Impulse Time weighting
L
AImin
The minimum Sound level with ‘A’ Frequency weighting and
Impulse Time weighting
L
AS
Sound level with ‘A’ Frequency weighting and Slow Time
weighting
L
ASmax
The maximum Sound level with ‘A’ Frequency weighting and Slow
Time weighting
L
ASmin
The minimum Sound level with ‘A’ Frequency weighting and Slow
Time weighting
L
CE
Sound Exposure Level (SEL) with ‘C’ frequency weighting
L
ceq,t
Equivalent continuous sound pressure level. A measure of the
average sound pressure level during a period of time, t, in dB
with ‘C’ weighting.
L
CF
Sound level with ‘C’ Frequency weighting and Fast Time weighting
L
CFmax
The maximum Sound level with ‘C’ Frequency weighting and Fast
Time weighting
L
CI
Sound level with ‘C’ Frequency weighting and Impulse Time
weighting
L
CImax
The maximum Sound level with ‘C’ Frequency weighting and
Impulse Time weighting
L
Cpeak
Peak Sound pressure level with ‘C’ frequency weighting
L
CS
Sound level with ‘C’ Frequency weighting and Slow Time
weighting
L
CSmax
The maximum Sound level with ‘C’ Frequency weighting and Slow
Time weighting
L
EP,d
Daily personal noise exposure
L
eq
Equivalent continuous sound pressure level. A measure of the
average sound pressure level during a period of time, t, in dB
L
IeqT
Impulse weighted L
eq,t
as defined by DIN 45641
L
n
Statistical analysis of noise levels. The n denotes the percentage
exceedence.
L
ZE
Sound Exposure Level (SEL) with ‘Z’ frequency weighting
L
Zeq,t
Equivalent continuous sound pressure level. A measure of the
average sound pressure level during a period of time, t, in dB
with ‘Z’ weighting.
L
ZF
Sound level with ‘Z’ Frequency weighting and Fast Time weighting
L
ZFmax
The maximum Sound level with ‘Z’ Frequency weighting and Fast
Time weighting
L
ZI
Sound level with ‘Z’ Frequency weighting and Impulse Time
weighting
L
ZImax
The maximum Sound level with ‘Z’ Frequency weighting and
Impulse Time weighting
L
ZS
Sound level with ‘Z’ Frequency weighting and Slow Time
weighting
L
ZSmax
The maximum Sound level with ‘Z’ Frequency weighting and Slow
Time weighting
Overload The input to the Sound Level Meter is too high for the current
measurement range. Change the range
Peak The maximum value reached by the sound pressure at any
instant during a measurement period (in dB usually with C
frequency weighting)
SEL Sound Exposure Level, displayed as L
AE
, L
CE
or L
ZE
Slow Time Weighting A standard time weighting applied by the Sound Level Meter
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