletion function of the measurement preceding the press of the BE key (adjustable duration)
SP:
Specific marking: function allowing to find during the measurement one or several specific sources without distinction.
Man
: manual mode of measurement launching
I/O:
Launching mode of the measurement controlled by I/O plugs.
SXXX
: order number of the measurement sessions. Limited to 999.
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:
Normalized statistics distribution, used in environmental studies
: audio recording on threshold active function
: audio recording in progress
Vocabulary
8
