Instruction manual

vii
Quanti er Notation
(Sound level and sound pressure level are expressed uniformly as sound pres-
sure level, distinguished by the use of frequency weighting.)
Measurement value
The time weighting characteristics
F, S, 10 ms I
L
p
Sound pressure
level
A-weighted sound pressure level L
AF
, L
AS
, L
A10ms
L
AI
C-weighted sound pressure level L
CF
, L
CS
, L
C10ms
(L
CI
)
Z-weighted sound pressure level L
ZF
, L
ZS
, L
Z10ms
(L
ZI
)
L
eq
Equivalent
continuous
sound level
Equivalent continuous A-weighted
sound level
L
Aeq
L
AIeq
Equivalent continuous C-weighted
sound level
L
Ceq
(L
CIeq
)
Equivalent continuous Z-weighted
sound level
L
Zeq
(L
ZIeq
)
L
E
Sound exposure
level
A-weighted sound exposure level L
AE
(L
AIE
)
C-weighted sound exposure level L
CE
(L
CIE
)
Z-weighted sound exposure level L
ZE
(L
ZIE
)
L
max
, L
min
Maximum sound
level
Maximum A-weighted sound level L
AFmax
, L
ASmax
, L
A10msmax
L
AImax
Maximum C-weighted sound level L
CFmax
, L
CSmax
, L
C10msmax
(L
CImax
)
Maximum Z-weighted sound level L
ZFmax
, L
ZSmax
, L
Z10msmax
(L
ZImax
)
L
N
Percentile sound
level
Percentile A-weighted sound level L
AFNn
, L
ASNn
, L
A10msNn
(L
AINn
)
Percentile C-weighted sound level L
CFNn
, L
CSNn
, L
C10msNn
(L
CINn
)
Percentile Z-weighted sound level L
ZFNn
, L
ZSNn
, L
Z10msNn
(L
ZINn
)
L
peak
Peak sound level
A-weighted peak sound level (L
Apeak
) ---
C-weighted peak sound level L
Cpeak
---
Z-weighted peak sound level L
Zpeak
---
L
tm5
Takt-max sound
level
Takt-max A-weighted sound level L
Atm5
---
Takt-max C-weighted sound level (L
Ctm5
) ---
Takt-max Z-weighted sound level (L
Ztm5
) ---
• Z-weighted level is the same as an existing  at-weighted level.
• The combination of peak sound level and takt-max with I character-
istics does not exist.
• Measurement value shown in brackets ( ) indicates items that can be
displayed as operation steps but are not used or not suitable.